Electrical and Instrumentation Requirements for Packaged Equ.pdf

TECHNICAL SPECIFICATION

DATE: 03 APR 2003

ELECTRICAL AND INSTRUMENTATION REQUIREMENTS FOR PACKAGED EQUIPMENT

IS100E BASE

ENGINEERING SERVICES BY KBR TECHNICAL SERVICES, INC.

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TABLE OF CONTENTS Section 1. 1.1 1.2 1.3 1.4 2. 2.1 2.2 2.3 3. 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 3.10 3.11 3.12 4. 4.1 4.2 4.3 4.4 4.5 4.6 5. 5.1 5.2 5.3 5.4 6. 6.1 6.2 6.3 6.4

Title Page No. GENERAL ......................................................................................................................................1 Scope..............................................................................................................................................1 Codes and Industry Standards .................. ............................ ................... .................. ................... ................... .................. ................... ................... .................. ..........2 .2 Government Regulations......... Regulations .................. ................... ................... .................. ................... ................... .................. ................... ................... ................. .................. ...........3 .3 General Requirements...... Requiremen ts....................... ................. ................................. ................ ................. ................. ................. ................... .......3 CONTROL SYSTEM PARAMETERS ............................................................................................3 General ................................. ................ ................. ................. ................................. ................ ................. ................. .................... ...................3 ................ ...3 Distributed Control System/Plant Control System Interface.......................... Interface................................... ................... .................... ..............3 ....3 Pneumatic Instruments.................. Instruments........................... ................... ................... ................... ................... .................. ................... ................... ................. .................. ..............4 ....4 .................................................................................................4 INSTRUMENT SPECIFICATIONS Design.............................................................................................................................................4 Instrument Instrume nt Installation....... Installatio n........................ ................. ................................ ................ ................................. ................. .................................... ................ .................... ........4 Flow .................. ........................... .................. ................... ................... .................. ................... ................... ................... ................... .................. ................ ................ ................... .................5 .......5 Level .................. ........................... ................... ................... .................. ................... ................... .................. ................... ................... ................... ................. ................ .................. ...............6 ......6 Pressure..........................................................................................................................................8 Temperature .................. ............................ ................... .................. ................... ................... .................. ................... ................... ................... ................. ................ ................... ............9 ..9 Control and Instrument Valves .................. ............................ ................... ................... ................... ................... ................... ................... ................. ................10 .........10 Programmable Logic Controllers (PLC).................. (PLC)............................ ................... .................. ................... ................... .................. ................... ..............11 ....11 Local Control Panels................. Panels ................. ................................. ................ ................. ................. ................. ................................. ................ ................. 11 Local Control Panel Wiring ................... ............................ .................. ................... ................... ................... ................... ................... ................... .................. .............12 ....12 Annunciators.................................................................................................................................13 Equipment Protection ................... ............................ ................... ................... ................... ................... ................... ................... .................. ................. ................. .............14 ....14 PIPING AND TUBING REQUIREMENTS ....................................................................................14 General ................................. ................ ................. ................. ................................. ................ ................. ................. .................... .................14 ................ .14 Process Connections Connectio ns ................................ ............... ................. ................................. ................ ................. ................. ................. ................. 15 Purging of Process Connections ................... ............................ .................. ................... ................... .................. ................... ................... ................. ..............15 ......15 Pneumatic Supply ................................ ............... ................. ................................. ................ ................. ................. ................. ................... ...16 Tubing ................................ ................ ................................. ................. ................. ................. .................................... ................ .................... ....................16 ................ ....16 Instrument Piping and Tubing Supports .................. ............................ ................... .................. ................... ................... .................. ................... .............16 ...16 ELECTRICAL REQUIREMENTS .................................................................................................17 Power Distribution.... Distributio n..................... ................. ................................. ................ ................. ................. ................. ................... .............. 17 Control Systems..................... Systems.... ................. ................. .................. ................. ................. .................... .............. 17 Grounding Groundin g ................. ................. ................. .................. ................. ................. .................. ............18 ............ 18 Wiring Methods ................................ ............... ................. ................. ................................. ................ ................. ................. .................... ......18 ADDITIONAL REQUIREMENTS ..................................................................................................22 Identification..................................................................................................................................22 Inspection Inspec tion and Testing............... Testing ................................ ................. ................................. ................ ................. ................................ ................ ................................. ................. 22 Preparation Preparat ion for Shipment ............................... ............... ................................. ................. ................. ................. .................... ........23 ........2 3 Documentation Requirements ................... ............................ ................... ................... ................... ................... ................... ................... .................. .................23 ........23

1. GENERAL 1.1 Scope 1.1.1 This specifies the requirements requirements for the specification, procurement, procurement, fabrication, inspection, and testing of electrical, instrumentation, control, and associated systems provided as part of packaged equipment. 1.1.2 The purpose of this specification specification is to define minimum technical requirements requirements for electrical, instrumentation and controls for equipment furnished as a package.


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1.1.3 The following notations notations are used throughout this Specification: Specification:  

Identifies requirements to be specified by Purchaser for Supplier’s Supplier’s information. Identifies items of supply that require Purchaser acceptance.

1.2 Codes and Industry Standards Applicable requirements requirements in the latest edition, revision, or addendum of the following following codes, standards, and references shall be considered an integral part of this Specification. Requirements modified by this this Specification, Purchaser’s referenced drawings, or a purchase order shall take precedence over pub lished specifications. AMERICAN NATIONAL STANDARDS INSTITUTE (ANSI) ANSI C80.1 "Rigid Steel Conduit-Zinc Conduit-Zinc Coated Coated (GRC)" AMERICAN PETROLEUM INSTITUTE (API) API MPMS Chapter 14, "Natural Gas Fluids Fluids Measurements" AMERICAN SOCIETY OF MECHANICAL ENGINEERS (ASME) ASME MFC-3M, MFC-3M, "Measurement of Fluid Fluid Flow in Pipes Pipes Using Orifice, Orifice, Nozzle, and Venturi" Venturi" ASME B31.3, "Process Piping" AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) ASTM A269, "Seamless and Welded Austenitic Austenitic Stainless Stainless Steel Tubing For General Service" Service" FLUID CONTROLS INSTITUTE (FCI) FCI 70-2, "Control Valve Seat Leakage" INTERNATIONAL ELECTROTECHNICAL COMMISSION (IEC) IEC 60751, "Industrial Platinum Platinum Resistance Thermometer Sensors" Sensors" INSTRUMENTATION SYSTEMS AND AUTOMATION SOCIETY (ISA) ISA 18.1, "Annunciator Sequences and Specifications" ISA 84.01, "Application of Safety Instrumented Systems for the Process Industries" NATIONAL ELECTRIC MANUFACTURERS ASSOCIATION (NEMA) NEMA 250, "Enclosures for Electrical Equipment (1000 Volts Maximum)" NEMA KS 1, "Enclosed and Miscellaneous Distribution Equipment Switches (600 volts Maximum)" NEMA MG-1, "Motors and Generators" NATIONAL FIRE PROTECTION ASSOCIATION (NFPA) NFPA 70, "National Electrical Code" (NEC) NFPA 496, "Purged and Pressurized Pressurized Enclosures Enclosures for Electrical Electrical Equipment" Equipment" UNDERWRITERS LABORATORIES (UL) UL 98, "Safety Enclosed and Dead-Front Switches" UL 198E, "Safety Class R Fuses" UL 913, "Standard for Safety Intrinsically Safe Apparatus and Associated Apparatus for Use in Class I, II, III, Division 1, Hazardous (Classified) Locations"


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1.3 Government Regulations Regulations Federal Standards and Instructions of the Occupational Safety and Health Administration (OSHA), including any requirements by state or local agencies that have jurisdiction where the equipment will be installed, shall apply. US DEPARTMENT OF LABOR, OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION (OSHA) OSHA 29 CFR 1910 - Occupational Safety and Health Standards 1.4 General Requirements 1.4.1  Instruments and electrical materials shall be furnished in accordance with the accepted list of Suppliers/Manufacturers. 1.4.2 Neither mercury nor asbestos shall be permitted. permitted. 1.4.3 Instruments and electrical components components and materials shall be listed by a recognized national national testing laboratory. 1.4.4 All pre-wired assemblies assemblies shall be UL listed or approved by a testing organization organization acceptable to the authority having jurisdiction. 1.4.5  Design, material, equipment, equipment, and installation shall meet the the specified passive electrical area classification without without purging. Purchaser will provide area classification classification requirements. 1.4.6 Within two weeks of the purchase award, the Supplier shall provide a preliminary preliminary estimate of interconnecting cabling/wiring cabling/wiring by type, size, and number of conductors. 2. CONTROL SYSTEM PARAMETERS 2.1 General 2.1.1  The control philosophy philosophy shall require documented Purchaser Purchaser review and acceptance. Purchaser acceptance shall not relieve Supplier of the responsibility of furnishing safe and functional equipment that meets all safety (fail-safe) and functional performance requirements. 2.1.2  A Purchaser/Engineering Contractor/Supplier Contractor/Supplier coordination coordination meeting shall be required to define, review, review, and accept operational specification and programming approach, unless otherwise specified, as detailed later. 2.1.3 Instrument ranges, pressure ratings, ratings, and materials of construction shall be based on specified specified fluid properties and data, operating conditions, and design basis. 2.2 Distributed Control Control System/Plant System/Plant Control System Interface Interface 2.2.1  Purchaser will specify specify the use and type of Distributed Control System (DCS), local Programmable Programmable Logic Controller (PLC), remote PLC, other microprocessor based systems, required instrumentation and interfaces for integration into into the overall control system. Content and method of integration shall require Purchaser acceptance. 2.2.2  Protocols and formats for the communication communication interface shall be provided as defined for for the project. 2.2.3 The failure mode of any instrument or related related control component shall take the packaged equipment to a safe state and ensure adequate reliability.


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2.3 Pneumatic Instruments 2.3.1 Pneumatic instruments shall shall normally operate with a nominal 20 psig psig (138 kPa) air supply and 3-15 psig (21-103 kPa) input and output signals. 2.3.2 Each pneumatic instrument shall shall have an individual air supply complete with with shutoff valve and air set (air filter/regulator with output gauge). 2.3.3 Pneumatic instruments instruments shall fail safe on supply failure, or control control signal failure. 3. INSTRUMENT SPECIFICATIONS 3.1 Design 3.1.1 All instrument process connections connections shall conform to the piping requirements requirements of Section 4.2. 3.1.2  Dedicated, independent instrument process connections shall be used for redundant redundant process measurements that are part of Safety Instrumented System (SIS) or that are required to enhance reliability. 3.1.3  Unless otherwise otherwise specified, process transmitters transmitters shall be used. The use of process switches requires requires Purchaser's acceptance. 3.1.4  Materials shall be suitable for the process process and environmental conditions conditions specified. If not specified, 316 stainless steel shall be used as a minimum. 3.1.5  Bodies of cast iron, ductile iron, iron, brass or bronze shall not be used for control valves, regulators, instrument valves, or level instrument chambers, except in water or air services in non-hazardous unclassified areas. Purchaser acceptance acceptance is required. 3.1.6 Instrumentation and control system shall shall be fully assembled, piped, and wired wired except as noted in Paragraph 3.1.7. 3.1.7 Instruments that require field field installation and items that were removed removed and shipped loose shall be identified on the drawings, packing packing lists, and on the item itself. The “shipped loose items list” shall be issued to Purchaser at the time of Supplier engineering. 3.1.8 All instrument equipment shall shall be enclosed in environmentally appropriate appropriate enclosures per NEMA 250. 3.2 Instrument Installation 3.2.1 Instruments shall be located and installed such that: a.

Accuracy and reliability are not impaired due to vibration, pulsation, temperature, or contamination. contamination.

b.

Device readability, functional operation, and maintainability maintainability are not impaired.

c.

The length of instrument instrument impulse lines connected to process pipelines or equipment is is minimized. minimized. Sufficient length shall be provided for high temperature processes so that the process temperature does not adversely affect the transmitter.

d.

Personnel can easily and safely inspect and perform maintenance and repair (e.g., not under grating or in any place or manner not providing a safe footing or access).


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3.2.2 To ensure accessibility, instruments (e.g., transmitters, transmitters, and control valves including their isolation valves) shall be located to satisfy one of the following conditions: a.

No higher than 6 feet above an unobstructed working platform platform level and no lower lower than 2 feet above skid deck surface

b.

No more than than 5 feet (1.82 m) vertically vertically or 1 foot (0.30 m) m) horizontally and 4 feet (1.2 m) vertically vertically from an elevated fixed platform (skid (skid deck). Minimum height location above above a fixed platform is 1 foot (0.3 m).

c.

No greater than 1.5 feet (0.45 m) from fixed ladders, or ladder access with with Purchaser acceptance.

3.2.3  Instruments requiring frequent calibration calibration or maintenance that are not accessible accessible from grade or a fixed platform shall require Purchaser Purchaser acceptance. Examples include in-line meters, meters, analyzers, sample systems, and safety system instruments. All access platforms and permanently affixed affixed ladders shall be furnished by the Package Equipment Supplier. 3.2.4 Instruments in steam, liquid, liquid, liquid-sealed, or condensing condensing service shall be located below the process connection point. 3.2.5 Instruments in gas or vapor (non-condensing) service service shall be self draining and located above their process connection point. Note: Instruments having purged impulse lines lines and seal loops may be mounted above or below process connection. 3.2.6 Local instruments that are not line-mounted line-mounted shall be supported using prefabricated NPS 2 Schedule 40 hot dipped galvanized pipe for instrument supports. 3.2.7 Instrument supports shall be securely securely anchored; of rigid construction; plugged or sealed sealed at top of the pipe to prevent water entry; provided with a 1/4 inch (6 mm) hole above the base plate to allow water drainage; not mounted on rails. 3.2.8 If possible, multiple instruments instruments in close proximity to one another shall shall be supported with an instrument support. 3.2.9 Welded areas, drilled holes, and pipe threads threads on galvanized steel pipestands shall be prepped and sprayed with cold galvanization. 3.3 Flow 3.3.1 Sizing Flow Instruments Instruments a.

Bernoulli type flow measurements such as concentric concentric square-edged orifice  Calculations for sizing Bernoulli meters, venturis, flow nozzles, and averaging Pitot tubes shall comply with API MPMS Chapter 14, Part 1, or ASME MFC-3M. MFC-3M. The normal flow readings should be between between 65% and 80% of maximum maximum process flow. The Beta ratio (ratio of orifice bore diameter to pipe internal diameter) shall be greater than or equal to 0.2 and less than or equal to 0.75.

b.

 Use manufacturer’s sizing and calculation methods for other types of flow meters.

3.3.2 Orifice Meter a.

Orifice plate material shall be 316 stainless steel, unless another material is required required for process reasons.

b.

Orifice plate style style shall be square edge type for use in orifice orifice flange sets.


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c.

Orifice plates in horizontal 2 inch (50 mm) or larger piping piping shall have drain holes in gas service having entrained liquids; vent holes in liquid service having entrained gas; effects of such holes on measurement accuracy noted or compensated for in calculations.

d.

ASME Class 300 rating. rating. The flange taps shall shall be  Orifice meter flange sets shall have a minimum ASME welded connections. Any deviations require Purchaser acceptance.

e.

In vertical lines, the flow shall be downward for for wet gases gases and saturated steam, and upward upward for liquids liquids containing vapor.

f.

Minimum pipe size size for orifice meter runs shall be 2 inches (50 (50 mm). mm).

g.

smaller than 2 inches.  The use of integral orifices may be used for flow metering in line sizes smaller

h.

i. j.

k.

Bernoulli type flow measurements such as orifice orifice meter straight run requirements shall comply with ASME MFC-3M MFC-3M or API MPMS Chapter 14, Part 2. No flow disturbance disturbance such as elbow, tee, valve or reducer shall be allowed in the required straight run. conditioners shall require Purchaser acceptance.  Use of straightening vanes or flow conditioners Thermowells for use in temperature correction of flow measurement data shall be located between 5 and 10 pipe diameters downstream of the orifice plate flow element. Supplier shall check thermowells for vibratory flow conditions.

3.4 Level 3.4.1 General a.

Differential pressure transmitters are preferred preferred for for process process level level measurement. measurement. Transmitters shall be provided with two valve manifolds.

b.

Level and interface instruments instruments shall shall be directly connected connected to vessels or standpipes, and shall not be connected to process lines.

c.

Piping from vessel to standpipe or level instruments shall not have traps or pockets.

d.

Piping from level gauges and external displacer type level instruments shall be self-draining into into a vessel or standpipe.

e.

services with process temperatures below -40 F (-40 C).  External standpipes shall not be used for services °

°

Level instruments for services with process temperatures below -40 F (-40 C) shall be individually connected directly to the vessel and shall require Purchaser acceptance. °

f.

°

level instrument unless the  There shall be a block valve between the vessel connection and the level instrument is designed to be mounted inside inside the vessel. Externally mounted instruments instruments are preferred over internally mounted instruments. instruments. Purchaser acceptance is required for installations installations where the instrument is is mounted inside the vessel.

g.

Probes that are internal to a vessel vessel shall conform to the electrical electrical area classification inside the tank (typically Class I, Division 1).

h.

Differences in specific specific gravity between the vessel contents and the external level piping or sealing fluids shall be taken into consideration for calibration of the level instrument.


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Level transmitters transmitters and level gauges shall be piped so that they can be independently independently isolated isolated for maintenance (i.e., do not install with only a single valve that will disable both the transmitter and the gauge).

3.4.2 The diaphragm seal fluid, seal leg fluid, fluid, and purge fluid of differential pressure pressure level instruments shall be compatible with the process fluid and ambient temperature extremes, and process/pressure vacuum conditions. 3.4.3 Installation of level transmitter transmitter remote diaphragm seals shall shall comply with the following: following: a.

Transmitters shall be mounted at or below the high-pressure nozzle (vessel lower nozzle), nozzle), below lowest anticipated operating liquid level.

b.

Provide a bleed bleed ring between the block block valve valve and the diaphragm diaphragm seal.

c.

Capillary tubing shall be of sufficient length length to account for routing requirements, requirements, shall be armored, and shall be furnished in manufacturer’s standard lengths.

d.

Capillary tubing seal legs shall shall be mechanically protected and adequately adequately supported. supported.

e.

Excess capillary tubing shall be coiled coiled at the receiving receiving device. device.

f.

Capillary lines shall shall be routed away away and/or insulated ifif they pass by steam or high temperature temperature heat transfer media jackets on a vessel or other high temperature sources.

g.

Capillary length of both seal legs shall be identical on differential differential pressure transmitter remote seals.

3.4.4  Displacement Instruments a.

Displacement type level instruments shall not be used for for extremely extremely viscous materials, for services services which have agitated fluids, for services that coat or build up deposits on the displacer or rod, or for any service that requires purging to prevent plugging and/or sticking or excessive condensation or vaporization of fluids in the chamber due to temperature differences between the vessel and level displacer chamber.

b.

measurement range exceeds 48 inches (1219 mm), application shall require require  If displacement type level measurement Purchaser acceptance.

c.

Displacement type level transmitters shall have rotatable heads.

d.

Displacement type level transmitters and switches switches in services services with process liquid temperatures below below 0 F o o ( -18 C) or above 400 F (204 C) shall have air fins or other means of isolating the device from the process temperature in accordance with the recommendations of the transmitter/switch manufacturer. °

°

e.

Displacer chambers shall have material and Maximum Allowable Working Pressure Pressure (MAWP) (MAWP) equal to or greater than that of the vessel.

f.

Displacer chambers shall have vent valves and drain valves.

g.

To prevent possible displacer displacer damage, displacer chambers shall be isolated and vented or the level instrument shall be removed during vessel hydrotest.

h.

Displacer element assembly shall comply with the following: 1.

All wetted parts parts materials materials shall be compatible compatible with with the process fluid. fluid.

2.

Displacer element element shall be freely suspended in in the liquid (i.e., it shall not contact contact the bottom bottom or sides of the chamber or any process material buildup in the chamber).

TECHNICAL SPECIFICATION ELECTRICAL AND INSTRUMENTATION REQUIREMENTS FOR PACKAGED EQUIPMENT

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DATE: 03 APR 2003

i.

3.

The displacer shall be preassembled and installed vertically.

4.

For measuring measuring liquid-liquid liquid-liquid interface, the displacer element shall be completely submerged.

Liquid-liquid interface level measurements using standard standard displacers displacers shall require a difference difference in specific specific gravity of the two liquids greater than 0.2.

3.4.5 Level Gauges a.

Magnetic level gauges are preferred preferred for hazardous liquid liquid applications. applications. Flat glass reflex reflex type shall be used for all other applications. Pad type reflex welded-in gauge glass is acceptable for for lube and hydraulic reservoir applications.

b.

Gauges shall have vent and drain valves.

c.

Installation shall include provisions provisions for isolating in in the gauge to allow for for cleaning. cleaning.

d.

Tubular glass gauges shall not be allowed.

e.

tempered Borosilicate, Pyrex Pyrex or equal glass  For reflex glass gauges and transparent glass gauges, tempered

®

shall be used in applications at or below 450 F (232 C). Purchaser acceptance is required for for service between 450 F (232 C) and 600 F (315 C). °

°

f.

°

°

°

°

Purchaser acceptance.  Transparent glass gauges shall require Purchaser

3.5 Pressure 3.5.1 General a.

b.

c.

Pressure measurement points for gas or vapor service service shall meet the following criteria: 1.

Use top or side taps.

2.

Mount transmitters transmitters above the pressure pressure taps and slope impulse lines downward downward to the root valve one inch per foot.

Pressure measurement measurement points for liquid and condensing service shall shall meet the following following criteria: 1.

Use side taps.

2.

Mount transmitters transmitters below the pressure taps and and slope impulse lines upward to the root valve one inch per foot.

diaphragm seals if used in viscous fluids, slurries, slurries, or corrosive  Pressure instruments shall have diaphragm applications for fluids not compatible with measuring element material.

d.

Pressure transmitters and liquid filled pressure gauges shall have integral pulsation dampeners dampeners in oscillating services.


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3.5.2 Pressure Gauges a.

Nominal diameter diameter shall be 4 1/2 inch (114 mm) externally threaded threaded connection of 1/2 inch MNPT with wrench flats, stainless steel steel Bourdon tube and socket, unless the process conditions dictate dictate otherwise. The case shall be solid front, weatherproof, weatherproof, with blowout backs or disks, stainless stainless steel or phenolic. A visible stop pin at the six o'clock position shall be provided. provided. Gauge window shall be double strength, shatter shatter resistant safety glass. The window shall be gasketed on the bezel side by means of a resilient resilient gasket and held in place from the case side by means of a threaded retainer ring. ring. Siphons shall be provided as required by application.

b.

When measuring measuring pulsating pulsating pressure, suitable dampening methods shall be employed (glycerin/silicon (glycerin/silicon oil filled gauges, dampening devices etc.). etc.). Fluorolube shall be used on the following services: services: chlorine, nitric acid, or hydrogen peroxide.

c.

Pressure gauges shall have a nominal working working pressure is between between 30% and 70% of scale scale range. Ensure the maximum working pressure does not exceed the scale range.

d.

Pneumatic instruments shall have have manufacturer’s manufacturer’s standard integral pressure gauges provided on local controllers and valve positioners.

3.5.3  Pressure switches, when accepted by the Purchaser, Purchaser, shall have diaphragm type process sensing units of all welded construction. 3.6 Temperature 3.6.1 General a.

Use of temperature switches shall not be allowed.

b.

Temperature elements shall shall be provided as complete assemblies, including element, thermowell, and termination head.

c.

Thermowell connection types shall shall conform conform to Table Table 1 in Section Section 4.2.

d.

Thermocouples and Resistance Resistance Temperature Temperature Detectors Detectors (RTDs) (RTDs) shall shall be stainless steel steel (or Inconel) sheathed, mineral-insulated construction.

e.

Process and utility utility fluid fluid temperature sensing devices devices shall be mounted in thermowells. thermowells.

f.

A dual temperature element shall not be used to provide separate signals signals to different instruments or redundant inputs to a logic control system.

g.

Thermocouple and RTD termination heads shall be copper free cast aluminum and weatherproof to a minimum NEMA 4 and NEMA 7 or 9 if explosion proof is required. Heads shall have a minimum of three terminals for thermocouples and four for RTDs and have 3/4-inch NPT conduit connections.

h.

RTDs are preferred up to 600 C.

i.

requirement.  Establish upscale or downscale burnout requirement.

°

3.6.2 Thermocouple types shall shall be Type K. Duplex thermocouples, if used, shall both be terminated in the the head. Thermocouples shall be ungrounded.


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3.6.3 Process temperature and machinery bearing bearing and motor winding temperature RTDs RTDs shall be 3- or 4-wire construction, as specified on the completed completed Data Sheet. RTD's shall have a platinum sensor of 100 ohms at 0 C with a temperature coefficient of 0.00385 ohms/ohm/ C and comply with IEC 60751 (equivalent to DIN 43760, ASTM 1137). °

°

3.6.4  Use of filled thermal system instruments instruments shall require Purchaser acceptance. acceptance. 3.6.5 Thermowells a.

Thermowells shall not be located between suction screens and inlets of pumps, compressors, compressors, or turbines.

b.

Construction of thermowells thermowells shall be of stainless steel material, 316 minimum, except where process conditions require other alloys; be fabricated from solid barstock; have a bore diameter of 0.26 inch (6.6 mm) for thermocouples and RTD RTD sensors; have process connections per Table 1, Section Section 4.2. The body and flange shall be of the same material.

c.

Thermowell lengths shall be confirmed as suitable for the maximum fluid fluid velocity and resulting vibration.

d.

Where practical, practical, thermowell thermowell shall be installed in a piping elbow pointed pointed toward the flow. Thermowell shall not be installed in location where stagnation of the flow stream is possible.

3.6.6 Local temperature indicators shall shall be bimetallic every angle type thermometer thermometer with 5 inch (127 mm) dial. 3.7 Control and Instrument Instrument Valves Valves 3.7.1  The Supplier automated valve specification specification shall be reviewed and accepted by Purchaser. 3.7.2 Actuators shall be designed to meet all operating operating and shutoff conditions. 3.7.3 Valves ASME Class 125 or flanges flanges ASME Class 250 shall not be used. 3.7.4 Automated valves installed in lines lines smaller than 1 inch shall be line size. 3.7.5 Valves in line sizes 1 inch and larger shall have a minimum minimum valve body size of 1 inch, but not less than one size less than pipe size. 3.7.6  Seat leakage of automated valves shall comply comply with FCI 70-2 standards. Purchaser will identify seat leakage requirements for the automated valves. 3.7.7 Control valves shall have positioners. positioners. 3.7.8 Electro-pneumatic positioners positioners shall be control valve manufacturer’s manufacturer’s standard. 3.7.9 Ball or equivalent rotary valves valves shall be preferred for on-off service. 3.7.10  Use of automated automated gate valves shall require Purchaser acceptance. Use of butterfly butterfly valves in in throttling service shall require Purchaser acceptance. 3.7.11 Face-to-face dimensions shall comply with ANSI/ISA ANSI/ISA standards. 3.7.12 Control valve body sizes shall not be 1-1/4 inch, 2-1/2 inch, inch, 3-1/2 inch, or 5 inch. 3.7.13 Control valves shall be sized to control normal normal flow rates from 50% to 80% of maximum maximum opening of the valve.


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3.7.14 Sizing of control valves shall be based based on ISA standard valve sizing equations or on sizing programs programs of accepted valve manufacturers. 3.7.15 The composite noise level produced by control valves shall shall not exceed 85 dBA and shall comply with OSHA 1910.95. o

o

3.7.16  Packing for operating temperatures temperatures up to 450 F (232 C) can be Teflon or graphite. graphite. Packing for o o operating temperatures above 450 F (232 C)shall be graphite, and Purchaser shall specifically review seal designs. Asbestos packing shall not be used. 3.7.17 Solenoid valves shall be low power consumption consumption type with 24 volt DC coils. All electrical electrical solenoid valve coils shall be encapsulated to protect coils from ambient conditions in accordance with NEMA MG-1 Part 1.65. Class H NEMA rating is the minimum requirement. 3.7.18  Use of electric actuators, electro-hydraulic electro-hydraulic actuators, or hydraulic hydraulic actuators shall require Purchaser acceptance. 3.7.19 Direct operating pressure reducing reducing regulators shall be used only in clean fluids and simple simple applications such as for reducing instrument air supply pressure to panels or for inert gas blanketing of storage tanks. Actuators for self-acting self-acting regulating valves valves shall be capable of withstanding the maximum maximum upstream design pressure. 3.8 Programmable Logic Controllers Controllers (PLC) (PLC) 3.8.1  The PLC manufacturer and model number for the packaged equipment equipment shall require Purchaser acceptance. 3.8.2  PLC programming and configuration configuration shall be provided by the Supplier. 3.8.3  The Package Equipment Supplier shall shall provide a programming tool (handheld or PC PC software) for the PLC as specified. 3.9 Local Control Control Panels 3.9.1 The local panel shall be weatherproofed to NEMA NEMA 4 construction, and suitable for operation operation in the environmental conditions specified. 3.9.2 Supplier shall provide opening(s) and designated designated space for wire and tubing that will be installed installed after package arrives at site. Field installation installation shall not require cutting holes in panel or installing installing hardware inside the panel to secure Owner-installed Owner-installed wire and tubing. Conduit and cable entries shall be bottom or side. side. 3.9.3 All panel openings shall be plugged for shipment shipment to prevent water or dirt from entering during during shipment or storage prior to installation. 3.9.4 Panel light functions that duplicate duplicate annunciator readouts shall not be repeated from the the annunciator. 3.9.5  Prior to fabrication, Purchaser’s Purchaser’s acceptance shall be required for layout of panel face-mounted face-mounted and internal components, design of system cabinets, detail drawings, materials of construction, and nameplate wording. 3.9.6 No process fluids or process gases other than air shall be permitted permitted inside any local panel. 3.9.7 Panels shall have a minimum 3/16 inch (4.76 (4.76 mm) thick steel plate vertical face; be totally totally enclosed with access door or doors that provide sufficient clearance for full internal access, and have all stainless steel hardware.


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3.9.8 Panels shall have a self-supporting self-supporting box type main framework made of steel standard structural structural shapes coated for the environment, and have lifting provision integral to panel box frame. 3.9.9  If specified for outdoor installation, installation, panels shall have a weather hood or canopy of minimum minimum 12 gage metal at top of front panel to protect the panel face instrumentation. 3.9.10 Panels located outdoors shall have adequate internal and and external lighting rated for the electrical electrical area classification. Area lighting shall not be assumed adequate. 3.9.11 The local panel or panel section shall have a steel primary primary framework for supporting conduit, conduit, tubing, wireway, switches, air piping, and instrument accessory items (e.g., relay enclosures, transducers, pressure switches, valves, and air relays). relays). Ensure the framework design does not interfere interfere with instrument connections or with access needed for maintenance or adjustment. 3.9.12 Rear access doors shall be flush fitting, fitting, gasketed, secured with three-point latches, latches, provided with lockable door handles, and provided with common keyed locks for all the doors on one panel assembly. 3.9.13 Panel face instruments shall be suitable suitable for the specified environmental conditions, conditions, flush mounted, provided with manufacturer’s standard finish, and identified by means of instrument manufacturer’s standard nameplate holder or by plastic engraved nameplates. 3.9.14 Plastic engraved nameplates shall be mounted mounted to the panel with stainless steel screws. screws. 3.9.15 If pneumatic instruments are required required in the control panel, air supply design shall include include dual air filters and regulators, and the capability of each regulator and filter to pass the required air supply volume and pressure. Full block and bleed valves shall be provided for separate maintenance maintenance of each set of filters and regulators. Pneumatic signal tubing shall enter local local control panel through the sides via bulkhead union union fittings. 3.9.16 Pilot lights, pushbuttons, and switches shall be oil-tight, heavy heavy duty type, have open screw type terminals only, have pushbuttons supplied with protective guards or that are recessed mounted, and use lamps that are derated (e.g., rated for 240 volts AC when operated at 120 volts AC). 3.9.17 A minimum of one common lamp test pushbutton shall be provided. provided. 3.9.18 Control panels shall be located to allow operation of the mechanical equipment and panel instruments instruments without exposure of personnel to potentially unsafe conditions. 3.9.19 Location of panels shall allow for performance performance of normal maintenance of all portions portions of the packaged equipment; adequate rear door clearance; personnel access to the panel internal items; and, safe emergency personnel egress from rear of panel with door opened per code requirements. 3.9.20 A "Shield Ground" system shall be provided provided completely separate from the "AC Ground" Ground" system within the panel. Supplier shall provide a copper bus bar, at least 1 in. (25 (25 mm) wide by 1/4 in. (6 mm) thick by length as required, for each of the two ground systems. Supplier shall tie these two ground systems systems together outside of the panel. 3.10 Local Control Control Panel Panel Wiring 3.10.1  Panel that contains devices that must be purged to meet electrical electrical area classification classification requires Purchaser acceptance. Devices that must be purged shall be within within a separate enclosure that shall be purged per NFPA 496 requirements (the complete panel shall not be purged per NEC just to satisfy the requirements of a few devices). 3.10.2 AC and DC wiring shall be kept segregated (including intrinsically safe and non-intrinsically non-intrinsically safe) within control panels in accordance with NEC. NEC. If DC power distribution is provided provided within a local panel, fused terminals terminals shall be used for individual circuit protection.


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3.10.3 120 volt AC power distribution distribution within panels or equipment cabinets shall meet the following requirements: a.

Each instrument instrument shall either be individually fused (preferred) or breaker protected in accordance with OSHA for maintenance purposes.

b.

AC power shall be wired wired to a distribution distribution terminal strip.

c.

When daisy chaining is used, feed shall be to both ends of terminal terminal blocks. blocks. All parts parts of the the chain shall be able to handle the maximum current load of the feed source.

d.

AC power power wiring wiring shall be 14 AWG minimum minimum size, have THHN/THWN, THHN/THWN, 90 C/75 C, 600 V class insulation. Use larger size wire if overload protection exceeds 15 amperes.

e.

Panel shall have receptacles (inside panel) panel) for test equipment equipment and shall be supplied from a dedicated circuit breaker of an external utility power source. The receptacle shall be suitable for the country into which the the equipment is being installed.

f.

AC receptacles receptacles shall be 3-wire type: hot (black), neutral (white), (white), and and ground (green), and have ground wire wire connected to AC Safety Ground.

g.

Each panel-mounted panel-mounted metal instrument shall have an individual ground wire from the chassis to the common panel AC Safety Ground bus.

h.

Instruments with integral integral power cords normally include a ground wire in the power cord. cord.

i.

Each instrument instrument power supply, door, sub panel and chassis shall be grounded to the cabinet frame frame using 12 AWG copper wire.

°

°

3.10.4 Each wire shall be permanently tagged and identified identified at both ends. 3.10.5 For instruments that terminate terminate in the local panel, and do not continue to other control systems, systems, then the overall cable shield drain wires and individual pair shields shall be grounded to the ground bus in the local panel. 3.10.6 All wires of a cable, including including spares and shield drain wires, shall be landed in a continuous continuous order on a terminal strip, dressed out neatly, and labeled in accordance with Section 5. 3.11 Annunciators 3.11.1 Annunciators shall be self-contained self-contained solid-state, lighted, nameplate nameplate type provided with common “Acknowledge", “Test", and “Reset” pushbuttons and an audible alarm. 3.11.2 System shall also be capable of remote “Acknowledge” “Acknowledge” and “Reset” by DCS or other remote remote control system, if specified. 3.11.3 The alarm sequence shall shall be in accordance with with ISA 18.1. It shall include a first out feature of sequence number F1-M-1-14. 3.11.4 Alarms shall be detected by the opening of the initiating contact. contact. 3.11.5 Each annunciator window window shall have twin twin lamps. 3.11.6 As a minimum, annunciator systems systems shall have a contact for a remote common trouble alarm. alarm.


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3.11.7 Annunciators installed installed outdoors shall be minimum minimum NEMA 4 rated. Additional NEC requirements shall also apply as necessary to meet the electrical area classification requirements. 3.12 Equipment Protection 3.12.1  SIS, where required, shall comply comply with ISA 84.01. 3.12.2  Equipment protection system shall be independent from the equipment basic control control system. Combining the equipment control and equipment protection systems shall require Purchaser acceptance. 3.12.3   SIS determination of the type of system and the Safety Integrity Level (SIL) should should be based on ISA 84.01. SIL determination will be conducted by the Purchaser and the Owner. 3.12.4  SIS and control philosophy and hardware system system shall require Purchaser review and and acceptance. 3.12.5 SIS shall be designed to put the Packaged Equipment Equipment in a safe mode upon initiation of a shutdown signal or power failure. 3.12.6 Analog devices shall be used as inputs to the SIS. Discrete inputs should should only be used when analog analog devices are not practical. 3.12.7 Each SIS signal shall have a pre-alarm pre-alarm before actuation of any protective function. function. 3.12.8  Unless specified otherwise, otherwise, alarm, shutdown, and ON/OFF ON/OFF control signals shall be 24 volt DC. DC. 3.12.9 Redundant instruments instruments shall be powered by separate separate circuits and separate branches. branches. Separate I/O cards shall be supplied. 3.12.10 Manually operated emergency shutdown stations stations (switches) shall be one of the following following types: a. b. c.

Dual-action movement (e.g., push and turn turn manual operations required) “Pull” action type type equipped with a red “mushroom style” head Covered pushbutton

3.12.11 A common trouble and a trip alarm shall be provided provided through voltage free contacts to Purchaser’s control system (i.e., separate contact for “trouble”/pre-trip “trouble”/pre-trip alarm and a “system tripped” alarm). 3.12.12  When specified, a separate alarm contact shall be provided for interface to the DCS. DCS. 3.12.13  The alarm and trip trip settings shall be reviewed reviewed and accepted by Purchaser. Purchaser. 3.12.14 Equipment protection transmitters transmitters shall be 4-20 mA output type, powered powered from the safety system, and write-protected if smart transmitter design. 4. PIPING AND TUBING REQUIREMENTS 4.1 General 4.1.1 Instruments that require a process tap shall have have primary block valve in accordance with Table Table 1 in Section 4.2. 4.1.2 Process-connected instruments instruments that are not line-mounted shall have secondary isolating isolating valve and bleeder or valve manifold at the instrument. 4.1.3 Threaded joints in instrument instrument air service shall be made up using Teflon® dispersion dispersion sealant.


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4.1.4 Avoid pocketing of piping and tubing. 4.2 Process Connections Connections 4.2.1 Process instrument piping and connections connections shall be made with stainless steel pipe or stainless stainless steel tubing to meet service conditions. 4.2.2 Process gas or liquid sensing lines shall not be piped or tubed tubed beyond the physical limits of the Packaged Equipment. 4.2.3 Instrument process connections shall comply comply with Table 1 and ASME B31.3. B31.3. TABLE 1 INSTRUMENT CONNECTIONS TO PIPING, VESSELS, AND EQUIPMENT CONNECTION TYPE OF INSTRUMENT

THREADED (Note 2)

WELDED

FLANGED

Thermowells:

3/4 inch or 1 inch

1 inch

1-1/2 inch

Pressure:

3/4 inch or 1 inch

3/4 inch

1 inch

1/2 inch (600 # pipe class and under) 3/4 inch (900 # pipe class and over)

1/2 inch 3/4 inch

Flow, Orifice with Flange taps: (Note 1) Level: Differential

3/4 inch

1 inch

Internal Displacement

4 inch

External Displacement

2 inch

Probe

1 inch

Magnetic Level Gauge Gauge Glass

2 inch 3/4 inch

Bubbler Diaphragm Seals

1 inch

2 inch 2 inch

3/4 inch

1-1/2 in. or 3 in.

Notes: 1: 2:

Instrument connections connections on orifice with with flange taps shall be threaded, or socket welded. Instrument connections on piping piping shall be minimum minimum 3/4 inch threaded threaded or welded.

4.3 Purging of Process Connections Connections 4.3.1 If required to prevent plugging, freezing, freezing, or corrosion, process connections may be purged. 4.3.2  Purge fluid shall be compatible with with the process fluid and shall require Purchaser Purchaser acceptance. 4.3.3 Instrument connections to the process for streams containing containing suspended solids shall be vertical taps, taps, or o angled up (minimum 45 ). No horizontal taps are allowed. allowed. 4.3.4 Unless otherwise specified, purge purge systems shall be in accordance with NFPA NFPA 496 Type Z Classification. Classification.


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4.4 Pneumatic Supply 4.4.1 Air sets shall be rated for a maximum inlet inlet pressure of 150 psig (1034 kPa), have filter/regulators filter/regulators with non-paper filter element, include integral dripwell and draincock, and be adjustable. 4.4.2 All equipment of the air supply system system shall be capable of being isolated by hand valves. 4.4.3 Packaged Equipment air header shall be sized for maximum maximum air consumption (i.e., (i.e., all air users operating at the same time). Minimum air header size shall shall be 1 inch, and material shall be minimum Schedule Schedule 40 galvanized carbon steel. 4.5 Tubing 4.5.1 Tubing shall be installed in a manner that that allows for calibration of instruments instruments and removal of adjacent instruments, equipment, and tubing. 4.5.2 Tubes and tube bundles that handle process fluids shall not be installed installed in channel or cable trays that contain instrument or electrical cables. 4.5.3 Process and pneumatic tubing tubing shall be seamless per ASTM A269 A269 fully annealed 316 stainless steel. ,

4.5.4 Process and pneumatic tube fittings shall be 316 stainless stainless steel, flareless dual ferrule ferrule compression type. 4.6 Instrument Piping and Tubing Supports 4.6.1 Design and installation installation of the supports shall: shall: a.

Avoid strain on equipment, piping connections, and instruments.

b.

Allow the flexibility flexibility required to accommodate thermal expansion expansion or contraction contraction of piping or equipment.

c.

Consider vibration of the process piping piping or equipment to which an instrument is connected. connected. Welding onto the process or utility piping is never allowed.

d.

Do not use process or utility utility piping to support tubes, tube bundles, or associated support channels and trays.

4.6.2 Tubing in raceways (e.g., on angle, channel, channel, and in cable trays) shall be firmly attached attached to the support at intervals not exceeding 6 feet (1.8 m). 4.6.3 Bare metal tubing shall be attached attached to structural angle, channel, and cable trays with stainless stainless steel straps or clamps. Stainless steel tubing shall not be routed routed near or supported by galvanized materials. A suitable fireproof barrier shall be provided to prevent the stainless steel tubing from contacting any galvanizing. 4.6.4 Tube bundles shall be secured with stainless stainless steel metal straps and clamps or plastic tie-down tie-down straps. Tube bundle plastic tie-down straps shall be ultraviolet resistant, and of suitable material for the ambient conditions.


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5. ELECTRICAL REQUIREMENTS 5.1 Power Distribution Distribution 5.1.1 General a.

Purchaser will will provide an electrical power supply of the voltage, phase, and frequency specified at a connection point on the packaged equipment. All equipment and components shall be designed and rated for operation at this voltage. Supplier shall indicate the number of circuits circuits required and shall depict the location where the power source is to be connected on plan view and elevation elevation drawings. The packaged equipment shall be designed to allow Purchaser to provide only one, three-phase electric power supply.

b.

Where motor starters are are to be supplied by Supplier, a main power disconnect device shall be arranged to interrupt the external power source provided provided by Purchaser. On the load side of the main power disconnect, disconnect, Supplier shall provide a separate power circuit including all conduit and wire for each three-phase load or motor. Supplier shall provide a power disconnect disconnect device for each of these branch circuits.

c.

Where motor starters are are not supplied by Supplier, but disconnect switches switches are to be supplied by Supplier, all raceway/conduit and wire from each disconnect switch to the three-phase load or motor shall be provided by Supplier.

d.

Where neither motor starters starters nor disconnect switches switches are supplied by Supplier, all all conduit and wire from each load shall be terminated in an appropriately sized junction box, which shall comply with NEC requirements for the intended service area.

5.1.2 Safety Disconnect Disconnect Switches Switches a.

Safety and disconnect disconnect switches shall meet the requirements of NEMA KS 1, Parts Parts 2 and 4, and UL 98.

b.

Safety switches switches shall be NEMA NEMA Heavy Duty (HD), (HD), three-pole, three-pole, single-throw, single-throw, fusible fusible or nonfusible, nonfusible, quickmake, quick-break, visible-blade visible-blade type. Fusible switches shall be provided provided with Class R fuse holders.

c.

Switches rated 300 A or less shall be horsepower rated and sized for the installed installed horsepower.

5.1.3  Transformers - When transformers are specified, they shall meet the requirements of Purchaser standards shown on data sheet EE-EF26. 5.1.4 Fuses a.

One complete set of fuses shall be provided provided for all fusible equipment furnished or installed as part of Supplier’s work.

b.

Fuses shall be UL Class RK-5, RK-5, dual-element, dual-element, time-lag cartridge type, type, nonrenewable with an interrupting rating greater than or equal to 100 000 A.

5.1.5  Panelboards –When panelboards are specified, they shall meet the requirements of Purchaser standards shown on data sheet EE-EF26. 5.2 Control Systems 5.2.1 General Wiring shall allow for the the removal of any single device without affecting affecting another device. As an example, wiring shall not pass through one device to connect to another device. Wiring and conduit shall “dead end” at each device except for local indicators.


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5.2.2 Instrument Power Power and Control Circuits a.

24 VDC loops loops with hard-wired hard-wired signals signals to/from a DCS, PLC, or SIS SIS shall be powered by their respective DCS, PLC, or SIS. SIS. Supplier shall provide interposing interposing relays for 120 V AC circuits.

b.

Each instrument instrument device requiring external external power (i.e., 120 V AC) shall be on a separate circuit. circuit.

c.

Each instrument instrument shall be protected by an individual fuse or current limiting device.

d.

Each wire within a cable, cable, including spares, shall be terminated either either in a single field device or a single field junction box. Splitting cables among multiple devices/boxes devices/boxes in the field field is not permitted. permitted.

e.

Supplier shall shall provide specific fuse/breaker fuse/breaker model numbers along with the associated time versus current curve.

5.2.3 Switches a.

For application application of switches switches in equipment protection, protection, refer refer to Section 3.12.

b.

Alarm and shutdown switches switches shall be snap acting, acting, vibration vibration resistant, Double Pole, Double Throw Throw (DPDT), (DPDT), hermetically sealed and provided with noble metal switch contacts.

c.

Contact for switches and and relays shall be rated for the maximum load condition condition and be suitable for for an inductive load.

5.3 Grounding 5.3.1 The general requirements for electrical electrical grounding and bonding of electrical installation installation shall be in accordance with NEC Article 250, Grounding. 5.3.2 Two grounding pads of suitable ampacity shall shall be provided at diagonally opposite corners of the packaged unit. 5.3.3 A copper ground bus with necessary mechanical lugs shall shall be provided in each control panel and panelboard to provide a terminating point for plant ground conductor connections. 5.3.4 A separate ground bus shall shall be provided for instrument instrument circuits. This ground bus shall shall be insulated from the chassis and equipment ground. 5.3.5 The raceway system shall be adequately bonded to the structure structure and shall have a continuous grounding path consisting of a bonding conductor or conduit fittings fittings accepted as a grounding means. Raceway shall not be the sole means of grounding equipment. An insulated, green-colored grounding conductor shall be installed in each power conduit and shall be sized in accordance with the NEC. 5.3.6 The ground system for the DCS/PLC/SIS DCS/PLC/SIS shall be designed per DCS/PLC/SIS DCS/PLC/SIS manufacturers' manufacturers' recommendations. 5.4 Wiring Methods 5.4.1 Wiring shall be separated by voltage level and application application as follows and run in separate raceway/conduit: raceway/conduit: a. b. c. d. e.

AC power and control (600 V and below). DC power and control. Intrinsically safe electronic signal wiring. Non-intrinsically Non-intrinsically safe electronic signal wiring, wiring, including including thermocouple thermocouple and RTD signals. Communications.


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Class 2 and Class 3 power-limited power-limited circuits per NEC Article 725.

5.4.2 Wire Marking - Instrument and control wiring shall be identified by legible legible markings at the terminals. terminals. Each end of every wire shall be provided with a heat-shrinkable or equivalent sleeve-type wire marker in accordance with the related electrical and instrument instrument drawings. Use of adhesive and clip-on type markers shall be avoided. 5.4.3 Wire Connections Connections and terminals a.

The electrical electrical items shall shall be physically mounted and completely wired by Supplier. Supplier. Supplier shall provide provide junction box(es) with with identified terminal terminal blocks for interconnecting interconnecting field wiring wiring between package units, units, and wiring to locations outside outside the package. All such terminals shall be grouped, preferably preferably at a single location, enclosed in a manner suitable to the environment and the electrical area classification, classification, and arranged for easy accessibility. Conduit coming from above shall be routed for bottom bottom or side entry into enclosures. Installation drawings provided by Supplier shall clearly identify which wiring/cables are to be installed during field erection.

b.

Terminal blocks shall be of thermoplastic, non-corrosive, moisture-resistant moisture-resistant material with anticorrosive anticorrosive plated terminals. Support material shall be cadmium-plated cadmium-plated or stainless steel screws and channels. channels.

c.

Wiring connections shall be wired to terminal terminal blocks. Not more than two connections shall shall be allowed at each terminal point.

d.

Terminals for power distribution and for connection of alarm and shutdown systems shall be fused type.

e.

Terminals for thermocouple thermocouple connections connections shall be used only when intermediate connections cannot cannot be avoided. Thermocouple terminals shall shall be of the proper thermocouple material. material.

f.

Each terminal strip shall be tagged, and each terminal shall be tagged. tagged. A minimum of 20-percent 20-percent spare spare terminals shall be provided in each terminal enclosure.

5.4.4 Raceway Systems a.

All wiring wiring and cabling shall be installed installed in raceway/conduit raceway/conduit with termination fittings fittings accepted for the location. location. Supplier shall furnish and install necessary support material and accessories required including the complete raceway system.

b.

All conduits conduits shall be hot-dipped galvanized rigid rigid steel meeting the requirements of ANSI C80.1 or rigid aluminum whichever is more suitable for the atmosphere in which installed.

c.

Conduit size size and fill shall be in accordance with the NEC Article 344. The minimum minimum size conduit for general use shall be 3/4 in.

d.

Conduit shall be:

e.

1.

Adequately supported to prevent prevent applying applying loads loads to to enclosures enclosures or devices.

2.

Routed to avoid avoid causing causing safety hazards (including (including personnel tripping hazards).

3.

Installed to prevent vibration vibration damage to the conduit systems, systems, internal wiring, or conduit supports.

4.

Installed with with low point drains or a drip loop to prevent water from draining into an instrument instrument or enclosure.

Conduit unions unions and fittings fittings shall be provided to facilitate facilitate replacement of instruments instruments and electrical devices.


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f.

Conduit fittings and junction junction boxes shall shall be installed with cover cover openings openings in the vertical vertical plane. Access for removal of covers shall not be blocked.

g.

Conduit fittings fittings and support hardware shall be of a compatible compatible material that will not result in galvanic corrosion.

h.

Electrically conducting anti-seize anti-seize compounds shall be applied at threaded joints on conduit and fittings.

i.

PTFE compounds or other similar insulating anti-seize materials shall not be used.

j.

Conduits shall be terminated with with flexible metallic conduit at instrument instrument or end device, except when entering a junction box or control panel.

k.

Liquid-tight, flexible metallic metallic conduit conduit with accepted fittings shall be used in all areas at connections where vibration, movement or adjustments are likely to occur; this type of conduit shall not be used in Class I, Division 1 hazardous (classified) locations.

l.

Flexible metallic conduits shall be specified specified and installed to meet meet the NEC Article 348.

m. All flexible, flexible, liquid-tight liquid-tight metallic metallic conduit connections shall shall have bonding bonding conductors. n.

Conduit seals seals shall not be poured by Supplier. Supplier. Supplier shall provide the seals for pouring by others at site per NEC Article 501.

o.

Each raceway system shall be designed to prevent accumulation of moisture inside inside the raceway or enclosure. Breathers shall be provided at the high points of outdoor outdoor raceway systems and enclosures.

5.4.5 Enclosures a.

Each motor, device, or instrument enclosure enclosure shall be suitable for the expected environmental environmental conditions and shall be of a type permitted under the hazardous area classification specified for the intended equipment location.

b.

Enclosures for for control panels, control control boards, or electronic equipment shall be in accordance with NEC. The equivalent of NEMA Type 12 for indoor use and NEMA Type 4 for outdoor use is required, as a minimum.

5.4.6 Wire and Cable a.

All wire wire and cable shall comply with with the requirements established for such materials materials and construction construction by NEC, ASTM, UL, and Insulated Cable Engineers Association (ICEA) where applicable.

b.

Cable insulation shall be selected selected to withstand the area operating temperature.

c.

All wiring shall be continuous from terminal to terminal. terminal. No taps or splices splices will be permitted. permitted.

5.4.7 Power Supply Wiring - Power Power supply, alarm and shutdown, and general-purpose general-purpose electric wiring for circuits circuits not exceeding 600 V shall be stranded-copper type, minimum size No.14 AWG and insulated with a 75/90°C insulation system.


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5.4.8 Electronic Signal Wiring a.

All conductors conductors for electronic signal signal wiring wiring applications other than non-incendive intrinsically intrinsically safe circuits circuits and thermocouple wiring circuits shall be type ITC rated 300 V, installed in dedicated raceways or 600V rated cable.

b.

Wiring for 4 to 20 mA mA analog signals signals shall be shielded and twisted pairs, minimum size size No. 16 AWG for single pairs. Wiring for control or alarm circuits shall be No. 20 AWG multiconductor multiconductor cable with an overall shield. Thermocouple wiring wiring shall be shielded and twisted twisted pairs, No. No. 16 AWG minimum size. RTD wiring shall be shielded No. 16 AWG stranded copper triad.

c.

4-20 mA instrument signal signal wiring wiring and shields shall be insulated from ground at the signal source and grounded at the other end. Intrinsically safe circuits, circuits, when specified, shall comply comply with the requirements of UL 913.

d.

All interconnecting wiring between Supplier-provided instruments and the Packaged Equipment Equipment mounted mounted junction boxes and control panels shall be provided and and installed by Supplier. Supplier.

e.

In junction boxes, each individual individual pair and all pairs pairs from the overall cable require permanent tags, affixed to pairs (both sides of terminal strips).

f.

When interconnecting interconnecting wiring by others is required between the Packaged Packaged Equipment Equipment components/skids, the Supplier shall provide junction boxes on each component/skid with wires terminated and tagged for interface wiring by others.

g.

Instrument wire/cable shall be run in raceway, or conduit.

h.

Wiring from junction boxes to individual instruments shall be shielded twisted twisted pair or triad 16 AWG minimum cables in conduit.

i.

Instrument signal (4-20 (4-20 mA) mA) wiring wiring from junction box box to junction box or control control panel shall be be 20 AWG minimum, twisted pairs in multi-pair cables with overall shield and drain wire.

j.

k.

Installation drawings drawings provided by the Supplier Supplier shall clearly clearly identify which wiring/cables wiring/cables are to be installed during field erection. In junction junction boxes, each individual pair shield shield shall be terminated terminated to a dedicated terminal.

5.4.9 Control and Instrument Instrument Cable - Control cable shall be color-coded and shall be jacketed type ITC wiring, or 600-V rated polyethylene insulated wiring with clear nylon cover over the insulation and polyvinyl chloride (PVC) jacket.


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DATE: 03 APR 2003

5.4.10 Color coding shall be as follows:

AC supply: DC supply: DC signal: AC control: DC control External interlock with outside power source: Intrinsically safe system:

Line Neutral Ground Positive Negative Positive Negative

Black White Green Red Black Black White Red Orange Yellow Blue

Note: Neutral wires shall shall be white, except where there is more than one. In such cases, each shall be color coded to satisfy NEC Article 210.5. 6. ADDITIONAL REQUIREMENTS 6.1 Identification 6.1.1 Instruments, equipment, and enclosures enclosures shall be identified before shipment shipment by permanently affixing a name tag, or affixing stainless steel tag with stainless steel fasteners. 6.1.2 Plastic nameplates shall be three-layer three-layer laminate material with black lettering engraved on a white white background. Safety systems shall have white lettering lettering on a red background. 6.1.3 Instrument nameplates shall be engraved engraved with the instrument tag number and service description. description. 6.2 Inspection and Testing Testing 6.2.1  Written test procedure for conducting a Factory Factory Acceptance Test (FAT) (FAT) and Site Acceptance Test (SAT) of instrumentation, protective, logic, safety, and control systems shall be submitted by the Packaged System Supplier for acceptance acceptance by Purchaser a minimum of 6 weeks before the scheduled test. test. FAT and SAT shall be quoted when specified on the data sheets. 6.2.2 Supplier shall notify Purchaser Purchaser of the estimated time required to perform perform the instrumentation system acceptance test. 6.2.3 Unless otherwise specified, specified, Purchaser shall require a minimum minimum notice of 1 week in advance of scheduled acceptance test. 6.2.4 Material, workmanship workmanship and compliance with all specifications, specifications, shall be subject to inspection and verification by Purchaser’s representative during and after fabrication. 6.2.5 Purchaser's inspection or lack thereof thereof shall not relieve the Supplier from compliance compliance with this Specification. 6.2.6 Adequate time, space, facilities, facilities, utilities, utilities, test equipment, and assistance to allow performance performance of inspection and testing shall be provided at the Supplier’s Supplier’s facility. Supplier shall provide all necessary necessary test equipment. 6.2.7 All instrumentation and control control systems shall be carefully inspected, checked checked out, and tested by Supplier prior to Purchaser’s scheduled acceptance test and checkout.


DATE: 03 APR 2003


IS100E BASE


PAGE 23 OF 23

6.2.8  Any items found not in compliance with with this Specification during the Supplier Supplier test shall be listed for Purchaser review/acceptance along with a statement giving reasons for noncompliance. 6.2.9 Supplier’s test report, including a record of any corrections performed, shall shall be provided to the Purchaser’s representative before Purchaser’s factory acceptance test. 6.3 Preparation for Shipment Shipment 6.3.1 Instruments that may be susceptible susceptible to physical damage shall be disconnected, packaged separately, and shipped with the Packaged Equipment. 6.3.2 Instruments removed from the equipment equipment before shipment shall be tagged and boxed separately from any mechanical parts or equipment. The container(s) for the removed instruments instruments shall be clearly marked as required by the purchase order. 6.3.3 Instrument electrical conduit, fittings, and openings shall be sealed with with a threaded, lubricated plug. 6.3.4 Pneumatic, vent, and drain connections shall shall be weather protected using plastic plugs or caps. 6.3.5 Instruments shipped separately shall shall be protected by sealed packaging and shipped with desiccant inside inside the instrument or sealed package. 6.3.6 Instruments shipped installed installed on the Packaged Equipment shall be weatherproofed for shipment and for outdoor storage at the Purchaser’s facility. 6.3.7 The equipment shall be free of burrs, sharp edges, etc. 6.4 Documentation Documentation Requirements Requirements The Supplier Data Requirements List (SDR) provides the required quantities of each document and their required delivery schedule. Electronic files shall be provided per the SDR. SDR.

Electrical and Instrumentation Requirements for Packaged Equ.pdf

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