12-TMSS-10-R0

TRANSMISSION MATERIALS STANDARD SPECIFICATION


12-TMSS-10, Rev. 0

TABLE OF CONTENTS

1.0

SCOPE

2.0

CROSS REFERENCES

3.0

APPLICABLE CODES AND STANDARDS

4.0

DESIGN AND CONSTRUCTION REQUIREMENTS 4.1 4.2 4.3 4.4 4.5

5.0

TESTS 5.1 5.2 5.3

12TMSS10R0/YAM

General Design Criteria Materials Fabrication Marking

Design (Type) Tests Production (Routine) Tests Special Tests

6.0

SPECIFIC PACKING INSTRUCTIONS

7.0

DATA SCHEDULE

Date of Approval: May 30, 2006

PAGE NO. 2 OF 19


1.0

12-TMSS-10, Rev. 0

SCOPE This Specification describes the minimum technical requirements for design, engineering, manufacture, inspection, testing and performance of Splice or Termination Kits for Power Cables rated 69, 110 , 115, 132, 230 or 380 kV, intended to be used in the electrical system of Saudi Electricity Company, Saudi Arabia.

2.0

CROSS REFERENCES This Material Standard Specification shall be read in conjunction with the latest revision of SEC General Specification No. 01-TMSS-01 titled "General Requirements for All Equipment/ Materials", which shall be considered as an integral part of this TMSS. This TMSS shall also be read in conjunction with SEC Purchase Order or Contract Schedules for project, as applicable.

3.0

APPLICABLE CODES AND STANDARDS The latest revision/amendments of the following Codes and Standards shall be applicable for the equipment/material covered in this TMSS. In case of conflict, the vendor/ manufacturer may propose equipment/material conforming to one group of Industry Codes and Standards quoted hereunder without jeopardizing the requirements of this TMSS. 3.1

IEC 60141-1

Oil-filled, paper or polypropylene paper laminated insulated, metal-sheathed cables and accessories for alternating voltages up to and including 500kV

3.2

IEC 60466

A.C. insulation-enclosed switchgear and control gear for rated voltages above 1kV and up to and including 38kV

3.3

IEC 60507

Artificial pollution tests on high-voltage Insulators to be used on A.C. systems

3.4

IEC 60840

Power cables with extruded insulation and their accessories for rated voltages above 30kV (U m=36kV) up to 150kV (Um=170kV)-Test methods and requirements

3.5

IEC TS 60859

Cable connections for gas-insulated metal-enclosed switchgear for rated voltages of 72.5kV and above-Fluid-filled and extruded insulation cables-Fluid-filled and dry type cable-terminations

3.6

IEC 62067

Power cables with extruded insulation and their accessories for rated voltages above 150kV (U m=170kV) up to 500kV (Um=550kV)-Test methods and requirements

3.7

IEEE 48

Test Procedures and Requirements for Alternating-Current Cable Terminations 2.5kV Through 765kV

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4.0

12-TMSS-10, Rev. 0

3.8

IEEE 404

Extruded and Laminated Dielectric Shielded Cable Joints Rated 2500V to 500000V

3.9

IEEE 1300

Guide for Cable Connections for Gas-Insulated Substations

3.10

ASTM E 28

Standard Test Methods for Softening Point of Resins Derived from Naval Stores by Ring-and-Ball Apparatus

3.11

ASTM G 154

Standard Practice for Operating Fluorescent Light Apparatus for UV Exposure of Nonmetallic Materials

3.12

NEMA CC1

Electric Power Connectors for Substations

3.13

NEMA CC3

Connectors for Use between Aluminum or Aluminum-Copper Overhead Conductors

DESIGN AND CONSTRUCTION REQUIREMENTS 4.1

4.2

General 4.1.1

The splice or termination kits shall meet or exceed the requirements of this Specification in all respects.

4.1.2

Manufacturer's drawings shall show all components of the splice or termination, together with all pertinent dimensions for SEC review. The dimensions of cable termination interfaces for SF6 Gas Insulated Switchgear (GIS) shall meet the requirements of IEC TS60859 or IEEE 1300. Any variations in these dimensions due to manufacturing tolerances shall be indicated.

Design Criteria 4.2.1

The design and construction of the splice shall essentially meet the latest requirements of IEC 60141-1, IEC 60840, IEC 62067 or IEEE 404. The design and construction of the termination shall essentially meet the latest requirements of IEC 60141-1, IEC 60840, IEC 62067 or IEEE 48. The ratings shall be as indicated in the Data Schedule.

12TMSS10R0/YAM

4.2.2

The splice or termination shall be designed for service conditions specified in 01-TMSS-01 and suitable to work with power cable having maximum emergency loading temperature of 105ºC for 3 hours.

4.2.3

All components of the splice or termination shall perform without distress under normal cyclic loading and fault conditions. When the dielectric strength of the cable termination is dependent upon taping or the use of Date of Approval: May 30, 2006

PAGE NO. 4 OF 19


12-TMSS-10, Rev. 0

auxiliary insulation, such insulation shall be used when any design (type) tests are performed. 4.2.4

Splice shall be provided with waterproofing, mechanical protection, and completely sealed from jacket to jacket of the cable ends to be jointed. Heat transfer interface within the splice shall have positive contact to the compression connector. The splice design shall also prevent the presence of air especially at stress points.

4.3

4.2.5

Depending on the type of bonding system for power cable, splice and termination shall be provided with a sheath sectionalizer / shield break insulation. Metallic sheaths from both sides of the cable splice shall be overlapped across the sheath sectionalizing insulation before taking any exit in cross-bonded splice.

4.2.6

The jacket tubing, if needed, shall be generally suitable for indoor and outdoor installation, be ultraviolet and chemical resistant and with or without adhesive coatings. It shall also be capable of being stored without damage at temperatures not exceeding 50°C.

4.2.7

Components shall not be adversely affected in any manner by contact with other materials normally used in the construction of cable joints and shall not increase the rate of corrosion of any metal with which they may come in contact.

4.2.8

The termination shall be Class 1 per IEEE 48 or equivalent. For apparatus terminations, the temperature of the medium in direct contact with the termination (ambient inside enclosure) shall not exceed 55ºC. Oil used in indoor terminations shall be preferably silicone oil.

4.2.9

All terminations to Low Pressure Oil Filled (LPOF) power cable and GIS shall employ, as a minimum, a double sealing method per IEC 60859 to prevent leakage of SF6 gas and oil. Details of the sealing method shall be submitted by the bidder for review and approval of SEC. The seals shall have a life expectancy of not less than 30 years.

4.2.10

Cable termination manufacturer shall provide and install the non-linear resistance/surge arresters, symmetrically between the GIS-side flange and ground, at the cable termination with GIS having shield break insulation to bypass very fast transients generated in GIS per IEC 60859 or IEEE 1300.

Materials 4.3.1

Connector (If Provided) a.

12TMSS10R0/YAM

The connector material shall be suitable for aluminum or copper conductors. Copper to copper cable connections shall use copper connectors. Aluminum to aluminum cable connections shall use aluminum connectors. Copper to aluminum cable connections shall Date of Approval: May 30, 2006

PAGE NO. 5 OF 19


12-TMSS-10, Rev. 0

use suitable bimetallic connectors for the purpose. For outdoor and indoor terminations, all connectors shall be tin-plated. b.

Connectors used for aluminum-to-aluminum cable connections and copper to aluminum cable connections shall be tested per ANSI C119.4 or equivalent IEC standard for thermal and mechanical withstand capabilities. Similar test protocol shall be followed for connectors used for copper-to-copper cable connections.

c.

For connections wherein the conductor of the cable and the connector are of the same material, the effective cross-sectional area of the connector shall at least equal the size of conductor of the cable.

d.

Both compression and mechanical type connectors are acceptable. However, mechanical type connector shall be subject to initial approval by SEC. Welding type connectors are acceptable but solder type connectors are not acceptable.

e.

Terminal pad hole size and spacing shall be as per NEMA CC 1 requirements. The number of holes shall be as follows: CABLE SIZE For 400 mm² to 500 mm² For 630 mm² and above

4.3.2

12TMSS10R0/YAM

NO OF HOLES 2 or 4 4

Splice Insulation a.

The splice insulation material can be heat shrinkable, premolded or laminated types. It shall equal or exceed the electrical and physical properties of the cable insulation.

b.

For heat shrinkable materials, the diameter shall reduce to a predetermined size upon application of heat in excess of 120°C yielding a maximum longitudinal shrinkage of 5%.

c.

The recovered wall thickness of heat shrink insulation tubing over the connector shall be uniform and equal to or greater than the cable insulation thickness as given in Data Schedule.

d.

The adhesive for heat shrinkable material shall have a softening temperature not less than 90°C, in accordance with ASTM E28. The same shall be compatible with other components of the joint and cable, and after installation shall not flow at normal service temperatures. Date of Approval: May 30, 2006

PAGE NO. 6 OF 19


4.3.3

4.3.4

12-TMSS-10, Rev. 0

Splice Jacket (If required) a.

The splice jacket shall be a heat shrinkable tube made of material compatible with the cable jacket. SEC uses power cables with black PVC (type ST2), linear low-density polyethylene (LLDPE) ST7 and linear medium density polyethylene (LMDPE) ST7 jackets as per IEC 60840 & 62067. The splice jacket shall be ultraviolet resistant.

b.

The recovered wall thickness of splice jacket shall match or exceed the thickness of the cable jacket.

c.

The splice jacket shall be able to withstand an acceptance voltage test of 10 kV dc for 1 minute after installation.

Splice and Termination Stress Control The stress control material can be heat shrinkable, premolded (siliconerubber, epoxy or EPDM) or laminated types, enclosed in porcelain, epoxy insulator or outer heat shrinkable tubing. Premolded type having springs on both sides of the splice is not acceptable.

4.3.5

4.3.6

Termination Porcelain Insulator or Outer Tubing a.

The porcelain insulator shall be brown with standard glaze.

b.

The heat shrinkable outer tube shall be ultra violet resistant and drip water resistant. The outer tube may be provided on resin glass-fiber tube to guarantee maximum strength during short circuit.

Grounding Necessary grounding materials shall also be included in the kit.

4.4

Fabrication 4.4.1

12TMSS10R0/YAM

General a.

Splices and terminations shall be supplied in complete kit form with all materials and components required to complete the installation. Connectors may be included in the kit.

b.

Components supplied with adhesive coatings shall have means to prevent the coated surfaces from adhering to other non-coated components.


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4.5

12-TMSS-10, Rev. 0

c.

In case of shielded cable, all items needed for wire or tapes clamping, roll springs, sheath sectionalizing/shield break insulation (if required) shall also be included.

d.

Wherever necessary the cable enclosure and termination support structure shall be equipped with means for isolating the cable sheath to provide cathodic protection of the cable system per IEC 60859 or IEEE1300.

Marking 4.5.1

Splice Kits A suitable nameplate shall be provided in the splice kit giving the following information :

4.5.2

a.

Manufacturer's name/logo, part identification and date of manufacture

b

Factory Name & Location

c.

Maximum voltage rating

d.

Cable insulation diameter range, for premolded splice only

e.

Conductor size in mm²

f.

12-TMSS-10, Rev. 0

Termination Kits A suitable nameplate shall be provided in the termination kit giving the following information :

12TMSS10R0/YAM

a.

Manufacturer's name

b.

Type of termination

c.

Designation no.

d.

IEEE terminator class no.

e.

Insulation class

f.

Maximum design voltage to ground

g.

Maximum and Minimum cable conductor size

h.

Maximum and Minimum cable insulation diameter

i.

BIL

j.

BSL (for 380kV insulation class)

k.

Rated internal pressure, kPa

l.

Date of Manufacture

m.

12-TMSS-10, Rev.0 Date of Approval: May 30, 2006

PAGE NO. 8 OF 19


4.5.3

12-TMSS-10, Rev. 0

Connector Kits For compression type connectors, the surface shall be marked with crimp position knurls, die index number and manufacturer's code number.

5.0

TESTS All test results shall be provided for review and acceptance by SEC. 5.1

Design (Type) Tests 5.1.1

Splice Kits for XLPE Insulated Power Cables All splice kits for 69, 110, 115, 132, 230 or 380kV cable systems shall be tested per IEC 60840, IEC 62067 or IEEE 404.

5.1.2

Splice Kits for LPOF Power Cables All splice kits for LPOF cable systems shall be tested per IEC 60141-1 or IEEE 404.

5.1.3

Termination Kits All termination kits shall be tested per IEC 60141-1, IEC 60840, IEC 62067 or IEEE Std. 48. Cable termination interfaces for GIS shall also be tested per IEC TS 60859 or IEEE 1300.

5.1.4

The sheath sectionalizing/shield break insulation (if any) in splice and termination kits shall be tested to withstand: a.

10 kVdc for 1 minute.

b.

the maximum power frequency voltage arising between sheaths during a system through fault.

c.

1.2/50µsec. impulse voltage as below: Rated Lightning Impulse Withstand Voltage for Cable Insulation (kV peak ) Upto 325 550/650 950 1300

1.2/50µsec. Impulse Test Voltage (kV peak ) 60 75 95 125

Impulse withstand voltage between the sheath sectionalizing/shield break insulation and ground shall be 50% of the impulse test voltage mentioned above. 12TMSS10R0/YAM


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5.2

12-TMSS-10, Rev. 0

Production (Routine) Tests

5.3

5.2.1

Splice kits shall be tested per IEC 60141-1, IEC 60840, IEC 62067 or IEEE 404.

5.2.2

Termination kits shall be tested per IEC 60141-1, IEC 60840, IEC 62067 or IEEE 48.

Special Tests 5.3.1

In addition to the design (type) test given above, all outdoor termination kits shall undergo a humidity and condensation test per Appendix "BB" of IEC 60466 and salt fog test per Section 3 of IEC60507 with salt 3 concentration at 20ºC of 224 kg/m when specified in the data schedule.

5.3.2

The Vendor shall submit a Test Certificate proving the ultraviolet resistance of the heat shrink tube/polymer material. The test shall conform to the requirements of ASTM G 154. The material test specimen(s) shall be subjected to the following test sequence: a.

Eight (8) hours exposure to UV at a test temperature of 60°C followed immediately by,

b.

Four (4) hours exposure to condensation at a test temperature of 50°C.

The above sequence shall be consecutively repeated to a minimum of 252 cycles (i.e. total cumulative exposure to UV of 18 weeks minimum). The change in test specimen surface and original tensile strength and elongation shall be indicated in the Test Certificate. 6.0

SPECIFIC PACKING INSTRUCTIONS In addition to the applicable items in 01-TMSS-01, packing and shipping of the splice and termination parts shall also conform to the following: 6.1

All components of splices and terminations shall be clearly marked with the supplier's name and reference numbers.

6.2

Electrically conducting components shall be marked "conducting" clearly and permanently.

6.3

All components shall be capable of being stored without deterioration within the temperature range 0°C to + 50°C. Components or materials, if subject to a shelf life limitation, shall have the final date of use prominently and permanently shown on all packages.

12TMSS10R0/YAM


PAGE NO. 10 OF 19


6.4

12-TMSS-10, Rev. 0

Each splice and termination kit shall be packed in its own individual re-sealable hard board box, and the box shall be printed with the following minimum information: a. b. c. d. e. f.

6.5

Splice/Termination Catalog Number Purchase Order Number/Contract No./Job Order No. (as applicable) Manufacturer's Name Year of Manufacture SEC Item Number Expiry Date (if applicable)

Each crate shall be fixed with an aluminum plate giving the following information: a. b. c. d. e. f. g.

Purchase Order Number/Contract No./Job Order No. (as applicable) SEC Item Number Manufacturer's Name Year of Manufacture Splice/Termination Catalog Number Gross Weight in Kilograms Position of slinging points and other relevant handling instructions.

6.6

Each kit shall be disassembled only to such extent as may be necessary to facilitate field handling and to prevent damage during shipment.

6.7

Each kit shall include an installation instruction & step by step jointing procedure.

12TMSS10R0/YAM


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7.0

12-TMSS-10, Rev. 0

DATA SCHEDULE

SPLICE AND TERMINATION KITS FOR POWER CABLES RATED 69, 110, 115, 132, 230 OR 380kV SEC Enquiry No.

Date:

SEC Purchase Order No. or Contract No.

Date:

SEC PTS No./Project Title with J.O. No. REFERENCE SECTION NO. 3.0

DESCRIPTION

'A'

'C'

APPLICABLE CODES AND STANDARDS Applicable Industry Standard

4.0

'B'

*

DESIGN AND CONSTRUCTION REQUIREMENTS Catalog number (If applicable)

*

Type number of equipment (If applicable)

*

TYPE OF CABLE (XLPE OR LPOF) Nominal Voltage Rating, (kV) Conductor Size, (mm²) Conductor Material Diameter Over Conductor, (mm) Conductor Shield Thickness, (mm) Insulation Thickness, (mm) Diameter Over Insulation, (mm) Insulation Shield Thickness, (mm)

'A'- SEC SPECIFIED DATA/PARAMETER. 'B'- BIDDER/SUPPLIER/VENDOR/CONTRACTOR PROPOSED DATA/PARAMETERS. 'C'- REMARKS SUPPORTING THE PROPOSED DEVIATION IN COLUMN 'B'. (*)- DATA/PARAMETER TO BE PROVIDED/PROPOSED BY THE BIDDER/SUPPLIER/ VENDOR/CONTRACTOR IN COLUMN 'B'.

12TMSS10R0/YAM


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7.0

12-TMSS-10, Rev. 0

DATA SCHEDULE

SPLICE AND TERMINATION KITS FOR POWER CABLES RATED 69, 110, 115, 132, 230 OR 380kV REFERENCE SECTION NO.

DESCRIPTION

'A'

Metallic Shield Thickness, (mm) Metallic Shield Size, (mm²) and number Outer Jacket Material Outer Jacket Thickness, (mm) Outer Jacket Color Outer Jacket Conductive Layer Overall Cable Diameter, (mm) 1.0

'B'

'C'

Black

DETAILS FOR XLPE CABLE : Moisture Impervious Conductor (if any)

Layer

for Semi conducting compatible with the conductor and the insulation. Super clean XLPE Semi conducting compatible with the XLPE insulation.

Conductor Shield Material

Insulation Material

Insulation Shield Material

Moisture Impervious Layer-1 Thickness, mm Metallic Shield Material Moisture Impervious Layer-2 Thickness, mm Moisture Impervious Layer-3 Thickness, mm (if any)

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7.0

12-TMSS-10, Rev. 0

DATA SCHEDULE

SPLICE AND TERMINATION KITS FOR POWER CABLES RATED 69, 110, 115, 132, 230 OR 380kV REFERENCE SECTION NO. 2.0

DESCRIPTION

'A'

'B'

'C'

DETAILS FOR LPOF CABLE : Oil Channel external diameter, (mm) Helix Material Conductor material

Conductor Shield Material

Insulation Material

Insulation Shield Material

Metallic Sheath Material

Steel Copper Metallized paper tape or semiconducting paper tape Laminated Paper Metallized paper tape or semiconducting paper tape Extruded Lead alloy or seamless tube of corrugated aluminum

Metallic Sheath Binder Tape Material Metallic Sheath Binder Tape Thickness, (mm) Reinforcing Layer (for lead alloy sheathed cable only) Material

12TMSS10R0/YAM


PAGE NO. 14 OF 19


7.0

12-TMSS-10, Rev. 0

DATA SCHEDULE


DESCRIPTION

'A'

'B'

'C'

Reinforcing Layer Thickness (mm) Sealing compound Material Cable Oil Type 3.0

Reference Manufacturing Standard for splice or termination

*

4.0

Manufacturer's Designation

*

Type of kit (Splice or Termination) Sheath sectionalizer/shield break Insulation provided Non-linear resistance/surge arrester ratings (kV,Kj/kV) 4.2.1

*

Yes/No

Ratings a. Insulation or Voltage Class, (69,110, 115, 132, 230 or 380 kV) b. Maximum Design Voltage to Ground, (kV) For 69 kV For 110 kV For 115 kV For 132 kV For 230 kV For 380 kV

44 71 73 84 146 241

c. Continuous Current Carrying Capability, (A)

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7.0

12-TMSS-10, Rev. 0

DATA SCHEDULE


DESCRIPTION

d. Temperature Rating, (°C) For XLPE Cable For LPOF Cable e.

'A'

'B'

'C'

90 85

Emergency Temperature Rating, (°C) For XLPE Cable For LPOF Cable

f.

Basic Lightning Impulse Insulation Level (BIL), (kV) For 69 kV For 110 kV For 115 kV For 132 kV For 230 kV For 380 kV

g.

* * * * * *

Basic Switching Impulse Insulation Level (BSL), (kV) for 380 kV only *

h. Rated LPOF Internal Pressure, (kPa) (if applicable) i.

System Short Circuit Current, (kArms)

12TMSS10R0/YAM


PAGE NO. 16 OF 19


12-TMSS-10, Rev. 0

7.0 DATA SCHEDULE SPLICE AND TERMINATION KITS FOR POWER CABLES RATED 69, 110, 115, 132, 230 OR 380kV REFERENCE SECTION NO. j.

DESCRIPTION

'B'

'C'

Short Circuit Current Rating for 1 second, (kArms)

k. Maximum Short Circuit Conductor Temperature, (°C) For XLPE Cable For LPOF Cable l.

'A'

Maximum Continuous Temperature, (°C)

Permissible Conductor

For XLPE Cable For LPOF Cable m. Maximum Emergency Temperature, (°C)

250 200

90 85 Permissible Conductor

For XLPE For LPOF n. Termination Class Leakage Distance, (mm) Outdoor For 69 kV For 110 kV For 115 kV For 132 kV For 230 kV For 380 kV

12TMSS10R0/YAM

1

2760 4400 4600 5280 9200 15200


PAGE NO. 17 OF 19


12-TMSS-10, Rev. 0

7.0 DATA SCHEDULE SPLICE AND TERMINATION KITS FOR POWER CABLES RATED 69, 110, 115, 132, 230 OR 380kV REFERENCE SECTION NO.

DESCRIPTION

'A'

'B'

'C'

Indoor For 69kV 4.2.9

1725

Sealing Method, minimum Dielectric fluid inside termination Seal Life Expectancy, (Y’rs.)

Double 30

4.3.1a Kit Contents (Provide Part Name, Quantity) * * * * * *

5.3.1

Special Tests (humidity and required?)

condensation

tests Yes/No

Net weight of each splice or termination kit, (kg) Packing Dimension, (mm) Separate Supply, List for same material, including year of supply

12TMSS10R0/YAM

* * Yes/No


PAGE NO. 18 OF 19


12-TMSS-10, Rev. 0

7.0 DATA SCHEDULE SPLICE AND TERMINATION KITS FOR POWER CABLES RATED 69, 110, 115, 132, 230 OR 380kV

A.

ADDITIONAL TECHNICAL INFORMATION OR FEATURES TO BE FURNISHED BY SEC:

B.

ADDITIONAL SUPPLEMENTARY DATA BIDDER/VENDOR/SUPPLIER/CONTRACTOR:

C.

OTHER PARTICULARS TO BE FILLED UP BY BIDDER/VENDOR/SUPPLIER/ CONTRACTOR:

OR

Actual Manufacturer of Equipment/Material

FEATURES

PROPOSED

BY

Vendor/Supplier/ Contractor

Name of the Company & Factory Location and address

Name and Signature of Authorized Rpresentative and Date Official Seal/Stamp of the Company & Date

12TMSS10R0/YAM


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12-TMSS-10-R0

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