ANSI∕NEMA WC 58(ICEA S-75-381-2008)

PORTABLE AND POWER F EEDER EEDER C ABLES FOR USE IN

MINES AND SIMILAR A PPLICATIONS PPLICATIONS

Appr p prov ov ed as an Amer A meric ic an Nati onal on al Stand St andard ard ANSI Ap prov pr oval al Date: Dat e: May 1, 2008

NEMA Standard Publication No. WC 58-2008 ICEA Standard Publication No. S-75-381-2008

Portable and Power Feeder Cables for Use in Mines and Similar Applications

Published by: National National Electrical Manufacturers Asso ciation th 1300 North 17 Street, Suite 1752 Rosslyn, Virginia 22209 www.nema.org

© Copyright 2008 by the National Electrical Manufacturers Association and the Insulated Cable Engineers Association. All rights including translation into other languages, reserved under the Universal Copyright Convention, the Berne Convention for the Protection of Literary and Artistic Works, and the International and Pan American Copyright Conventions.

Appr p prov ov ed as an Amer A meric ic an Nati onal on al Stand St andard ard ANSI Ap prov pr oval al Date: Dat e: May 1, 2008

NEMA Standard Publication No. WC 58-2008 ICEA Standard Publication No. S-75-381-2008

Portable and Power Feeder Cables for Use in Mines and Similar Applications

Published by: National National Electrical Manufacturers Asso ciation th 1300 North 17 Street, Suite 1752 Rosslyn, Virginia 22209 www.nema.org

© Copyright 2008 by the National Electrical Manufacturers Association and the Insulated Cable Engineers Association. All rights including translation into other languages, reserved under the Universal Copyright Convention, the Berne Convention for the Protection of Literary and Artistic Works, and the International and Pan American Copyright Conventions.

NOTICE AND DISCLAIMER The information in this publication was considered technically sound by the consensus of persons engaged in the development and approval of the document at the time it was developed. Consensus does not necessarily mean that there is unanimous agreement among every person participating in the development of this document. The National Electrical Manufacturers Association (NEMA) standards and guidelines publications, of which the document contained herein is one, are developed through a voluntary consensus standards development process. This process brings together volunteers and/or seeks out the views of person who have an interest in the topic covered by this publication. While NEMA administers the process and establishes rules to promote fairness in the development of consensus, it does not write the document and it does not independently test, evaluate, or verify the accuracy or completeness of any information or the soundness of any judgments contained in its standards and guideline publications. NEMA disclaims liability for any personal injury, property, or other damages of any nature whatsoever, whether special, indirect, consequential, or compensatory, directly or indirectly resulting from the publication, use of, application, or reliance on this document. NEMA disclaims and makes no guarantee or warranty, expressed or implied, as to the accuracy or completeness of any information published herein, and disclaims and makes no warranty that the information in this document will fulfill any of your particular purposes or needs. NEMA does not undertake to guarantee the performance performance of any individual manufacturer or seller’s products or services by virtue of this standard or guide. In publishing and making this document available, NEMA is not undertaking to render professional or other services for or on behalf of any person or entity, nor is NEMA undertaking to perform any duty owed by any person or entity to someone else. Anyone using this document should rely on his or her own independent judgment or, as appropriate, seek the advice of a competent professional in determining the exercise of reasonable care in any given circumstances. Information and other standards on the topic covered by this publication may be available from other sources, which the user may wish to consult for additional views or information not covered by this publication. NEMA has no power, nor does it undertake to police or enforce compliance with the contents of this document. NEMA does not certify, test, or inspect products, designs, or installations for safety or health purposes. Any certification or other statement of compliance with any health or safety-related information information in this document shall not be attributable to NEMA and is solely the responsibility of the certifier or maker of the statement.

ANSI/NEMA WC 58-2008 ICEA S-75-381-2008 Page i

CONTENTS Page

Foreword ...................................................................................................................................vi Section 1 GENERAL ................................................................................................................................. 1 1.1 Scope......................................................................................................................................... 1 Portable Cables 2,000 Volts or Less ......................................................................................... 1 Portable Cables 2,001–5,000 Volts (100% Insulation Level) .................................................... 1 Portable Cables 0–25,000 Volts (100% Insulation Level)......................................................... 1 Mine Power 2,001–25,000 Volts (100% and 133% Insulation Level) ....................................... 1 1.2 General Information................................................................................................................... 2 1.3 Information to be Supplied by User ........................................................................................... 2 Section 2 CONDUCTORS ......................................................................................................................... 3 2.1 Physical and Electrical Properties ............................................................................................. 3 2.1.1 Copper Conductors ....................................................................................................... 3 2.1.2 Aluminum Conductors................................................................................................... 3 2.1.3 Flexible Conductors ...................................................................................................... 3 2.2 Conductor Size Units................................................................................................................. 3 2.3 Conductor DC Resistance per Unit Length ............................................................................... 4 2.3.1 Direct Measurement of DC Resistance per Unit Length ............................................... 4 2.3.2 Calculation of DC Resistance per Unit Length ............................................................. 4 2.4 Conductor Diameter .................................................................................................................. 4 Section 3 PORTABL E SINGLE AND MULTIPLE CONDUCTOR POWER CABLE .............................12 3.1 Scope....................................................................................................................................... 12 3.2 DC Systems............................................................................................................................. 12 3.3 Single-Conductor Cables, Nonshi elded, 2,000 Volts or Les s ................................................. 12 3.4 Type W And G Two-Conductor Cables, 2,000 Volts or Less.................................................. 12 3.4.1 Two-Conductor Flat Twin Cables................................................................................ 12 3.4.2 Two-Conductor Round Cables.................................................................................... 13 3.5 Type W, G, G-GC and G-CGC. Three- and Four-Conductor Cables, 2,000 Volts or Less .... 13 3.5.1 Three- and Four-Conductor, Round Type W Cables without Grounding Conductors 13 3.5.2 Three- and Four-Conductor Round Type G Cables with Grounding Conductors ...... 13 3.5.3 Three-Conductor Flat Type G C able with Grounding Co nductors.............................. 13 3.5.4 Three-Conductor Flat G-GC Cable with Grounding Conductor and Ground-Check Conductor .................................................................................................................... 14 3.5.5 Three-Conductor Round Type G-GC and Type G-CGC Cable .................................. 14 3.5.6 Four-Conductor Flat Type W Cable Without Grounding Conductors ......................... 14 3.6 Type W AND G, Five- and Six-Conductor, 2,000 Volts or Less.............................................. 14 3.6.1 Five- And Six-Conductor Round Type W Cables without Grounding Conductor ....... 14 3.6.2 Five-Conductor Round Type G Cables with Grounding C onductor............................15 3.7 Type PG, Two- and Three-Conductors with Grounding Conductor, 2,000 Volts or Less....... 15 3.8 Type PCG, Two- and Three-Conductors with Grounding Conductor and Two Control Conductors, 2,000 Volts or Less ............................................................................................. 15 3.9 Type G, Three-Conductor Round with Grounding Conductors 2,001-5,000 Volts ................. 15 3.10 Shielded Cable 25,000 Volts or Less ...................................................................................... 15 3.10.1 Shielded Cables 2,000 Volts or Less ........................................................................ 15 3.10.2 Shielded Cables 2,001 to 5,000 Volts....................................................................... 17 3.10.3 Shielded Cables 5,001 to 25,000 Volts..................................................................... 19 3.11 Power Conductors ................................................................................................................... 20 3.12 Control and Ground-Check Conductors.................................................................................. 20 3.12.1 Control Conductors for Type PCG and SHD-PCG Cables ....................................... 20 3.12.2 Ground-Check Conductors ....................................................................................... 20 3.12.3 Ground-Check Conductor for Flat G-GC .................................................................. 20 © Copyright 2008 by the National Electrical Manufacturers Association and the Insulated Cable Engineers Association

ANSI/NEMA WC 58-2008 ICEA S-75-381-2008 Page ii 3.13

Grounding Conductors ............................................................................................................ 20 3.13.1 Size and Number ...................................................................................................... 20 3.13.2 Flat Twin Type G ....................................................................................................... 21 3.13.3 Flat Three-Conductor Type G ................................................................................... 21 3.13.4 Round Type G, G-GC and G-CGC ........................................................................... 21 3.13.5 Flat Three-Conductor Type G-GC ............................................................................ 21 3.13.6 Round Five-Conductor Type G, Type PG, and PCG ................................................ 21 3.14 Stress Control Layer (Conductor Shield) ................................................................................ 22 3.14.1 Extruded Stress Control Layer (Conductor Shield)................................................... 22 3.15 Power Conductor Insulation .................................................................................................... 22 3.15.1 Insulation Physical a nd Electrical Requirements ...................................................... 22 3.15.2 Insulation Thickness.................................................................................................. 22 3.16 Ground Check and Control Conductor Insulation ................................................................... 23 3.17 Tapes and Braids .................................................................................................................... 23 3.17.1 Power Conductors..................................................................................................... 23 3.17.2 Ground Check and Control Conductors.................................................................... 24 3.18 Conductor Identification........................................................................................................... 27 3.18.1 Power Conductors..................................................................................................... 27 3.18.2 Control and Ground-check Conductors .................................................................... 27 3.19 Shielding .................................................................................................................................. 27 3.19.1 Metallic Braid Shields ................................................................................................ 28 3.19.2 Metal Wire Shields .................................................................................................... 28 3.20 Conductor Assembly ............................................................................................................... 28 3.21 Jackets..................................................................................................................................... 29 3.21.1 Duty Rating................................................................................................................ 29 3.21.2 General...................................................................................................................... 29 3.21.3 Thickness of Jacket................................................................................................... 29 3.22 Completed Cable..................................................................................................................... 29 3.22.1 Outside Diameters .................................................................................................... 29 3.22.2 Diameter Tolerances................................................................................................. 29 3.22.3 Marking...................................................................................................................... 30 3.22.4 Tests.......................................................................................................................... 30 SECTION 4 CONSTRUCTIONS OF MINE POWER FEEDER CAB LE ..................................................... 49 4.1 Scope....................................................................................................................................... 49 4.2 General Requirements ............................................................................................................ 49 4.3 Conductors .............................................................................................................................. 49 4.3.1 Power Conductors....................................................................................................... 49 4.3.2 Conductor Stress Control Layer.................................................................................. 50 4.3.3 Grounding Conductors ................................................................................................ 50 4.3.4 Ground-check Conductor ............................................................................................ 50 4.4 Insulation ................................................................................................................................. 50 4.4.1 Power Conductor ........................................................................................................ 50 4.4.2 Ground-check Conductor ............................................................................................ 50 4.5 Insulation Shielding ................................................................................................................. 50 4.5.1 Nonmetallic Covering .................................................................................................. 50 4.5.2 Metal Component ........................................................................................................ 51 4.6 Identification ............................................................................................................................ 52 4.7 Conductor Assembly ............................................................................................................... 52 4.8 Jacket ...................................................................................................................................... 52 4.9 Outside Diameter..................................................................................................................... 52 4.10 Tests ........................................................................................................................................ 52

© Copyright 2008 by the National Electrical Manufacturers Association and the Insulated Cable Engineers Association

ANSI/NEMA WC 58-2008 ICEA S-75-381-2008 Page iii Section 5 SPECIAL CONSTRUCTIONS ................................................................................................ 58 5.1 Portable Arc-Welding Cables .................................................................................................. 58 5.1.1 Scope ..........................................................................................................................58 5.1.2 Conductor.................................................................................................................... 58 5.1.3 Separator..................................................................................................................... 58 5.1.4 Jackets ........................................................................................................................58 5.1.5 Number of Wires, Outside Diameters, and Diameter Tolerances ..............................58 5.1.6 Flame Test Requirements...........................................................................................58 Section 6 TESTING AND TEST METHODS........................................................................................... 63 6.1 Testing ..................................................................................................................................... 63 6.2 Tests on Samples.................................................................................................................... 63 6.3 Conductor Test Methods ......................................................................................................... 63 6.3.1 Method for DC Resistance Determination ..................................................................63 6.3.2 Methods for Cross-sectional Area Determination ....................................................... 63 6.3.3 Methods for Diameter Determination .......................................................................... 64 6.4 Test Samples and Specimens fFor Physical and Aging T ests ............................................... 64 6.4.1 General........................................................................................................................ 64 6.4.2 Number of Thickness Measurements ......................................................................... 64 6.4.3 Measurement of Thickness ......................................................................................... 64 6.4.4 Sampling of Insulation for Physical and Aging Tests .................................................. 64 6.4.5 Sampling of Jacket for Physical and Aging Tests ....................................................... 64 6.4.6 Number of Test Specimens......................................................................................... 64 6.4.7 Size of Specimens ...................................................................................................... 65 6.4.8 Preparation of Specimens of Insulation and Jacket.................................................... 65 6.4.9 Specimens with Thin Jackets Crosslinked to Insulation ............................................. 65 6.4.10 Specimen for the Tear Test....................................................................................... 65 6.4.11 Specimen for Accelerated Aging Test....................................................................... 66 6.4.12 Calculation of Area of Test Specimens..................................................................... 66 6.4.13 Physical Test Procedures ......................................................................................... 66 6.4.14 Aging Test ................................................................................................................. 66 6.4.15 Physical Tests for Semi Conducting Material Intended for Extrusion ....................... 67 6.4.16 Retests for Physical and Aging Properties and Thickness ....................................... 67 6.5 Capacity and Power Factor Tests ........................................................................................... 68 6.6 Accelerated Water Absorption................................................................................................. 68 6.6.1 General........................................................................................................................ 68 6.6.2 Electrical Method (EM-60)........................................................................................... 68 6.7 Surface Resistance ................................................................................................................. 68 6.8 Thickness of Tapes ................................................................................................................. 68 6.9 Heat (Deformation) Distortion.................................................................................................. 68 6.10 Heat Shock .............................................................................................................................. 69 6.11 Cold Bend ................................................................................................................................ 69 6.12 Hot Creep Test ........................................................................................................................ 69 6.13 Solvent Extraction.................................................................................................................... 69 6.14 Volume Resistivity ................................................................................................................... 69 6.14.1 Test Samples ............................................................................................................ 69 6.15 Stripping Test .......................................................................................................................... 69 6.16 Retests for Tests Covered by 6.6 through 6.15 and 6.17.4 .................................................... 70 6.17 Electrical Tests on Completed Cables .................................................................................... 70 6.17.1 Voltage Tests ............................................................................................................ 70 6.17.2 Insulation Resistance ................................................................................................ 71 6.17.3 Partial-Discharge Test Procedure............................................................................. 71 6.18 Method Determining Permittivity (S.I.C.) and Dielectric Strength of E xtruded Nonconducting Polymeric Stress Control Layers.................................................................... 71


ANSI/NEMA WC 58-2008 ICEA S-75-381-2008 Page iv An nex es A

(Informative) Symbols and Abbreviations................................................................................ 72

B

(Normative) Definitions for Maximum Temperature of Conductors in Insulated Wire and Cable ................................................................................................................................ 73

C

(Normative) Emergency Overload Ratings for Insulated Cables ............................................ 74

D

(Normative) ICEA Publications, ASTM, NEMA Standards and NFPA .................................... 75

E

(Informative) Shielding............................................................................................................ 78

F

(Informative) Minimum Bending Radius for Cables................................................................. 80

J

Informative) Voltage Test after Installation.............................................................................. 85

K

(Informative) Additional Conductor Information ....................................................................... 86

Tables 2-1

Weight Increment Factors, K ..................................................................................................... 5

2-2

Schedule for Establishing Maximum DC Resistance ................................................................ 6

2-3

Nominal DC Resistance in Ohms per 1,000 Feet at 25 °C of Concentric Lay Stranded Conductors ................................................................................................................................ 7

2-4

Nominal DC Resistance in Ohms per 1,000 Feet at 25 °C for Flexible Annealed Copper Conductors ................................................................................................................................ 8

2-5

Nominal Diameters for Copper and Aluminum Conductors .................................................... 10

2-6

Factors for Determining Nominal Resistance of Stranded Conductors per 1,000 Feet at 25 °C.................................................................................................................................... 11

3-1

Power Conductor Insulation Requirements............................................................................. 25

3-2

Ground-Check and Control Conductor Insulation Requirements ........................................... 26

3-3

Extra-Heavy-Duty Crosslinked Jackets and Thermoplastic Polyurethane..............................32

3-4

Heavy-Duty Crosslinked Jackets............................................................................................. 33

3-5

Maximum Length of Lay .......................................................................................................... 33

3-6

2,000 Volts or Less Single-Conductor Portable Power Cable ................................................ 34

3-7

2,000 Volts or Less Type W and G Two-Conductor Flat Twin Portable Power Cables.......... 35

3-8

2,000 Volts or Less Type W and G Two-Conductor Round Portable Power Cables.............. 35

3-9

2,000 Volts or Less Type W and G Three-Conductor Round Portable Power Cables ........... 36

3-10

2,000 Volts or Less Type W and G Four-Conductor Round Portable Power Cables ............. 36

3-11

2,000 Volts or Less Type G Three-Conductor Flat Portable Power Cables with Two Grounding Conductors ............................................................................................................ 37

3-12

2,000 Volts or Less Type G-GC Three-Conductor Round Portable Power Cables with Two Grounding Conductors and One Ground-Check Conductor ........................................... 37

3-13

2,000 Volts or Less Type G-GC Three Conductor Round Portable Power Cables with Three Grounding Conductors and One Ground-Check Conductor ........................................ 38

3-14

2,000 Volts or Less Type G-GC Three-Conductor Flat Portable Power Cables with One Grounding Conductor and One Ground-Check Conductor ..................................................... 38

3-15

2,000 Volts or Less Type W Four-Conductor Flat Portable Power Cables............................. 39

3-16

2,000 Volts or Less Type W And G, Five- and Six-Conductor Round Portable Power Cables39

3-17

2,000 Volts or Less Type PG Two- and Three-Conductor Round Portable Power Cables .... 39

3-18

2,000 Volts or Less Type PCG Two- and Three-Conductor Round Portable Power Cables . 40 © Copyright 2008 by the National Electrical Manufacturers Association and the Insulated Cable Engineers Association

ANSI/NEMA WC 58-2008 ICEA S-75-381-2008 Page v 3-19

2,001 To 5,000 Volts Type G Three-Conductor Round Portable Power Cables ....................40

3-20

Type SH Single-Conductor Portable Power Cables for 100 Percent Insulation Level Only ... 41

3-21

2,000 Volts or Less Type SHC-GC Three-Conductor Round Portable Power Cables for 100 Percent Insulation Level Only.................................................................................................. 42

3-22

Type SHD And SHD-GC Three-Conductor Round Portable Power Cables for 100 Percent Insulation Level Only ............................................................................................................... 43

3-23

Type SHD-CGC Three-Conductor Portable Power Cables with Three Grounding Conductors and One Ground-Check Conductor ..................................................................... 45

3-24

Jacket Thicknesses for Types fnd Sizes of Round Portable Cables not Covered by Tables 3-6 through 3-23 and 3-26 .......................................................................................... 46

3-25

Conductors .............................................................................................................................. 47

3-26

Type SHD-PCG Cable............................................................................................................. 48

3-27

2,000 Volts or Less Type SHD-Flat Three Conductor Portable Power Cable with Two Grounding Conductors ............................................................................................................ 48

Tables 4-1

Conductor Sizes ...................................................................................................................... 53

4-2

Insulation Thicknesses and Outside Diameters—2,001 to 5,000 Volts 100 and 133 Percent Insulation Levels...................................................................................................................... 53

4-3

Insulation Thicknesses and Outside Diameters 5,001 to 8,000 Volts..................................... 54

4-4

Insulation Thicknesses and Outside Diameters 8,001 to 15,000 Volts................................... 54

4-5

Insulation Thicknesses and Outside Diameters 15,001 to 25,000 Volts.................................55

4-6

Partial Discharge Extinction Voltage ....................................................................................... 55

4-7

Overall Jacket Thickness ........................................................................................................ 55

4-8

Nominal DC Resistance of Medium Hard-Drawn Coated and Uncoated Copper Conductors Concentric Stranded, Class B and C....................................................................................... 56

4-9

Thermoplastic Jacket Requirements ....................................................................................... 57

5-1

Heavy-Duty Jackets (Type A).................................................................................................. 60

5-2

Medium-Duty Jackets (Type B) ............................................................................................... 61

5-3

Construction Details ................................................................................................................ 62

6-1

Number of Samples................................................................................................................. 63

6-2

Number of Test Specimens ..................................................................................................... 65

H-1

Ampacities for Portable Power Cables, Amperes per Power Conductor................................ 83

I-1

Ampacities for Three-Conductor Mine Power Cables ............................................................. 84

J-1

DC Test Voltages after Installation, kV.................................................................................... 85

K-1

Concentric Stranded Class B Aluminum and Copper Conductors ......................................... 86

K-2

Concentric Stranded Class C and D Aluminum and Copper Conductors............................... 87

K-3

Rope-Lay Copper Conductors Class G................................................................................... 88

K-4

Rope-Lay Copper Conductors Class H................................................................................... 89

K-5

Copper Conductors Class I – Each Individual Strand 24 AWG, 0.0201 Inch (0.511 mm)...... 90

K-6

Copper Conductors Class K – Each Individual Strand 30 AWG, 0.0100 Inch (0.254 mm) .... 91

K-7

Copper Conductors Class M – Each Individual Strand 34 AWG, 0.0063 Inch (0.160 mm).... 92


ANSI/NEMA WC 58-2008 ICEA S-75-381-2008 Page vi

FOREWORD

This Standards Publication for Mining Cable was developed by the Insulated Cable Engineers Association, Incorporated (ICEA) and was approved by the National Electrical Manufacturers Association (NEMA). ICEA/NEMA Standards are adopted in the public interest and are designed to eliminate misunderstandings between the manufacturers and the user and to assist the user in selecting and obtaining the proper product for his or her particular need. Existence of an ICEA/NEMA standard does not in any respect preclude the manufacture or use of products not conforming to the standard. The user of this Standards Publication is cautioned to observe any health or safety regulations and rules relative to the use of cable made in conformity with this Standard. Requests for interpretation of this Standard must be submitted in writing to: Insulated Cable Engineers Association, Inc. P.O. 1568 Carrollton, GA 30112

An official interpretation will be made by the Association. Suggestions for improvement gained in the use of this publication will be welcomed by the Association.

Working Group Members: Barry L. Fisher David L. Fox (deceased) Mark A. Fuller L. Drayton Land Marcel Levitre Frank LeGase IN MEMORY The rewriting of this standard was initiated and diligently pursued by Mr. David Fox of AmerCable Inc. Through his efforts and countless hours invested, publishing of this work was made possible. We would like to both remember David and thank David’s family, wife Lis and daughter Stephanie, for the valuable contribution he made to our industry and in the development of this specification.


ANSI/NEMA WC 58-2008 ICEA S-75-381-2008 Page 1

Section 1 GENERAL 1.1

SCOPE

These standards apply to materials, construction, and testing of insulated cables used for the utilization of electrical energy in surface and underground mines and similar applications. Included are portable cables for use in mining machines, dredges, shovels and similar equipment, and mine power cables for use as connections between units of mine distribution systems. The cables are of the following types: PORTABL E CABL ES 2,000 VOLTS OR L ESS Type Type Type Type Type Type Type Type Type

W without grounding conductors G with grounding conductors G-GC with grounding conductors and one ground-check conductor G-CGC with grounding conductors and one ground-check conductor in center PG with single grounding conductor PCG with single grounding conductor and two control conductors SHC-GC multiconductor with grounding conductors, one ground check conductor and overall shield SHD-PCG multiconductor with individually shielded power conductors, center grounding conductor, and one or more control conductors. SHD Flat multiconductor with individually shielded power conductors, and grounding conductors covered with a conducting extrusion layer.

PORTABLE CABLES 2,001–5,000 VOLTS (100% INSULATION LEVEL) Type Type

G with grounding conductors SHD-PCG multiconductor with individually shielded power conductors, center grounding conductor, and one or more control conductors.

PORTABLE CABLES 0–25,000 VOLTS (100% INSULATION LEVEL) Type Type Type Type

SH shielded single conductor SHD with individually shielded power conductors and grounding conductors SHD-GC with individually shielded power conductors, grounding conductors, and one ground-check conductor SHD-CGC with individually shielded power conductors, grounding conductors, and one ground-check conductor in center

MINE POWER 2,001–25,000 VOLTS (100% AND 133% INSULATION LEVEL) Type Type

MP with individually shielded power conductors and grounding conductors MP-GC with individually shielded power conductors, grounding conductor, and one ground-check conductor


ANSI/NEMA WC 58-2008 ICEA S-75-381-2008 Page 2 1.2

GENERAL INFORMATION

The information in this publication is divided into six sections including two supplements. Sections 3 and 4 cover portable and mine power cables, respectively, with either crosslinked polyethylene or ethylene propylene rubber insulations for phase conductors, plus ground-check conductor insulations. Section 5 covers portable arc welding cables. Section 6 covers test methods. In this standard, temperatures are expressed in degrees Celsius, masses in grams, liquid volumes in cubic centimeters, and metal resistivities in nanoohm·meter. Other properties are expressed in non-metric units used in the U.S.A. o

Room temperature is defined as 23 ± 5 C. Where this temperature cannot be maintained, test measurements may be made at the prevailing ambient room temperature, which shall be recorded. Conductor size is expressed by cross-sectional area in thousand circular mils (kcmil). For convenience, in the text and several tables, only the equivalent AWG size is used for 211.6 kcmil (4/0 AWG) and smaller conductors. For the kcmil values of AWG sizes, see Section 2. To convert values in a non-metric unit to the approximate value in an appropriate metric unit, multiply the value in the non-metric unit by the appropriate number from the following as listed below: From: feet (ft) inches (in) 2 square inches (in ) thousand circular mils (kcmil) ounces avoirdupois (oz av) pounds per 1,000 ft (lb/1,000 ft) pounds per square inch (psi) pounds tension or force per inch (lb/in) ohms per 1,000 feet ( Ω/1,000 ft) kilovolts per inch (kV/in) or (volts per mil or V/mil) megohms – 1,000 feet (M Ω-1,000 ft) gigaohms – 1,000 feet (G Ω-1,000 ft) ounce ounce, fluid

To: meters (m) millimeters (mm) 2 square millimeters (mm ) 2 square millimeters (mm ) grams (gm) kilogram per km (kg/km) 1.49 kilopascals (kPa) newtons per meter (N/m) milliohms per meter (m Ω/m) megavolts per meter (MV/m) or kilovolts per millimeter (kV/mm) megohms-meter (M Ω-m) gigaohms-meter (G Ω-m) gram cubic-centimeter

Multiplier: 0.305 25.4 645 0.507 28.4 6.89 175 3.28 0.0394 305 305 28.35 29.57

To convert values in a non-metric unit to the approximate value in an appropriate metric unit, use the following formulae: ohm-circular mil/foot Fahrenheit 1.3

nanoohm·meter Celsius

X / 0.602 o (1.8 x C) + 32

INFORMATION TO BE SUPPLIED BY USER

When requesting proposals from cable manufacturers, the prospective user should describe the cable in reference to pertinent sections of these standards. To help avoid misunderstanding and possible misapplication of cable, he should also provide pertinent information concerning the intended application.



Section 2 CONDUCTORS Conductors shall meet the requirements of the appropriate ASTM standards referenced in this standard except as noted in 2.1. 2.1

PHYSICAL AND ELECTRICAL PROPERTIES

The conductors used in the cable shall be stranded and shall be copper in accordance with 2.1.1, aluminum in accordance with 2.1.2, or flexible conductors in accordance with 2.1.3, as applicable except cross-sectional area compliance shall be determined by resistance as noted in 2.3. Diameters shall be in accordance with 2.4. The outer layer of an uncoated stranded copper conductor may be tin coated to obtain free stripping of an adjacent polymeric layer. 2.1.1

Copper Condu ctor s

ASTM B 3 for Soft or Annealed Uncoated Copper. ASTM B 5 for Electrical Grade Copper. ASTM B 8 for Class B, C, or D Stranded Copper Conductors. ASTM B 33 for Soft or Annealed Tin-Coated Copper Wire. ASTM B 193 Test for Resistivity of Electrical Conductor Materials ASTM B 496 for Compact-Round Stranded Copper Conductors. ASTM B 784 for Modified Concentric Lay Stranded Copper Conductor. ASTM B 785 for Compact Round Modified Concentric Lay Stranded Copper Conductor. ASTM B 787 for 19 Wire Combination Unilay-Stranded Copper Conductors. ASTM B 835 for Compact Round Stranded Copper Conductors Using Single Input Wire Constructions. 2.1.2

Aluminum Conductors

ASTM B 230 for Electrical Grade Aluminum 1350-H19 ASTM B 231 for Class B, C, or D Stranded Aluminum 1350 Conductors. ASTM B 233 for Electrical Grade Aluminum 1350 Drawing Stock ASTM B 400 for Compact-Round Stranded Aluminum 1350 Conductors ASTM B 609 for Electrical Grade Aluminum 1350 Annealed and Intermediate Tempers ASTM B 786 for 19 Wire Combination Unilay-Stranded Aluminum 1350 Conductors. ASTM B 800 for 8000 Series Aluminum Alloy Annealed and Intermediate Tempers. ASTM B 801 for 8000 Series Aluminum Alloy Wires, Compact-Round, Compressed And Concentric-Lay Class B, C and D Stranded Conductors. ASTM B 836 for Compact Round Stranded Aluminum Conductors Using Single Input Wire Constructions 2.1.3

Flexible Condu cto rs

ASTM B 172 for Rope-Lay-Stranded Copper Conductors Having Bunch-Stranded Members for Electrical Conductors ASTM B 173 for Rope-Lay-Stranded Copper Conductors Having Concentric-Stranded Members for Electrical Conductors ASTM B 174 for Bunch-Stranded Copper Conductors for Electrical Conductors 2.2

CONDUCTOR SIZE UNITS

Conductor size shall be expressed by cross-sectional area in thousand circular mils (kcmil). The AWG equivalents for small sizes shall be found in Table 2-5. The metric equivalents for all sizes are found in Table 2-5 (Metric).



2.3

CONDUCTOR DC RESISTANCE PER UNIT LENGTH

The DC resistance per unit length of each conductor in a production or shipping length of completed cable shall not exceed the value determined from the schedule of maximum DC resistances specified in Table 2-2 when using the appropriate nominal value specified in Table 2-3 and Table 2-4. The DC resistance shall be determined in accordance with 2.3.1 or 2.3.2. Where the outer layer of an uncoated stranded copper conductor is tin coated, the DC resistance of the resulting conductor shall not exceed the value specified for an uncoated conductor of the same size. When a sample is taken from a multiple conductor cable, the resistance shall comply with the appropriate maximum resistance value specified for a single conductor cable. 2.3.1

Direct Measur ement of DC Resistance Per Unit Lengt h

The DC resistance per unit length shall be determined by DC resistance measurements made in accordance with ICEA T-27-581/NEMA WC-53 to an accuracy of plus or minus 0.15% percent. If measurements are made at a temperature other than 25 °C, the measured value shall be converted to resistance at 25 °C by using either; (1) the appropriate multiplying factor obtained from ICEA T-27581/NEMA WC-53 or (2) a multiplying factor calculated using the applicable formula in ICEA T-27581/NEMA WC-53. If verification is required for the dc resistance measurement made on an entire length of completed cable, a sample at least 1 foot (0.305 m) long shall be cut from that reel length, and the direct-current resistance of each conductor shall be measured using a Kelvin-type bridge or a potentiometer. Where an uninsulated conductor is in contact with another metallic or conductive component of the cable, measurements shall be made on a sample taken from the completed cable. 2.3.2

Calculatio n of DC Resistance Per Unit Lengt h

The DC resistance per unit length at 25 °C shall be calculated using the following formula: ρ

R = K A Where:

R =Conductor resistance in Ω/1,000 ft.* K =Weight increment factor, as given in Table 2-1 or calculated per applicable ASTM standard. ρ =Volume resistivity in Ω⋅kcmil/ft., determined in accordance with ASTM B 193 using round wires A =Cross-sectional area of conductor in kcmil, determined in accordance with ICEA T-27-581/ NEMA WC-53. *When the volume resistivity is expressed in nanoohm·meter (n Ω⋅m) and area is expressed in square 2 millimeters (mm ) the resistance is expressed in milliohms per meter (m Ω/m). 2.4

CONDUCTOR DIAMETER

The conductor diameter shall be measured in accordance with 6.3.3. The diameters shall not differ from the nominal values shown in Table 2-5 by more than ± 2 percent. See the Appendices for diameter information on flexible conductors.



Table 2-1 Weight Increment Factors, K * Condu cto r Type/Size Concentric-lay Strand, Class B, C and D 14 AWG - 1,000 kcmil Combination Unilay Strand All Sizes Concentric-lay Strand 8000 Series Aluminum All Sizes Bunch Strand, Single Bunches All Sizes Rope-lay Strand Having Concentric Stranded Members Classes G and H 49 wires 133 wires 259 wires 427 wires Over 427 wires Rope-lay Strand Having Bunch Stranded Members Classes I, K and M 7 Bunch Stranded Members 19 Bunch Stranded Members 37 Bunch Stranded Members 61 Bunch Stranded Members 7 x 7 Bunch Stranded Members 19 x 7 Bunch Stranded Members 37 x 7 Bunch Stranded Members 61 x 7 Bunch Stranded Members

Weight Factor (K) 1.02 1.02 1.02 1.02

1.03 1.04 1.045 1.05 1.06

1.04 1.05 1.05 1.05 1.06 1.07 1.07 1.07

*

Based on the method specified in either ASTM B 8, ASTM B 172, ASTM B 173, ASTM B 174, ASTM B 231, ASTM B 496, ASTM B 400, ASTM B 786, ASTM B 787, or ASTM B 801 as applicable.



Table 2-2 Schedule for Establishing Maximum Maximum DC Resistance Resistance Per Unit Length of Completed Cable Conductors listed in Table 2-3 and 2-4 Cable Type Conductors Listed in Table Table 2-3 Single Conductor Cables

Maximum DC Resistance a

Table 2-3 Value Plus 2% (R max = R x 1.02) a Table 2-3 Value Plus 2% Plus One of the following:

Multiple Conductor Cables and Twisted Assemblies of Single Conductor Cables

2% - One Layer of Conductors (R max = R x 1.02 x 1.02) 3% - More than One Layer of Conductors (R max = R x 1.02 x 1.03) 4% - Pairs or Other Pre-cable Units (R max = R x 1.02 x 1.04)

Conductors Listed in Table Table 2-4 Single Conductor Cables And Flat Parallel Cables Multiple Conductor Cables and Twisted Assemblies of Single Conductor Cables

a

Table 2-4 Value Plus 2% (R max = R x 1.02) a Table 2-4 Value Plus 2% Plus 5% (R max = R x 1.02 x 1.05)

a

For conductor stranding stranding or sizes not listed in Tables 2-3 and 2-4, the nominal DC resistance per unit length of a completed single conductor cable shall be calculated using the following formula:

R =

f A

× 10

−3

Where: R = Conductor resistance in Ω/1,000 ft. f = = Factor from Table 2-6 in Ω⋅kcmil/1,000 ft. A = Nominal cross-sectional area of conductor in kcmil


ANSI/NEMA WC 58-2008 ICEA S-75-381-2008 Page 7 Table 2-3 Nominal DC Resis Resis tance in Ohms Per 1,00 1,000 0 Feet Feet at 25 C of Concentric Lay Stranded Conduc Conduc tors Conductor Size

Concentric Lay Stranded Alu min um

*

*

Copp er

AWG or k cmi l

Class B,C,D

Uncoated Class B,C,D

10 9 8 7 6 5 4 3 2 1 1/0 2/0 3/0 4/0 250 300 350 400 450 500

1.70 1.35 1.07 0.851 0.675 0.534 0.424 0.336 0.266 0.211 0.168 0.133 0.105 0.0836 0.0707 0.0590 0.0505 0.0442 0.0393 0.0354

1.04 0.825 0.652 0.519 0.411 0.325 0.258 0.205 0.162 0.129 0.102 0.0810 0.0642 0.0510 0.0431 0.0360 0.0308 0.0269 0.0240 0.0216

Class B

Coated Class C

Class D

1.08 0.856 0.678 0.538 0.427 0.338 0.269 0.213 0.169 0.134 0.106 0.0842 0.0667 0.0524 0.0448 0.0374 0.0320 0.0277 0.0246 0.0222

1.08 0.856 0.678 0.538 0.427 0.338 0.269 0.213 0.169 0.134 0.106 0.0842 0.0669 0.0530 0.0448 0.0374 0.0320 0.0280 0.0249 0.0224

1.11 0.874 0.680 0.538 0.427 0.339 0.269 0.213 0.169 0.134 0.106 0.0842 0.0669 0.0530 0.0448 0.0374 0.0320 0.0280 0.0249 0.0224

Concentric lay stranded includes compressed and compact conductors.

Table 2-3 (Metric) Nominal DC Resistance in Millioh ms Per Meter at 25 C of Concentric Lay Stranded Conduc Conduc tors Conductor Size Alu min um AWG or k cmi l 10 9 8 7 6 5 4 3 2 1 1/0 2/0 3/0 4/0 250 300 350 400 450 500

mm² 5.26 6.63 8.37 10.6 13.3 16.8 21.1 26.7 33.6 42.4 53.5 67.4 85.0 107 127 152 177 203 228 253

Class A,B,C,D 5.57 4.42 3.51 2.79 2.21 1.75 1.39 1.10 0.872 0.692 0.551 0.436 0.344 0.274 0.232 0.194 0.166 0.145 0.129 0.116

Concentric Lay Stranded * Copp er Uncoated Coated Clas s B,C,D Class B Clas s C 3.41 3.54 3.54 2.70 2.80 2.80 2.14 2.22 2.22 1.70 1.76 1.76 1.35 1.40 1.40 1.07 1.11 1.11 0.846 0.882 0.882 0.672 0.699 0.699 0.531 0.554 0.554 0.423 0.440 0.440 0.335 0.348 0.348 0.266 0.276 0.276 0.211 0.219 0.219 0.167 0.172 0.172 0.141 0.147 0.147 0.118 0.123 0.123 0.101 0.105 0.105 0.0882 0.0909 0.0918 0.0787 0.0807 0.0817 0.0708 0.0728 0.0735

*

Concentric lay stranded includes compressed and compact conductors.


Class D 3.64 2.86 2.23 1.76 1.40 1.11 0.882 0.699 0.554 0.440 0.348 0.276 0.219 0.172 0.147 0.123 0.105 0.0918 0.0817 0.0735

ANSI/NEMA WC 58-2008 ICEA S-75-381-2008 Page 8 Table 2-4 Nominal DC Resis Resis tance in Ohms Per 1,00 1,000 0 Feet Feet at 25 C For Flexible Annealed Annealed Copper Condu ctors Conductor Size AWG or k cmi l 12 10 8 7 6 5 4 3 2 1 1/0 2/0 3/0 4/0 250 300 350 400 450 500 550 600 650 700 750 800 900 1,000

Uncoated Class G 1.67 1.05 0.660 0.523 0.415 0.329 0.261 0.207 0.164 0.131 0.104 0.0826 0.0655 0.0520 0.0442 0.0368 0.0316 0.0276 0.0246 0.0221 0.0202 0.0185 0.0171 0.0159 0.0148 0.0139 0.0123 0.0111

Class H … … 0.666 0.528 0.419 0.332 0.263 0.209 0.166 0.132 0.105 0.0830 0.0659 0.0522 0.0444 0.0370 0.0317 0.0278 0.0247 0.0222 0.0204 0.0187 0.0172 0.0168 0.0149 0.0140 0.0125 0.0112

Class I … 1.04 0.653 0.518 0.419 0.332 0.263 0.209 0.166 0.131 0.105 0.0834 0.0662 0.0525 0.0448 0.0374 0.0320 0.0280 0.0249 0.0224 0.0204 0.0187 0.0174 0.0162 0.0151 0.0141 0.0126 0.0113

Coated Class K 1.65 1.04 0.666 0.528 0.419 0.332 0.263 0.211 0.167 0.133 0.105 0.0842 0.0668 0.0530 0.0448 0.0374 0.0323 0.0283 0.0251 0.0226 0.0206 0.0189 0.0174 0.0162 0.0151 0.0141 0.0126 0.0113

Class M 1.68 1.06 0.666 0.533 0.423 0.336 0.266 0.213 0.169 0.134 0.106 0.0850 0.0674 0.0535 0.0453 0.0377 0.0323 0.0283 0.0251 0.0226 0.0206 0.0189 0.0174 0.0162 0.0151 0.0141 0.0126 0.0113

Class G 1.77 1.11 0.701 0.544 0.432 0.342 0.271 0.215 0.171 0.137 0.108 0.0859 0.0682 0.0541 0.0460 0.0383 0.0328 0.0287 0.0255 0.0230 0.0210 0.0192 0.0178 0.0165 0.0154 0.0144 0.0128 0.0115

Class H … … 0.708 0.561 0.445 0.353 0.280 0.222 0.172 0.140 0.109 0.0863 0.0685 0.0543 0.0462 0.0385 0.0330 0.0289 0.0257 0.0231 0.0212 0.0194 0.0179 0.0167 0.0155 0.0146 0.0130 0.0117

Clas s I … 1.08 0.679 0.539 0.436 0.346 0.274 0.217 0.172 0.137 0.109 0.0868 0.0688 0.0546 0.0466 0.0389 0.0333 0.0291 0.0259 0.0233 0.0212 0.0194 0.0181 0.0168 0.0157 0.0147 0.0131 0.0118


Class K 1.77 1.12 0.715 0.567 0.450 0.357 0.283 0.222 0.172 0.140 0.113 0.0904 0.0717 0.0569 0.0481 0.0401 0.0347 0.0304 0.0270 0.0243 0.0221 0.0203 0.0187 0.0174 0.0162 0.0152 0.0135 0.0122

Clas s M 1.81 1.14 0.715 0.573 0.454 0.360 0.286 0.227 0.181 0.144 0.114 0.0913 0.0724 0.0574 0.0486 0.0405 0.0347 0.0304 0.0262 0.0243 0.0221 0.0202 0.0187 0.0174 0.0162 0.0152 0.0135 0.0121

ANSI/NEMA WC 58-2008 ICEA S-75-381-2008 Page 9 Table 2-4 (Metric) Nominal DC Resistance in Milli ohm s Per Meter at 25 for Flexible Annealed Copper Conductors Conductor Size AWG or mm² kcmil 12 10 8 7 6 5 4 3 2 1 1/0 2/0 3/0 4/0 250 300 350 400 450 500 550 600 650 700 750 800 900 1,000

3.31 5.26 8.37 10.6 13.3 16.8 21.1 26.7 33.6 42.4 53.5 67.4 85.0 107 127 152 177 203 228 253 279 304 329 355 380 405 456 507

Uncoated

C

Coated

Class G

Class H

Class I

Class K

Class M

Class G

Class H

Class I

Class K

Class M

5.48 3.44 2.17 1.72 1.36 1.08 0.856 0.679 0.538 0.430 0.341 0.271 0.215 0.171 0.145 0.121 0.104 0.0906 0.0807 0.0725 0.0663 0.0607 0.0561 0.0522 0.0486 0.0456 0.0404 0.0364

… … 2.19 1.73 1.37 1.09 0.863 0.686 0.545 0.433 0.344 0.272 0.216 0.171 0.146 0.121 0.104 0.0912 0.0810 0.0728 0.0669 0.0614 0.0564 0.0551 0.0489 0.0459 0.0410 0.0367

… 3.41 2.14 1.70 1.37 1.09 0.863 0.686 0.545 0.430 0.344 0.274 0.217 0.172 0.147 0.123 0.105 0.0919 0.0817 0.0735 0.0669 0.0614 0.0571 0.0531 0.0495 0.0463 0.0413 0.0371

5.41 3.41 2.19 1.73 1.37 1.09 0.863 0.692 0.548 0.436 0.344 0.276 0.219 0.174 0.147 0.123 0.106 0.0928 0.0823 0.0741 0.0676 0.0620 0.0571 0.0531 0.0495 0.0463 0.0413 0.0371

5.51 3.48 2.19 1.75 1.39 1.10 0.873 0.699 0.554 0.440 0.348 0.279 0.221 0.176 0.149 0.124 0.106 0.0928 0.0823 0.0741 0.0676 0.0620 0.0571 0.0531 0.0495 0.0463 0.0413 0.0371

5.81 3.64 2.30 1.78 1.42 1.12 0.889 0.705 0.561 0.449 0.354 0.282 0.224 0.177 0.151 0.126 0.105 0.0942 0.0837 0.0755 0.0689 0.0630 0.0584 0.0541 0.0505 0.0472 0.0420 0.0377

… … 2.32 1.84 1.46 1.16 0.919 0.728 0.564 0.459 0.358 0.283 0.225 0.178 0.152 0.126 0.108 0.0948 0.0843 0.0758 0.0696 0.0636 0.0587 0.0548 0.0509 0.0479 0.0427 0.0384

… 3.54 2.23 1.77 1.43 1.14 0.899 0.712 0.564 0.449 0.358 0.285 0.226 0.179 0.153 0.128 0.109 0.0955 0.0850 0.0764 0.0696 0.0636 0.0594 0.0551 0.0515 0.0482 0.0430 0.0387

5.81 3.67 2.35 1.86 1.48 1.17 0.928 0.728 0.564 0.459 0.371 0.297 0.235 0.187 0.158 0.132 0.114 0.0997 0.0886 0.0797 0.0725 0.0666 0.0614 0.0571 0.0531 0.0499 0.0443 0.0400

5.94 3.74 2.35 1.88 1.49 1.18 0.938 0.745 0.594 0.472 0.374 0.300 0.238 0.188 0.159 0.133 0.114 0.0997 0.0860 0.0797 0.0725 0.0663 0.0614 0.0571 0.0531 0.0499 0.0443 0.0400


ANSI/NEMA WC 58-2008 ICEA S-75-381-2008 Page 10 Table 2-5 Nominal Diameters for Copper and Alumi num Conducto rs Conductor Size

AWG 10 9 8 7 6 5 4 3 2 1 1/0 2/0 3/0 4/0

kcm il 10.38 13.09 16.51 20.82 26.24 33.09 41.74 52.62 66.36 83.69 105.6 133.1 167.8 211.6 250 300 350 400 450 500

Nominal Diameter (Inch) Concentric Lay Stranded Comp ress ed 0.113 0.126 0.142 0.159 0.178 0.200 0.225 0.252 0.283 0.322 0.362 0.405 0.456 0.512 0.558 0.611 0.661 0.706 0.749 0.789

Comp act ... ... 0.134 … 0.169 ... 0.213 0.238 0.268 0.299 0.336 0.376 0.423 0.475 0.520 0.570 0.616 0.759 0.700 0.736

Clas s B* 0.116 0.130 0.146 0.164 0.184 0.206 0.232 0.260 0.292 0.332 0.373 0.419 0.470 0.528 0.575 0.630 0.681 0.728 0.772 0.813

Class C 0.117 0.131 0.148 0.166 0.186 0.208 0.234 0.263 0.296 0.333 0.374 0.420 0.471 0.529 0.576 0.631 0.681 0.729 0.773 0.814

Class D 0.117 0.132 0.148 0.166 0.186 0.208 0.235 0.264 0.297 0.333 0.374 0.420 0.472 0.530 0.576 0.631 0.682 0.729 0.773 0.815

Combination Unilay 0.113 0.127 0.143 0.160 0.179 0.202 0.226 0.254 0.286 0.321 0.360 0.404 0.454 0.510 0.554 0.607 0.656 0.701 0.744 0.784

Unilay Compressed ... ... ... ... ... ... ... ... ... 0.313 0.352 0.395 0.443 0.498 0.542 0.594 0.641 0.685 0.727 0.766

* Diameters shown are for concentric round and modified concentric.

Table 2-5 (Metric) Nominal Diameters for Copper and Alumi num Conducto rs Conductor Size AWG or 2 kcmil mm 10 9 8 7 6 5 4 3 2 1 1/0 2/0 3/0 4/0 250 300 350 400 450 500

5.26 6.63 8.37 10.6 13.3 16.8 21.1 26.7 33.6 42.4 53.5 67.4 85.0 107 127 152 177 203 228 253

Compressed 2.84 3.20 3.58 4.01 4.52 5.08 5.72 6.40 7.19 8.18 9.19 10.3 11.6 13.0 14.2 15.5 16.8 17.9 19.0 20.0

Compact ... ... 3.40 ... 4.29 ... 5.41 6.04 6.81 7.59 8.53 9.55 10.74 12.06 13.21 14.48 15.65 19.28 17.78 18.69

Nominal Diameter (mm) Conc entr ic L ay Stran ded Class Class Class Combination B* C D Unilay 2.95 3.30 3.71 4.17 4.67 5.23 5.89 6.60 7.42 8.43 9.47 10.6 11.9 13.4 14.6 16.0 17.3 18.5 19.6 20.7

2.97 3.33 3.76 4.22 4.72 5.28 5.94 6.68 7.52 8.46 9.50 10.7 12.0 13.4 14.6 16.0 17.3 18.5 19.6 20.7

2.97 3.35 3.76 4.22 4.72 5.31 5.97 6.71 7.54 8.46 9.50 10.7 12.0 13.5 14.6 16.0 17.3 18.5 19.6 20.7

Unilay Compressed

2.87 3.23 3.63 4.06 4.55 5.13 5.74 6.45 7.26 8.15 9.14 10.3 11.5 13.0 14.1 15.4 16.7 17.8 18.9 19.9

* Diameters shown are for concentric round and modified concentric.


... ... ... ... ... ... ... ... ... 7.95 8.94 10.0 11.3 12.6 13.8 15.1 16.3 17.4 18.5 19.5

ANSI/NEMA WC 58-2008 ICEA S-75-381-2008 Page 11 Table 2-6* Factors for Determin ing Nomin al Resist ance of Strand ed Cond uct ors Per 1,000 Feet at 25 C †

Conductor Size

All Sizes Alu min um Unco ated Copper

Diameter of Individu al Tin Coated Copper Wires in Inches for Stranded Conductors 0.460 Under 0.290 Under 0.103 Under 0.0201 Under 0.0111 to 0.290, to 0.103, to 0.0201, to 0.0111, to 0.0010, Inclusive Inclusive Inclusive Inclusive Inclusive Rope-Stranded

49 Strands 133 Strands 259 Strands 427 Strands Over 427 Strands

17,865 18,038 18,125 18,212 18,385

10,892 10,993 11,051 11,104 11,209

11,153 11,261 11,315 11,370 11,478

11,210 11,319 11,374 11,428 11,537

11,327 11,437 11,492 11,547 11,657

11,568 11,681 11,737 11,793 11,905

----------------

----

11,217

11,456

11,579

Bunch Stranded All Sizes

17,691

10,786

----

Rope-Stranded Bun ches 7 Ropes of Bunched Strand 19, 37, or 61 Ropes of Bunched Strand 7 x 7 Ropes of Bunched Strand 19, 37, or 61 x 7 Ropes of Bunched Strand

18,038

10,998

----

----

11,437

11,681

11,806

18,212

11,104

----

----

11,547

11,793

11,920

18,385

11,209

----

----

11,657

11,905

12,033

18,559

11,315

----

----

11,767

12,018

12,147

11,102

11,217

11,456

11,580

Concentric Stranded 14 AWG - 1,000 kcmil

17,692

10,786

11,045

*The factors given in Table 2-6 shall be based on the following: A. Resistivity 1. A volume resistivity of 10.575 Ω ·kcmil/ft (100% IACS) at 25°C for uncoated (bare) copper. 2. A 25°C volume resistivity converted from the 20°C values specified in AS TM B 33 for tin coated copper. 3. A volume resistivity of 17.345 Ω ·kcmil/ft (61% IACS) at 25°C for aluminum. B. Increase in Resistance Due to Stranding 1. The value of K (weight increment factor) given in Table 2-1. †

See Table 2-2 for Use of Factors.



Section 3 PORTABLE SINGLE AND MULTIPLE CONDUCTOR POWER CABLE 3.1

SCOPE

This section covers crosslinked polyethylene and ethylene-propylene-rubber insulated cables with copper conductors for portable use in sizes 8 AWG and larger for use in mining machines, dredges, shovels, and in similar applications. These cables are distinguished by the requirements for the jackets given in 3.21 and Tables 3-3 and 3-4. Details of construction and dimensions for the voltages at which these cables may be used are given in Table 3-5 through 3-23, 3-25, and 3-26. Recommended ampacities and voltage ratings are given in Annex H. Recommended bending radii are given in Annex F and G. Consult the manufacturer for minimum bending radius for re-reeling applications. o

o

The insulations are suitable for conductor temperatures not exceeding 90 C (194 F) for normal operation, o o o o 130 C (266 F) for emergency overload conditions and 250 C (482 F) for short-circuit conditions. (See Annex B and C.) 3.2

DC SYSTEMS

DC systems up to and including 2,000 volts shall be considered the same as single-phase AC systems. For systems over 2,000 volts, consult the manufacturer. 3.3

SINGLE-CONDUCTOR CABLES, NONSHIELDED, 2,000 VOLTS OR LESS

These cables shall consist of an insulated conductor with a jacket that meets the requirements for 3.21 and shall be in accordance with Table 3-6. Normal-service cables shall have a heavy-duty jacket and hard-service cables shall have an extra heavy-duty jacket. 3.4

TYPE W AND G TWO-CONDUCTOR CABLES, 2,000 VOLTS OR LESS

These cables shall be one of two types: (1) flat twin or (2) two conductor round. 3.4.1

Two-Condu cto r Flat Twin Cables

3.4.1.1

Type W, wit hou t Ground ing Condu cto r

These cables shall consist of two conductors that are separately covered with insulation meeting the requirements of 3.15, and they may have an additional covering (see 3.17). The insulated conductors are then laid parallel under a jacket that meets the requirements of 3.21. A web of the jacket or other material may separate the insulated conductors. If the protective covering on the individual conductors is omitted, a reinforcement shall be applied over the parallel conductors (see 3.21.2). The cables shall be in accordance with Table 3-7. 3.4.1.2

Type G, wit h Groun din g Condu ctor

These cables shall consist of two power condu ctors that are separately covered with insulation meeting the requirements of 3.15 and may have an additional covering (see 3.17). The two power conductors shall then be laid parallel with a single grounding conductor (see 3.13) between them under a jacket that meets the requirements of 3.21. If the protective covering on the power conductors is omitted, a reinforcement shall be applied either over the parallel conductors and grounding conductor or within the jacket (see 3.21.2). The cables shall be in accordance with Table 3-7. © Copyright 2008 by the National Electrical Manufacturers Association and the Insulated Cable Engineers Association


3.4.2

Two-Condu cto r Round Cables

3.4.2.1

Type W, witho ut Grounding Conductor

These cables shall consist of two conductors that are separately covered with insulation meeting the requirements of 3.15 and each conductor may have an additional covering (see 3.17). The power conductors, together with any necessary fillers, shall be cabled with a left-hand lay in accordance with Table 3-5 and covered with a jacket which meets the requirements of 3.21. The cables shall be in accordance with Table 3-8. 3.4.2.2

Type G, wit h Groun din g Condu ctor s

These cables shall consist of two power conductors that are separately covered with insulation meeting the requirements of 3.15 and each conductor may have an additional covering (see 3.17). The power conductors, together with two grounding conductors (see 3.13) and any necessary fillers, shall be cabled with a left-hand lay in accordance with Table 3-5 and covered with a jacket that meets the requirements of 3.21. The cables shall be in accordance with Table 3-8. 3.5

TYPE W, G, G-GC AND G-CGC. THREE-AND FOUR-CONDUCTOR CABLES, 2,000 VOLTS OR LESS

Three-conductor cables shall be one of six types: (1) Type W, round construction, without grounding conductors; (2) Type G, round construction, with grounding conductors; (3) Type G, flat construction, with grounding conductors; (4) Type G-GC, round construction, with grounding conductors and a groundcheck conductor; (5) Type G-GC, flat construction, with grounding conductor and a ground-check conductor; and (6) Type G-CGC, round construction, with grounding conductors and a center groundcheck conductor. Four-conductor cables shall be one of three types: (1) Type W, round construction, without grounding conductors; (2) Type G, round construction, with grounding conductors; and (3) Type W, flat construction without grounding conductors. 3.5.1

Three- and Four-Conduct or, Round Type W Cables witho ut Grounding Conduc tors

These cables shall consist of three or four power conductors that are separately covered with insulation meeting the requirements of 3.15 and may have an additional covering (see 3.17). The conductors, together with any necessary fillers, shall be cabled with a left-hand lay in accordance with Table 3-5 and covered with a jacket that meets the requirements of 3.21. Three-conductor cables shall be in accordance with Table 3-9 and four-conductor cables shall be in accordance with Table 3-10. 3.5.2

Three- and Four-Conduct or Round Type G Cables with Grounding Conductors

These cables shall consist of three or four power conductors that are separately covered with insulation meeting the requirements of 3.15 and may have an additional covering (see 3.17). The power conductors, together with an equal number of grounding conductors (see 3.13) and any necessary fillers, shall be cabled with a left hand lay in accordance with Table 3-5 with one ground wire placed in each interstice. The assembly shall be covered with a jacket that meets the requirements of 3.21. Threeconductor cables shall be in accordance with Table 3-9 and four-conductor cables shall be in accordance with Table 3-10. 3.5.3

Three-Cond uct or Flat Type G Cable wit h Ground ing Condu cto rs

These cables shall consist of three power conductors that are separately covered with insulation meeting the requirements of 3.15 and may have an additional covering (see 3.17). The three power conductors shall then be laid parallel with two grounding conductors (see 3.13) in a vertical position between them and under a jacket that meets the requirements of 3.21. If the protective covering on the individual power conductors is omitted, a reinforcement shall be applied over the parallel conductors and grounding conductors. The cables shall be in accordance with Table 3-11.


ANSI/NEMA WC 58-2008 ICEA S-75-381-2008 Page 14 3.5.4

Three-Cond uct or Flat G-GC Cable wit h Groun ding Condu cto r and Groun d-Check Conductor

These cables shall consist of three power conductors that are separately covered with insulation meeting the requirements of 3.15 and may have an additional covering (see 3.17). The three power conductors shall be laid parallel with the insulated ground-check conductor (see 3.12.3) in a vertical position between the black and white power conductors and with the grounding conductor (see 3.13) in a vertical position between the white and red conductors under a jacket that meets the requirements of 3.21. If the protective covering on the individual conductors is omitted, a reinforcement shall be applied over the parallel conductors, grounding conductor and ground-check conductor. The cables shall be in accordance with Table 3-14. 3.5.5

Three-Cond uct or Round Type G-GC and Type G-CGC Cable

3.5.5.1

Type G-GC, Three-Cond ucto r Round with Ground ing Cond uct ors and Groun d-Check Conductor

These cables shall consist of three power conductors that are separately covered with insulation meeting the requirements of 3.15, two grounding conductors (see 3.13) and one ground-check conductor (see 3.12.2). Each power and ground-check conductor may have an additional covering (see 3.17). All power, grounding and ground-check conductors and any necessary fillers shall be cabled with a left-hand lay in accordance with Table 3-5, and covered with a jacket that meets the requirements of 3.21. The groundcheck conductor shall be laid between the black and white power conductors. These cables shall be in accordance with Table 3-12. 3.5.5.2

Type G-CGC, Three-Cond uct or Roun d wit h Groun din g Condu cto rs and a Center Groun dCheck Conduc tor

These cables shall consist of three power conductors that are separately covered with insulation meeting the requirements of 3.15, three ground conductors (see 3.13) and one center ground-check conductor (see 3.12.2). Each power and one insulated ground-check conductor may have an additional covering (see 3.17). All power, grounding, and ground-check conductors and any necessary fillers shall be assembled with a left-hand lay in accordance with Table 3-5 and covered with a jacket that meets the requirements of 3.21. The ground-check conductor shall be laid in the center of the assembly with one grounding conductor in each of the outer three interstices. These cables shall be in accordance with Table 3-13. 3.5.6

Four-Conduct or Flat Type W Cable Without Grounding Conductors

These cables shall consist of four power conductors that are separately covered with insulation meeting the requirements of 3.15 and may have an additional covering (see 3.17). The four power conductors shall be laid parallel under a jacket that meets the requirements of 3.21. If the protective covering on the individual conductors is omitted, a reinforcement shall be applied over the parallel conductors. The cables shall be in accordance with Table 3-15. Conductor identification shall be in accordance with and in the sequence of 3.18. 3.6

TYPE W AND G, FIVE- AND SIX-CONDUCTOR, 2,000 VOLTS OR LESS

Five conductor cables shall be one of two types: (1) Type W, without grounding conductors and (2) Type G, with a grounding conductor. Six-conductor cables shall be Type W only. 3.6.1

Five- And Six-Conductor Round Type W Cables witho ut Grounding Conductor

These cables shall consist of five or six conductors that are separately covered with insulation meeting the requirements of 3.15 and may have an additional covering (see 3.17). The conductors, together with any necessary fillers, shall be cabled with a left-hand lay in accordance with Table 3-5 and covered with a jacket that meets the requirements of 3.21. The cables shall be in accordance with Table 3-16.



Five-Conduct or Round Type G Cables with Grounding Conductor

These cables shall consist of five power conductors that are separately covered with insulation meeting the requirements of 3.15 and may have an additional covering (see 3.17). The power conductors, together with any necessary fillers, shall be cabled with a left-hand lay in accordance with Table 3-5 around a single grounding conductor and covered with a jacket that meets the requirements of 3.21. These cables shall be in accordance with Table 3-16. 3.7

TYPE PG, TWO- AND THREE-CONDUCTORS WITH GROUNDING CONDUCTOR, 2,000 VOLTS OR LESS

These cables shall consist of two or three power conductors, which are separately covered with insulation meeting the requirements of 3.15 and may have an additional covering (see 3.17). The power conductors together with a single grounding conductor (see 3.13.6) and any necessary fillers, shall be cabled with a left-hand lay in accordance with Table 3-5. The grounding conductor shall be placed between the black and red conductors in the three conductor cable. The assembly shall be covered with a jacket that meets the requirements of 3.21. These cables shall be in accordance with Table 3-17. 3.8

TYPE PCG, TWO- AND THREE-CONDUCTORS WITH GROUNDING CONDUCTOR AND TWO CONTROL CONDUCTORS, 2,000 VOLTS OR LESS

These cables shall consist of two or three power conductors, one grounding conductor, and two control conductors (see 3.12.1). The power conductors and control conductors shall be separately covered with insulation meeting the requirements of 3.15 and may have an additional covering (see 3.17). The power conductors together with two control conductors and the grounding conductor shall be cabled with a lefthand lay in accordance with Table 3-5. The single grounding conductor in the three-conductor cable shall be placed between the black and red power conductors. Each control conductor shall be in a separate interstice. The black control conductor shall be between the black and white power conductors and the white control conductor shall be adjacent to the white power conductor. These cables shall be in accordance with Table 3-18. The assembly shall be covered with a jacket that meets the requirements of 3.21. 3.9

TYPE G, THREE-CONDUCTOR ROUND WITH GROUNDING CONDUCTORS 2,001-5,000 VOLTS

These cables shall consist of three power conductors that are separately covered with insulation meeting the requirements of 3.15. The power conductors, together with an equal number of grounding conductors (see 3.13) and any necessary fillers, shall be cabled with a left-hand lay in accordance with Table 3-5 with one grounding conductor placed in each interstice and covered with a jacket that meets the requirements of 3.21. The cables shall be in accordance with Table 3-19. 3.10

SHIELDED CABLE 25,000 VOLTS OR LESS

3.10.1

Shielded Cables 2,000 Volts or Less

3.10.1.1 Type SHD Flat Three-Condu cto r Cables, 2,000 Volts o r Less These cables shall consist of three power conductors, which are separately covered with insulation in accordance with 3.15, a tape or braid (see 3.17), and a shield, which meets the requirements of 3.19. The three power conductors shall then be laid parallel with one grounding conductor (see 3.13) in a vertical position between the black and white power conductors and one grounding conductor in a vertical position between the white and red power conductors. Reinforcement shall be applied under the jacket. The jacket shall meet the requirements of 3.21. The resistance of the metal shield over each phase conductor, when measured according to 6.26, shall not exceed 1.28 ohms per 1,000 feet at 25°C.


ANSI/NEMA WC 58-2008 ICEA S-75-381-2008 Page 16 These cables shall be in accordance with Table 3-27. 3.10.1.2 Type SHC-GC Round Thr ee-Condu ctor Cables, 2,000 Volts or L ess These cables shall consist of three power conductors that are separately covered with insulation meeting the requirements of 3.15 and may have an additional covering (see 3.17). The power conductors, together with two grounding conductors (see 3.13.1.1), one ground-check conductor (see 3.12.2), and any necessary fillers, shall be cabled with a left-hand lay in accordance with Table 3-5. The ground-check conductor shall be laid between the black and white power conductors. The assembly shall be covered with a shield that meets the requirements of 3.19. The overall shield shall maintain contact with the two grounding conductors. (Due to the nature of the design special care must be taken to ensure that the grounding conductors are in contact with the shield.) A nonconducting tape may be placed over the shield. A jacket that meets the requirements of 3.21 shall be placed over the completed assembly. These cables shall be in accordance with Table 3-21. 3.10.1.3 Type SHD Round Thr ee-Condu cto r Cables, 2,000 Volt s or Less These cables shall consist of three power conductors that are separately covered with insulation in accordance with 3.15, a tape (see 3.17) and a shield that meets the requirements of 3.19, and three grounding conductors (see Table 3-25), one in each interstice. All power and grounding conductors and any necessary fillers shall be cabled together with a left-hand lay in accordance with Table 3-5 and covered with a jacket that meets the requirements of 3.21. These cables shall be in accordance with Table 3-22. 3.10.1.4 Type SHD-GC Round Thr ee-Conduc tor Cables, 2,000 Volts or L ess These cables shall consist of three power conductors that are separately covered with insulation in accordance with 3.15, a tape (see 3.17), and a shield that meets the requirements of 3.19, and two grounding conductors (see Table 3-25) and one ground-check conductor (see 3.12.2). All power conductors, grounding conductors, the ground-check conductor and any necessary fillers shall be cabled with a left-hand lay in accordance with Table 3-5 and covered with a jacket that meets the requirements of 3.21. The ground-check conductor shall be laid between the black and white power conductors. These cables shall be in accordance with Table 3-22. 3.10.1.5 Type SHD-CGC Roun d Three-Cond uct or Cables, 2,000 Volt s or L ess These cables shall consist of three power conductors that are separately covered with insulation in accordance with 3.15, a tape (see 3.17), and metal shield that meets the requirements of 3.19, three grounding conductors (see 3.13.1.2), and one center ground-check conductor (see 3.12.2). All power and grounding conductors, and any necessary fillers shall be assembled with a left-hand lay in accordance with Table 3-5 and covered with a jacket that meets the requirements of 3.21. A groundcheck conductor shall be laid in the center of the assembly with one grounding conductor in each of the outer three interstices. These cables shall be in accordance with Table 3-23. 3.10.1.6 Type SHD-PCG Round Three-Conduc tor Cables, 2,000 Volts or Less These cables shall consist of three power conductors (see 3.11), which are separately covered with insulation meeting requirements of 3.15, a tape (see 3.17) and a metallic shield which meets the requirements of 3.19, a grounding conductor (see Table 3-26), and one or more control conductors (see 3.12.1) under a unit jacket. The cables shall be in accordance with Table 3-26. All power conductors, the unit of control conductors and any necessary fillers shall be cabled around the grounding conductor with a left-hand lay, in accordance with the four conductor lay length in Table 3-5.


ANSI/NEMA WC 58-2008 ICEA S-75-381-2008 Page 17 The jacketed unit of control conductors shall be laid between the black and red power conductors. The cable shall be covered with a jacket that meets the requirements of 3.21. These cables shall comply with the requirements of SHD-GC cables unless otherwise specified in 3.10.1.6 and Table 3-26. 3.10.1.6.1

Contro l Condu cto rs for Type SHD-PCG Cable

The control conductor shall not be smaller than 10 AWG. A minimum of 49 strands of annealed coated or uncoated copper wire shall be used. If a larger size control conductor is utilized, the number of strands shall not be less than specified for a power conductor of the same size (see Table 3-25). A separator may be used between the conductor and insulation. 3.10.1.6.2

Groun ding Condu ctor for Type SHD-PCG Cable

The grounding conductor for type SHD-PCG shall be coated annealed copper and shall be uncovered. The size and number of strands for the grounding conductor shall be in accordance with Table 3-26. 3.10.1.6.3

Assemb ly Constr uct ion

Control Conductor Insulation, Assembly, and Unit Covering 3.10.1.6.3.1

Insul ation for the Contro l Condu cto rs

The insulation for the control conductors shall be one of the types given in Table 3-2 and shall meet the requirements specified in Table 3-2. The average thickness shall not be less than 0.030 inch for size 10 AWG and shall not be less than 0.045 inch for sizes 8 AWG and larger. The minimum thickness at any point shall not be less than 90 percent of the specified average value. A separator may be used between the conductor and insulation. 3.10.1.6.3.2

Ass embly of Contro l Condu ctor s

The two, three, or four control conductors shall be cabled with a left-hand lay, with any necessary fillers, in accordance with Table 3-5. The color coding shall be as follows: No. of Conductors 1 2 3 4

Colors Yellow Black, White Black, White, Red Black, White, Red, Blue

When only one control conductor is required, the insulation may be appli ed in two layers.

3.10.1.6.3.3

Unit Coveri ng

The unit jacket for the control conductors shall be one of the types given in Table 3-4. The diameter of the control unit shall be approximately equal to the nominal diameter of an insulated and shielded power conductor. 3.10.2

Shiel ded Cables 2,001 to 5,000 Volt s

3.10.2.1 Type SH Sing le Conduc tor Cables, 2,001 to 5,000 Volt s These cables shall be covered with an insulation in accordance with 3.15, a tape (see 3.17), a metallic shield that meets the requirements of 3.19, with or without a non-conducting tape over the shield, and a jacket that meets the requirements of 3.21. The cables shall be in accordance with Table 3-20.


ANSI/NEMA WC 58-2008 ICEA S-75-381-2008 Page 18 3.10.2.2 Type SHD Round Three-Conduc tor Cables, 2,001 to 5,000 Volts These cables shall consist of three power conductors that are separately covered with insulation in accordance with 3.15, a tape (see 3.17) and a shield that meets the requirements of 3.19, and three grounding conductors (see Table 3-25), one in each interstice. All power and grounding conductors and any necessary fillers shall be cabled together with a left-hand lay in accordance with Table 3-5 and covered with a jacket that meets the requirements of 3.21. These cables shall be in accordance with Table 3-22. 3.10.2.3 Type SHD-GC Roun d Three-Cond uc to r Cabl es, 2,001 to 5,000 Volt s These cables shall consist of three power conductors that are separately covered with insulation in accordance with 3.15, a tape (see 3.17), and a shield that meets the requirements of 3.19, and two grounding conductors (see Table 3-25) and one ground-check conductor (see 3.12.2). All power conductors, grounding conductors, the ground-check conductor and any necessary fillers shall be cabled with a left-hand lay in accordance with Table 3-5 and covered with a jacket that meets the requirements of 3.21. The ground-check conductor shall be laid between the black and white power conductors. These cables shall be in accordance with Table 3-22. 3.10.2.4 Type SHD-CGC Roun d Three-Cond uc tor Cables , 2,001 to 5,000 Volt s These cables shall consist of three power conductors that are separately covered with insulation in accordance with 3.15, a tape (see 3.17), and metal shield that meets the requirements of 3.19, three grounding conductors (see 3.13.1.2), and one center ground-check conductor (see 3.12.2). All power and grounding conductors, and any necessary fillers shall be assembled with a left-hand lay in accordance with Table 3-5 and covered with a jacket that meets the requirements of 3.21. A groundcheck conductor shall be laid in the center of the assembly with one grounding conductor in each of the outer three interstices. These cables shall be in accordance with Table 3-23. 3.10.2.5 Type SHD-PCG Roun d Three-Cond uc to r Cabl es, 2,001 to 5,000 Volt s These cables shall consist of three power conductors (see 3.11), which are separately covered with insulation meeting requirements of 3.15, a tape (see 3.17) and a metallic shield which meets the requirements of 3.19, a grounding conductor (see Table 3-26), and one or more control conductors (see 3.12.1) under a unit jacket. The cables shall be in accordance with Table 3-26. All power conductors, the unit of control conductors and any necessary fillers shall be cabled around the grounding conductor with a left hand lay, in accordance with the four conductor lay length in Table 3-5. The jacketed unit of control conductors shall be laid between the black and red power conductors. The cable shall be covered with a jacket that meets the requirements of 3.21. These cables shall comply with the requirements specified in 3.10.2.5 and Table 3-26. 3.10.2.5.1

Contro l Condu ctor s for Type SHD-PCG Cable

The control conductor shall not be smaller than 10 AWG. A minimum of 49 strands of annealed coated or uncoated copper wire shall be used. If a larger size control conductor is utilized, the number of strands shall not be less than specified for a power conductor of the same size (see Table 3-25). A separator may be used between the conductor and insulation. 3.10.2.5.2

Ground ing Conduc tor for Type SHD-PCG Cable

The grounding conductor for type SHD-PCG shall be coated annealed copper and shall be uncovered. The size and number of strands for the grounding conductor shall be in accordance with Table 3-26.



3.10.2.5.3

Assemb ly Constr uct ion

Control conductor insulation, assembly and unit covering 3.10.2.5.3.1

Insul ation for the Contro l Condu cto rs

The insulation for the control conductors shall be one of the types given in Table 3-2 and shall meet the requirements specified in Table 3-2. The average thickness shall not be less than 0.030 inch for size 10 AWG and shall not be less than 0.045 inch for sizes 8 AWG and larger. The minimum thickness at any point shall not be less than 90 percent of the specified average value. A separator may be used between the conductor and insulation. 3.10.2.5.3.2

Ass embly of Contro l Condu ctor s

The two, three, or four control conductors shall be cabled with a left-hand lay, with any necessary fillers, in accordance with Table 3-5. The color coding shall be as follows: No. of Conductors 1 2 3 4

Colors Yellow Black, White Black, White, Red Black, White, Red, Blue

When only one control conductor is required, the insulation may be appli ed in two layers. 3.10.2.5.3.3

Unit Coveri ng

The unit jacket for the control conductors shall be one of the types given in Table 3-4. The diameter of the control unit shall be approximately equal to the nominal diameter of an insulated and shielded power conductor. 3.10.3

Shiel ded Cables 5,001 to 25,000 Volt s

3.10.3.1 Type SH Single Cond uct or Cables, 5,001 to 25,000 Volts These cables shall be covered with an insulation in accordance with 3.15, a tape (see 3.17), a metallic shield that meets the requirements of 3.19, with or without a non-conducting tape over the shield, and a jacket that meets the requirements of 3.21. The cables shall be in accordance with Table 3-20. 3.10.3.2 Type SHD Round Three-Conduc tor Cables, 5,001 to 25,000 Volts These cables shall consist of three power conductors that are separately covered with insulation in accordance with 3.15, a tape (see 3.17) and a shield that meets the requirements of 3.19, and three grounding conductors (see Table 3-25), one in each interstice. All power and grounding conductors and any necessary fillers shall be cabled together with a left-hand lay in accordance with Table 3-5 and covered with a jacket that meets the requirements of 3.21. These cables shall be in accordance with Table 3-22. 3.10.3.3 Type SHD-GC Roun d Three-Cond uc to r Cabl es, 5,001 to 25,000 Volt s These cables shall consist of three power conductors that are separately covered with insulation in accordance with 3.15, a tape (see 3.17), and a shield that meets the requirements of 3.19, and two grounding conductors (see Table 3-25) and one ground-check conductor (see 3.12.2). All power conductors, grounding conductors, the ground-check conductor and any necessary fillers shall be cabled with a left-hand lay in accordance with Table 3-5 and covered with a jacket that meets the © Copyright 2008 by the National Electrical Manufacturers Association and the Insulated Cable Engineers Association

ANSI/NEMA WC 58-2008 ICEA S-75-381-2008 Page 20 requirements of 3.21. The ground-check conductor shall be laid between the black and white power conductors. These cables shall be in accordance with Table 3-22. 3.11

POWER CONDUCTORS

Power conductors shall be made of annealed coated or uncoated copper wires. The minimum number of wires for each particular size shall comply with Table 3-25. The DC resistance shall comply with Table 2-4. A separator over the conductor may be used for cables rated 2,000 volts or less. On cables rated above 2,000 volts, a stress control layer in accordance with 3.14 shall be applied over the conductor. 3.12

CONTROL AND GROUND-CHECK CONDUCTORS

3.12.1

Contro l Conduc tor s for Type PCG and SHD-PCG Cables

The control conductor shall not be smaller than 10 AWG. A minimum of 49 strands of annealed coated or uncoated copper wire shall be used. If a larger size control conductor is utilized, the number of strands shall not be less than specified for a power conductor of the same size (see Table 3-25). A separator may be used between the conductor and insulation. 3.12.2

Ground -Check Condu cto rs

The ground-check conductor for Type G-GC, SHC-GC and SHD-GC shall be as given in Tables 3-12, 321 and 3-22. A minimum of 49 strands of annealed coated or uncoated copper wire shall be used. If a larger size ground-check conductor is utilized, the minimum number of wires shall not be less than specified for a power conductor of the same size (see Table 3-25). A separator may be used betwee n the conductor and insulation. The center ground-check conductor for Type G-CGC and SHD-CGC shall contain a minimum of 28 strands of annealed coated or uncoated copper laid around a core of nonmetallic material. The crosssectional area of the conductor shall not be less than 1800 circular mils. A separator may be used between the conductor and insulation. 3.12.3

Ground -Check Condu cto r for Flat G-GC

The ground-check conductor for flat G-GC shall be at least an 8 AWG annealed copper conductor and shall be flat, rectangular or oval in shape. 3.13

GROUNDING CONDUCTORS

The grounding conductors shall be annealed copper and shall meet the requirements of Table 2-4 3.13.1

Size and Numb er

3.13.1.1 Rou nd Typ e SHC-GC, SHD, SHD-PCG, and SHD-GC The size and number of wires for grounding conductors in round Type SHC-GC, SHD, and SHD-GC shall be in accordance with Table 3-25. The grounding conductors for shielded cables shall be uncovered. 3.13.1.2 Type SHD-CGC The size and number of wires for grounding conductors in Type SHD-CGC shall be in accordance with Table 3-23.


ANSI/NEMA WC 58-2008 ICEA S-75-381-2008 Page 21 The grounding conductors shall be uncovered. 3.13.1.3 Type SHD FLAT, 2,000 Volt s or Less The grounding conductors for Type SHD Flat cables shall be of the size and stranding given in Table 327. The grounding conductors shall be separately covered with a conducting extrusion layer. The conducting extruded material shall meet the physical requirements for Insulation Shielding in Section 4.5. The conducting extrusion layer shall be in intimate contact with the shielded conductors. 3.13.2

Flat Twin Type G

The single-grounding conductor for flat twin Type G cables shall be flat, rectangular, or oval in shape, composed of either coated or uncoated copper and shall have a minimum cross-sectional area of 50 percent of the power conductor but not less than the cross-sectional area of an 8 AWG conductor as given in Table 3-7. The grounding conductor may be covered or uncovered. When used, the outer covering over the grounding conductor shall be green in color and may be in the form of an extruded layer, braid, tape, or other suitable means. 3.13.3

Flat Three-Cond ucto r Type G

The two grounding conductors for flat three-conductor Type G cables shall be flat, rectangular, or oval in shape, composed of either coated or uncoated copper and of the size given in Table 3-11. The grounding conductors may be covered or uncovered. When used, the outer covering over the grounding conductor shall be green in color and may be in the form of an extruded layer, braid, tape, or other suitable means. 3.13.4

Roun d Type G, G-GC and G-CGC

The grounding conductors for three-conductor round Type G, G-GC and G-CGC shall be of the size and stranding given in Table 3-25, 3-12 and 3-13, respectively. The grounding conductors may be covered or uncovered. When used, the outer covering over the grounding conductor shall be green in color and may be in the form of an extruded layer, braid, tape, or other suitable means. 3.13.5

Flat Three-Con du ct or Type G-GC

The grounding conductors for flat three-conductor Type G-GC cables shall be flat, rectangular, or oval in shape, composed of either coated or uncoated copper and of the size given in Table 3-14. The grounding conductors may be covered or uncovered. When used, the outer covering over the grounding conductor shall be green in color and may be in the form of an extruded layer, braid, tape, or other suitable means. 3.13.6

Round Five-Conduc tor Type G, Type PG, and PCG

The single grounding conductor for five-conductor Type G and for Type PG and PCG cables shall be of the size and stranding given in Tables 3-16, 3-17, and 3-18 respectively. The grounding conductors may be covered or uncovered. When used, the outer covering over the grounding conductor shall be green in color and may be in the form of an extruded layer, braid, tape, or other suitable means.



STRESS CONTROL LA YER (CONDUCTOR SHIELD)

Conductors to be insulated for a rated circuit voltage above 2,000 volts shall be covered with a separate stress controlling material compatible with the conductor and the insulation. The material shall have allowable operating temperatures at least equal to those given for the insulation. The stress control layer shall be a polymeric covering consisting of a conducting tape, extruded material or extruded material over conducting tape. The layer shall have a minimum thickness of 0.0025 inches. 3.14.1

Extrud ed Stress Contro l Layer (Conduc tor Shield)

3.14.1.1 Physic al Properti es Extrudable material, prior to application to the conductor, when tested in accordance with 6.4.15 shall meet the following requirements: o

o

Elongation after air oven test at 121 C ± 1 C for 168 hrs. minimum percent

100

Brittleness temperature not warmer than deg. C

-10

3.14.1.2 Electrical Requirements 3.14.1.2.1

Condu ctin g Stress Contro l Material

The resistivity of an extruded conducting material when measured according to 6.17.3 shall not exceed 1,000 ohm-meter at room temperature and at the maximum normal operating temperature of the cable. A conducting non-metallic tape shall have a maximum dc resistance at room temperature of 10,000 ohms per unit square when tested in accordance with ASTM D 4496. 3.14.1.2.2

Nonco ndu ctin g Stress Contro l Material

An extruded nonconducting stress controlling material, when measured according to 6.17.4, shall meet the following requirements at room temperature and at the maximum normal operating temperature of the cable: Permittivity (SIC) range

10–1,000

60 Hz AC voltage withstand stress, volts per mil, minimum

1500/permittivity

This material is only applicable for conductors having ethylene propylene insulation. 3.15

POWER CONDUCTOR INSULATION

3.15.1

Insul ation Physic al and Electric al Requirements

The insulation for the power conductor shall meet the requirements given in Table 3-1. 3.15.2

Insulati on Thickn ess

The average thickness shall not be less than specified in Tables 3-6 through 3-23 and Table 3-27. The minimum thickness shall not be less than 90 percent of the specified value. The highest rated circuit voltage specified in these tables represents the maximum operating voltage recommended for the given insulation thickness.


ANSI/NEMA WC 58-2008 ICEA S-75-381-2008 Page 23 3.15.2.1 Optional Extruded Conducting Layer Applied over the Insulation (Insulation Shield) Type SH, SHD, and SHD-GC cables using EP insulation for cables rated 8–25 kV inclusive, may have an extruded conducting layer applied over the insulation. When an extruded conducting layer is used, the average insulation thickness and the sum of the average insulation thickness plus the average extruded conducting layer thickness shall be not less than the values given below: Thickness, Inch Voltage Rating, kV 8 15 25

EP Insulation 0.115 0.175 0.260

EP Insulation plus Extruded Conducting Layer 0.150 0.210 0.295

The minimum insulation thickness shall be not less than 90 percent of the specified values. The minimum thickness of the insulation plus the thickness of the extruded conducting layer at the same point shall be not less than 90 percent of the specified value. The extruded crosslinked conducting layer shall meet the requirements of 4.5.1. The tension necessary to remove the extruded conducting layer from cable at room temperature shall be not less than 3 lbs. (see 6.15). A conducting tape shall be applied over the extruded conducting layer. The extruded conducting layer and the conducting tape shall be plainly identified as being conducting (see 3.17). A conducting nonmetallic tape shall have a maximum DC resistance at room temperature of 10,000 ohms per unit square when tested in accordance with ASTM D 4496. 3.16

GROUND CHECK AND CONTROL CONDUCTOR INSULATION

The insulation for the ground-check and control conductors shall be one of the types given in Table 3-2 and shall meet the requirements specified in Table 3-2. The average thickness shall not be less than 0.030 inch for sizes 10 AWG and smaller and shall not be less than 0.045 inch for sizes 8 AWG and larger. The minimum thickness at any point shall not be less than 90% of the specified average value. 3.17

TAPES AND BRAIDS

3.17.1

Power Condu ctor s

3.17.1.1 Nonshi elded Cables Colored insulation may be used for circuit identification. If colored insulation is not used, a colored tape or braid or other suitable means of identification shall be used. 3.17.1.2 Shield ed Cables For Types SHC-GC and SHD FLAT (2,000 Volts or less), colored insulation may be used for circuit identification. If colored insulation is not used, a colored tape or braid or other suitable means of surface identification shall be used. For Types SH, SHD, SHD-GC, SHD-PCG, and SHD-CGC Cables (25,000 Volts or less), a tape shall be used over the insulation. If a conducting tape is used, it shall be plainly identified as being conducting. For cables rated 5,001 volts and higher, the tape shall be conducting. A conducting non-metallic tape shall have a maximum DC resistance at room temperature of 10,000 ohms per unit square when tested in accordance with ASTM D 4496.



Ground Check and Control Conductors

Colored insulation may be used as identification for ground check and control conductors. If colored insulation is not used, a colored tape or braid or other suitable means of identification shall be used.


ANSI/NEMA WC 58-2008 ICEA S-75-381-2008 Page 25 Table 3-1 POWER CONDUCTOR INSULA TION REQUIREMENTS Ethylene Propylene Type I Type II Up to 2 kV Above 2 kV Up to 2 kV Above 2 kV

INITIAL PHYSICAL PROPERTIES Tensile Strength, min., psi Tensile Stress @ 100% Elongation, min., psi Elongation at Rupture, min, %

Crossl ink ed Polyethy lene Up to 2 kV Above 2 kV

700

700

1,200

1,200

1,800

1,800

--250

--250

500 150

500 150

--250

--250

75

75

75

75

75

75

Dielectric Constant After 24 hours, max.

6.0

4.0

6.0

4.0

6.0

3.5

Increase in Capacitance Maximum, percent 1-14 days 7-14 days

5.0 3.0

3.5 1.5

5.0 3.0

3.5 1.5

3.0 1.5

3.0 1.5

1.0

1.0

1.0

1.0

1.0

1.0

0.5

0.5

0.5

0.5

0.5

0.5

10,000

20,000

10,000

20,000

10,000

20,000

-----

2.0 4.0

-----

2.0 4.0

-----

2.0 3.5

AIR OVEN AGING o

After conditioning @ 121 C o ± 1 C for 168 hours Tensile Strength & Elongation, min., percentage of unaged value ACCELERATED WATER ABSORPTION

*Stab. Factor after 14 days or *Alternate to Stability Factor (Stability Factor Difference) 1-14 days max INSULATION RESISTANCE o

IR @ 15.6 C, min., Megohms-1,000 feet ADDITIONAL REQUIREMENTS Power Factor max., % after 24 hr **Permittivity (SIC) Hot Creep (ICEA T-28-562) o

o

After conditioning @ 150 C ± 2 C

Elongation, max., % Set, max., %

50 5

50 5

50 5

50 5

All Voltages ***Unfilled ***Filled 175 100 10 5

* Only one of these two requirements needs to be satisfied, not both. ** Applies only to cables rated 5,001 volts and above. ***If this value is exceeded, the solvent extraction test may be performed and will serve as a referee method to determine compliance. Requirement shall be 30 percent maximum extractibles after 20 hours drying.



Table 3-2 GROUND-CHECK AND CONTROL CONDUCTOR INSULATION REQUIREMENTS Crosslinked Ethylene Propylene Type I Type II

Crosslinked Polyethyl ene

Chlorinated Polyethyl ene

Chlorosulfonated Polyethy lene

Thermoplastic Thermoplastic PolyElastomer Propyl ene

INITIAL PHYSICAL PROPERTIES At Roo m Temp eratu re Tensile Strength, min, psi Tensile Stress @ 100% Elongation, min. Psi Elongation at rupture, min. percent Set, max, percent

700

1,200

1,800

1,500

1,500

1,500

3,000

-

500

-

-

-

-

2,500

250 -

150 -

250

300 30

300 30

300

300

121

121

121

121

121

121

100

168

168

168

168

168

168

48

75 75

75 75

75 75

85 55

85 50

75 75

75 75

AIR OVEN AGING REQUIREMENTS o

After Conditioning @ C o ± 1 C Hours min percent retention of original value Tensile Strength Elongation



CONDUCTOR IDENTIFICATION*

Identification shall be any suitable means in accordance with the color sequence given in 3.18.1 and 3.18.2. Note that the conductor identification may not comply with applicable CSA standards. 3.18.1

Power Condu ctor s Two-Conductor cables All types .........................................................black, white Three-conductor cables Type G (round and flat), PG, PCG, C-GC, G-CGC, SHC**, SHC-GC**, SHD-GC**, SHD-CGC**, SHD-PCG and SHD** .....................................................black, white, red Type W ......................................................... black, white, green Four-conductor cables Type G ...........................................................black, white, red, orange Type W ..........................................................black, white, red, green Five-conductor cables Type G ........................................................... black, white, red, orange, blue Type W .......................................................... black, white, red, green, orange Six-conductor cables Type W .......................................................... black, white, red, green, orange, blue

**If conducting nonmetallic tapes are used, identification may be by means of stripes or printing in a contrasting color. A narrow colored strip paralleled under the metallic shield also may be used as a method of conductor identification. 3.18.2

Control and Ground-check Conductors Control conductors, Type PCG ......................................black, white Ground-check conductor, Type G-GC (round or flat), G-CGC, SHD-GC, SHD-CGC, SHC-GC, and SHD-PCG .......................................... yellow

3.19

SHIELDING

The shielding for Types SH, SHD, SHC-GC, SHD-GC, SHD-PCG, and SHD-CGC cables shall consist of metallic nonmagnetic wires in the form of an all metallic braid, a metallic serving or wrap or a composite copper/fiber braid. If copper or copper alloy wires are used, they shall be coated. (See 2.1).



3.19.1

Metallic Braid Shields

If shielding is applied in the form of a metal braid, the coverage shall be not less than 84 percent as determined by the following formula: 2

Percent coverage = 100 (2F - F ) Where: F =

NPd sin α

Tan α =

2 π DP C

α = Angle of braid with axis of cable

d C D N P

3.19.2

= = = = =

diameter of individual braid wires in inches number of carriers diameter under shield in inches number of wires per carrier picks per inch

Metal Wire Shield s

If the shielding is applied in the form of a serving or wrap, the coverage shall be not less than 60 percent as determined by the following formula: Percent coverage = Nd/W x 100 Where: N d D α

C Tan α W

3.20

= Number of parallel wires = Diameter of individual wires in inches = Diameter under shield in inches = Angle between serving wires and axis of cable = Pitch of serving in inches = π D/C = π D cos α

CONDUCTOR ASSEMBL Y

For round cables, the insulated conductors, together with grounding conductors and any necessary fillers, shall be cabled with a left-hand lay. For Type SHD, SHD-GC, and SHD-CGC cables, the grounding conductors shall be in contact with the metallic shields. A binder tape and/or threads may be used over the assembly. The maximum length of lay shall be in accordance with Table 3-5.



JACKETS

3.21.1

Duty Rating

Jackets shall be heavy-duty or extra-heavy-duty crosslinked compounds. Extra-heavy-duty jackets are required for cables having a nominal outside diameter of more than 2.00 inches and for all shielded cables and single-conductor hard-service cables. Shielded cables rated 5kV and above may have a thermoplastic polyurethane jacket that meets the requirements of Table 3-3. 3.21.2

General

The jacket shall be applied in one or two layers. If applied in two layers, the outer jacket shall constitute at least 50 percent of the total thickness of jacket. The single-layer jacket and the outer layer of a two-layer jacket shall meet the appropriate requirements in Table 3-3 and 3-4 when tested in accordance with test methods described in Part 6. Single- or two-layer jackets shall be reinforced by use of an appropriate tape or two servings or a braid of a suitable natural or synthetic material. The diameter of the reinforcing material shall not be greater than 0.035 inches. If two servings are used, they shall be applied in opposite directions of lay. The reinforcing shall be under the single-layer jacket and between the layers of the two-layer construction. On flat cables, the reinforcing serving or braid shall be applied to each individual conductor or over the assembly. 3.21.3

Thickn ess of Jacket

The average thickness of the jacket shall be not less than given in Tables 3-19 through 3-23, Table 3-26, and Table 3-27. The minimum thickness shall be not less than 80 percent of the values given in the tables. The reinforcing specified in 3.21.2 shall be included in the measurement of the jacket thickness. The thickness of jackets for portable cables not covered by Tables 3-6 through 3-23, Tabl e 3-26, and Table 3-27 shall be in accordance with Table 3-24. Jacket thickness in Tables 3-6 and 3-7 shall be such as to obtain the specified outside cable diameter. 3.22

COMPLETED CABL E

3.22.1

Outsid e Diameters

Nominal outside diameters of the completed cable shall be in accordance with Tables 3-6 through 3-23, Table 3-26 and Table 3-27. 3.22.2

Diameter Tolerances

The tolerance for outside diameters from the values specified in Tables 3-6 through 3-23, Table 3-26, and 3-27 shall be as follows: CABLE TYPE

OUTSIDE DIAMETER(inch )

2 kV Flat 2 conductor 2 kV Flat 3 and 4 cond uctor 2 kV Round Nonshielded 8 - 1 AWG 1/0 - 2/0 AWG 3/0 - 4/0 AWG 250 –1,000 kcmil 2 kV Round Shielded 2 kV Flat Shielded 5-25 kV Round Shielded

Major: ± 0.04/Minor ± 0.03 Major: ± 0.08/Minor ± 0.05 ± 0.03 ± 0.04 ± 0.05 ± 0.06 ± 5% Major: ± 0.08/Minor ± 0.05 + 8%, - 5%



3.22.3

Marking

The cable shall be identified throughout its length to indicate the manufacturer. 3.22.3.1 Special Markin g Requirements for Type SHD Flat, 2,000 Volts or L ess In addition to all other required markings, Type SHD Flat cables shall be marked throughout their length with the following: 1,000 FT MAX LENGTH The cable tag shall include the following statement: This cable is for use only in systems that are limited to less than 10 amps of ground fault current. The purpose of the marking and tagging requirements for the Type SHD Flat cables is to prevent human exposure to potentially high ground fault currents. 3.22.4

Tests

The cable shall be tested in accordance with Part 6 and shall meet the requirements specified in this standard. 3.22.4.1 Nonshi elded Cable The power conductors shall be spark tested at the test voltages listed below prior to jacketing.

Spark Test Voltage Size, AWG or k cmi l 8-2 1-4/0 250- 500 501-1,000

AC Test Voltage kV 12.5 15.0 17.5 22.5

Completed nonshielded cables shall withstand the AC test voltage or the DC test voltage specified in Table 3-6 through 3-19. Testing shall be in accordance with Section 6.17.1. The completed cable shall pass the Cold Bend Test at –20°C, per Section 6.11. 3.22.4.2 Shielded Cable Rated 5 kV or less Completed shielded cable rated 5 kV or less shall withstand 5 minutes without immersion in water the AC test voltage or the DC test voltage (when given) specified in Table 3-19, 3-20, 3-21, and 3-22. The completed cable shall pass the Cold Bend Test at –20°C, per Section 6.11. 3.22.4.3 Shield ed Cable Rated over 5 kV Completed shielded cable rated over 5 kV shall withstand without immersion in water the AC test voltage specified in Table 3-20 and 3-22 for 5 minutes, and shall withstand the DC test voltage specified in Table 3-20 and 3-22 for 15 minutes. The completed cable shall pass the Cold Bend Test at –20°C, per Section 6.11. 3.22.4.4 Insulati on Resist ance Test The power conductors in a completed cable shall comply with the requirements for insulation resistance after the high voltage AC tests and before any DC voltage test. © Copyright 2008 by the National Electrical Manufacturers Association and the Insulated Cable Engineers Association


When a nonconducting separator is applied between the conductor and insulation and for jacketed o nonshielded cables, the insulation resistance shall not be less than 60 percent of the required 15.6 C value based on the actual insulation thickness and insulation resistance constant value given in Table 3-1. 3.22.4.5 Ground-check or Control Conducto r Each insulated ground-check or control conductor shall withstand prior to assembly either the AC or DC spark test voltages or the AC or DC test voltages applied for 5 minutes after 6 hours immersion in water. The tests voltages shall be as listed below. A voltage test on the insulated ground-check conductor in the completed cable shall be made between the ground-check conductor and the grounding conductors by applying an AC voltage of 3.0 kV for 15 seconds. The insulation resistance test is not required.

Ground-Check and Control Conduc tor Test Voltages Chorosulfon ated Polyethylene and Chlori nated Polyethylene Insulation Thickness inch

AC Test Voltage kV

DC Test Voltage kV

AC Spark Voltage kV

DC Spark Voltage kV

0.030

3.0

9.0

7.5

9.0

0.045

3.5

10.5

9.0

10.5

Ethylene Propylene, Crossli nked Polyethylene, Thermoplastic Elastomer and Polypropylene 0.030

3.5

10.5

7.5

10.5

0.045

5.5

16.5

10.0

16.5


ANSI/NEMA WC 58-2008 ICEA S-75-381-2008 Page 32 Table 3-3 EXTRA-HEAVY-DUTY CROSSLINKED JACKETS AND THERMOPLASTIC POLYURETHANE Chlorinated PHYSICAL REQUIREMENTS

Nitrile butadiene/

Chlorosulf onated

Thermoplastic

Polyethylene

Neoprene

Polyvinyl-chlorid e

Polyethylene*

Polyurethane

2,400

2,400

2,400

2,400

3,700

Tensile stress at 200 percent elongation, min., psi

700

700

700

700

800

Elongation at rupture, min., percent

300

300

300

300

400

Set, max., percent

30

20

30

30

N/A

Tear resistance, min., ppi

40

40

40

40

80

AGING REQUIREMENTS o o After air oven test at 100 C ± 1 C for 168 hours Tensile strength, min., percentage of unaged value

70

50

50

70

50

Elongation at rupture, min., percentage of unaged value

55

50

50

60

75

After oil immersion test at 121 C ± 1 C for 18 hours Tensile strength and elongation, min., percentage of unaged value

60

60

60

60

60

ELECTRICAL REQUIREMENTS Surface resistance, nonshielded cables min., megohms

100

100

100

100

N/A

Tensile Strength, min., psi

o

o

*Also known as Chlorosulfonyl Polyethylene


ANSI/NEMA WC 58-2008 ICEA S-75-381-2008 Page 33 Table 3-4 HEAVY-DUTY CROSSLINKED JACKETS Chlorinated PHYSICAL REQUIREMENTS

Nitrile Butadiene/

Chlorosulf onated

Polyethyl ene

Neoprene

Polyvi nyl-ch lor ide

Polyethy lene*

1,800

1,800

1,800

1,800

Tensile stress at 200 percent elongation, min., psi

500

500

500

500

Elongation at rupture, min., percent

300

300

300

300

Set, max, percent

30

20

30

30

AGING REQUIREMENTS o o After air oven test at 100 C ± 1 C for 168 hours Tensile Strength, min., percentage of unaged value

85

50

50

85

Elongation at rupture, min., percentage of unaged value

55

50

50

65

After oil immersion test at 121 C ±1 C for 18 hours Tensile Strength and Elongation, min,, percentage of unaged value

60

60

60

60

ELECTRICAL REQUIREMENTS Surface resistance, nonshielded cables min., megohms

100

100

100

100

Tensile Strength, min., psi

o

o

* Also known as Chlorosulfonyl Polyethylene

Table 3-5 MAXIMUM LENGTH OF LAY Number of power Conductors 2 3 4 5 6

Factors for Maximum Length of Lay * 20 x d 21 x d 23 x d 27 x d 30 x d

* d = diameter of individual power conductor.


ANSI/NEMA WC 58-2008 ICEA S-75-381-2008 Page 34 Table 3-6 2,000 VOLTS OR LESS SINGLE-CONDUCTOR PORTABLE POWER CABLE Insulation Thickness Power Conductor Size AWG or kcmil* 8 6 4 3 2 1

Inch

mm

0.060 0.060 0.060 0.060 0.060 0.080

1/0 2/0 3/0 4/0

Test Voltage, kV

Outside Diameter Normal Service Inches

Normal Service mm

Hard Service Inches

Hard Service mm

1.52 1.52 1.52 1.52 1.52 2.03

0.44 0.51 0.57 0.63 0.66 0.74

11.18 12.95 14.48 16.00 16.76 18.80

0.51 0.59 0.64 0.68 0.71 0.82

0.080 0.080 0.080 0.080

2.03 2.03 2.03 2.03

0.77 0.82 0.87 0.93

19.56 20.83 22.10 23.62

250 300 350 400 450

0.095 0.095 0.095 0.095 0.095

2.41 2.41 2.41 2.41 2.41

1.03 1.09 1.15 1.20 1.26

500 550 600 650 700 750 800 900 1,000

0.095 0.110 0.110 0.110 0.110 0.110 0.110 0.110 0.110

2.41 2.79 2.79 2.79 2.79 2.79 2.79 2.79 2.79

1.31 1.42 1.46 1.50 1.54 1.58 1.62 1.69 1.76

AC

DC

12.95 14.99 16.26 17.27 18.03 20.83

7.0 7.0 7.0 7.0 7.0 8.0

21.0 21.0 21.0 21.0 21.0 24.0

0.87 0.95 1.04 1.11

22.10 24.13 26.42 28.19

8.0 8.0 8.0 8.0

24.0 24.0 24.0 24.0

26.16 27.69 29.21 30.48 32.00

1.18 1.25 1.30 1.36 1.41

29.97 31.75 33.02 34.54 35.81

9.5 9.5 9.5 9.5 9.5

28.5 28.5 28.5 28.5 28.5

33.27 36.07 37.08 38.10 39.12 40.13 41.15 42.93 44.70

1.45 .... .... .... .... .... .... .... ....

36.83 .... .... .... .... .... .... .... ....

9.5 11.5 11.5 11.5 11.5 11.5 11.5 11.5 11.5

28.5 34.5 34.5 34.5 34.5 34.5 34.5 34.5 34.5

*See Table 3-25.


ANSI/NEMA WC 58-2008 ICEA S-75-381-2008 Page 35 Table 3-7 2,000 VOLTS OR LESS TYPE W AND G TWO-CONDUCTOR FLAT TWIN PORTABLE POWER CABLES Power Conductor Insulation Size, Thickness, AWG** Inch mm

Each Grounding Conductor Size, AWG

Overall Dimensions

8 6 4 3 2 1

0.060 0.060 0.060 0.060 0.060 0.080

1.52 1.52 1.52 1.52 1.52 2.03

... ... ... ... ... ...

0.51 0.58 0.61 0.68 0.73 0.81

13.0 14.7 15.5 17.3 18.5 20.6

1/0 2/0 3/0 4/0

0.080 0.080 0.080 0.080

2.03 2.03 2.03 2.03

... ... ... ...

0.93 0.99 1.03 1.10

23.6 25.1 26.2 27.9

mm

Test Voltage, kV AC DC

0.84 0.93 1.05 1.14 1.24 1.40

21.3 23.6 26.7 29.0 31.5 35.6

7.0 7.0 7.0 7.0 7.0 8.0

21.0 21.0 21.0 21.0 21.0 24.0

1.51 1.63 1.77 1.89

38.4 41.4 45.0 48.0

8.0 8.0 8.0 8.0

24.0 24.0 24.0 24.0

Minor

Major

Inches mm Inches Type W (Without Grounding Conductor)

Type G (With Groundin g Conductor ) 6 4 3 2 1

0.060 0.060 0.060 0.060 0.080

1.52 1.52 1.52 1.52 2.03

8 7 6 5 4

0.56 0.61 0.68 0.73 0.81

14.2 15.5 17.3 18.5 20.6

1.02 1.15 1.26 1.35 1.55

25.9 29.2 32.0 34.3 39.4

7.0 7.0 7.0 7.0 8.0

21.0 21.0 21.0 21.0 24.0

1/0 2/0 3/0 4/0

0.080 0.080 0.080 0.080

2.03 2.03 2.03 2.03

3 2 1 1/0

0.93 0.99 1.03 1.10

23.6 25.1 26.2 27.9

1.67 1.85 2.00 2.10*

42.4 47.0 50.8 53.3*

8.0 8.0 8.0 8.0

24.0 24.0 24.0 24.0

*This cable requires an extra-heavy-duty jacket. (see 3.21). **See Table 3-25.

Table 3-8 2,000 VOLTS OR LESS TYPE W AND G TWO-CONDUCTOR ROUND PORTABLE POWER CABLES Power Conductor Size, AWG or k cmi l** 8 6 4 3 2 1

Insulation Thickness

Outsi de Diameter

Test Voltage, kV

Inch 0.060 0.060 0.060 0.060 0.060 0.080

mm 1.52 1.52 1.52 1.52 1.52 2.03

Inch es 0.81 0.93 1.08 1.17 1.27 1.44

mm 20.6 23.6 27.4 29.7 32.3 36.6

AC 7.0 7.0 7.0 7.0 7.0 8.0

DC 21.0 21.0 21.0 21.0 21.0 24.0

1/0 2/0 3/0 4/0

0.080 0.080 0.080 0.080

2.03 2.03 2.03 2.03

1.52 1.65 1.77 1.92

38.6 41.9 45.0 48.8

8.0 8.0 8.0 8.0

24.0 24.0 24.0 24.0

250 300 350 400 450 500

0.095 0.095 0.095 0.095 0.095 0.095

2.41 2.41 2.41 2.41 2.41 2.41

2.10* 2.22* 2.36* 2.47* 2.60* 2.70*

53.3* 56.4* 59.9* 62.7* 66.0* 68.6*

9.5 9.5 9.5 9.5 9.5 9.5

28.5 28.5 28.5 28.5 28.5 28.5

*These cables require extra-heavy-duty jackets (see 3.21). **See Table 3-25.


ANSI/NEMA WC 58-2008 ICEA S-75-381-2008 Page 36 Table 3-9 2,000 VOLTS OR LESS TYPE W AND G THREE-CONDUCTOR ROUND PORTABLE POWER CABLES Size AWG or k cmi l**

Power Conductor Insulation Thickness, Inch mm

Outside Diameter Inch es mm


8 6 4 3 2 1

0.060 0.060 0.060 0.060 0.060 0.080

1.52 1.52 1.52 1.52 1.52 2.03

0.91 1.01 1.17 1.24 1.34 1.51

23.1 25.6 29.7 31.5 34.0 39.1

7.0 7.0 7.0 7.0 7.0 8.0

21.0 21.0 21.0 21.0 21.0 24.0

1/0 2/0 3/0 4/0

0.080 0.080 0.080 0.080

2.03 2.03 2.03 2.03

1.65 1.75 1.89 2.04*

41.9 44.5 48.0 51.8*

8.0 8.0 8.0 8.0

24.0 24.0 24.0 24.0

250 300 350 400 450 500

0.095 0.095 0.095 0.095 0.095 0.095

2.41 2.41 2.41 2.41 2.41 2.41

2.39* 2.56* 2.68* 2.82* 2.94* 3.03*

60.7* 65.0* 68.1* 71.6* 74.7* 77.0*

9.5 9.5 9.5 9.5 9.5 9.5

28.5 28.5 28.5 28.5 28.5 28.5

* These cables require extra-heavy-duty jackets (see 3.21). **See Table 3-25.

Table 3-10 2,000 VOLTS OR LESS TYPE W AND G FOUR-CONDUCTOR ROUND PORTABLE POWER CABLES Size, AWG or k cmi l**

Power Conductor Insulation thickness Inch mm

Outside Diameter Inch es mm


8 6 4 3 2 1

0.060 0.060 0.060 0.060 0.060 0.080

1.524 1.524 1.524 1.524 1.524 2.032

0.99 1.10 1.27 1.34 1.48 1.68

25.15 27.94 32.26 34.04 37.59 42.67

7.0 7.0 7.0 7.0 7.0 8.0

21.0 21.0 21.0 21.0 21.0 24.0

1/0 2/0 3/0 4/0

0.080 0.080 0.080 0.080

2.032 2.032 2.032 2.032

1.79 1.93 2.07* 2.26*

45.47 49.02 52.58* 57.40*

8.0 8.0 8.0 8.0

24.0 24.0 24.0 24.0

250 300 350 400 450 500

0.095 0.095 0.095 0.095 0.095 0.095

2.413 2.413 2.413 2.413 2.413 2.413

2.66* 2.84* 2.98* 3.14* 3.26* 3.40*

67.56* 72.14* 75.69* 79.69* 82.80* 86.36*

9.5 9.5 9.5 9.5 9.5 9.5

28.5 28.5 28.5 28.5 28.5 28.5




Table 3-11 2,000 VOLTS OR LESS TYPE G THREE-CONDUCTOR FLAT PORTABLE POWER CABLES WITH TWO GROUNDING CONDUCTORS Power Conductor Insulation Size, Thickness

6 4 3 2 1

Inch 0.060 0.060 0.060 0.060 0.080

1.52 1.52 1.52 2.03 2.03

Each Grounding Conductor Size, AWG** 8 8 7 6 5

1/0 2/0 3/0 4/0

0.080 0.080 0.080 0.080

2.03 2.03 2.03 2.03

4 3 2 1

AWG**

mm

Overall Dimensions Minor

Major mm

Test Voltage, kV mm

Inch es 0.67 0.75 0.77 0.81 0.97

17.0 19.1 19.6 20.6 24.6

Inches 1.65 1.85 1.99 2.10* 2.43*

41.9 47.0 50.5 53.3* 61.0*

AC 7.0 7.0 7.0 7.0 8.0

DC 21.0 21.0 21.0 21.0 24.0

1.01 1.10 1.18 1.24

25.7 27.9 30.0 31.5

2.61* 2.86* 3.12* 3.30*

66.0* 71.1* 78.7* 83.8*

8.0 8.0 8.0 8.0

24.0 24.0 24.0 24.0

*These cables require extra-heavy-duty jackets (see 3.21). ** See Table 3-25

Table 3-12 2,000 VOLTS OR LESS TYPE G-GC THREE-CONDUCTOR ROUND PORTABL E POWER CABL ES WITH TWO GROUNDING CONDUCTORS AND ONE GROUND-CHECK CONDUCTOR Power Conductor Size, AWG or kcmil** 8 6 4 3 2 1

Insulation Thickness Inch mm 0.060 1.52 0.060 1.52 0.060 1.52 0.060 1.52 0.060 1.52 0.080 2.03

Each Grounding Conductor Min. Number Size, Wires per AWG Conductor 10 49 10 49 8 49 8 49 7 49 6 133

Ground-check Conductor

Size, AWG 10 10 10 10 10 8

Insulation Thick ness Inch mm 0.030 0.76 0.030 0.76 0.030 0.76 0.030 0.76 0.030 0.76 0.045 1.14

Diameter Inches mm 0.97 24.6 1.05 26.7 1.19 30.2 1.25 31.8 1.34 34.0 1.51 38.4

Test Voltage, kV AC DC 7.0 21.0 7.0 21.0 7.0 21.0 7.0 21.0 7.0 21.0 8.0 24.0

1/0 2/0 3/0 4/0

0.080 0.080 0.080 0.080

2.03 2.03 2.03 2.03

5 4 3 2

133 133 133 133

8 8 8 8

0.045 0.045 0.045 0.045

1.14 1.14 1.14 1.14

1.65 1.75 1.89 2.04*

41.9 44.5 48.0 51.8*

8.0 8.0 8.0 8.0

24.0 24.0 24.0 24.0

250 300 350 400 450 500

0.095 0.095 0.095 0.095 0.095 0.095

2.41 2.41 2.41 2.41 2.41 2.41

2 1 1/0 1/0 2/0 2/0

133 133 259 259 259 259

8 8 8 8 8 8

0.045 0.045 0.045 0.045 0.045 0.045

1.14 1.14 1.14 1.14 1.14 1.14

2.39* 2.56* 2.68* 2.82* 2.94* 3.03*

60.7* 65.0* 68.1* 71.6* 74.7* 77.0*

9.5 9.5 9.5 9.5 9.5 9.5

28.5 28.5 28.5 28.5 28.5 28.5



ANSI/NEMA WC 58-2008 ICEA S-75-381-2008 Page 38 Table 3-13 2,000 VOLTS OR LESS TYPE G-CGC THREE CONDUCTOR ROUND PORTABL E POWER CABL ES WITH THREE GROUNDING CONDUCTORS AND ONE GROUND-CHECK CONDUCTOR (SEE 3.12.2) Power Conductor

Size, AWG or kcmil** 2 1

Insulation Thickness Inch mm 0.060 1.52 0.080 2.03

Each Grounding Conductor Min. Number Size, Wires per AWG Conductor 8 49 7 49

Outsi de Diameter Inches mm 1.39 35.3 1.55 39.4

Test Voltage, kV AC DC 7.0 21.0 8.0 24.0

1/0 2/0 3/0 4/0

0.080 0.080 0.080 0.080

2.03 2.03 2.03 2.03

6 5 4 3

133 133 133 133

1.68 1.77 1.89 2.04*

42.7 45.0 48.0 51.8*

8.0 8.0 8.0 8.0

24.0 24.0 24.0 24.0

250 300 350 500

0.095 0.095 0.095 0.095

2.41 2.41 2.41 2.41

2 1 1 2/0

133 133 133 259

2.39* 2.56* 2.68* 3.03*

60.7* 65.0* 68.1* 77.0*

9.5 9.5 9.5 9.5

28.5 28.5 28.5 28.5

* These cable require extra-heavy-duty jackets (see 3.21). ** See Table 3-24.

Table 3-14 2,000 VOLTS OR LESS TYPE G-GC THREE-CONDUCTOR FLAT PORTABLE POWER CABLES WITH ONE GROUNDING CONDUCTOR AND ONE GROUND-CHECK CONDUCTOR

Size, AWG** 6 4 3 2 1 1/0 2/0 3/0 4/0

Power Conductor Insulation Thickness Inch mm 0.060 1.52 0.060 1.52 0.060 1.52 0.060 1.52 0.080 2.03 0.080 0.080 0.080 0.080

2.03 2.03 2.03 2.03

Grounding Conductor Size, AWG 8 7 6 5 4

Ground Check Conductor Min. Size, AWG 8 8 8 8 8

3 2 1 1/0

8 8 8 8

Overall Dimensions Minor Major Inch es mm Inch es 0.67 17.0 1.69 0.75 19.0 1.89 0.77 19.5 2.06* 0.81 20.5 2.23* 0.97 24.6 2.48* 1.01 1.10 1.18 1.24

25.6 27.9 29.9 31.5

2.67* 2.86* 3.12* 3.30*

mm 42.9 48.0 52.8* 56.6* 62.9*

Voltage, kV AC DC 7.0 21.0 7.0 21.0 7.0 21.0 7.0 21.0 8.0 24.0

67.8* 72.6* 79.2* 83.8*

8.0 8.0 8.0 8.0

*These cables require extra-heavy-duty jackets (see 3.21). **See Table 3-25.


24.0 24.0 24.0 24.0

ANSI/NEMA WC 58-2008 ICEA S-75-381-2008 Page 39 Table 3-15 2,000 VOLTS or LESS TYPE W FOUR-CONDUCTOR FLAT PORTABLE POWER CABLES Size, AWG** 6 4 3 2

Power Condu ctor Insulation Thickness Inch mm 0.060 1.52 0.060 1.52 0.060 1.52 0.060 1.52

__________Overall Dimensi ons________ Minor Major Inch mm Inch es mm 0.68 17.3 1.71 43.4 0.76 19.3 1.91 48.5 0.78 19.8 2.10* 53.3* 0.82 20.8 2.25* 57.2*

Test Voltage, kV AC DC 7.0 21.0 7.0 21.0 7.0 21.0 7.0 21.0

**See Table 3-25. *These cables require extra-heavy-duty jackets (see 3.21).

Table 3-16 2,000 VOLTS OR LESS TYPE W AND G, FIVE- AND SIX-CONDUCTOR ROUND PORTABLE POWER CABLES ___Pow er Con du cto r___

Sing le Gro und in g _____Cond uct or ___

Insulation Thickness Size, AWG** 8 6 4 3 2 1

Inch .060 .060 .060 .060 .060 .080

mm 1.52 1.52 1.52 1.52 1.52 1.52

Size, AWG 8 7 5 4 3 2

_________Outsi de Diam eter__________

Five-Conductor Type W and G mm Inches 1.07 27.2 1.21 30.7 1.40 35.6 1.48 37.6 1.61 40.9 1.88 47.8

Min. Number Wires per Conductor 49 49 133 133 133 133

Six-Conductor Type W Inches 1.18 1.31 1.52 1.61 1.75 2.05*

Test Voltage, kV

mm 30.0 33.3 38.6 40.9 44.5 1.55*

AC 7.0 7.0 7.0 7.0 7.0 8.0

DC 21.0 21.0 21.0 21.0 21.0 24.0

* This cable requires an extra-heavy-duty jacket (see 3.21). **See Table 3-25.

Table 3-17 2,000 VOLTS OR LESS TYPE PG TWO- AND THREE-CONDUCTOR ROUND PORTAB LE POWER CABL ES Power Conductor

Size, AWG or k cm il ** 8 6 4 3 2 1

Insulation Thickness In ch mm 0.060 1.52 0.060 1.52 0.060 1.52 0.060 1.52 0.060 1.52 0.080 2.03

Each Grounding Conductor Min. Number Size, Wires per AWG Co nd uc to r 8 49 8 49 6 49 6 49 5 133 4 133

Outside Diameter TwoConductor Cables In ch es mm 0.84 21.3 0.93 23.6 1.08 27.4 1.17 29.7 1.27 32.3 1.44 36.6

Three-Conductor Cables In ch es mm 0.93 23.6 1.03 26.2 1.20 30.5 1.27 32.3 1.34 34.0 1.52 38.6

Test Voltage, kV AC DC 7.0 21.0 7.0 21.0 7.0 21.0 7.0 21.0 7.0 21.0 8.0 24.0

1/0 2/0 3/0 4/0

0.080 0.080 0.080 0.080

2.03 2.03 2.03 2.03

3 2 1 1/0

133 133 133 259

1.52 1.65 1.77 1.92

38.6 41.9 45.0 48.8

1.68 1.79 1.93 2.13*

42.7 45.5 49.0 54.1*

8.0 8.0 8.0 8.0

24.0 24.0 24.0 24.0

250

0.095

2.41

2/0

259

2.16*

54.9*

2.39*

60.7*

9.5

28.5

* These cables require extra-heavy-duty jackets (see 3.21). ** See Table 3-25.


ANSI/NEMA WC 58-2008 ICEA S-75-381-2008 Page 40 Table 3-18 2,000 VOLTS OR LESS TYPE PCG TWO- AND THREE-CONDUCTOR ROUND PORTABLE POWER CABL ES Power Conductor Size, AWG or kcmil** 8 6 4 3 2 1 1/0 2/0 3/0 4/0 250

Insulation Thickness Inch mm 0.060 1.52 0.060 1.52 0.060 1.52 0.060 1.52 0.060 1.52 0.080 2.03 0.080 2.03 0.080 2.03 0.080 2.03 0.080 2.03 0.095 2.41

Each Grounding Conductor Min. Number Size, Wires per AWG Conductor 8 49 8 49 6 49 6 49 5 133 4 133 3 133 2 133 1 133 1/0 259 2/0 259

Outside Diameter

Two-Conductor Cables Inches mm 0.94 23.9 0.98 24.9 1.10 27.9 1.20 30.5 1.29 32.8 1.44 36.6 1.52 38.6 1.65 41.9 1.77 45.0 1.92 48.8 2.16* 54.9*

Three-Conductor Cables Inches mm 1.03 26.2 1.18 30.0 1.29 32.8 1.31 33.3 1.39 35.3 1.52 38.3 1.68 42.7 1.79 45.5 1.93 49.0 2.13* 54.1* 2.39* 60.7*

Test Voltage, kV AC DC 7.0 21.0 7.0 21.0 7.0 21.0 7.0 21.0 7.0 21.0 8.0 24.0 8.0 24.0 8.0 24.0 8.0 24.0 8.0 24.0 9.5 28.5


Table 3-19 2,001 TO 5,000 VOLTS TYPE G THREE-CONDUCTOR ROUND PORTABL E POWER CABLES

Power Conductor Size, AWG Insulation or Thickness kcmi l** Inch mm 0.110 2.79 6 0.110 2.79 4 0.110 2.79 3 0.110 2.79 2 0.110 2.79 1 1/0 2/0 3/0 4/0

0.110 0.110 0.110 0.110

2.79 2.79 2.79 2.79

Grounding Conductor

Size, AWG** 10 8 8 8 7 6 5 4 3

Jacket Thickness Inch mm 0.155 3.94 0.170 4.3 0.170 4.3 0.190 4.8 0.190 4.8 0.205 0.205 0.205 0.220

5.2 5.2 5.2 5.2

Outside Diameter Inches mm 1.37 34.8 1.55 39.4 1.62 41.1 1.75 44.5 1.84 46.7 1.96 2.08* 2.20* 2.38*

49.8 52.8* 55.9* 60.5*

Test Voltage, kV AC DC 13.0 35.0 13.0 35.0 13.0 35.0 13.0 35.0 13.0 35.0 13.0 13.0 13.0 13.0

* These cables require extra-heavy-duty jackets (see 3.21). ** See Table 3-25


35.0 35.0 35.0 35.0

ANSI/NEMA WC 58-2008 ICEA S-75-381-2008 Page 41 Table 3-20 TYPE SH SINGLE-CONDUCTOR PORTABLE POWER CABLES* FOR 100 PERCENT INSULATION LEVEL ONLY Power Conductor Size, Insulation AWG Thickness, or Inch mm kcmil**

Jacket Thickness Inch

mm

Outside Diameter

Test Voltage, kV

Inches

mm

AC

DC

2,001 to 5,000 Volt s 6 4 3 2 1

0.110 0.110 0.110 0.110 0.110

2.79 2.79 2.79 2.79 2.79

0.110 0.110 0.110 0.125 0.125

2.79 2.79 2.79 3.18 3.18

0.77 0.82 0.85 0.92 0.96

19.6 20.8 21.6 23.4 24.4

13.0 13.0 13.0 13.0 13.0

35.0 35.0 35.0 35.0 35.0

1/0 2/0 3/0 4/0

0.110 0.110 0.110 0.110

2.79 2.79 2.79 2.79

0.140 0.140 0.155 0.155

3.56 3.56 3.94 3.94

1.04 1.07 1.18 1.24

26.4 27.2 30.0 31.5

13.0 13.0 13.0 13.0

35.0 35.0 35.0 35.0

250 300 350 500

0.120 0.120 0.120 0.120

3.05 3.05 3.05 3.05

0.155 0.170 0.170 0.190

3.94 4.32 4.32 4.83

1.32 1.37 1.47 1.62

33.5 34.8 37.3 41.1

13.0 13.0 13.0 13.0

35.0 35.0 35.0 35.0

5,001 to 8,000 Volt s 4 3 2 1

0.150 0.150 0.150 0.150

3.81 3.81 3.81 3.81

0.125 0.140 0.140 0.140

3.18 3.56 3.56 3.56

0.97 1.03 1.07 1.12

24.6 26.2 27.2 28.4

18.0 18.0 18.0 18.0

45.0 45.0 45.0 45.0

1/0 2/0 3/0 4/0

0.150 0.150 0.150 0.150

3.81 3.81 3.81 3.81

0.155 0.155 0.155 0.155

3.94 3.94 3.94 3.94

1.19 1.24 1.30 1.37

30.2 31.5 33.0 34.8

18.0 18.0 18.0 18.0

45.0 45.0 45.0 45.0

250 300 350 500

0.150 0.150 0.150 0.150

3.81 3.81 3.81 3.81

0.170 0.170 0.170 0.190

4.32 4.32 4.32 4.83

1.45 1.52 1.57 1.76

36.8 38.6 39.9 44.7

18.0 18.0 18.0 18.0

45.0 45.0 45.0 45.0

Table continued on next page * These cables require extra-heavy-duty jackets (see 3.21). ** See Table 3-25.


ANSI/NEMA WC 58-2008 ICEA S-75-381-2008 Page 42 Table 3-20 (Contin ued) TYPE SH SINGLE-CONDUCTOR PORTABLE POWER CABLES* FOR 100 PERCENT INSULATION LEVEL ONLY Power Conductor Size, AWG Insu lat io n Thi ck ness or Inch mm kcmil**

Jack et Thi ckn ess Inch

mm

Outs id e Diamet er

Test Vo lt age, kV

Inch

mm

AC

DC

8,001 to 15,000 Volts 2 1

0.210 0.210

5.33 5.33

0.155 0.155

3.94 3.94

1.22 1.26

31.0 32.0

27.0 27.0

70.0 70.0

1/0 2/0 3/0 4/0

0.210 0.210 0.210 0.210

5.33 5.33 5.33 5.33

0.155 0.155 0.170 0.170

3.94 3.94 4.32 4.32

1.31 1.36 1.46 1.52

33.3 34.5 37.1 38.6

27.0 27.0 27.0 27.0

70.0 70.0 70.0 70.0

250 300 350 500

0.210 0.210 0.210 0.210

5.33 5.33 5.33 5.33

0.170 0.170 0.190 0.190

4.32 4.32 4.83 4.83

1.57 1.64 1.73 1.88

39.9 41.7 43.9 47.8

27.0 27.0 27.0 27.0

70.0 70.0 70.0 70.0

1

0.295

7.49

0.170

4.32

1.49

37.8

38.0

100.0

1/0 2/0 3/0 4/0

0.295 0.295 0.295 0.295

7.49 7.49 7.49 7.49

0.170 0.170 0.170 0.190

4.32 4.32 4.32 4.83

1.54 1.59 1.64 1.74

39.1 40.4 41.7 44.2

38.0 38.0 38.0 38.0

100.0 100.0 100.0 100.0

250 300 350 500

0.295 0.295 0.295 0.295

7.49 7.49 7.49 7.49

0.190 0.190 0.190 0.205

4.83 4.83 4.83 5.21

1.79 1.86 1.91 2.10

45.5 47.2 48.5 53.3

38.0 38.0 38.0 38.0

100.0 100.0 100.0 100.0

15,001 to 25,000 Volt s

* These cables require extra-heavy-duty jackets (See 3.21). ** See Table 3-25.

Table 3-21 2,000 VOLTS OR LESS TYPE SHC-GC THREE-CONDUCTOR ROUND PORTABL E POWER CABL ES* FOR 100 PERCENT INSULATION LEVEL ONLY Power Conductor Size, AWG or kcmil** 6 4 3 2 1

Inch 0.070 0.070 0.070 0.070 0.080

mm 1.78 1.78 1.78 1.78 2.03

GroundCheck Conductor Size, AWG 10 10 10 10 8

1/0 2/0 3/0 4/0

0.080 0.080 0.080 0.080

2.03 2.03 2.03 2.03

8 8 8 8

0.190 0.205 0.205 0.220

4.83 5.21 5.21 5.59

1.85 1.99 2.11 2.29

47.0 50.5 53.6 58.2

8.0 8.0 8.0 8.0

24.0 24.0 24.0 24.0

250 300 350 500

0.095 0.095 0.095 0.095

2.41 2.41 2.41 2.41

8 8 8 8

0.220 0.235 0.235 0.265

5.59 5.97 5.97 6.73

2.46 2.63 2.75 3.14

62.5 66.8 69.9 79.8

9.5 9.5 9.5 9.5

28.5 28.5 28.5 28.5

Insu lat io n Thi ck ness

Jacket Thickness

Outside Diameter

Test Voltage, kV

Inch 0.155 0.155 0.170 0.170 0.190

mm 3.94 3.94 4.32 4.32 4.83

Inches 1.27 1.39 1.49 1.57 1.75

mm 32.3 35.3 37.8 39.9 44.5

AC 7.0 7.0 7.0 7.0 8.0

DC 21.0 21.0 21.0 21.0 24.0




Table 3-22 TYPE SHD AND SHD-GC THREE-CONDUCTOR ROUND PORTABL E POWER CABLES* FOR 100 PERCENT INSULATION LEVEL ONLY

Power Conductor Size, AWG Insulation Thickness or kcmil** Inch mm

GroundCheck Conductor Type SHDGC Size, AWG

Jacket Thickness Inch mm 2,000 Volts or Less 3.9 0.155 3.9 0.155 4.3 0.170 4.3 0.170 4.8 0.190

Outside Diameter

Test Voltage, kV

Inches

mm

AC

DC

1.29 1.40 1.51 1.59 1.76

2.8 35.6 38.4 40.4 44.7

7.0 7.0 7.0 7.0 8.0

21.0 21.0 21.0 21.0 21.0

1.86 2.00 2.13 2.31

47.2 50.8 54.1 58.7

8.0 8.0 8.0 8.0

24.0 24.0 24.0 24.0

2.51 2.68 2.81 3.19

63.8 68.1 71.4 81.0

9.5 9.5 9.5 9.5

28.5 28.5 28.5 28.5

1.56 1.68 1.78 1.87 1.95

39.6 42.7 45.2 47.5 49.5

13.0 13.0 13.0 13.0 13.0

35.0 35.0 35.0 35.0 35.0

6 4 3 2 1

0.070 0.070 0.070 0.070 0.080

1.78 1.78 1.78 1.78 2.03

10 10 10 10 8

1/0 2/0 3/0 4/0

0.080 0.080 0.080 0.080

2.03 2.03 2.03 2.03

8 8 8 8

250 300 350 500

0.095 0.095 0.095 0.095

2.41 2.41 2.41 2.41

8 8 8 8

6 4 3 2 1

0.110 0.110 0.110 0.110 0.110

2.79 2.79 2.79 2.79 2.79

8 8 8 8 8

1/0 2/0 3/0 4/0

0.110 0.110 0.110 0.110

2.79 2.79 2.79 2.79

8 8 8 8

0.220 0.220 0.235 0.235

5.6 5.6 6.0 6.0

2.08 2.20 2.36 2.50

52.8 55.9 59.9 63.5

13.0 13.0 13.0 13.0

35.0 35.0 35.0 35.0

250 300 350 500

0.120 0.120 0.120 0.120

3.05 3.05 3.05 3.05

8 8 8 8

0.250 0.250 0.265 0.280

6.4 6.4 6.7 7.1

2.69 2.81 2.95 3.31

68.3 71.4 74.9 84.1

13.0 13.0 13.0 13.0

35.0 35.0 35.0 35.0

0.190 0.205 0.205 0.220

4.8 5.2 5.2 5.6

5.6 0.220 6.0 0.235 6.0 0.235 6.7 0.265 2,001 to 5,000 Volts 4.7 0.185 4.7 0.185 5.2 0.205 5.2 0.205 5.2 0.205

Table continued on next page * These cables require extra-heavy-duty jackets (See 3.21). ** See Table 3-25. NOTE—See Table 3-25 for grounding conductor size.



Table 3-22 (Contin ued) TYPE SHD AND SHD-GC THREE-CONDUCTOR ROUND PORTABL E POWER CABL ES* FOR 100 PERCENT INSULATION LEVEL ONLY

Power Conductor Size, AWG or kcmi l**

Insulation Thickness Inch mm

GroundCheck Conductor Type SHDGC Size, AWG

Jacket Thickness Inch mm

Outside Diameter Inches mm


5,001 to 8,000 Volts 4 3 2 1

0.150 0.150 0.150 0.150

3.81 3.81 3.81 3.81

8 8 8 8

0.205 0.205 0.220 0.220

5.21 5.21 5.59 5.21

1.94 2.02 2.12 2.21

49.3 51.3 53.8 56.1

18.0 18.0 18.0 18.0

45.0 45.0 45.0 45.0

1/0 2/0 3/0 4/0

0.150 0.150 0.150 0.150

3.81 3.81 3.81 3.81

8 8 8 8

0.220 0.235 0.250 0.250

5.21 5.97 6.35 6.35

2.32 2.46 2.62 2.75

58.9 62.5 66.5 69.9

18.0 18.0 18.0 18.0

45.0 45.0 45.0 45.0

250 300 350 500

0.150 0.150 0.150 0.150

3.81 3.81 3.81 3.81

8 8 8 8

0.250 0.265 0.280 0.295

6.35 6.73 7.11 7.49

2.89 3.04 3.20 3.56

73.4 77.2 81.3 90.4

18.0 18.0 18.0 18.0

45.0 45.0 45.0 45.0

8,001 to 15,000 Volts 2 1

0.210 0.210

5.33 5.33

8 8

0.235 0.235

5.97 5.97

2.41 2.52

61.2 64.0

27.0 27.0

70.0 70.0

1/0 2/0 3/0 4/0

0.210 0.210 0.210 0.210

5.33 5.33 5.33 5.33

8 8 8 8

0.250 0.250 0.265 0.265

6.35 6.35 6.73 6.73

2.64 2.73 2.90 3.05

67.1 69.3 73.7 77.5

27.0 27.0 27.0 27.0

70.0 70.0 70.0 70.0

15,001 to 25,000 Volts 1

0.295

7.49

8

0.265

6.73

2.95

74.9

38.0

100.0

1/0 2/0 3/0 4/0

0.295 0.295 0.295 0.295

7.49 7.49 7.49 7.49

8 8 8 8

0.265 0.280 0.280 0.295

6.73 7.11 7.11 7.49

3.05 3.20 3.33 3.50

77.5 81.3 84.6 88.9

38.0 38.0 38.0 38.0

100.0 100.0 100.0 100.0

* These cables require extra-heavy-duty jackets (see 3-21). ** See Table 3-25. NOTE—See Table 3-25 for grounding conductor size.



Table 3-23 TYPE SHD-CGC THREE-CONDUCTOR PORTABL E POWER CABL ES* WITH THREE GROUNDING CONDUCTORS AND ONE GROUND-CHECK CONDUCTOR

Pow er Co nd uct or

Size, AWG or kcmil**


Each Gr oun di ng Co nd uct or Min. Number Size, Wires per AWG Conductor

Jacket Thickness Inch mm

Outside Diameter Inches mm


2,000 Volts or Less 8 6 4 3 2 1

0.070 0.070 0.070 0.070 0.070 0.080

1.78 1.78 1.78 1.78 1.78 2.03

12 10 8 8 8 7

49 49 49 49 49 49

0.155 0.155 0.155 0.170 0.170 0.190

3.94 3.94 3.94 4.32 4.32 4.83

1.26 1.38 1.49 1.60 1.68 1.85

32.0 35.1 37.8 40.6 42.7 47.0

7.0 7.0 7.0 7.0 7.0 8.0

21.0 21.0 21.0 21.0 21.0 24.0

1/0 2/0 3/0 4/0

0.080 0.080 0.080 0.080

2.03 2.03 2.03 2.03

6 5 4 3

133 133 133 133

0.190 0.205 0.205 0.220

4.83 5.21 5.21 5.59

1.95 2.09 2.21 2.36

49.5 53.1 56.1 59.9

8.0 8.0 8.0 8.0

24.0 24.0 24.0 24.0

250 300 350 500

0.095 0.095 0.095 0.095

2.41 2.41 2.41 2.41

2 1 1 2/0

133 133 133 259

0.220 0.235 0.235 0.265

5.59 5.97 5.97 6.73

2.51 2.68 2.81 3.19

63.8 68.1 71.4 81.0

9.5 9.5 9.5 9.5

28.5 28.5 28.5 28.5

6 4 3 2 1

0.110 0.110 0.110 0.110 0.110

2.79 2.79 2.79 2.79 2.79

10 8 8 8 7

49 49 49 49 49

0.185 0.185 0.205 0.205 0.205

4.70 4.70 5.21 5.21 5.21

1.62 1.73 1.82 1.91 1.98

41.1 43.9 46.2 48.5 50.3

13.0 13.0 13.0 13.0 13.0

35.0 35.0 35.0 35.0 35.0

1/0 2/0 3/0 4/0

0.110 0.110 0.110 0.110

2.79 2.79 2.79 2.79

6 5 4 3

133 133 133 133

0.220 0.220 0.235 0.235

5.59 5.59 5.97 5.97

2.10 2.20 2.36 2.50

53.3 55.9 59.9 63.5

13.0 13.0 13.0 13.0

35.0 35.0 35.0 35.0

250 300 350 500

0.120 0.120 0.120 0.120

3.05 3.05 3.05 3.05

2 1 1 2/0

133 133 133 259

0.250 0.250 0.265 0.280

6.35 6.35 6.73 7.11

2.69 2.81 2.95 3.31

68.3 71.4 74.9 84.1

13.0 13.0 13.0 13.0

35.0 35.0 35.0 35.0

2,001 to 5,000 Volts

* These cables require extra-heavy-duty jackets (see 3-21). ** See Table 3-24. NOTE—See 3.12.2 for Ground-check conductor



Table 3-24 JACKET THICKNESSES FOR TYPES AND SIZES OF ROUND PORTABLE CABLES NOT COVERED BY TABLES 3-6 THROUGH 3-23 AND 3-26 Calculated Diameter Under Jacket Inches

mm

Jacket Thickness

From

To

From

To

Inch

mm

0.000

0.325

0.0

8.3

0.060

1.524

0.326

0.430

8.3

10.9

0.080

2.032

0.431

0.540

10.9

13.7

0.095

2.413

0.541

0.640

13.7

16.3

0.110

2.794

0.641

0.740

16.3

18.8

0.125

3.175

0.741

0.850

18.8

21.6

0.140

3.556

0.851

1.100

21.6

27.9

0.155

3.937

1.101

1.320

28.0

33.5

0.170

4.318

1.321

1.550

33.6

39.4

0.190

4.826

1.551

1.820

39.4

46.2

0.205

5.207

1.821

2.050

46.3

52.1

0.220

5.588

2.051

2.300

52.1

58.4

0.235

5.969

2.301

2.550

58.4

64.8

0.250

6.350

2.551

2.800

64.8

71.1

0.265

6.731

2.801

3.100

71.1

78.7

0.280

7.112

3.101

3.500

78.8

88.9

0.295

7.493

3.501

3.950

88.9

100.3

0.310

7.874

3.951

4.450

100.4

113.0

0.330

8.382

4.451

5.000

113.1

127.0

0.345

8.763


Table 3-25 CONDUCTORS Grounding Conductors (Round Cables) Not Covered b y Tables 3-6 to 3-22 Number of Grounding Conductors 2

© C o p y r i g h a t 2 n 0 d 0 t h 8 e b y I n s t h u e l N a t e a d t i C o n a a b l l E e l E e n c t g r i i n c e a e l r M s a A n s u f s a o c c t u i a r t i e o r n s A s s o c i a t i o n

Power Conductors for Cables from Tables 3-6 thro ugh 3-23, 3-26, 3-27 Minimum Conductor

Number of

Conductor

Size, AWG

Wires per

Diameter

or kcmil

Conductor

Inches

2

3

Three-Conductor

Three-Conductor

4

Two-Conductor

Types SHC-GC

Types SHD

Type G Cables

and SHD-GC Cables

And G Cables

Four-Conductor Type G Cables

Size of

Minimum

Size of

Minimum

Size of

Minimum

Size of

Minimum

Grounding

Number of

Grounding

Number of

Grounding

Number of

Grounding

Number of

Conductors

Wires per

Conductors

Wires per

Conductors

Wires per

Conductors

Wires per

AWG

Conductor

AWG

Conductor

AWG

Conductor

AWG

Conductor 19

mm

8

49

0.166

4.22

10

19

10

19

12

19

12

6

49

0.208

5.28

10

19

10

19

10

19

12

19

4

49

0.203

5.16

8

49

8

49

8

49

10

19

3

49

0.295

7.49

8

49

7

49

8

49

10

19

2

133

0.335

8.51

7

49

6

133

8

49

9

49

1

133

0.377

9.58

6

133

5

133

7

49

8

49

1/0

133

0.423

10.74

5

133

4

133

6

133

7

49

2/0

133

0.474

12.04

4

133

3

133

5

133

6

133

3/0

259

0.536

13.61

3

133

2

133

4

133

5

133

4/0

259

0.601

15.27

2

133

1

133

3

133

4

133

250

259

0.653

16.59

2

133

1/0

259

2

133

3

133

300

259

0.714

18.14

1

133

1/0

259

1

133

3

133

350

259

0.773

19.63

1/0

259

2/0

259

1

133

2

259

400

259

0.825

20.96

1/0

259

3/0

259

1/0

259

1

259

450

259

0.876

22.25

2/0

259

3/0

259

1/0

259

1

259

500

259

0.922

23.42

2/0

259

4/0

259

2/0

259

1/0

259

550

427

0.969

24.61

...

...

...

...

...

...

...

...

600

427

1.013

25.73

...

...

...

...

...

...

...

...

650

427

1.053

26.75

...

...

...

...

...

...

...

...

700

427

1.094

27.79

...

...

...

...

...

...

...

...

28.73

...

...

...

...

...

...

...

...

...

...

...

...

...

...

...

750

427

1.131

800 900

427 427

1.169 1.239

29.69 31.47

... ...

...

...

...

...

...

...

...

1,000

427

1.307

33.20

…

…

…

…

…

…

…

…

Table 3-26 TYPE SHD-PCG CABLE

Nominal

© C o p y r i g h t a 2 n 0 d 0 t h 8 e b y I n s t h u e l N a t e a d t i C o n a a b l l E e l E e n c t g r i i n c e a e l r M s a A n s u f s a o c c t i u a t r

Center Grounding Conductor Condu ctor Size, AWG

Size, AWG

Min. No. of Strands

Insulation

Jacket

Outside

Nomin al Diameter Inch mm

___Thickness ___ Inch mm


____Diameter___ Inches mm


2,000 Volts or Less 1/0

3

133

0.295

7.49

0.080

2.03

0.205

5.21

2.05

52.1

8

24

2/0

2

133

0.335

8.51

0.080

2.03

0.220

5.59

2.25

57.2

8

24

3/0

1

133

0.337

8.56

0.080

2.03

0.220

5.59

2.32

58.9

8

24

4/0

1/0

259

0.423

10.74

0.080

2.03

0.250

6.35

2.57

65.3

8

24

2,001 to 5,000 Volts 3

5

133

0.234

5.94

0.110

2.79

0.205

5.21

1.94

49.3

13

35

2

4

133

0.263

6.68

0.110

2.79

0.205

5.21

2.03

51.6

13

35

1

4

133

0.263

6.68

0.110

2.79

0.220

5.59

2.12

53.8

13

35

1/0

3

133

0.295

7.49

0.110

2.79

0.220

5.59

2.26

57.4

13

35

2/0

2

133

0.335

8.51

0.110

2.79

0.220

5.59

2.40

61.0

13

35

3/0

1

133

0.377

9.58

0.110

2.79

0.235

5.97

2.58

65.5

13

35

4/0

1/0

259

0.423

10.74

0.110

2.79

0.250

6.35

2.76

70.1

13

35

Table 3-27

A N S I I / C N E E A M S A -7 W 5 C 3 P 8 5 a 1 8 g -2 -2 e 0 0 4 0 0 7 8 8

P I A a C N g E e A S I 4 S / N 8 -7 E 5 M - A 3 8 W 1 -2 C 0 5 0 8 8 -2 0 0 8

Table 3-26 TYPE SHD-PCG CABLE

Nominal

© C o p y r i g h t a 2 n 0 d 0 t h 8 e b y I n s t h u e l N a t e a d t i C o n a a b l l E e l E e n c t g r i i n c e a e l r M s a A n s u f s a o c c t i u a r t i e o r n s A s s o c i a t i o n

Center Grounding Conductor Condu ctor Size, AWG

Size, AWG

Min. No. of Strands

Insulation

Jacket

Outside

Nomin al Diameter Inch mm



____Diameter___ Inches mm


2,000 Volts or Less 1/0

3

133

0.295

7.49

0.080

2.03

0.205

5.21

2.05

52.1

8

24

2/0

2

133

0.335

8.51

0.080

2.03

0.220

5.59

2.25

57.2

8

24

3/0

1

133

0.337

8.56

0.080

2.03

0.220

5.59

2.32

58.9

8

24

4/0

1/0

259

0.423

10.74

0.080

2.03

0.250

6.35

2.57

65.3

8

24

2,001 to 5,000 Volts 3

5

133

0.234

5.94

0.110

2.79

0.205

5.21

1.94

49.3

13

35

2

4

133

0.263

6.68

0.110

2.79

0.205

5.21

2.03

51.6

13

35

1

4

133

0.263

6.68

0.110

2.79

0.220

5.59

2.12

53.8

13

35

1/0

3

133

0.295

7.49

0.110

2.79

0.220

5.59

2.26

57.4

13

35

2/0

2

133

0.335

8.51

0.110

2.79

0.220

5.59

2.40

61.0

13

35

3/0

1

133

0.377

9.58

0.110

2.79

0.235

5.97

2.58

65.5

13

35

4/0

1/0

259

0.423

10.74

0.110

2.79

0.250

6.35

2.76

70.1

13

35

Table 3-27 2,000 VOLTS OR LESS TYPE SHD-FLAT THREE CONDUCTOR PORTABLE POWER CABLE* WITH TWO GROUNDING CONDUCTORS Power Conductor Size AWG 2/0

*

Min. Number of wires per conductor 133

Each Grounding Conductor

Insulation thickness Inch .080

Size, AWG 3

Min. Number of wires per conductor 133

Nominal Outside Diameter Jacket Thickness, Inch .205

Test Voltage, kV

Minor, Inches

Major, Inches

AC

DC

1.205

2.970

8

---

This cable requires an extra-heavy duty jacket (see 3. 21).


SECTION 4 CONSTRUCTIONS OF MINE POWER FEEDER CABLE 4.1

SCOPE

This section covers crosslinked polyethylene and ethylene propylene rubber insulated, shielded, crosslinked, or thermoplastic jacketed cables in sizes 6 AWG through 500 kcmil for use as connections between units of mine distribution systems at nominal AC voltages of 2,001 to 25,000 volts at 100 or 133 percent insulation level. These cables shall be one of the following types: Type MP Type MP-GC

Three power conductors and three grounding conductors Three power conductors and two grounding conductors and one ground-check conductor. o

o

The insulations are suitable for conductor temperatures not exceeding 90 C (194 F) for normal operation, o o o o 130 C (266 F) for emergency overload conditions and 250 C (482 F) for short-circuit conditions.



SECTION 4 CONSTRUCTIONS OF MINE POWER FEEDER CABLE 4.1

SCOPE

This section covers crosslinked polyethylene and ethylene propylene rubber insulated, shielded, crosslinked, or thermoplastic jacketed cables in sizes 6 AWG through 500 kcmil for use as connections between units of mine distribution systems at nominal AC voltages of 2,001 to 25,000 volts at 100 or 133 percent insulation level. These cables shall be one of the following types: Type MP Type MP-GC

Three power conductors and three grounding conductors Three power conductors and two grounding conductors and one ground-check conductor. o

o

The insulations are suitable for conductor temperatures not exceeding 90 C (194 F) for normal operation, o o o o 130 C (266 F) for emergency overload conditions and 250 C (482 F) for short-circuit conditions. 4.2

GENERAL REQUIREMENTS

The requirements of Sections 2 and 3 shall be met where applicable. Ampacities and minimum bending radii are given in Annex F and I respectively. 4.3

CONDUCTORS

4.3.1

Power Condu cto rs

Power conductors shall meet the requirements of Section 2. Aluminum conductors shall be Class B, C, or D. Power conductors used for borehole and shaft cables shall have a minimum factor of safety of 7 when calculated by the formula F = AT/W. If the minimum factor of safety as calculated by the formula is less than 7, medium hard-drawn copper shall be used. In no case shall the factor of safety be less than 7. Where:

F =

AT W

F = Factor of safety A = Area of the three power conductors in square inches T = Tensile strength of conductor in pounds per square inch ( psi) psi Ann ealed c opp er Medium hard c opper 1350 aluminum

24,000 40,000 17,000

W = Weight of the length of the cable in pounds. The conductor size shall be in accordance with Table 4-1. When the size of medium hard-drawn copper power conductors is determined in accordance with Sectio n 2, the DC resistance shall not exceed by more than 2 percent the values given in Table 4-8.



4.3.2

Condu ctor Stress Contro l Layer

The conductor stress control layer in accordance with Section 3.14 shall be applied on each power conductor. 4.3.3

Grounding Conductors

Grounding conductors shall be annealed copper meeting the requirements of Section 2. The minimum size of each grounding conductor shall be in accordance with Table 4-1. 4.3.4


The ground check conductor shall be annealed copper meeting the requirements of Section 2. The minimum size of each ground check conductor shall be in accordance with Table 4-1. 4.4

INSULATION

4.4.1

Power Condu cto r

The insulation shall be of a type and meeting the requirements specified in Table 3-1. The average thickness shall not be less than specified in Tables 4-2, 4-3, 4-4, and 4-5. The minimum thickness shall not be less than 90 percent of the specified average value. 4.4.2


The insulation shall be of a type and meeting the requirements specified in Table 3-2. The average thickness shall not be less than 0.030 inch for conductor size 10 AWG and not less than 0.045 inch for conductor size 8 AWG and larger. The minimum thickness shall not be less than 90 percent of the specified average value. 4.5

INSULATION SHIELDING

The insulation shield shall consist of a conducting nonmetallic covering directly over the insulation and a nonmagnetic metal component directly over the nonmetallic covering. 4.5.1

Nonmetallic Covering

A conducting nonmetallic covering shall be either in the form of a tape or an extruded layer. 4.5.1.1

Extrud ed Condu ctin g Covering

If an extruded conducting covering is used, it shall meet the following requirements:

Minimum elongation at rupture in percent after air oven test (see 6.4.15) o o at 100 C 1 C for 48 hours o o at 121 C 1 C for 168 hours Brittl eness temperature, not warmer than (see 6.4.15) Maximum volume resistivity in ohmmeters (see 6.14) o o at 75 C 1 C o o at 90 C 1 C

Thermoplastic

Crosslinked

100 … o -10 C

… 100 o -10 C

500 …

… 500

NOTE— When rating the emergency temperature operating of thermoplastic insulation shielding systems, caution must be used to consider the thermal deformation characteristics of the insulation shield material.


ANSI/NEMA WC 58-2008 ICEA S-75-381-2008 Page 51 The tension necessary to remove an extruded insulation shield from cable at room temperature shall be not less than 3 pounds for cables rated 2,001 through 25,000 volts (see 6.15).

4.5.1.2

Condu ctin g Tape

A conducting non-metallic tape shall have a maximum DC resistance at room temperature of 10,000 ohms per unit square when tested in accordance with ASTM D 4496. 4.5.2

Metal Compon ent

An annealed coated or uncoated copper component consisting of a tape or tapes, a braid, or a wire shield shall be applied over the conducting nonmetallic covering. The metal component shall be electrically continuous throughout each cable length and shall be in contact with the nonmetallic covering. 4.5.2.1

Metal Tape Shield

Metal tape(s) shall be of copper at least 0.0025 inch thick or of other nonmagnetic metal tape(s) equivalent in conductance. If a single tape is used it must have a minimum 10 percent overlap. 4.5.2.2

Metal Braid Shield

When shielding is applied in the form of a metal braid, the coverage shall be not less than 84 percent as determined by the following formula: 2

Percent coverage = 100 (2F - F ) Where: F =

NPd sin α

Tan α =

2 π DP C

α = angle of braid with axis of cable

d C D N P 4.5.2.3

= diameter of individual braid wires in inches = number of carriers = diameter under shield in inches = number of wires per carrier = picks per inch

Metal Wire Shield

If the shielding is applied in the form of a serving or wrap, the coverage shall be not less than 60 percent as determined by the following formula: PercentCoverage =

Nd ×100 W

Where: N = Number of parallel wires d =Diameter of individual wires in inches W = π D cos α D = Diameter under shield in inches α = Angle between serving wires and axis of cable Tan α = π

D C

C = Pitch of serving in inches © Copyright 2008 by the National Electrical Manufacturers Association and the Insulated Cable Engineers Association


4.6

IDENTIFICATION*

Power conductors shall be identified as black, white, and red. Ground-check conductors shall be identified as yellow. *Note that the above conductor identification may not comply with applicable CSA standards.

4.7

CONDUCTOR ASSEMBL Y

The shielded power conductors together with grounding conductors, the ground-check conductor (when required), and any necessary fillers shall be cabled with a left hand lay. The grounding conductors shall be in contact with the metallic shields. The ground- check conductor of the Type MP-GC cables shall be placed between the black and white conductors. A binder tape or threads may be used over the assembly. The maximum length of lay shall not exceed 35 times the diameter over the individual shielded conductor. 4.8

JACKET

A crosslinked jacket that meets the requirements of Table 3-4 or a thermoplastic jacket that meets the requirements of Table 4-9 shall be applied over the conductor assembly. The average thickness of the jacket shall be not less than that given in Table 4-7 and the minimum thickness shall be not less than 80 percent of these values. 4.9

OUTSIDE DIAMETER

The outside diameter of the completed cable shall be within plus 8 and minus 5 percent of the values given in Tables 4-2, 4-3, 4-4, and 4-5. 4.10

TESTS

The cable shall be tested in accordance with Section 6 and shall meet the requirements specified in this standard. (a) The completed cable shall pass the Cold Bend Test at -10°C, per Section 6.11. (b) Cables with thermoplastic jackets shall pass the Heat Shock Test per Section 6.10. (c) The completed cable shall comply with the partial discharge extinction level specified in Table 46. (d) Each length of completed cable rated 5 kV or less shall withstand for 5 minutes, without immersion in water, the AC test voltage specified in Table 4-2. (e) Each length of completed cable rated above 5 kV shall withstand, without immersion in water, the AC test voltage specified in Table 4-3, 4-4, and 4-5 for 5 minutes. (f) The power conductors in a completed cable shall comply with the requirements for insulation resistance after the high voltage AC test. (g) Each insulated ground check or control conductor shall withstand prior to assembly either the AC or DC spark test voltages or the AC or DC test voltages applied for 5 minutes after 6 hours immersion in water. The test voltages shall be as given in 3.22.4.5. (h) A voltage test on the insulated ground-check conductor in the completed cable shall be made between the ground-check conductor and the grounding conductors by applying an alternating current voltage of 3.0 kV for 15 seconds. The insulation resistance test is not required. © Copyright 2008 by the National Electrical Manufacturers Association and the Insulated Cable Engineers Association


Table 4-1 CONDUCTOR SIZES Copper Grounding Conductors Size of Power Conductors, AWG or k cmi l Copper Alumi num 6 4 4 2 2 1/0 1 2/0

Copper

Type MP Cables, Size in Each Inter sti ce, AWG 10 8 8 7

Type MP-GC Cables, Size in Each of Two Inter sti ces, AWG 10 8 6 5

Groun d-Check Conductor, Min imu m Size, AWG 10 8 8 8

1/0 2/0 3/0 4/0

3/0 4/0 250 350

6 5 4 3

4 3 2 1

8 8 8 8

250 300 350 400 450 500

400 450 500 ... ... ...

2 1 1 1/0 1/0 2/0

1/0 1/0 2/0 3/0 3/0 4/0

8 8 8 8 8 8

Table 4-2 INSULATION THICKNESSES AND OUTSIDE DIAMETERS—2,001 TO 5,000 VOLTS* 100 AND 133** PERCENT INSULATION LEVELS Conductor Size, AWG or kcmil 6 4 2 1


Outside Diameter

Inch

mm

Inches

mm

0.090 0.090 0.090 0.090

2.29 2.29 2.29 2.29

1.21 1.32 1.45 1.53

30.7 33.5 36.8 38.9

Test Voltage, AC kV 18 18 18 18

1/0 2/0 3/0 4/0

0.090 0.090 0.090 0.090

2.29 2.29 2.29 2.29

1.63 1.74 1.88 2.00

41.4 44.2 47.8 50.8

18 18 18 18

250 300 350 400 450 500

0.090 0.090 0.090 0.090 0.090 0.090

2.29 2.29 2.29 2.29 2.29 2.29

2.13 2.25 2.35 2.45 2.55 2.64

54.1 57.2 59.7 62.2 64.8 67.1

18 18 18 18 18 18

* The actual operating voltage shall not exceed the rated circuit voltages by more than (a) 5 percent during continuous operation or (b) 10 percent during emergencies lasting not more than 15 minutes. ** Unless otherwise indicated, the cable will be rated at 100 percent insulation level.


ANSI/NEMA WC 58-2008 ICEA S-75-381-2008 Page 54 Table 4-3 INSULATION THICKNESSES A ND OUTSIDE DIAMETERS 5,001 to 8,000 VOLTS* 100 Percent Insulation Level Conductor Size, AWG or kcmil 6 4 2 1


Outside Diameter

133 Percent Insulation Level

Inch

mm

Inches

mm

AC Test Voltage kV


0.115 0.115 0.115 0.115

2.92 2.92 2.92 2.92

1.33 1.43 1.55 1.65

33.8 36.3 39.4 41.9

23 23 23 23

0.140 0.140 0.140 0.140

1/0 2/0

0.115 0.115

2.92 2.92

1.75 1.88

44.5

3/0 4/0

0.115 0.115

2.92 2.92

2.00 2.12

47.8 50.8 53.9

23 23

250 300 350 400 450 500

0.115 0.115 0.115 0.115 0.115 0.115

2.92 2.92 2.92 2.92 2.92 2.92

2.25 2.35 2.46 2.57 2.66 2.75

57.2 59.7 62.5 65.3 67.6 69.9

Outsi de Diameter Inches

mm

AC Test Voltage kV

3.56 3.56 3.56 3.56

1.45 1.54 1.68 1.78

36.8 39.1 42.7 45.2

28 28 28 28

0.140 0.140

3.56 3.56

1.90 2.00

48.3

23 23

0.140 0.140

3.56 3.56

2.12 2.25

50.8 53.9 57.2

28 28

23 23 23 23 23 23

0.140 0.140 0.140 0.140 0.140 0.140

3.56 3.56 3.56 3.56 3.56 3.56

2.35 2.48 2.58 2.70 2.85 2.93

59.7 63.0 65.5 68.6 72.4 74.4

28 28 28 28 28 28 28 28

* The actual operating voltage shall not exceed the rated circuit voltage by more than (a) 5 percent during continuous operation or (b) 10 percent during emergencies lasting not more than 15 minutes.

Table 4-4 INSULATION THICKNESSES A ND OUTSIDE DIAMETERS 8,001 TO 15,000 VOLTS* 100 Percent Insulation Level Conductor Size, AWG or kcmil 2 1


Outside Diameter

133 Percent Insulation Level

Inch 0.175 0.175

mm 4.45 4.45

Inches 1.88 1.98

mm 47.8 50.3

AC Test Voltage kV 35 35

Insulation Thickness Inch mm 0.215 5.46 0.215 5.46

1/0 2/0 3/0 4/0

0.175 0.175 0.175 0.175

4.45 4.45 4.45 4.45

2.05 2.15 2.26 2.40

52.1 54.6 57.4 61.0

35 35 35 35

0.215 0.215 0.215 0.215

250 300 350 400 450 500

0.175 0.175 0.175 0.175 0.175 0.175

4.45 4.45 4.45 4.45 4.45 4.45

2.50 2.64 2.75 2.92 3.00 3.10

63.5 67.1 69.9 74.2 76.2 78.7

35 35 35 35 35 35

0.215 0.215 0.215 0.215 0.215 0.215

Outsi de Diameter Inches 2.11 2.20

mm 53.7 55.9

AC Test Voltage kV 43 43

5.46 5.46 5.46 5.46

2.30 2.42 2.53 2.65

58.4 61.5 64.3 67.3

43 43 43 43

5.46 5.46 5.46 5.46 5.46 5.46

2.75 2.86 3.01 3.09 3.17 3.29

69.9 72.7 76.5 78.5 80.5 83.5

43 43 43 43 43 43

* The actual operating voltage shall not exceed the rated circuit voltages by more than (a) 5 percent during continuous operation or (b) 10 percent during emergencies lasting not more than 15 minutes.



Table 4-5 INSULATION THICKNESSES A ND OUTSIDE DIAMETERS 15,001 TO 25,000 VOLTS* 100 Percent Insulation Level Conductor Size, AWG or kcmil 2 1 1/0 2/0 3/0 4/0 250 300 350 400 450 500

Insulation Thickness Inch 0.260 0.260 0.260 0.260 0.260 0.260 0.260 0.260 0.260 0.260 0.260 0.260

Outside Diameter

mm 6.60 6.60 6.60 6.60 6.60 6.60 6.60 6.60 6.60 6.60 6.60 6.60

Inches 2.34 2.42 2.51 2.60 2.71 2.89 2.99 3.10 3.21 3.33 3.42 3.50

mm 59.4 61.5 63.7 66.1 68.9 73.5 76.0 78.7 81.7 84.6 86.9 88.8

133 Percent Insulation Level AC Test Voltage kV 52 52 52 52 52 52 52 52 52 52 52 52

Insulation Thickness Inch mm 0.345 8.76 0.345 8.76 0.345 8.76 0.345 8.76 0.345 8.76 0.345 8.76 0.345 8.76 0.345 8.76 0.345 8.76 0.345 8.76 0.345 8.76 0.345 8.76

Outsi de Diameter Inches 2.61 2.70 2.79 2.95 3.06 3.18 3.28 3.39 3.51 3.62 3.71 3.80

mm 66.4 68.6 70.8 74.8 77.7 80.8 83.4 86.1 89.2 91.9 94.2 96.4

AC Test Voltage kV 69 69 69 69 69 69 69 69 69 69 69 69

* The actual operating voltage shall not exceed the rated circuit voltages by more than (a) 5 percent during continuous operation or (b) 10 percent during emergencies lasting not more than 15 minutes.

Table 4-6 PARTIAL DISCHARGE EXTINCTION VOLTAGE Voltage Level (kV)

Partial Discharge Extinction Voltage (kV) 100 % 133% 4 5 6 8 11 15 19 26

5 8 15 25

Table 4-7 OVERALL JACK ET THICKNESS Calculated Diameter of Cable Under Jacket Inches

Jacket Thickness Inch

Calculated Diameter of Cable Under Jacket mm

Jacket Thickness Mm

1.500 or less 1.501-2.500 2.501 or g reater

0.110 0.140 0.170

38.1 or less 38.2 – 63.5 63.6 or greater

2.79 3.56 4.32


ANSI/NEMA WC 58-2008 ICEA S-75-381-2008 Page 56 Table 4-8 NOMINAL DC RESISTANCE OF MEDIUM HARD-DRAWN COATED AND UNCOA TED COPPER CONDUCTORS CONCENTRIC STRANDED, CLASS B AND C

Conductor Size, AWG or k cmi l

Class of Stran di ng

Uncoated Copper 20 C 25 C Ohms per Ohms per 1,000 Feet 1,000 Feet

and C and C and C and C

0.436 0.274 0.172 0.137

0.444 0.279 0.176 0.139

0.417 0.262 0.166 0.131

0.425 0.267 0.168 0.133

1/0 2/0 3/0 4/0 4/0

B and C B and C B and C B C

0.108 0.0859 0.0681 0.0536 0.0540

0.110 0.0876 0.0695 0.0547 0.0551

0.104 0.0822 0.0652 0.0517 0.0517

0.106 0.0838 0.0665 0.0527 0.0527

250 300 350 400 400

B and C B and C B and C B C

0.0457 0.0381 0.0327 0.0284 0.0286

0.0466 0.0389 0.0333 0.0289 0.0292

0.0438 0.0365 0.0313 0.0274 0.0274

0.0446 0.0372 0.0319 0.0279 0.0279

450 450 500 500

B C B C

0.0252 0.0254 0.0227 0.0229

0.0257 0.0259 0.0231 0.0233

0.0243 0.0243 0.0219 0.0219

0.0248 0.0248 0.0223 0.0223

6 4 2 1

B B B B

Coated Copper 20 C 25 C Ohms per Ohms per 1,000 Feet 1,000 Feet

Table 4-8 (metric) NOMINAL DC RESISTANCE OF MEDIUM HARD-DRAWN COATED AND UNCOATED COPPER CONDUCTORS CONCENTRIC STRANDED, CLASS B AND C Coated Copper Conductor Size, AWG or k cmi l 6 4 2 1 1/0 2/0 3/0 4/0 4/0 250 300 350 400 400 450 450 500 500

Class of Stran di ng B B B B B B B

and C and C and C and C and C and C and C B C B and C B and C B and C B C B C B C

20 C millio hms per Meter

25 C millio hms per meter

1.430 0.899 0.564 0.449 0.354 0.2818 0.2234 0.1758 0.1771 0.1499 0.1250 0.1073 0.0932 0.0938 0.0827 0.0833 0.0745 0.0751

1.456 0.915 0.577 0.456 0.361 0.2873 0.2280 0.1794 0.1807 0.1528 0.1276 0.1092 0.0948 0.0958 0.0843 0.0850 0.0758 0.0764

Uncoated Copper 20 C 25 C milli ohms per millio hms per meter Meter 1.368 0.859 0.544 0.430 0.341 0.2696 0.2139 0.1696 0.1696 0.1437 0.1197 0.1027 0.0899 0.0899 0.0797 0.0797 0.0718 0.0718


1.394 0.876 0.551 0.436 0.348 0.2749 0.2181 0.1729 0.1729 0.1463 0.1220 0.1046 0.0915 0.0915 0.0813 0.0813 0.0731 0.0731

ANSI/NEMA WC 58-2008 ICEA S-75-381-2008 Page 57 Table 4-9 THERMOPLASTIC JACKET REQUIREMENTS Polyvinyl Chloride

Chlorinated Thermoplastic Polyethylene

Thermoplastic Polyurethane

Tensile Strength, minimu m, psi Elongation at Rupture, minimum, percent

1,500 100

1,400 150

3,700 400

Air Oven Ag in g o Aft er Con di ti on in g at C Hours

100 120

121 168

100 168

85

85

50

60

50

75

70 4

100 18

121 18

80

60

60

60

60

60

50

25

-

Initial Physical Properties

o

1C

Tensile Strength, minimum, percent of unaged value Elongation, minimum, percent of unaged value Oil Immersion o Aft er Con di ti on in g at C Hours

o

1C

Tensile Strength, minimum, percent of unaged value Elongation, minimum, percent of unaged value o

Heat Distortion, 121 C maximum, percent

o

1 C



Section 5 SPECIAL CONSTRUCTIONS 5.1

PORTABL E ARC-WELDING CABL ES

5.1.1

Scope

This section covers single-conductor portable electrode holder cables with a heavy-duty or medium-duty jacket. These cables are distinguished by the requirements for the jackets given in 5.1.4. They are of the following types: TYPE A TYPE B

-

HEAVY DUTY MEDIUM DUTY

NOTE—The cables covered by this standard are not voltage rated. They are intended for use as arc welding leads between the power source and hand welding electrode at operating potentials up to 100 volts.

5.1.2

Conductor

The conductors shall meet the applicable requirements of Section 2. The conductors shall be rope-lay stranded with bunch-stranded members of annealed copper. The number of wires in the completed conductor shall be not less than 98 percent of the values given in Table 5-3. The nominal size of the individual wires in the conductor shall be 30 AWG (Class K) or 34 AWG (Class M). 5.1.3

Separator

A separator shall be applied directly over the conductors. 5.1.4

Jackets

5.1.4.1

Heavy-Duty Jack et (Type A)

The jacket shall be one of the materials listed in Table 5-1 which, when tested in accordance with Section 6, shall meet the applicable requirements. The jackets shall be applied in one or two layers. If reinforcement is required in two-layer jackets, it shall be applied between the two layers. The cable shall be capable of passing the vertical flame test as described in 5.1.6. 5.1.4.2

Medium-Duty Jackets (Type B)

The jacket shall be one of the materials listed in Table 5-2 which, when tested in accordance with Section 6, shall meet the applicable following requirements. The cable shall be capable of passing the vertical flame test as described in 5.1.6. 5.1.5

Number of Wires, Outsid e Diameters, and Diameter Tolerances

The nominal number of wires, outside diameters, and diameters tolerances shall be as given in Table 5-3. 5.1.6

Flame Test Requirements

This section describes the flame test requirements for portable arc-welding cables described within this standard. 5.1.6.1

Test App aratus

Test apparatus shall consist of the following: (a) Chamber of sheet metal 12 inches (305 mm) wide, 14 inches (356 mm) deep, and 24 inches (610 mm) high, which is open at the top, and which is provided with means for clamping the test specimen at the upper end and supporting in a vertical position. © Copyright 2008 by the National Electrical Manufacturers Association and the Insulated Cable Engineers Association


(b) Means for adjusting the position of the test specimen. (c) 4-pound (1.8 kg) weight (for 8 AWG) to be attached to the lower end of the test specimen to keep it taut. (d) Tirrill burner with an attached pilot light and mounted on a 20-degree angle block. The burner shall have a nominal bore of 3/8 inch (9.5 mm) and a length of approximately 4 inches above the primary air inlets. (e) Adjustable steel angle (jig) attached to the bottom of the chamber to insure the correct location of the burner with relation to the test specimen. (f) Gas (a supply of ordinary illuminating gas at normal pressure). (g) Watch or clock with a hand which makes one complete revolution per minute. (h) Flame indicators consisting of strips of gummed Kraft paper having a nominal thickness of 5 mils (0.127 mm) and a width of ½ inch (12.7 mm).* (i) Untreated surgical cotton. ________________________

*The paper used for the indicators is known to the trade as 60-pound stock and is material substantially the same as that described in Federal Specification UU-T-111 covering “Tape, Paper, Gummed (Kraft).” 5.1.6.2

Test Setup

The test shall be made in a room, which is generally free from draft of air, although a ventilated hood may be used if air currents do not affect the flame. One end of the test specimen, approximately 22 inches (559 mm) in length, shall be clamped in position at the upper end of the chamber, and (for 8 AWG) the 4pound (1.8 kg) weight attached to keep the specimen taut. A paper indicator shall be applied to the specimen so that the lower edge is 10 inches (254 mm) above the point at which the inner blue cone of the test flame is to be applied. The indicator shall be wrapped once around the specimen, with the gummed side toward the conductor. The ends shall be pasted evenly together and shall project ¾ inch (19.0 mm) from the specimen on the opposite side of the specimen to that to which the flame is to be applied. The paper tab shall be moistened only to the extent necessary to permit proper adhesion. The height of the flame with the burner vertical shall be adjusted to 5 inches (127 mm), with an i nner blue cone 1 ½ inches (38.1 mm) high. The temperature at the tip of the inner blue cone shall be not less that 816°C (1500°F). A flat horizontal layer of untreated surgical cotton shall be placed on the floor of the chamber and centered directly under the specimen. The upper surface of the cotton shall be no more than 9 ½ inches (241 mm) from the point at which the inner blue cone touches the cable surface. 5.1.6.3

Test Proc edur e

The burner, with only the pilot lighted, shall be placed in front of the sample so that the vertical plane through the stem of the burner includes the axis of the wire or cable. The angle block shall rest against the jig, which shall be adjusted so that there is a distance of 1.5 inches (38 mm) between the tip of the stem and the surface of the specimen. The valve supplying the gas to the burner properly shall then be opened and the flame automatically applied to the sample. This valve shall be held open for 60 seconds, closed for 30 seconds, etc. for a total of three 60 second flame applications. During each application of flame, the position of the burner or specimen shall be adjusted, as necessary, so that the tip of the inner blue cone just touches the surface of the specimen. 5.1.6.4

Test Requirements

The specimen shall be considered to have failed this test if any of the following occurs: (a) More than 25 percent of the extended portion of the indicator is burned. (b) The specimen continues to burn for more than one minute after the third flame application. (c) The surgical cotton is ignited.


ANSI/NEMA WC 58-2008 ICEA S-75-381-2008 Page 60 Table 5-1 HEAVY-DUTY JACKETS (TYPE A)

SBR

Neoprene

NBR PVC*

CPE, CrossLin ked

EP

CSPE

3,500 24.1

1,800 12.4

1,800 12.4

1,800 12.4

1,800 12.4

1,800 12.4

1,800 12.4

500 3.45 500 15

--300 20

500 3.45 300 20

500 3.45 300 30

500 3.45 300 30

500 3.45 250 --

500 3.45 300 30

40 7.01

---

---

---

---

---

---

--

--

50

50

85

75

85

--

--

50

50

55

75

65

After air oven test at 70°C ±1°C for 168 hours Tensile strength, minimum psi MPa Elongation at rupture, minimum, percent

----

1,600 11.0 250

----

----

----

----

----

After air pressure heat test at 127°C ±1°C for 20 hours Tensile strength and Elongation at rupture, Minimum, percent of unaged value

--

--

--

50

--

--

--

2,500 17.2

1,600 11.0

---

---

---

---

---

400

250

--

--

--

--

--

After oxygen pressure test at 80°C ±1°C for 168 hours Tensile strength, and Elongation at rupture, Minimum, percent of unaged value

--

--

--

50

--

--

--

After oil immersion test at 121°C ±1°C for 18 hours Tensile strength, and Elongation at rupture, Minimum percent of unaged value

--

--

60

60

60

--

60

Physical requirements Tensile strength, minimum psi MPa Tensile Stress at 200 percent elongation, minimum psi MPa Elongation at rupture, minimum, percent Set, Maximum, percent Tear, resistance, minimum Pounds per inch kN/m Agi ng r equi remen ts After air oven test at 100°C ±1°C for 168 hours Tensile strength, minimum, percent of Unaged value Elongation at rupture, minimum Percentage of unaged value

After oxygen pressure test at 70°C ±1°C for 96 hours Tensile strength, minimum, psi MPa Elongation at rupture, minimum, Percent

Natural Rubber

* Suitable for a minimum temperature of minus 10°C (plus 14°F)



Table 5-2 MEDIUM-DUTY JACKETS (TYPE B)

SBR

Neoprene

NBR PVC*

CPE, CrossLinked

Physical requirements Tensile strength, minimum psi MPa Elongation at rupture, minimum, Percent Set, maximum percent

1,200 8.27 250

1,200 8.27 250

1,500 10.3 250

1,500 10.3 300

1,200 8.27 150

1,200 8.27 250

--

20

30

35

--

30

Agi ng r equi remen ts Aft er air oven test at 100°C ±1°C For 168 hours Tensile strength, minimum, Percent of unaged value Elongation at rupture, minimum, percent of unaged value

--

50

50

85

75

85

--

50

50

55

75

65

1,000 6.89 100

----

----

----

----

----

--

--

50

--

--

--

--

--

50

--

--

--

--

--

--

--

--

--

--

60

60

60

--

60

Aft er ox ygen pr essu re tes t at 70°C ± 1°C for 48 hours Tensile strength, minimum, psi MPa Elongation at rupture, minimum, Percent Aft er ox ygen pr essu re tes t at 80°C ± 1°C for 168 hours Tensile strength and Elongation at rupture, minimum percent of unaged value Aft er air pr essu re heat test at 127°C ± 1°C for 20 hours Tensile strength and Elongation at rupture, minimum, percent of unaged value Aft er oi l i mmer si on t est at 121°C ± 1°C for 18 hours Tensile strength and Elongation at rupture, minimum percent of unaged value

EP

CSPE

* Suitable for a minimum temperature of minus 10°C (plus 14°F)



Table 5-3 CONSTRUCTION DETAIL S

#30 AWG

#34 AWG

8

168

420

Inch 0.32

Tolerance plus or minus, Inch 0.02

6

266

665

0.39

0.02

5

336

836

0.42

0.02

4

420

1,064

0.45

0.02

3

532

1,323

0.48

0.02

2

665

1,666

0.55

0.03

1

836

2,107

0.60

0.03

1/0

1,064

2,646

0.66

0.03

2/0

1,323

3,325

0.73

0.04

3/0

1,666

4,256

0.80

0.04

4/0

2,107

5,320

0.87

0.04

250

2,499

6,384

0.92

0.05

300

2,989

7,581

1.01

0.05

350

3,458

8,806

1.05

0.05

400

3,990

10,101

1.13

0.06

450

4,522

11,396

1.19

0.06

500

5,054

12,691

1.24

0.06

Conductor Size AWG or k cmi l

Nominal Number of Wires

Outside Diameter



Section 6 TESTING AND TEST METHODS 6.1

TESTING

All wires and cables shall be tested at the factory to determine their compliance with the requirements given in Sections 2, 3, 4, and 5. When there is a conflict between the test methods given in Section 6 and publications of other organizations to which reference is made, the requirements given in Section 6 shall apply. Tests shall consist of the following, as required, namely, (1) tests on samples—see 6.3 to 6.15 inclusive, and 6.17.4, (2) electrical tests on entire lengths of completed cables—see 6.17.1 to 6.17.3 inclusive, and (3) conductor resistance tests—see 6.3—on samples or on entire lengths of completed cables. The test methods described in Section 6 are not completely applicable to all types of wires and cables, nor do they include every test applicable to a particular type of wire or cable . To determine which tests are to be made, refer to the parts in this publication that set forth the requirements to be met by the particular material or type of cable. 6.2

TESTS ON SAMPLES

Tests shall be made on samples selected at random. Each test sample shall be taken from the accessible end of different coils or reels. Each coil or reel selected and the corresponding sample shall be identified. The number and lengths of samples shall be as specified under the individual tests. 6.3

CONDUCTOR TEST METHODS

When samples are measured, they shall be selected in accordance with Table 6-1. Table 6-1 NUMBER OF SAMPLES Quantity of Completed Cable Ordered, Feet Less than 2,000 2,000–10,000 Each 10,000 of fraction thereof from 10,000– 50,000 Each additional 50,000 or fraction thereof

6.3.1

Number of Samples 0 1 1 1

Method for DC Resistance Determinatio n

Measurements shall be made in accordance with ICEA T-27-581. 6.3.2

Methods for Cross-sect ion al Area Determinatio n

Measurements shall be made in accordance with ICEA T-27-581.



Methods for Diameter Determinatio n

6.3.3.1

Diameter by Microm eter Measur ement

Measurements shall be made in accordance with ICEA T-27-581. 6.3.3.2

Diameter by Tape Measur ement o

A diameter tape readable to at least 0.005 inch shall be wrapped one turn (360 ) around the circumference of the conductor, tightly and perpendicular to the axis of the conductor. The average diameter of the conductor shall be read directly from the diameter tape. 6.4

TEST SAMPLES AND SPECIMENS FOR PHYSICAL AND AGING TESTS

6.4.1

General

Physical and aging tests shall be those required by Sections 3, 4, and 5. 6.4.2

Number of Thickn ess Measur ements

Test frequency shall be in accordance with ICEA T-26-465. 6.4.3

Measur ement of Thickn ess

Measurements shall be made in accordance with ICEA T-27-581. 6.4.3.1

Microm eter and Micros cop e Measur ements

For single conductor cables the thickness of the insulation or jacket shall be determined by the following formula. The average of the two measurements taken 90 degrees apart shall constitute each diameter. T=(D-d)/2 Where: T= Average thickness D= Outside diameter d= Inside diameter For multiple conductor cables with a jacket, the jacket shall be removed and the minimum point shall be recorded. The thickness of the jacket over each power conductor shall be recorded. The average of the number of recorded values shall be the average thickness of the jacket. No measured point shall be included more than one time in calculating the average thickness. 6.4.4

Sampling of Insulation for Physical and Aging Tests

Samples of insulated conductors for the unaged and aged physical tests shall be taken after crosslinking of the insulation but prior to the application of all coverings except those applied over the insulation before it is crosslinked. For insulation subjected to a second crosslinking, samples of insulated conductors may be taken either before or after the second crosslinking. Test frequency shall be in accordance with ICEA T-26-465. 6.4.5

Sampling of Jacket for Physical and Aging Tests

Test frequency shall be in accordance with ICEA T-26-465. If crosslinking of jackets is necessary, samples shall be taken after crosslinking but prior to the application of all coverings except those applied over the jacket before it is crosslinked 6.4.6

Number of Test Specimens

From each of the samples selected in accordance with 6.4.4 and 6.4.5, test specimens shall be prepared in accordance with Table 6-2.


ANSI/NEMA WC 58-2008 ICEA S-75-381-2008 Page 65 Table 6-2 NUMBER OF TEST SPECIMENS Total Number of Test Specimens For determination of unaged properties Tensile strength, tensile stress, and ultimate Elongation 3* Permanent set 3* Tear 3 For accelerated aging tests Air pressure heat or oxygen pressure 3* Air oven 3* For oil immersion 3* Heat shock 1 Heat distortion 3* Cold bend 1 Hot Creep 1 Stripping 1 * One test specimen out of three shall be tested and the other two specimens held in reserve, except that when only one sample is selected in accordance with 6.4.4 and 6.4.5, all three test specimens shall be tested and the average of the results reported.

6.4.7

Size of Specimens

Measurements shall be made in accordance with ICEA T-27-581. 6.4.8

Preparation of Specimens of Insulation and Jacket

The test specimens shall have no surface incisions and shall be as free as possible from other imperfections. Where necessary, surface irregularities such as corrugations due to stranding and such shall be removed so that the test specimens will be smooth and of uniform thickness. 6.4.9

Specimens with Thin Jackets Crosslinked to Insulation

In the case of wires or cables having a thin jacket crosslinked directly to the insulation, die-cut specimens of the jacket and insulation shall be prepared. The jacket shall be separated from the insulation by slitting the covering through to the conductor and pulling the jacket and insulation apart by means of pliers. (This procedure may sometimes be facilitated by immersing the sample in hot water for a few minutes just prior to pulling off the jacket.) If the jacket cannot be removed, specimens shall be prepared by buffing. The buffing apparatus for this operation shall be equipped with a cylindrical table arranged so that it can be advanced very gradually. The conductor shall be removed from two short lengths of wire by slitting the covering. One length or covering shall be stretched into the clamps of the buffing apparatus so that it lies flat, with the jacket toward the wheel. The jacket shall be buffed off, with due care not to buff any further than necessary. The process shall be repeated with the other length of covering, except that the insulation shall be buffed off. Die-cut specimens shall be prepared from the buffed pieces after they have been allowed to recover for at least 30 minutes. (In the case of specimens from small wires, it may be necessary to use a die having a constricted portion 1/8 inch wide.) 6.4.10

Specimen for the Tear Test




Specimen for Acc elerated Agin g Test

Samples shall be taken after crosslinking and prior to the application of any covering except those applied before crosslinking. Tests shall be made neither earlier than 24 hours nor later than 60 days after vulcanization. Specimens shall not be heated, immersed in water, nor subjected to any mechanical or chemical treatment not specifically described in this standard. 6.4.12

Calculatio n of Area of Test Specimens

This calculation shall be made in accordance with ICEA T-27-581. 6.4.13

Physic al Test Procedur es

(See 6.4 for Test Samples and Specimens) 6.4.13.1 Test Temperat ur e Test temperature shall be in accordance with ICEA T-27-581. 6.4.13.2 Type of Testin g Machi ne The testing machine shall be in accordance with 6.1 of ASTM D412. 6.4.13.3 Tensile Strength Test Measurements shall be made in accordance with ICEA T-27-581. 6.4.13.4 Set Test Measurements shall be made in accordance with ICEA T-27-581. 6.4.13.5 Elongati on Test Measurements shall be made in accordance with ICEA T-27-581. 6.4.13.6 Tensi le Stres s Test Measurements shall be made in accordance with ICEA T-27-581. 6.4.13.7 Tear Test Measurements shall be made in accordance with ICEA T-27-581. The number of test specimens shall be in accordance with Table 6-2. The average of the results obtained on all test specimens shall be considered as the value of the tear resistance. 6.4.14

Agin g Test

6.4.14.1 Agin g Test Specimens Measurements shall be made in accordance with ICEA T-27-581. Test frequency shall be in accordance with ICEA T-26-465. 6.4.14.2 Oxygen Pressu re Test The test specimens shall be heated in an atmosphere of oxygen at a pressure of 290 to 310 psi (1.998 to 2.136 MPa) at the temperature and for the period specified for the grade of insulation or jacket being tested. The weight of the insulation or jacket in the bomb shall be not more than 2 grams of actual rubber or oxidizable substance per cubic inch of bomb space. The bomb pressure shall be reduced at a uniform rate requiring at least 5 minutes to reach atmospheric pressure at which time the specimens shall be removed. The bomb temperature shall be o recorded automatically on a chart and controlled to ± 1 C.


ANSI/NEMA WC 58-2008 ICEA S-75-381-2008 Page 67 6.4.14.3 Air Oven Test Measurements shall be made in accordance with ICEA T-27-581. 6.4.14.4 Air Pressu re Heat Test The test specimens shall be heated in air at a pressure of 77 to 83 psi (530 to 572 kPA) at the temperature and for the period specified. This test shall be conducted in a steam-jacketed bomb or other suitable and uniformly heated chamber. The bomb shall be so regulated that the temperature inside the chamber shall reach the test temperature within 15 minutes after inserting the test specimens. The air shall be substantially free from oil and moisture. The weight of the actual rubber or oxidizable substance in the bomb shall be not more than 2 grams per cubic inch of bomb space. The bomb pressure shall be reduced at a uniform rate, requiring at least 5 minutes to reach atmospheric pressure, at which time the specimens shall be removed. The o bomb temperature shall be recorded automatically on a chart and controlled to ± 1 C. 6.4.14.5 Oil Immersio n Test for Cross -linked Jackets Measurements shall be made in accordance with ICEA T-27-581. 6.4.14.6 Oil Immersio n Test for Thermopl astic Jackets Measurements shall be made in accordance with ICEA T-27-581 except that the test specimens shall be allowed to rest at room temperature for a period of 16 to 96 hours. 6.4.15

Physical Tests for Semi Conduct ing Material Intended for Extrusio n

6.4.15.1 Test Sampl e One test sample shall be molded from each lot of semi conducting material intended for extrusion on the cable. 6.4.15.2 Test Speci mens For each test three test specimens, each approximately 6 inches long and not greater than 0.025 square inch in cross-section, shall be cut out of the test sample with a die. All three test specimens shall be tested and the results averaged. 6.4.15.3 Elongation This test shall be conducted in accordance with 6.4.13 and 6.4.14. 6.4.15.4 Brit tleness Test This test shall be conducted in accordance with ASTM D 746, using Specimen A. 6.4.16

Retests for Physical and Aging Properties and Thickness

If any test specimen fails to meet the requirements of any test, either before or after aging, that test shall be repeated on two additional specimens taken from the same sample. When the tear resistance of the first set of six specimens fails to meet the requirements, two additional sets of test specimens shall be tested. Failure of either of the additional specimens shall indicate failure of the sample to conform to this standard. If the thickness of the insulation or of the jacket of any coil or reel is found to be less than the specified value, that coil or reel shall be considered as not conforming to this standard, and a thickness measurement on each of the remaining coils or reels shall be made. When ten or more samples are selected from any single lot, all coils or reels shall be considered as not conforming to this standard if more than 10 percent of the samples fail to meet the © Copyright 2008 by the National Electrical Manufacturers Association and the Insulated Cable Engineers Association

ANSI/NEMA WC 58-2008 ICEA S-75-381-2008 Page 68 requirements for physical and aging properties and thickness. If 10 percent or less fail, each coil or reel shall be tested and shall be judged upon the results of such individual tests. Where the number of samples selected in any single lot is less than ten, all coils or reels shall be considered as not conforming to this standard if more than 20 percent of the samples fail. If 20 percent or less fail, each coil, reel, or length shall be tested and shall be judged upon the results of such individual tests. 6.5

CAPACITY AND POWER FACTOR TESTS

This test is applicable only to power cables rated 5,001 volts and more. The test sample shall be taken from cable in the preliminary stage. One test sample shall be taken for the first 5,000 to 20,000 feet of each cable construction and one additional sample for each additional 100,000 feet. The gross length of each sample shall be 13 feet for cables rated 15,000 volts and less and 17 feet for cables rated more than 15,000 volts. The capacity and power factor shall be measured on suitable 60-Hz equipment after the test sample has been immersed in water at room temperature for at least 24 hours. The measurements shall be made at the rated voltage to ground of the cable under test. 6.6

ACCELERATED WATER AB SORPTION

6.6.1

General

No test sample shall be taken for 5,000 feet or less. One test sample for each test shall be taken for the first 5,001 to 20,000 feet of each cable construction and one additional sample for each additional 100,000 feet. The gross length of each sample required by the electrical method shall be 15 feet and by the gravimetric method 11 inches. These tests shall not be made on cables that have a nonconductive separator between the conductor and insulation, insulations less than 0.045 inch thick, and insulations having a covering that cannot be removed without damage to the insulation. Test samples of the insulated conductor shall be taken after crosslinking and prior to the application of any covering except that which may have been applied before crosslinking. Such coverings shall be removed before the test is made. 6.6.2

Elect ric al Metho d (EM-60) o

o

This test method shall be in accordance with T-27-581 at 75 C ± 1 C. 6.7

SURFACE RESISTANCE

A sample of the completed cable shall be wiped with a clean absorbent cloth. Two one-inch wide foil electrodes spaced one-half inch apart shall be wound around the cable surface. A 200-500 volt DC potential shall be applied between the two electrodes and the resistance shall be measured in accordance with ASTM D 257. This test shall be made at room temperature. 6.8

THICKNESS OF TAPES

Measurements shall be made in accordance with T-27-581. 6.9

HEAT (DEFORMATION) DISTORTION




HEAT SHOCK

Measurements shall be made in accordance with ICEA T-27-581. Each sample of jacketed cable selected in accordance with Table 6-2. 6.11

COLD BEND

Each sample of completed cable selected in accordance with Table 6-2, shall be subjected to the specified temperature for 1 hour and then bent 180 degrees around a mandrel having a diameter in accordance with Table 6-3 immediately upon its removal from the cooling chamber. The bend shall be made at a uniform rate. The time required shall not exceed 1 minute. Table 6-3 MANDREL SIZE FOR COLD BEND TEST Outsid e Diameter of Wire or Cable, Inches 0.800 or l ess 0.801 and ov er 6.12

Diameter of Mandrel as a Multiple of the Outsid e Diameter of Cable 8 10

HOT CREEP TEST

The hot creep test shall be determined in accordance with ICEA Publication T-28-562. For all cables with conductors larger than 500 kcmil and for all cables rated 25,000 volts or over, one sample shall be taken for orders of between 10,000 and 40,000 feet. One additional sample shall be tested for each additional 30,000 feet or major fraction (>50%) thereof. For all cables rated 2,001–25,000 volts with conductor sizes 500 kcmil and less, one sample shall be taken for orders of between 25,000 and 100,000 feet. One additional sample shall be tested for each additional 100,000 feet or major fraction (>50%) thereof. For all cables rated 2,000 volts or less with conductor sizes 500 kcmil and less, one sample shall be taken for orders of between 100,000 and 1,000,000 feet or major fraction (>50%) thereof. 6.13

SOLVENT EXTRACTION

The solvent extraction shall be determined in accordance with ASTM D2765. 6.14

VOLUME RESISTIVITY

This test shall be made in accordance with T-27-581. 6.14.1

Test Sampl es

One sample shall be taken from each 25,000 feet or major fraction (>50%) thereof for each cable construction. 6.15

STRIPPING TEST

The test method shall be in accordance with T-27-581. Test samples shall be selected in accordance with Table 6-2.



RETESTS FOR TESTS COVERED BY 6.6 THROUGH 6.15 AND 6.17.4

If all of the samples pass the applicable tests described in 6.6 through 6.15 and 6.17.4 the quantity of cable that they represent shall be considered as meeting the requirements of this standard. If any sample fails to pass these tests, the length of cable from which the sample was taken shall be considered as not meeting the requirements of this standard and another sample shall be taken from each of two other l engths of cable in the quantity of cable under test. If ei ther of the second samples fails to pass the test, the quantity of cable shall be considered as not meeting the requirements of this standard. If both such second samples pass the test, the quantity of cable (except the length represented by the first sample) shall be considered as meeting the requirements of this standard. Failure of any sample shall not preclude re-sampling and retesting the length of cable from which the original sample was taken. 6.17

ELECTRICAL TESTS ON COMPLETED CABLES

6.17.1

VOLTAGE TESTS

6.17.1.1 General These tests consist of voltage tests on each length of completed cable. Except for the DC spark test and the AC spark test, the voltage shall be applied between the conductor or conductors and the metallic shield or ground, and the rate of increase from the initially applied voltage to the specified test voltage shall be approximately uniform and shall be not more than 100 percent in 10 seconds nor less than 100 percent in 60 seconds. 6.17.1.1.1

Cables wit hou t Metallic Shield

Each insulated conductor shall be tested against all other conductors connected to ground. 6.17.1.1.2

Cables wit h Metallic Shield

All cables of this type shall be tested with the metallic shield grounded without immersion in water, at the test voltage specified. For cables having a metallic shield over the individual conductor(s), the test voltage shall be applied between the insulated conductor(s) and ground. For multiple-conductor cables with nonshielded individual conductors having a metallic shield over the cable assembly, the test voltage shall be applied between each insulated conductor and all other conductors and ground. 6.17.1.2 AC Volt age Test This test shall be made with an alternating potential from a transformer and generator of ample capacity but in no case less than 5 kilovoltamperes. The frequency of the test voltage shall be nominally between 25 and 60 hertz and shall have a wave shape approximating a sine wave as closely as possible. The initially applied AC test voltage shall be not greater than the rated AC voltage of the cable under test. The duration of the AC voltage test shall be 5 minutes. 6.17.1.3 DC Volt age Test This test is applicable to cables without insulation shield rated up through 5,000 volts and to all cables rated 5,001 volts and above and shall be made after the insulation resistance test


ANSI/NEMA WC 58-2008 ICEA S-75-381-2008 Page 71 described in 6.17.2. The equipment for the DC voltage test shall consist of a battery, generator or suitable rectifying equipment and shall be of ample capacity. The initially applied DC voltage shall be not greater than 3.0 times the rated AC voltage of the cable. The duration of the DC voltage test shall be 15 minutes for cables with insulation shield and 5 minutes for cables without insulation shield. 6.17.1.4 AC Spark Test The test method shall be in accordance with ICEA T-27-581. 6.17.1.5 DC Spark Test The test method shall be in accordance with ICEA T-27-581. 6.17.2

INSULATION RESISTANCE

The test method shall be in accordance with ICEA T-27-581. 6.17.3

PARTIAL -DISCHARGE TEST PROCEDURE

The test method shall be in accordance with ICEA T-24-380. 6.18 METHOD DETERMINING PERMITTIVITY (S.I.C.) AND DIELECTRIC STRENGTH OF EXTRUDED NONCONDUCTING POLYMERIC STRESS CONTROL L AYERS The terms Permittivity (S.I.C.) and Dielectric Constant are used interchangeably. The test method shall be in accordance with ANSI/NEMA/ICEA T-27-581-2002/NEMA WC 53-2000.



Annex A (Informative) SYMBOLS AND ABBREVIATIONS

AC AWG C DC F Hz kcmil

alternating current American wire gauge Celsius (centigrade) direct current Fahrenheit hertz (electrical frequency in cycles per second) thousands of circular mils (formerly MCM)

kg km kN/m kV MPa mm psi %

kilogram(s) kilometer(s) kilonewtons per meter kilovolt(s) megapascals millimeter(s) pounds per square inch percent



Annex B (Normative) DEFINITIONS FOR MAXIMUM TEMPERATURE OF CONDUCTORS IN INSULATED WIRE AND CABLE B.1

MAXIMUM CONDUCTOR TEMPERATURE—OPERATING

The highest conductor temperature attained by any part of the cable line under operating current load. B.2

MAXIMUM CONDUCTOR TEMPERATURE—EMERGENCY OVERLOAD

The highest conductor temperature attained by any part of the cable line during emergency overload of specified time, magnitude and frequency of application. B.3

MAXIMUM CONDUCTOR TEMPERATURE—SHORT CIRCUIT

The highest conductor temperature attained by any part of the cable line during a short circuit of specified time and magnitude.



Annex C (Normative) EMERGENCY OVERLOAD RATINGS FOR INSULATED CABLES

Voltage Rating, Volts

60

2,000 or Less 2,001 – 5,000 5,001 – 8,000 8,001 – 15,000 15,001 and Higher

85 ... ... ... ...

Maximum Temperature Rating of Insul ation, Degrees C 70 75 80 85 Maximum Emergency Overload Temperature, Degrees C ... ... .... 85 85

95 95 90 ... ...

... ... ... ... 95

105 105 100 100 ...

90 130 130 130 130 130

Operations at the emergency overload temperature shall not exceed 100 hours in any twelve consecutive months nor more than 500 hours during the lifetime of the cable. Lower temperatures for emergency overload conditions may be required because of the type of material used in the cable, joints, and terminations or because of cable environmental conditions.



Annex D (Normative) ICEA PUBLICATIONS, ASTM, NEMA STANDARDS AND NFPA D.1

ICEA PUBLICATIONS – SEE NOTE 1

T-24-380-1994 T-26-465-1990 T-27-581-1990 T-28-562-2003 D.2

Guide for Partial-Discharge Test Procedure Guide for Frequency of Sampling Extruded Dielectric Power, Control, Instrumentation, and Portable Cables for Test Standard Test Methods for Extruded Dielectric Power, Control, Instrumentation, and Portable Cables for Test Test Method for Measurement of Hot Creep of Polymeric Material

ASTM STANDARDS – SEE NOTE 2

ASTM Standards to which reference is made in this standard: B 2-00

Medium-Hard Drawn Copper Wire, Specification for

B 3-01

Soft or Annealed Copper Wire, Specification for

B 5-00

Tough-Pitch Electrolytic Copper Refinery Shapes, Specification for

B 8-04

Concentric-Lay Stranded Copper Conductors, Hard, Medium-Hard, or Soft, Specification for

B 33-04

Tinned Soft or Annealed Copper Wire for Electrical Purposes, Specification for

B 172-0la

Rope-Lay-Stranded Copper Conductors Having Bunch-Stranded Members, for Electrical Conductors, Specification for

B 173-0la

Rope-Lay-Stranded Copper Conductors Having Concentric-Stranded Members for Electrical Conductors, Specification for

B 174-02

Bunch-Stranded Copper Conductors for Electrical Conductors, Specification for

B 193-02

Resistivity of Electrical Conductor Materials, Test for

B 230-99

Aluminum-Alloy 1350-H 19 Wire, for Electrical Purposes Specification for

B 231-04

Concentric-Lay-Stranded Aluminum-Alloy 1350 Conductors, Specification for

B 233-03

Aluminum 1350 Drawing Stock for Electrical Purposes, Specification for

B 263-04

Cross-Sectional Area of Strands Conductors, Determination of

B 400-04

Compact-Round Concentric-Lay-Stranded 1350 Aluminum-Alloy Conductors, Specification for

B 496-04

Compact Round Concentric-Lay-Stranded Copper Conductors, Specification for



B 609-99

Aluminum 1350 Round Wire, Annealed and Intermediate Intermediate Tempers for Electrical Electrical Purposes, Specification for

B 784-01

Modified Concentric-Lay-Stranded copper conductor for Use in Insulated Electrical Cables, Specification for

B 785

Compact Round Modified Concentric-Lay-Stranded copper conductor for Use in Insulated Electrical Cables, Specification for

B 786-02a

19 Wire Combination Unilay-Stranded Aluminum 1350 Conductors for Subsequent Insulation, Specification for

B 787-04

19 Wire Combination Unilay-Stranded Copper Conductors for Subsequent Insulation, Specification for

B 800-00

8000 Series Aluminum Alloy Wire for Electrical Purposes -Annealed and Intermediate Tempers, Specification for

B 801-99

Concentric-Lay-Stranded Conductors of 8000 Series Aluminum Alloy for Subsequent Covering or Insulation, Specification for

B 835-04

Compact Round SIW Stranded Copper Conductors, Specification for

B 836-00

Compact Round SIW Stranded Aluminum Conductors, Specification for

D 257-99

DC Resistance or Conductance of Insulating Materials, Tests for

D 412-98a

Rubber Properties in Tension, Tests for

D 4496-04

Standard Test Method for DC Resistance or Conductance of Moderately Conductive Materials

D 471-98e2

Rubber Property – Effects of Liquids, Test for

D 746-00

Brittleness Temperature of Plastics and Elastomers by Impact, Tests for

D 2765-01

Determinations of Gel Content and Swell Ratio of Cross-linked Ethylene Plastics, Test for

E 8-04

Tension Testing of Metallic Materials

D.3

NEMA STANDARDS – SEE NOTE 3

WC 26-2000

D.4

NFPA – SEE NOTE 4

NFPA 70 D.5

Wire & Cable Packaging

National Electrical Code

IEEE STANDARDS

P-46-426/IEEE #S-135 Power Cable Ampacities (This standard no longer in print.) © Copyright 2008 by the National Electrical Manufacturers Association and the Insulated Cable Engineers Association


NOTE 1—Copies may be obtained from the Global Engineering Documents, 15 Inverness Way East, Englewood, CO 80112 USA NOTE 2—Copies may be obtained from the American Society for Testing and Materials, 100 Barr Harbor Drive, West Conshohocken, PA 19428 USA NOTE 3—Copies may be obtained from NEMA Sales Office, National Electrical Manufacturers Association, 2101 L Street, N.W., Washington, DC 20037 USA NOTE 4—National Electrical Code can be obtained from National Fire Protection Association (NFPA). One Batterymarch Park, Quincy, MA 02169-7471USA



Annex n nex E (Informative) SHIELDING E.1 DEFINITION DEFINITION OF SHIELDING Shielding of an electric power cable is the practice of confining the dielectric field of the cable to the insulation of the conductor or conductors. It is accomplished by means of a conductor stress control layer and/or an insulation shield. E.2

FUNCTIONS FUNCTIONS OF SHIELDING

E.2.1

Application

A conductor stress control layer is employed to preclude preclude excessive voltage stress on voids between conductor and insulation. To be effective, it must adhere to or remain in intimate contact with the insulation under all conditions. E.2.2

Functions

(a) To confine the dielectric field within the cable. (b) To obtain symmetrical radial distribution of voltage stress within the dielectric, thereby minimizing the possibility of surface discharges by precluding excessive tangential and longitudinal stresses. (c) To protect cable connected to overhead lines or otherwise otherwise subject to induced potentials. potentials. (d) To limit radio interference. interference. (e) To reduce the hazard of shock. This advantage is obtained only if the shield is grounded. If not grounded, the hazard of shock may be increased. E.3

USE OF INSULATION SHIELDING

The use of shielding involves consideration of installation and operating conditions. Definite rules cannot be established on a practical basis for all cases, but the following features should be considered as a working basis for the use of shielding. E.3.1 E.3.1

No Metallic Shield

Where there is no metallic covering or shield over the insulation, the electric field will be partly in the insulation and partly in whatever lies between the insulation and ground. The external field, if sufficiently intense in air, will generate surface discharge and convert atmospheric oxygen into ozone, which may be destructive to insulations and to protective jackets. If the surface of the cable is separated from ground by a thin layer of air and the air gap is subjected to a voltage stress that exceeds the dielectric strength of air, a discharge will occur, causing ozone formation. E.3.2 E.3.2

Metallic Shield

The ground may be a metallic conduit, a damp nonmetallic conduit or a metallic binding tape or rings on an aerial cable, a loose metallic sheath, and such. Likewise, damage to nonshielded cable may result when the surface of the cable is moist, or covered with soot, soapy grease or other conducting film and the external field is partly confined by such conducting film so that the charging current is carried by the film to some spot where it can discharge to ground. The resultant intensity of discharge may be sufficient to cause burning of the insulation or jacket.



E.3.3

Shield Resistance

Where maximum safety is desired, shielding is recommended, since contact with the energized cable can present a shock hazard for those who handle or contact those cables. Shielding used to reduce hazards of shock should have a resistance low enough to operate protective equipment in case of a fault. In some cases the efficiency of protective equipment may require proper size ground wires as a supplement to shielding. The same considerations apply to exposed installations where cables may be handled by personnel who may not be acquainted with the hazards involved. E.4

GROUNDING OF THE INSULATION SHIELD

The insulation shield must be grounded at least at one end and preferably at two or more locations. It is recommended that the shield be grounded at cable terminations and at splices and taps. Stress cones should be made at all shield terminations. The shield should operate at or near ground potential at all times. Frequent grounding of shields reduces the possibility of open sections on nonmetallic covered cable. Multiple grounding of shields is desirable in order to improve the reliability and safety of the circuit. All grounding connections should be made to the shield in such a way as to provide a permanent low resistance bond. Shielding that does not have adequate ground connection due to discontinuity of the shield or to improper termination may be more dangerous than nonshielded nonmetallic cable and hazardous to life. E.5

SHIELD MATERIAL S

E.5.1

Nonmetallic Shields

Nonmetallic shields may consist of a conducting tape or a layer of conducting compound. The tape may be conducting compound, fibrous tape faced or filled with conducting compound, or conducting fibrous tape. E.5.2

Metallic Shields

Metallic shields should be nonmagnetic and may consist of tape, braid, concentric service of wires, or a sheath. E.6

SPLICES AND TERMINATIONS

To prevent excessive leakage current and flashover, metallic and nonmetallic insul ation shields, including any conducting residue on the insulation surface, must be removed completely at splices and terminations. An outer extruded insulation shield shall be removable without damaging or imparting conductivity to the underlying insulation. This may be accomplished by the aid of heat or by the use of a suitable solvent.



Annex F (Informative) MINIMUM BENDING RADIUS FOR CABLES F.1

SCOPE

This annex contains the minimum values for the radius to which insulated and jacketed cables may be bent for handling in service. These limits do not apply to conduit bends, sheaves, or other curved surfaces around which the cable may be pulled under tension while being installed; larger bends are required for such conditions. In all cases the minimum radius specified refers to the inner surface of the cable and not to axis of the cable. For the drum diameter of reels, see Annex G.

F.2

PORTABL E CABL ES

The minimum bending radius for portable cables during handling in service is six times the cable diameter for cables rated 5,000 volts and less and eight times the cable diameter for cables rated more than 5,000 volts. For flat cables, the minor dimension is used to determine the bending radius.

F.3

MINE POWER FEEDER CABLES

The minimum bending radius for all mine power feeder cables is twelve times the overall diameter of the completed cable.

Cable Type

Portable Cable 5,000 volt s and less Portable Cable greater than 5,000 volts Mine Power Feeder

Minimum Bending Radius The factor is mul tiplied by cable OD 6 8 12



Annex G (Informative) MINIMUM DRUM DIAMETERS OF SHIPPING REELS*

Type of Cable A.

Minimum Drum Diameter as a Multiple of Outside Diameter**

Single-and multiple-conductor nonmetallic-covered cable 1. Nonshielded and wire shielded, including cables with metal braid and metal wire shield. a. 0-2,000 volts b. Over 2,000 volts 2. Tape shielded

10 12 14

*Excerpted from NEMA Standards Publication/No. WC 26, "Wire & Cable Packaging." **For Flat Type W, G, and G-GC cables (where the cable is placed upon t he reel with its flat side against the drum), the minor diameter shall be multiplied by the appropriate factor to determine the minimum drum diameter.



Annex H (Informative) AMPACITIES AND VOLTAGE RATINGS OF PORTABLE CAB LES

H.1

AMPACITIES (CURRENT-CARRYING CAPACITY IN AMPERES)

The recommended ampacities for the various sizes and types of portable cables are given in Table H-1. o o These values are based on an ambient temperature of 40 C (104 F). Correction factors for ampacities at various ambient temperatures are as follows: Am bi ent Temp erat ur e, Degrees C 10 20 30 40 50

Mul ti pl ying Correcti on Factors 1.26 1.18 1.10 1.00 0.90

When the cables are used with one or more layers wound on a reel, the ampacities shall be corrected as follows:

Number of Layers 1 2 3 4

Multiplying Correction Factors 0.85 0.65 0.45 0.35

Correction factors for ampacities at other operating conductor temperatures are as follows: Operating Temperature, Degrees C 70 75 80 85

Multiplying Correction Factor 0.800 0.855 0.905 0.955


Table H-1 AMPACITIES FOR PORTABL E POWER CAB LES, AMPERES PER POWER CONDUCTOR Single Conductor

© C o p y r i g h t a 2 n 0 d 0 t h 8 e b I n y s t h u e l N a t e a d t i C o n a a b l l E e l E e n c r g t i i n c a e l e M r s a A n s u f s a o c c t i u a r t i e o r s n A s s o c i a t i o n

© C o p y r i g h a t n 2 d 0 0 t h 8 e b y I n s t h u e l N a t e a d t i C o n a a b l l e E l E e n c t g r i i n c e a e l r M s a A n s u f s a o c c t i u a r t i e o r

Power Conductor Size AWG or kcmil 8 6 4 3 2 1

Three Conductor

2,000 Volt s or L ess Nonshielded 83 109 145 167 192 223

2,001– 8,000 Vol ts* Shielded ... 112 148 171 195 225

8,001– 15,000 Volt s* Shielded ... ... ... ... 195 225

15,001– 25,000 Vol ts* Shielded ... ... ... ... ... 222

Two Conductor, 2,000 Volt s or Less 72 95 127 145 167 191

1/0 2/0 3/0 4/0

258 298 345 400

260 299 345 400

259 298 343 397

255 293 337 389

217 250 286 328

250 300 350 400 450 500 550 600 650 700 750 800 900 1,000

445 500 552 600 650 695 737 780 820 855 898 925 1,010 1,076

444 496 549 596 640 688 732 779 817 845 889 925 998 1,061

440 491 543 590 633 678 ... ... ... ... ... ... ... ...

430 480 529 572 615 659 ... ... ... ... ... ... ... ...

363 400 436 470 497 524 ... ... ... ... ... ... ... ...

8,000 Volt s or L ess Shielded ... 93 122 140 159 184

8,001– 15,000 Volt s Shielded ... ... ... ... 164 187

15,001– 25,000 Volt s Shielded ... ... ... ... 178 191

Four Conductor 2,000 Vol ts or Less 54 72 93 106 122 143

Five Conductor 2,000 Volt s or Less 50 68 88 100 116 136

Six Conductor 2,000 Vol ts or Less 48 64 83 95 110 129

186 215 249 287

211 243 279 321

215 246 283 325

218 249 286 327

165 192 221 255

... ... ... ...

... ... ... ...

320 357 394 430 460 487 ... ... ... ... ... ... ... ...

355 398 435 470 503 536 ... ... ... ... ... ... ... ...

359 ... ... ... ... ... ... ... ... ... ... ... ... ...

360 ... ... ... ... ... ... ... ... ... ... ... ... ...

280 310 335 356 377 395 ... ... ... ... ... ... ... ...

... ... ... ... ... ... ... ... ... ... ... ... ... ...

... ... ... ... ... ... ... ... ... ... ... ... ... ...

5,000 Vol ts or Less Nonshielded 59 79 104 120 138 161

A N S I I C / N E E A M S A -7 W 5 C 3 P 8 5 a 1 8 g -2 -2 e 0 0 8 0 0 3 8 8

*These ampacities are based on single isolated cable in air operated with open-circuited shield. o

o

NOTE—These ampacities are based on a conductor temperature of 90 C and an ambient air temperature of 40 C.


Annex I (Informative) AMPACITIES FOR THREE-CONDUCTOR MINE POWER CABLES 2,001 TO 25,000 VOLTS COPPER AND A LUMINUM

Table I-1 AMPACITIES FOR THREE-CONDUCTOR MINE POWER CABL ES

Con duc to r Size AWG or k cmi l* Copper Aluminum 4 6 2 4 1/0 2 2/0 1

Ampac it ies 2,001 – 8,000 8,001 – 15,000 Vol ts Vol ts Copper Aluminum Copper Aluminum 93 95 ... ... 122 124 ... ... 159 165 164 168 184 189 187 192

15,001 - 25,000 Vol ts Copper Aluminum … … … … 168 170 191 194

1/0 2/0 3/0 4/0

3/0 4/0 250 350

211 243 279 321

218 251 278 342

215 246 283 325

221 254 281 344

218 249 286 326

223 256 283 346

250 300 350 400 450

400 450 500 ... ...

355 398 435 470 502

360 395 425 ... ...

359 401 438 473 504

367 393 424 ...

360 402 439 473

369 404 426 …

© C o p y r i g h a t n 2 d 0 0 t h 8 e b y I n s t h u e l N a t e a d t i C o n a a b l l e E l E e n c t g r i i n c e a e l r M s a A n s u f s a o c c t i u a r t i e o r n s A s s o c i a t i o n


Annex I (Informative) AMPACITIES FOR THREE-CONDUCTOR MINE POWER CABLES 2,001 TO 25,000 VOLTS COPPER AND A LUMINUM

Table I-1 AMPACITIES FOR THREE-CONDUCTOR MINE POWER CABL ES

Con duc to r Size AWG or k cmi l* Copper Aluminum 4 6 2 4 1/0 2 2/0 1

Ampac it ies 2,001 – 8,000 8,001 – 15,000 Vol ts Vol ts Copper Aluminum Copper Aluminum 93 95 ... ... 122 124 ... ... 159 165 164 168 184 189 187 192

15,001 - 25,000 Vol ts Copper Aluminum … … … … 168 170 191 194

1/0 2/0 3/0 4/0

3/0 4/0 250 350

211 243 279 321

218 251 278 342

215 246 283 325

221 254 281 344

218 249 286 326

223 256 283 346

250 300 350 400 450 500

400 450 500 ... ... ...

355 398 435 470 502 536

360 395 425 ... ... ...

359 401 438 473 504 536

367 393 424 ... ... ...

360 402 439 473 … 536

369 404 426 … … …

o

o

* Ampacities are based on an ambient temperature of 40 C and a conductor temperature of 90 C taken from "Power Cable Ampacities", IPCEA P ublication No. P-46-426 (IEEE Publication No. 5-135). Vol. 1 for Copper Conductors and Vol. 2 for aluminum conductors page 309. o

For ampacities at operating temperatures other than 90 C see Annex H. o For ampacities at ambient temperatures other than 40 C see Annex H.


Annex J (Informative) VOLTAGE TEST AFTER INSTALLATION If voltage tests are made after installation, they shall be made immediately. The test voltage shall be a direct-current voltage as given in Table J-1 and shall be applied in accordance with 6.17.1.1 and 6.17.1.3.

Table J-1 DC TEST VOLTAGES AFTER INSTALLATION, kV

Rated Circuit Voltage, Phase-to-Phase, Volts 2,001–5,000 5,001–8,000

Conductor Size, AWG or k cm il 8–1,000 6–1,000

Test Voltage, kV 100 Percent 133 Percent Insulation Level Insulation Level 25 25 35 35


Annex J (Informative) VOLTAGE TEST AFTER INSTALLATION If voltage tests are made after installation, they shall be made immediately. The test voltage shall be a direct-current voltage as given in Table J-1 and shall be applied in accordance with 6.17.1.1 and 6.17.1.3.

Table J-1 DC TEST VOLTAGES AFTER INSTALLATION, kV

Rated Circuit Voltage, Phase-to-Phase, Volts 2,001–5,000 5,001–8,000 8,001–15,000 15,001–25,000

Conductor Size, AWG or k cm il 8–1,000 6–1,000 2–1,000 1–1,000

Test Voltage, kV 100 Percent 133 Percent Insulation Level Insulation Level 25 25 35 35 55 65 80 100



ANNEX K (Informative) ADDITIONAL CONDUCTOR INFORMATION Table K-1 Concentric Stranded Class B Aluminu m and Copper Conductors Conductor Size, AWG or k cmi l

Number of Strands

App ro xi mate Di ameter of Each Strand

10 9

7 7

Inch 0.0385 0.0432

mm 0.978 1.10

8

7

0.0486

1.23

7

7

0.0545

1.38

6

7

0.0612

1.55

5

7

4 3 2 1 1/0 2/0 3/0 4/0 250 300 350 400 450 500

7 7 7 19 19 19 19 19 37 37 37 37 37 37

0.0688 0.0772 0.0867 0.0974 0.0664 0.0746 0.0837 0.0940 0.1055 0.0822 0.0900 0.0973 0.1040 0.1103 0.1162

App ro xi mate Wei gh t Alu mi nu m Pounds per 1,000 Feet kg/km

1.75

… … … … … …

… … … … … …

1.96 2.20 2.47 1.69 1.89 2.13 2.39 2.68 2.09 2.29 2.47 2.64 2.80 2.95

39.10 49.32 62.24 78.52 99.11 124.8 157.4 198.2 234.3 280.9 328.3 376.0 421.9 469.0

58.18 73.38 92.60 116.8 147.5 185.6 234.1 294.9 348.6 417.9 488.5 558.1 627.7 696.7

Copp er Pounds per 1,000 Feet kg/km 32.04 47.66 40.33 60.01 51.05

75.95

64.19

95.51

80.95

120.4

102.3

152.2

128.8 162.5 205.0 258.6 326.5 411.0 518.3 652.9 771.9 925.3 1,082 1,236 1,390 1,542

191.6 241.7 305.0 384.8 485.7 611.4 771.2 971.4 1,148 1,377 1,609 1,838 2,068 2,295



Table K-2 Concentric Stranded Class C and D Aluminum and Copper Conductors Conductor Size, AWG or kcmil

Class C Number of Strands

10 9 8 7 6 5 4 3 2 1 1/0 2/0 3/0 4/0 250 300 350 400 450 500

19 19 19 19 19 19 19 19 19 37 37 37 37 37 61 61 61 61 61 61

App ro xi mate Di ameter of Eac h Strand Inch mm 0.594 0.0234 0.665 0.0262 0.749 0.0295 0.841 0.0331 0.945 0.0372 1.06 0.0417 1.19 0.0469 1.34 0.0526 1.50 0.0591 1.21 0.0476 1.36 0.0534 1.52 0.0600 1.71 0.0673 1.92 0.0756 1.63 0.0640 1.78 0.0701 1.92 0.0757 2.06 0.0810 2.18 0.0859 2.30 0.0905

Class D Number of Strands 37 37 37 37 37 37 37 37 37 61 61 61 61 61 91 91 91 91 91 91

App ro xi mate Di ameter of Eac h Strand Inch Mm 0.424 0.0167 0.478 0.0188 0.536 0.0211 0.602 0.0237 0.676 0.0266 0.759 0.0299 0.853 0.0336 0.958 0.0377 1.08 0.0424 0.940 0.0370 1.06 0.0416 1.19 0.0467 1.33 0.0524 1.50 0.0589 1.33 0.0524 1.46 0.0574 1.57 0.0620 1.68 0.0663 1.79 0.0703 1.88 0.0741

NOTE–The weights of Class C and Class D conductors are the same as for t he equivalent Class B conductor.



Table K-3 Rope-Lay Copper Conducto rs Class G Conductor Size, AWG or kcmil

12 10 9 8 7 6 5 4 3 2 1 1/0 2/0 3/0 4/0 250 300 350 400 450 500 550 600 650 700 750 800 900 1,000

Number of Strands

49 49 49 49 49 49 49 49 49 49 133 133 133 133 133 259 259 259 259 259 259 427 427 427 427 427 427 427 427

*Suggested Construction

7x7 7x7 7x7 7x7 7x7 7x7 7x7 7x7 7x7 7x7 19 x 7 19 x 7 19 x 7 19 x 7 19 x 7 37 x 7 37 x 7 37 x 7 37 x 7 37 x 7 37 x 7 61 x 7 61 x 7 61 x 7 61 x 7 61 x 7 61 x 7 61 x 7 61 x 7

App ro xi mate Diameter of Each Strand Inch 0.0116 0.0146 0.0164 0.0184 0.0206 0.0231 0.0260 0.0292 0.0328 0.0368 0.0251 0.0282 0.0316 0.0355 0.0399 0.0311 0.0340 0.0368 0.0393 0.0417 0.0439 0.0359 0.0375 0.0390 0.0405 0.0419 0.0433 0.0459 0.0484

mm 0.29 0.37 0.42 0.47 0.52 0.59 0.66 0.74 0.83 0.93 0.64 0.72 0.80 0.90 1.01 0.79 0.86 0.93 1.00 1.06 1.12 0.91 0.95 0.99 1.03 1.06 1.10 1.17 1.23

App ro xi mate Outside Diameter Inch 0.104 0.131 0.148 0.166 0.185 0.208 0.234 0.263 0.295 0.331 0.377 0.423 0.474 0.533 0.599 0.653 0.714 0.773 0.825 0.876 0.922 0.969 1.013 1.053 1.094 1.131 1.169 1.239 1.307

mm 2.64 3.33 3.76 4.22 4.70 5.28 5.94 6.68 7.49 8.41 9.58 10.7 12.0 13.5 15.2 16.6 18.1 19.6 21.0 22.3 23.4 24.6 25.7 26.7 27.8 28.7 29.7 31.5 33.2

App ro xi mate Wei gh t Copper Pounds per 1,000 ft 20.3 32.3 40.8 51 65 82 103 130 164 207 264 334 419 529 668 795 945 1,110 1,265 1,425 1,585 1,750 1,910 2,070 2,230 2,385 2,545 2,860 3,180

kg/km 30.3 48.2 60.7 76.6 96.6 122 154 194 244 308 392 495 623 786 991 1,175 1,410 1,650 1,885 2,120 2,355 2,600 2,840 3,075 3,310 3,545 3,785 4,255 4,730

* The constructions shown in this table are typical of t hese used in the industry. It is not intended that this table preclude other constructions using the same total number of wires which may be desirable for specific applications.



Table K-4 Rope-Lay Copper Conducto rs Class H Conductor Size

8 7 6 5 4 3 2 2 1 1/0 2/0 3/0 3/0 4/0 4/0 250 300 350 400 450 500 550 600 650 700 750 800 900 1,000

Number of Strands

133 133 133 133 133 133 133 259 259 259 259 259 427 259 427 427 427 427 427 427 427 703 703 703 703 703 703 703 703

* Suggested Construction

19 x 7 19 x 7 19 x 7 19 x 7 19 x 7 19 x 7 19 x 7 37 x 7 37 x 7 37 x 7 37 x 7 37 x 7 61 x 7 37 x 7 61 x 7 61 x 7 61 x 7 61 x 7 61 x 7 61 x 7 61 x 7 37 x 19 37 x 19 37 x 19 37 x 19 37 x 19 37 x 19 37 x 19 37 x 19

App ro xi mate Diameter of Each Strand

App rox im ate Outside Diameter

Inch

mm

Inch

mm

0.0111 0.0125 0.0140 0.0158 0.0177 0.0199 0.0223 0.0160 0.0180 0.0202 0.0227 0.0255 0.0198 0.0286 0.0223 0.0242 0.0265 0.0286 0.0306 0.0325 0.0342 0.0280 0.0292 0.0304 0.0316 0.0327 0.0337 0.0358 0.0377

0.28 0.32 0.36 0.40 0.45 0.51 0.57 0.41 0.46 0.51 0.58 0.65 0.50 0.73 0.57 0.61 0.67 0.73 0.78 0.83 0.87 0.71 0.74 0.77 0.80 0.83 0.86 0.91 0.96

0.167 0.188 0.210 0.237 0.266 0.299 0.335 0.336 0.378 0.424 0.477 0.536 0.535 0.601 0.602 0.653 0.716 0.772 0.826 0.878 0.923 0.980 1.022 1.064 1.106 1.145 1.180 1.253 1.320

4.24 4.78 5.33 6.02 6.76 7.59 8.51 8.53 9.60 10.8 12.1 13.6 13.6 15.3 15.3 16.6 18.2 19.6 21.0 22.3 23.4 24.9 26.0 27.0 28.1 29.1 30.0 31.8 33.5

App ro xi mate Wei gh t Pounds per 1,000 ft 52 65 82 105 132 167 208 210 266 334 422 533 532 670 675 795 953 1,110 1,270 1,435 1,590 1,770 1,920 2,085 2,255 2,410 2,560 2,895 3,205

kg/km 77.4 97.5 123 155 196 247 311 312 394 497 626 790 794 996 1,000 1,180 1420 1,655 1,890 2,130 2,365 2,625 2,865 3,105 3,340 3,580 3,820 4,295 4,775

* The constructions shown in this table are typical of t hese used in the industry. It is not intended that this table preclude other constructions using the same total number of wires that may be desirable for specific applications.



Table K-5 Copper Conductors Class I - Each Ind ivid ual Strand 24 AWG, 0.0201 Inch (0.511 mm) Conductor Size AWG or kcmil 10 9 8 7 6 5 4 3 2 1 1/0 2/0 3/0 4/0 250 300 350 400 450 500 550 600 650 700 750 800 900 1,000

App ro xi mate Number of Strands

26 33 41 52 63 84 105 133 161 210 266 342 418 532 637 735 882 980 1,127 1,225 1,372 1,470 1,596 1,729 1,862 1,995 2,261 2,527

* Suggested Construction

1 x 26 1 x 33 1 x 41 1 x 52 7x9 7 x 12 7 x 15 7 x 19 7 x 23 7 x 30 19 x 14 19 x 18 19 x 22 19 x 28 7 x 7 x 13 7 x 7 x 15 7 x 7 x 18 7 x 7 x 20 7 x 7 x 23 7 x 7 x 25 7 x 7 x 28 7 x 7 x 30 19 x 7 x 12 19 x 7 x 13 19 x 7 x 14 19 x 7 x 15 19 x 7 x 17 19 x 7 x 19

App ro xi mate Outside Diameter Inch

mm

0.125 0.138 0.156 0.185 0.207 0.235 0.263 0.291 0.319 0.367 0.441 0.500 0.549 0.613 0.682 0.737 0.800 0.831 0.894 0.941 0.980 1.027 1.152 1.194 1.235 1.290 1.372 1.427

3.18 3.51 3.96 4.70 5.26 5.97 6.68 7.39 8.10 9.32 11.2 12.7 13.9 15.6 17.3 18.7 20.3 21.1 22.7 23.9 24.9 26.1 29.3 30.3 31.4 32.8 34.8 36.2

App ro xi mate Wei gh t

Pounds per 1,000 ft 32.5 41 51 65 80 105 134 169 205 267 342 439 537 683 825 955 1,145 1,270 1,460 1,590 1,780 1,905 2,090 2,260 2,435 2,610 2,965 3,305

kg/km 48.3 61.3 76.1 96.5 119 159 199 252 305 397 508 654 799 1,015 1,230 1,420 1,700 1,890 2,175 2,365 2,645 2,835 3,110 3,365 3,625 3,885 4,405 4,920

* The constructions shown in this table are typical of t hese used in the industry. It is not intended that this table preclude other constructions using the same total number of wires that may be desirable for specific applications.



Table K-6 Copper Conductors Class K - Each Indiv idual Strand 30 AWG, 0.0100 Inch (0.254 mm) Conductor Size AWG or kcmil 14 12 10 9 8 7 6 5 4 3 2 1 1/0 2/0 3/0 4/0 250 300 350 400 450 500 550 600 650 700 750 800 900 1,000

App rox im ate Number of Strands

41 65 104 133 168 210 266 336 420 532 665 836 1,064 1,323 1,666 2,107 2,499 2,989 3,458 3,990 4,522 5,054 5,453 5,985 6,517 6,916 7,581 7,980 9,065 10,101

*Suggested Construction

1 x 41 1 x 65 1 x 104 7 x 19 7 x 24 7 x 30 7 x 38 7 x 48 7 x 60 19 x 28 19 x 35 19 x 44 19 x 56 7 x 7 x 27 7 x 7 x 34 7 x 7 x 43 7 x 7 x 51 7 x 7 x 61 19 x 7 x 26 19 x 7 x 30 19 x 7 x 34 19 x 7 x 38 19 x 7 x 41 19 x 7 x 45 19 x 7 x 49 19 x 7 x 52 19 x 7 x 57 19 x 7 x 60 37 x 7 x 35 37 x 7 x 39

App ro xi mate Ou tsi de Diameter Inch

mm

0.078 0.101 0.126 0.150 0.157 0.179 0.210 0.235 0.272 0.304 0.338 0.397 0.451 0.470 0.533 0.627 0.682 0.768 0.809 0.878 0.933 0.988 1.056 1.125 1.166 1.207 1.276 1.305 1.323 1.419

1.98 2.57 3.20 3.81 3.99 4.55 5.33 5.97 6.91 7.72 8.59 10.1 11.5 11.9 13.5 15.9 17.3 19.5 20.5 22.3 23.7 25.1 26.8 28.6 29.6 30.7 32.4 33.1 33.6 36.0

App rox imat e Weigh t Pounds per 1,000 ft 12.8 20.3 32.5 42 53 66 84 106 132 169 211 266 338 425 535 676 802 960 1,120 1,290 1,465 1,635 1,765 1,940 2,110 2,240 2,455 2,585 2,935 3,270

kg/km 18.8 29.9 47.8 62.3 78.7 98.4 125 157 197 252 315 395 503 632 795 1,005 1,195 1,425 1,665 1,925 2,180 2,435 2,630 2,885 3,140 3,335 3,655 3,845 4,370 4,870

* The constructions shown in this table are typical of t hese used in the industry. It is not intended that this table preclude other constructions using the same total number of wires which may be desirable for specific applications.


ANSI∕NEMA WC 58(ICEA S-75-381-2008)

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