SP-EL-EE-001

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DOCUMENT NO. REV.

PTCaltex Pacific Indonesia SP-EL-EE-001 1

DATE : SEPT 21, 2001 SHEET : 1 OF 30

PREPARED BY Hadi Prijono HPR

CHECKED BY Hadi Prijono HPR

SPECIFICATION

APPROVED BY Shawn SPD

GENERAL SPECIFICATION : ELECTRICAL

PT. CALTEX PACIFIC INDONESIA

REV DATE PAGE S DESCRIPTION PREP D CHK D APP D

0 9/21/01 ALL ISSUED FOR IMPLEMENTATION HPR HPR SPD

1 10/7/02 ALL CPI SPEC REVIEW TEAM (HPR, TJR, ARIY) Team Team Team

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TABLE OF CONTENT

1. GENERAL.......... ........................................................ ........................................................ 3

1.1. Scope............................................. ........................................................ ................... 3

1.2. References.................................................................. ............................................... 3

1.3. Terminology.................................................................................................... .......... 5

1.4. Submittals.................... ........................................................ ..................................... 5

1.5. Site Conditions...................... ........................................................ ............................ 8

2. PRODUCT.......... ........................................................ ........................................................ 9

2.1. General.................................................... ....................................................... .......... 9

2.2. Design Summary.......... ........................................................ ..................................... 9

2.3. Design Requirements............. ........................................................ .......................... 10

2.4. Voltage Regulation ..................................................... ............................................. 12

2.5. Transformer Selection................................................. ............................................. 12

2.6. Operating Philosophy ................................................. ............................................. 13

2.7. Protective Relaying.................................................................................................. 14

2.8. UPS.................................................................. ...................................................... 14

2.9. Electrical Equipment Spacing Requirement............................................................... 15

2.10. Switchgear............................ ........................................................ .......................... 16

2.11. Power Transformers............................................................. ................................... 16

2.12. Motor Controllers....................................................... ............................................. 17

2.13. Grounding................................................ ....................................................... ........ 18

2.14. Lighting................................ ........................................................ .......................... 20

2.15. Conduit and Conduit Fittings ................................................ ................................... 21

2.16. Cable Trays....................................................... ...................................................... 23

2.17. Power and Control Wiring................................. ...................................................... 24

2.18. Control Systems Instrumentation .................................................... .......................... 24

2.19. Receptacles.................................... ........................................................ ................. 26

2.20. Station Building................................................. ...................................................... 26

2.21. Power Pole Distribution System..................................................... .......................... 26

2.22. Recloser......................................... ........................................................ ................. 27

2.23. Load Break Switch...................................................... ............................................. 27

2.24. Capacitor Bank ................................................. ...................................................... 28

2.25. Fuse Cut Out..................................................... ...................................................... 28

2.26. Arrestor.... ........................................................ ...................................................... 28

2.27. Underground Cable Installation..................................................... .......................... 28

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PT. CALTEX PACIFIC INDONESIA General Specification Electrical

SP-EL-EE-001 Rev. 1

July, 2002 Page 2 of 30

3. EXECUTION................ ....................................................... ............................................. 29

3.1. Field Quality Control.................................................. ............................................. 29

3.2. Safety..................................................................................................... ................. 29

OPTIONAL ATTACHEMENTS FOR THIS SPECIFICATION:

ADDENDUM 1: Project Specific Clarifications & Requirements

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1. GENERAL

1.1. Scope

1.1.1. Scope of Specification. This specification covers the minimum requirement forthe electrical design, selection and protection of electrical equipment, materia ls,installation, and field checkout of a complete electrical system.

1.1.2. Design Basis for the electrical system design is outlined in Engineering DesignBasis document.

1.1.3. Overall Scope of Work is as outlined in the EPC Contract technical requirements.

1.2. References

1.2.1. Related and Specification

The following listed project specifications shall serve as an attachment to thisdocument as a design basis:

Procedures #: Description

?? PP-EL-EE-001 Electrical Above Ground Installation?? PP-EL-EE-002 Electrical Under Ground Installation?? PP-EL-EE-003 Power Pole and Powerline Fabrication and Installation?? PP-EL-EE-004 Electrical Pre-commissioning Procedures?? PP-EL-EE-006 Electrical Energizing Procedures

Specification #: Description?? SP-EL-EE-001 General Specification: Electrical?? SP-EL-EE-002 Distribution Class Pad Mounted Power Transformer

Below 2500KVA?? SP-EL-EE-003 Substation Class Pad Mounted Power Transformer

Above 2500KVA?? SP-EL-EE-004 Pole Mounted Unit Transformer?? SP-EL-EE-005 Induction Motor , Below 200HP?? SP-EL-EE-006 Induction Motor , Above 200HP?? SP-EL-EE-007 Low Voltage Switchgear, MCC and Bus Duct.?? SP-EL-EE-008 Medium Voltage Switchgear, MCC and Bus Duct?? SP-EL-EE-009 Un-interruptible Power Supply (UPS)?? SP-EL-EE-010 Automatic Recloser?? SP-EL-EE-011 Capacitor Bank?? SP-EL-EE-012 Distribution Panel Board?? SP-EL-EE-013 Safety Switch, Circuit Breaker and Local Control?? SP-EL-EE-014 Powerline Hardware?? SP-EL-EE-015 Low Voltage Power Cable (0.6/1 kV)?? SP-EL-EE-016 Medium Voltage Power Cable (13.8 kV)?? SP-EL-EE-017 Wire Power Conductor?? SP-EL-EE-018 Cable Tray?? SP-EL-EE-019 Lighting and Fixtures?? SP-EL-EE-020 480 volt Variable Frequency Drive?? SP-EL-EE-021 Medium Voltage Variable Frequency Drive

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?? SP-EL-EE-022 Switchboard

The following listed existing COMPANY drawings shall serve as attachments tothis document, or other construction standards as specified by COMPANY:

Drawing #: Description?? CP-GN-EE- Electrical Legend and Symbol?? CP-GN-EE- Standard Pole Design Tangent Power Pole Type A

13.8 kV distribution System?? CP-GN-EE- Standard Pole Design 6o-30o angle Power Pole Type

B 13.8 kV distribution System

?? CP-GN-EE- Standard Pole Design 6 o -30 o angle Power PoleType C 13.8 kV distribution System

?? CP-GN-EE- Standard Pole Design 6 o -30 o angle Power PoleType D 13.8 kV distribution System

?? CP-GN-EE- Standard Pole Design 6 o -30 o angle Power PoleType E 13.8 kV distribution System

?? CP-GN-EE- Installation Detail Crossing Pole?? CP-GN-EE- Installation Detail of Pole Mounted Transformer?? CP-GN-EE- Installation Detail of Recloser?? CP-GN-EE- Typical Installation of Capacitor Bank?? CP-GN-EE- Installation Detail of Load Break Switch?? CP-GN-EE- Typical Installation Detail of Substation Motor

Control Center and Metal Enclosed Busduct?? CP-GN-EE- Typical Installation Detail of Electrical Work?? CP-GN-EE- Typical Installation Detail of Lighting and Receptacle

Work?? CP-GN-EE- Typical Installation Detail of Lightning Protection

and Grounding

Note:?? () to be filled by COMPANY.

1.2.2. Codes and Standard

Publications listed below form part of this specif ication. Each publication shallbe the latest revision and addendum in effect on the date this specification isissued for construction unless noted otherwise. Except as modified by therequirements specified herein or the details of the drawings, Work inc luded inthis specification shall conform to the applicable provisions of these publications.

1.2.2.1 ANSI (American National Standards Institute)

1.2.2.2 API (American Petroleum Institute)

1.2.2.3 ICEA (Insulated Cable Engineers Association)

1.2.2.4 IEEE (Institute of Electrical and Electronics Engineers)

1.2.2.5 IES (Illuminating Engineering Society)

1.2.2.6 NEMA (National Electrical Manufacturers Association)

1.2.2.7 NEC (National Electrical Code) (NFPA 70 )

1.2.2.8 NETA (National Electrical Testing Association)

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1.2.2.9 NFPA (National Fire Protection Association)

1.2.2.10 COMPANY Safety-in-Design Manual

1.2.3. Any conflict between drawings, specifications and other documents shall bebrought to COMPANYs attention. In general, the most stringent requirementwill apply.

1.3. Terminology

1.3.1. COMPANY

Refers to PT. CALTEX PACIFIC INDONESIA, as the ultimate user and owner,the authorized representative of COMPANY or COMPANY third partyinspection.

1.3.2. CONTRACTOR

Refers to company selected by COMPANY, which may be responsible for thedetailed engineering design, material and equipment procurement, and

construction as specified by Contract, Scope of Work, or Work order.

1.3.3. Vendor

Refers to the company selected by COMPANY or CONTRACTOR, which isresponsible for the purchase agreement or purchase order of the goods/servicesspecified in this specification

Notes:?? For EPC (Engineering, Procurement and Construction) project purposes:

The terminology shall have the meanings as above.?? For Direct Procurement by COMPANY purposes:

Vendor shall also be responsible as CONTRACTOR.

1.4. Conflicting Requirements

1.4.1. In case of conflict between this Specification and its associated Specificationsand the above Codes and Standards, the Vendor shall bring the matter to theCOMPANYs attention for resolution and approval in writing. However, themost stringent requirement shall apply.

1.4.2. Should conflicts exist between this specification and other documents, thefollowing order of precedence shall govern:?? Scope of Work?? Data Sheets.?? This Specification?? Other COMPANY Specifications?? Other Referenced Publications?? Approved for Construction Drawings

?? Vendors Code

1.5. Submittals

1.5.1. Manufacturer's drawings for major items of electrical equipment shall include,but not be limited to the following:

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?? Dimensional outline drawings.?? Floor plans, including anchor bolt locations.?? Equipment weight.?? Three-line, internal connection and schematic and/or elementary wiring

diagrams, and interconnection diagram.?? Bills of material describing components of multi component equipment.

1.5.2. Unless specifically directed otherwise, COMPANY standard format andsymbols, which generally follow the ANSI, shall be used.

1.5.3. Construction drawings shall include, but not be limited to, the following:

1.5.3.1 One-line diagrams (diagrammatic) showing power distribution fromthe incoming source to the ultimate motor loads, lighting panels, andother electrical users.

1.5.3.2 Secondary selective substation including Motor Control Centre.

1.5.3.3 Overall electrical distribution network.

1.5.3.4 Electrical distribution network (plot plant oriented) showing outline ofpoles, locations of transformers, reclosers, load break switches,capacitors, etc.

1.5.3.5 Typical power pole drawings.

1.5.3.6 Installation details of power pole and pole mounted equipment such astransformer, recloser etc.

1.5.3.7 Tie in detail for connection to the existing power line.

1.5.3.8 Take off pole detail for tapping from 13.8 kV line.

1.5.3.9 Hazardous Area classification at off plot and on plot area.

1.5.3.10 Plot plans showing underground cable trenches, overhead conduit andcable tray, and the location and identification of major electricalequipment in on-plot area and well site.

1.5.3.11 Installation details for major equipment, junction boxes, pull boxes,panel boards, field instruments, and similar items.

1.5.3.12 Physical location and identification of each underground cabletrenches (duct bank sections) and cable tray layout

1.5.3.13 Conduit and cable schedule showing conduit number, wire number,conductor size, length, type of insulation and, if shielded, type of

jacket; and number of wires in the conduit, and location of bothconductors ends.

1.5.3.14 Elementary wiring diagrams for motor control circuits and instrumentcircuits. One typical diagram may be used for identical controlschemes with approval from COMPANY. The normally open andnormally closed position of switch and relay contacts shall be clearlydesignated with respect to the actuating conditions, for alarm andshutdown signal normally close contact is preferred.

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1.5.3.15 Connection wiring diagrams for control, alarm, and instrumentcircuits.

1.5.3.16 Loop diagram of all instruments connected to junction boxes, motorcontrol centre and PLC.

1.5.3.17 Marshalling / Interposing relay panel.

1.5.3.18 Schedules for panel boards and lighting fixtures.

1.5.3.19 Grounding and lightning protection drawings.

1.5.3.20 Lighting drawings, including Illumination Drawings.

1.5.3.21 Control Panel Scematics

1.5.4. Project Specifications.

1.5.4.1 CONTRACTOR shall prepare new project specification usingCOMPANY project specification listed in section 1.2.1 as a basis.(CONTRACTOR shall review COMPANY specifications and revise

them to meet the project requirements. CONTRACTOR shall notreproduce these specifications but only attach them with addendum/revision / modification made applicable as).

CONTRACTOR shall be furnished with a preliminary set ofconceptual COMPANY Electrical project specifications and drawings,which shall serve as an attachment to this document and shall be usedas basis for preparing required detailed engineering documents withCOMPANY approval. These documents shall not be reproduced andused for detailed engineering. New drawings and specifications will

be engineered specifically for this project.

1.5.4.2 CONTRACTOR shall develop new specifications such as:

?? Construction specifications?? Tie in procedures?? Other required specifications

1.5.5. Studies and Calculations.

It is responsibility of CONTRACTOR to carry out all design calculations toconfirm all design details. This shall include but not limited to sizing of theconductor, cable, transformer, bus, fuses, circuit breakers, capacitor, studies on

power system and need on voltage regulator, current limiting fuse and breaker.

1.5.5.1 Load list

CONTRACTOR shall prepare and keep up to date the load list based

on P&ID, process equipment sizing, specifying the following:Equipment number?? Service?? Operating diversity and demand factor?? Motor volt, name plate horse power, brake horse power,

synchronous RPM, percent efficiency and power factor at full load?? Estimated operating load as shown on FLA, kW, kVAR, kVA?? Summary which show the sub total load of main feeder, sub

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feeder, branches transformer, buses both on normal and abnormalconditions.

?? For initial load forecast see point 2.5.1 below

1.5.5.2 Power system studies

It is recommended, when applicable, to use ETAP software inconducting the studies.Power system studies shall include but not limited to:?? Load flow and voltage drop?? Power factor correction

?? Short circuit

?? Motor starting?? Protective relay?? Grounding System

1.5.5.3 Equipment sizing calculation

CONTRACTOR shall ensure that selected equipment is capable to

withstand the worst operating condition.

1.5.5.4 Lighting calculations

CONTRACTOR shall conduct lighting calculation for outdoor andindoor illumination at On-plot area only. Wellhead area and Off-plotarea do not require lighting unless otherwise noted. The lighting layout drawing shall reflect the result of the lighting calculation.

1.6. Site Conditions

1.6.1. Grade Elevation: less than 400 ft above mean sea level.

1.6.2. Ambient Temperature: 70 F to 100 F (use 100 F for design).

1.6.3. Annual Rainfall: 120 inches/year.

Rainfall intensity: 3 inches/hour

1.6.4. Wind velocity : 30 mph. Max.

1.6.5. Lightning strikes : several time each week.

1.6.6. Area Classification

1.6.6.1 Areas, process units, or both shall be classifie d for type and degree ofhazard as defined by the NEC, supplemented by the recommendationsof NFPA 497 A and B; API RP-500; and NFPA Standard 70 andothers, where applicable.

1.6.6.2 Area classification drawings shall be produced for areas and processunits as required, and shall indicate the limits, both horizontally andvertically, of classified areas. In situations where a predominate

portion of the plant is classified, Class-1 Division-2 Construction, willbe employed throughout the plant, if feasible.

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1.6.6.3 Electrical equipment and materials for use in classified areas shall becertified by an approved testing authority for the specificclassifications, as required by NEC.

2. PRODUCT

2.1. General

2.1.1. This section describes the design engineering, equipment, material andinstallation for the various sub-systems that are parts of a total plant electricalscope.

2.1.2. The power distribution system shall be designed to provide reliable electricalpower during all modes of plant operation, including all shutdown conditions.System frequency shall be 60 hertz.

2.2. Design Summary

Principal Characteristics

2.2.1. Area electrical facility loads shall be supplied from the 115 kV / 13.8 kVSubstations using 13.8 kV distribution lines then step down to Lower VoltageSystem (480 V - 4160 V) using distribution transformer at facility Station.

2.2.2. Voltage Requirements

Utility voltage shall varied with ? 10 percent nominal voltage. Utility voltageshall be able to start the largest connected motor with a minimum of 75 percentof nominal voltage at the motor terminals while simultaneously supplying theremaining of the connected loads.

2.2.3. Reliability

The 13.8 kV network (feeders) shall be designed such that each feeder shall haveat least 2-alternatives of incoming power (open loop configuration). While the480V local distribution system to essential loads (Well Test/Plant/GS Facilities)shall be supplied by double local secondary selective Switchgear.

2.2.4. Flexibility

Feeder Network shall be independent and each feeder must able to be isolatedfrom main system without affecting the other feeders. The network shall beexpandable for extension to supply new area and be connectable to the adjacentfeeder network.

2.2.5. System Calculation

Calculations for system short circuit studies, system voltage dips during motorstart, and steady state voltage regulations, shall be performed using software

programs approved by COMPANY. The Switchgear buses and motor controlcenters fault duties and large motor starting conditions shall be carefullyconsidered in the selection of transformer sizes and transformer impedance.

2.2.6. Voltages

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2.2.6.1 Nominal voltage for Plan, wells motor, other facilities and auxiliaryapparatus.

Main feeder Voltages 13.8 kVSub-feeder Voltage (local / within a plant) 4.16 kV

Submergible pump motor (in well) Voltage(depended on size/HP of the motor)

480- up to 2500 V

Injection pump motor (at surface) Voltage 480 V, 4160 V

Other surface facilities & aux. ApparatusVoltage

480 V, 240 V, 120 V

2.2.6.2 BIL Levels

Service Voltage Surge Arrester rating BIL rating

13.8 kV 15 kV 95 kV4.16 kV 6 kV 60 kV

480 V and below 750 V 30 kV

Notes: 1. BIL rating of a Neutral terminal / bushing (if applicable) must beequal to phase BIL rating that related to the neutral.

2. Arrestor ratings are based on:- Metal Oxide type of Arrestor- Resistance grounded system for 13.8kV.- Solidly grounded system for 4.16 kV and lower.

2.3. Design Requirements

2.3.1. System Phasing

2.3.1.1 To maintain a consistent phasing throughout the entire electricalsystem, connections between transformers, Switchgear, and cablesshall be made as follows for a 3-phase, 3 wire system:

Transformer Terminal Switchgear Breaker -Terminal or Bus Bar

Cable - Phase

H1.H2H3

ABC

A or 1B or 2C or 3

X1X2X3

XO*

ABC

N

A or 1B or 2C or 3

N or 0

(*) Transformers neutral to be connected to grounding system

2.3.1.2 Switchgear and motor control assembly phasing shall be A-B-C whenfacing the front of the assembly, as follows?? Bus bars: left to right, front to rear, and top to bottom.?? Breaker and starter terminals: left to right.

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2.3.2. Well Site Area Distribution.

The primary power to well site shall be at 13.8 kV overhead branches. 13.8 kV /480-2500V pad-mounted step-down transformer if required complete with aux.transformer and switchboard will be provided for supplying the facilities. Supply

to electric submersible pump will be 480-2500 V, as per required systemvoltage, using direct buried cable from a switchboard to local junction box. Sizeof transformer and distribution panel board shall be similar for all or maximumtwo different sizes / types to make easy for repairmen and replacement.

2.3.3. Power Distribution 13.8 kV

For over head conductor size it is limited to two sizes 366.4 MCM Oriole ACSRand 4/0 AWG Penguin ACSR shall be used.

CONTRACTOR shall verify and advise COMPANY if this conductor issufficient or not. If not sufficient it is responsibility of CONTRACTOR to rundouble conductor.

Routing of distribution line shall be along the road to provide maintenanceaccess.

Clearance between line conductor and wellhead of new production or injectionwell shall be 132 feet (40 meters) minimum.

Minimum height of line conductor shall 35 ft from road level to provideclearance for rig and other heavy equipment.

2.3.4. Plant Area

From 13.8 kV primary distribution to Plan Area shall be 13.8 kV direct buriedcables dual lines tapped from different 13.8 kV overhead branches or as specified

by COMPANY. The 480-volt Switchgear line up shall be double ended withautomatic transfer features. The Switchgear line up shall provide power for thelarge motors (if any) and line up of 480-volt motor control centre.

The 480 volt substations shall consist of two sets 13.8/0.48 kV pad mountedpower transformers, 480 volt Switchgear and motor control centre located at nonclassified area, connection from transformer secondary to Switchgear shall usemetal enclosed bus duct. Distribution within the plant in general shall be throughunderground cable trenches or cable tray for aboveground system.

2.3.5. Neutral Grounding

Neutrals of wye connected systems are grounded as follows:

Winding Voltage Grounding Type

13.8 kV Low resistant grounding480 V , 4160 V Solid grounding

2.3.6. Motor.

In general, motors shall conform to the following provisions:

Horse Power Voltage Phase Enclosure (*2)

Below 115 V or 230V 1 phase Explosion proof or TENV

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thru 300 460 V 3 phase TEFC

301(*1) thru 1000 4160 V 3 phase WP-I or WP-II or TEFC

Above 1000 4160 V 3 phase WP-II or TEFC

Notes : *1. In special case, 300 HP motor may use at 4160 V*2. a. The type of motor enclosure selected, shall conform the Area

Classification in which the motor is going to be installed.b. All motors shall be equipped with space heaters. The leads for

the space heater shall be brought into a junction box separatefrom the power junction box.

2.4. Voltage Regulation

2.4.1. The allowable voltage drops in Sections 2.4.2 and 2.4.3 of this specification shallbe based on the following:

2.4.1.1 Transformer regulation shall not be considered for normal operating

conditions since transformer tap changers will be set to obtain aspecified bus voltage level under normal load conditions.

2.4.1.2 Transformer impedance shall be considered for voltage dropcalculations during starting of large motors and grouped motor re-acceleration.

2.4.1.3 For motor starting voltage drop calculations, the minimum shortcircuit level at the specific bus shall be used.

2.4.2. During Starting of Motors

In all cases involving motor starting, the voltage at the motor terminals must besufficient to ensure proper breakaway and acceleration of the motor. In general,

the allowable voltage drop through the system to the source buses during motorstarting shall not exceed the following values:?? On the bus supplying the primary distribution system (13.8 kV) : 5 percent?? On the bus supplying the secondary distribution system (4.16 kV) : 5 percent?? On the bus directly supplying a motor (4.16 kV, and 480 volt) :15 percent

2.4.3. During Normal Operation with the Worst Supply Feeder Condition:

The allowable voltage drop in the cables, based on full load, shall not exceed thefollowing values:Secondary distribution feeder cables (4.16 kV and 480 volt) 2 percents

Lighting transformer feeders 2 percentsLighting branch circuits between the panel board and

the most remote fixture or outlet

3 percents

Motor branch circuit 3 percents

2.5. Transformer Selection

The following guidelines shall be used as a basis for selecting transformer capacities basedon the initial design load.

2.5.1. Initial Design Load

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2.5.1.1 The initial design load shall consist of the nameplate rating of allnormally operating motors; the nameplate rating of motors designatedas future on drawings and the mechanical equipment list; and thelighting, air conditioning, heating, and miscellaneous loads.

2.5.1.2 In all cases spare motor will be included in the initial design load.2.5.1.3 To convert motor horsepower to kVA, use this formula:

For 200 hp and below 1.00 x HP

For 250 hp and below 0.90 X HPFor synchronous motors (1.0 PF) 0.78 x HP

2.5.1.4 When synchronous motors with a leading power factor are connectedto a bus, the resulting leading kVAR shall be considered whencalculating the transformer kVA capacity.

2.5.1.5 When the actual data of the motor PF, efficiency, demand factor etcare available, the calculations shall be updated accordingly.

2.5.2. Transformer Capacities

2.5.2.1 Transformers supplying double-ended Switchgear assembly shall besized so each transformer will be capable of supplying the sum of theinitial design loads on the two buses.

2.5.2.2 The initial design load connected to a transformer shall not exceed thefollowing values:

?? The 131 F (55 C) OA rating on 131 F / 149 F (55 C / 65 C)dual rated transformers (no forced cooling).

?? The 131F (55C) forced air (FA) rating on 131F / 149F (55 C/ 65C) transformers.

?? Ninety percent of the OA or forced cooled rating temperature ontransformers with a single temperature rise.

2.5.3. Short Circuit Levels

2.5.3.1 Maximum available short circuit duties shall not exceed theinterrupting and short circuit (momentary) rating of standard metalclad Switchgear.

2.5.3.2 Maximum short circuit level shall include contribution from allnormally running motors from bus A and bus B (Tiebreaker close).

2.6. Operating Philosophy

The guiding philosophy is to prevent a single failure from causing a loss of production.This was achieved by using redundant feeder, transformer and busses. For the primarynetworks 13.8kV open loop configuration and for essential 480 V loads, secondaryselective configuration are selected.

2.6.1. 13.8 kV Network

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2.6.1.1 All load break switches supplying sub feeders shall be in normallyclose position.

2.6.1.2 All recloser that supplying branches shall be in normally closeposition.

2.6.1.3 All load break switch connecting branch circuit to alternate sub feedershall be normally open.

2.6.1.4 When main supply fail, transfer to alternate supply shall be donemanually after isolating the faulty section.

2.6.1.5 Recloser will be equipped with remote radio and control system forremote tripping via PG & T s SCADA.

2.6.2. 480 V Secondary Selective

Double-ended load center bus ties shall be normally open. Each transformer shallbe sized to carry full load of both buses.

Should one of the feeder or transformer fail the effected 480 V bus willautomatically be transferred and connected to healthy bus by automaticallyclosing the bus tie breaker after the main breaker trip without interruption.Interlock is provided to prevent the connection of faulty bus to the healthy buswhen the fault is on bus or load side.

2.7. Protective Relaying

2.7.1. Primary 13.8 kV Circuit?? Recloser : for 13.8kV branch lines and substation class pad mounted

transformers (2500 kVA and above)?? Fused cut out : for pole mounted transformers and distribution class pad

mounted transformers (below 2500 kVA)

?? Lightning arrester on transformer primary side and all pole -mountedequipment.

2.7.2. Transformers

Transformers as minimum shall include but not limited to the followingprotections:?? Transformer secondary over current?? Sudden pressure (for above 1000 kVA )?? Winding and oil temperature?? Neutral over current / ground fault.

2.7.3. Motors

2.7.3.1 Low voltage combination motor starters with thermal overload relaysare normally used for low voltage motors.

2.7.3.2 Vibration switch / detectors and/or bearing or winding temperaturedetectors when indicated.

2.8. UPS

2.8.1. Plant Control System UPS

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2.8.1.1 UPS power supply for the plant control system is located in the PLCbuilding / control room.

2.8.1.2 It is preferred that UPS system has two incoming main supplies fromseparate source.

2.8.1.3 In case wet type battery is used, batteries shall be installed in adedicated room.

2.8.2. UPS Output Criteria

2.8.2.1 Output voltage is regulated automatically within plus or minus twopercent of rated voltage.

2.8.2.2 Output voltage is stable within plus or minus one percent of rated 60hertz when the inverter is not synchronised to an external AC line.

2.8.2.3 Automatic transfer between UPS module and the regulated alternativepower source is achieved within cycle (or less) power interruptionon 60-hertz basis.

2.8.2.4 Redundant UPS modules are sized to carry 100 percent of the total ofall loads carried on both distribution buses.

2.8.3. Batteries and Chargers

2.8.3.1 Batteries are sized to carry 100 percent of the inverter rating for 30minutes, while operating at a 95

oF (35C) ambient air temperature.

2.8.3.2 Battery chargers for UPS system batteries are sized to recharge a fullydischarged battery to a full charge in not more than 8 hours, whilesupplying 100 percent rated UPS output load.

2.8.4. Local and Remote Alarm

The UPS System shall be equipped with a local alarm panel and a dry contact forthe following critical alarms:?? Load on Alternate Source?? System of Battery?? DC Bus Ground?? System Over temperature?? Low or High DC Battery Voltage?? Loss of Inverter

2.9. Electrical Equipment Spacing Requirement

Space Allocation

2.9.1. Minimum working clearances around electrical equipment shall be in accordancewith NEC requirements and COMPANY Safety in Design manual.

2.9.2. Extra space is reserved for operation and maintenance of all electricalcomponents in accordance with the manufacturer's requirements.

2.9.3. Main 480 V or 4.16 kV Switchgear rooms are provided with a minimum of 6 feetof spare room length for future addition of Switchgear cubicles, in addition torequired working clearance spaces.

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2.11.1. Power transformers shall be outdoor types, liquid immersed, 3-phase, deltaconnected primary and wye-connected secondary windings, and with four 2

percent full capacities no load taps changer, two above and below rated primaryvoltage. In general, transformers shall have standard impedance. In some cases,higher impedance may be specified to limit short circuit currents to within thestandard ratings of manufactured equipment.

2.11.2. The neutral point of secondary windings rated 4160 volt and below shall besolidly grounded.

2.11.3. In general, cable connected power transformers with primary ratings of 34.5 kVand below shall have an air filled terminal chamber on the primary and a flangedthroat for bus duct connection on the secondary.

2.11.4. Transformer taps shall be set so that, under no-load conditions, voltage on thesecondary shall not exceed 105 percent of the rated voltage.

2.11.5. For transformers initial design load guidelines, refer to Section 2.5.1 of thisspecification.

2.11.6. A detailed Specification entitled Specification for Specific Power transformershall be provided as required for each contract.

2.12. Motor Controllers

2.12.1. Controllers for Medium Voltage Motors .

2.12.1.1 Controllers for medium voltage motors (2300 volt through 4000 volt)shall be NEMA Class E2, current limiting fuse, and magneticcontactor type. For motors beyond the ampere rating of this type ofcontroller, Switchgear type circuit breakers shall be used.

2.12.1.2 Controllers shall be grouped in metal enclosed, free-standing, dead -

front assemblies. Assemblies for indoor installation shall have NEMA1 enclosures. Assemblies for outdoor installation shall have NEMA4X or 3R as specified by Company.

2.12.1.3 Each controller shall be provided with three current transformers,three overload relays, control power transformer, necessary controlaccessories, and additional protective devices as required for thespecific motor.

2.12.1.4 A detailed equipment specification entitled "Specification for MediumVoltage Switchgear & Motor / Feeder Controller" including ofcontrollers for motors and feeders will be provided as required foreach Contract.

2.12.2. Controllers for Low Voltage Motors

2.12.2.1 Single Phase Motor Controllers

In general, controllers for 120 volts single-phase small motors(fractional HP motor) shall be of manual starters except in special casewhere magnetic contactor type starters is required. Short circuit

breaker shall be located in a lighting panel board.

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2.12.2.2 Three Phase Motor Controllers

?? Controllers for 3-phase low voltage motors shall be thecombination type consisting of a moulded case air circuit breakerand a magnetic contactor, or a fuse switch with current limiting

fuses and a magnetic contactor. Minimum contactor size shall beNEMA Size 1.

?? As a minimum, each starter shall have three overload relays and aControl transformer with a fused 120/240 volt secondary.

?? Motor controllers for indoor unclassified area installations shall begrouped, metal-enclosed, free-standing, dead-front, back to backinstallation in MCC.

Control Centre with NEMA Type 1B wiring. All starters NEMAsize 1 through size 4 shall be plug-in types.

?? Motor Control Centre type 1 assemblies for outdoor, unclassified

installation shall be essentially as indoor type specification aboveexcept with NEMA 4X or 3R as specified by COMPANY,rain-tight, dust-tight, and rodent-proof enclosures.

?? Motor controllers for installation in outdoor areas may be groupedon switch-rack. Each controller shall be enclosed in an enclosurelisted or approved for the area classification and, when applicable,sealed in accordance with the NEC.

?? Circuit breakers in combination starters shall have adjustablemagnetic instantaneous-only type trip units.

?? Circuit breakers for feeders shall have thermal-magnetic type tripunits.

?? Detailed equipment specifications for low voltage motorcontrollers entitled "Specification for Low Voltage Switchgearand Motor Control Centre (480 V)" will be provided as requiredfor each Contract.

2.13. Grounding

2.13.1. Main Substation

2.13.1.1 A ground grid designed in accordance with IEEE 80 shall be installedat the main station. Grid conductor shall be 4/0 minimum, bare andstranded copper. The grid shall include a perimeter loop located threefeet outside and bonded to station fence.

2.13.1.2 Appropriately sized ground bus and equipment connections shall beinstalled based on anticipated system ground fault current. Majorequipment shall be connected to the ground bus at two points.

2.13.2. Plant Grounding System

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2.13.2.1 A loop grounding system with radial taps to equipment shall beinstalled. The main ground loop shall be run continuous down bothsides of each process area and off-site pipe rack.

2.13.2.2 For buildings and groups of equipment located greater distances from

the pipe rack, supplemental number 2/0 AWG loop connected to themain loop shall be used. Isolated equipment, remote from processarea, shall be grounded by a local number 2/0 AWG ground loopattached to ground rods.

2.13.2.3 Primary ground electrodes shall be concrete enclosed reinforcing rod,(that is, foundation re-bar). One anchor bolt at each column shall bewelded to re-bar. A 2/0 AWG copper jumper shall be installed

between ground loop and steel column at selected points. Drivenground rods may be used as supplemental electrodes.

2.13.2.4 The plant grounding system resistance to earth shall not exceed 5ohms. For isolated conditions, ground electrode resistance to earth

shall not exceed 25 ohms.2.13.2.5 Plant ground loops shall be extended and bonded directly to main

station grid at two points. Plant primary feeder cables shall bepurchased with ground wires that shall also be tied to the ground busat the main station and tied by equipment enclosures to the plantground loops at their termination points.

2.13.2.6 The main ground loop shall be number 2/0 AWG, bare, stranded, softdrawn copper. Connections to unit substation ground bus, substationtransformers, Switchgear, and Motor Control Centre shall be 2/0AWG. Each tap shall be individually connected to the main groundloop or substation ground bus.

2.13.2.7 Below grade grounding conductors shall be buried a minimum of 20 and shall be installed with slack between connections.Underground connections shall be exothermic weld type. Exposedgrounding connections shall be the mechanical type.

2.13.2.8 Electrical equipment operating above 600 V and enclosures of allpower transformers, Switchgear, motor control equipment, andlighting panels shall be wire connected to the main grounding loop.Other electrical equipment operating below 600 V shall be groundedto the MCC ground bus by a grounding conductor at power supply.

2.13.2.9 In general, metal floodlight and streetlight poles, building frames, piperacks, and large skids with several electrical users shall be wire

connected to the main grounding loop. Plant fence and railroad sidingsshall be bonded to main grounding loop.

2.13.2.10 Single or parallel tray runs along a pipe rack shall be grounded atintervals no greater than 200 feet. Trays leaving a pipe rack, trayexpansion fittings, and hinge splice plates shall have bonding jumpersinstalled to ensure raceway continuity.

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2.13.2.11 An insulated ground bus shall be installed in the control room forinstrument grounds. This bus shall be isolated from power groundingconductors and building structures. It shall be connected to a cluster ofground rods near the building and from there be tied at one point tothe main ground loop.

2.13.3. Computer / Instrumentation

2.13.3.1 Appropriately sized ground bus and equipment connections shall beinstalled for Computer / Instrumentation grounding.

2.13.3.2 All ground busses shall be connected to the plant ground loop.

2.13.3.3 If instrumentation grounding is separated from electrical facilitiesgrounding, an IJP (Insulated Joint Protector) shall be installed betweentwo grounding systems. This IJP will maintain these two systemsseparated during normal condition and will maintain two systems inequi-potential during difference voltage occur (e.g. lighting strike).

2.13.4. Lightning Protection

2.13.4.1 Tall or isolated structures shall be protected against lightning inaccordance with NFPA recommendations.

2.13.4.2 Down conductors from air terminals or lightning mast shall beprovided with an individual ground rod as well as a connection to theplant ground grid.

2.14. Lighting

2.14.1. Illumination Levels

Illumination levels shall be in accordance with the IES standards or perrequirements described in the Caltex Safety in Design Manual.

2.14.2. Fixtures and Circuits

2.14.2.1 High-pressure sodium fixtures shall be used for outdoor lighting andhigh-bay lighting in shops and warehouses.

2.14.2.2 Fluorescent fixtures shall be used for general lighting in buildings.

2.14.2.3 Incandescent fixtures shall be used for standby lighting and gage glassillumination.

2.14.2.4 Floodlights shall be used to maximum extent possible for general arealighting.

2.14.2.5 Floodlights, streetlights, and high-bay lighting shall have ballast ratedfor 120/240 volt; all other fixtures shall be rated for 120 volt.

2.14.2.6 Lighting shall be designed so that it will not be disturbed during anymotor starting. A separate power source might be used for this

purpose.

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2.14.2.7 Outdoor general lighting shall be grouped at least in 2 groupscontrolled indirectly by individual photoelectric cell. That is: Eachgroup shall have individual lighting contactor located in MCC (or onSwitch Rack). Each contactor is controlled by individual photoelectriccell. This is to avoid the Plant from having no light at all when onlyone of the photoelectric cell is failed. The power source for lightingshall be from a 120/240 AC Distr. Panel.

2.14.2.8 Stand-by lighting shall provide minimal escape lighting in theoperating areas, in the event of a power failure. These fixtures shall becircuited separately from general lighting, but circuits shall be run ingeneral lighting conduits. A standby lighting panel shall be providedwith power supplied from standby bus if available.

2.14.2.9 Wall-pack emergency lights shall be provided in the control room andother strategic locations.

2.14.2.10 Sizing of the auxiliary (lighting) transformer shall be at least 130 % of

load demand.2.14.2.11 Obstruction light to be installed on communication tower.

2.14.2.12 For exterior lighting, street lighting type is preferred instead offloodlight.

2.15. Conduit and Conduit Fittings

2.15.1. Underground Conduit

2.15.1.1 Underground conduit shall be of HWC (Heavy wall Conduit), rigidsteel, hot-dipped galvanised. PVC or fibre type conduit is not allowed.

2.15.1.1 Rigid steel galvanized conduit (HWC) shall be used for all lateral runs

from non-metallic conduit duct banks, and risers.

2.15.1.2 Threads of metallic conduit and couplings shall be coated with anapproved compound, which shall not insulate the joint, before being

joined.

2.15.1.3 Cable pulling calculations shall be made as required, to ensure that thecable will not be damaged during installation.

2.15.1.4 All underground conduits shall be encased in a concrete envelopeproviding a minimum outside encasement of three inches on all sides.

2.15.1.5 The top of the concrete envelope shall be a minimum of 18 inchesbelow finished grade and shall be coloured red by sprinkling red oxide

on the freshly poured concrete. The concrete envelope shall be omittedwithin the confines of building foundations.

2.15.1.6 Wherever the concrete encased conduit is subject to heavy traffic suchas at roadway crossings, it shall be structurally analysed andreinforced with steel reinforcing bars.

2.15.1.7 Conduit entering Switchgear, motor control centre, and similarequipment through a concrete floor shall terminate in couplings set

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flush with the finished floor, rippled, with a ground bushing, andsealed with a plastic sealing compound.

2.15.1.8 Where conduit rises above grade, the encasing concrete shall beextended a minimum of three inches above grade and be sloped for

water run off.

2.15.2. Aboveground Conduit and Fittings

2.15.2.1 Above ground conduit shall be rigid steel, hot-dipped galvanised(HWC) except in wet, humid or corrosive atmospheres wherealuminium, plastic coated, or plastic conduit may be better suited.Above ground conduit shall be securely and adequately supported andgrouped in a selected portion of the pipe way.

Conduit shall be supported in accordance with the National ElectricalCode, Article 346-12.

2.15.2.2 Aboveground conduit shall be minimum, except that conduit

may be used for short runs to instruments, telephones, and outdoorcontrol boards.

2.15.2.3 Long radius elbows (factory bends) shall be used for 1- inch conduitand larger. Field bends shall be in accordance with the NationalElectrical Code.

2.15.2.4 During construction, temporary openings in the conduit system shallbe plugged or capped to prevent entrance of moisture and foreignmatter.

2.15.2.5 Conduit between pipe supports and equipment may be supported frompiping (6-inch minimum clearance) except non insulated hot lines(above 302

oF / 150C), 12-inch minimum clearance), lines that

vibrate, and lines requiring frequent maintenance.

2.15.2.6 Conduit fittings shall be selected in accordance with the NationalElectrical Code.?? For unclassified and Division 2 areas not requiring splices in

wiring, the following conduit fittings shall be used:

1 Inch and smaller Crouse-Hinds Form 7 or anapproved substitute

1 Inches and larger Crouse-Hinds Form 8 or anapproved substitute

Copper free aluminium fittingsand aluminium conduit Crouse-Hinds Mark 9 or anapproved substitute

Note: Where splices are required, boxes having sufficient volume thatcomply the National Electrical Code shall be used.

2.15.2.7 Expansion fittings shall be installed in long straight, horizontal, andvertical conduit runs. The maximum distance without an expansionfitting shall be 100 feet for aluminium conduit and 150 feet for rigid

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steel conduit. Location of the expansion fittings shall be shown on theelectrical conduit drawings.

2.15.2.8 Vented drains or drain seals shall be provided at the low point of long,vertical, or horizontal runs of conduit where condensation could

accumulate, and in outdoor areas where conduit enters boxes orenclosures from above.

2.15.2.9 Connections to equipment requiring removal from service or subjectedto vibration or movement shall be made with flexible conduit. Liquidtight flexible metal conduit and approved fittings shall be used foroutdoor equipment in classified and Class I, Division 2, locations.

2.15.2.10 Conduit connections to heavy outdoor pendant lighting fixturessubjected to vibration or movement shall be made with approvedflexible couplings.

2.15.2.11 EMT (Electrical Metallic Tubing) may be used in indoor locationswhere the conduit will not be subject to sever physical damage and

where hazardous atmospheres do not exist, such as office buildings,administration buildings, work houses, change houses, and similar

buildings.

2.15.2.12 Control stations installed in classified areas shall be the factory-sealedtypes.

2.16. Cable Trays

2.16.1. Installation in Cable Tray shall be used as practical as possible instead ofunderground installation.

2.16.2. Overhead cable tray shall be aluminium or hot-dipped galvanised steel. Incorrosive areas, fibber-glass or an equivalent material shall be used.

2.16.3. The tray types may be vertical or horizontal, of ladder, trough, or solid bottomdesign, with adequate condensation drain holes.

2.16.4. Use of cable tray shall be limited to Class 1, Division 2, and unclassified areas.

2.16.5. Straight sections and fittings shall have the provision and standard parts forcovers when required for a specific installation.

2.16.6. Tray straight sections shall be of 12 feet and 24 feet in length.

2.16.7. Cable tray fill shall be in accordance with cable types and methods prescribed inthe National Electrical Code.

2.16.8. Fabrication specifications and fittings support shall be in accordance with NEMA

VE-1 for cable tray.

2.16.9. Tray fittings shall be identical to straight sections in materials, rung spacing, andstrength.

2.16.10. Tray fittings shall have adequate radii for the cable to be installed.

2.16.11. Cable tray connectors shall be rigid straight, adjustable, or expansion type.Standard accessories used to supplement straight sections and fittings shall be

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dropouts, conduit adapters, dead-ends, non-combustible dividers, cable clips,tray-to-box connectors, and hold-down hardware.

2.16.12. Each cable tray system shall be connected to the plant ground at a minimum oftwo points.

2.16.13. The maximum straight section length of cable tray, when fully loaded inaccordance with the manufacturer's recommendation shall not deflect more thantwo inches.

2.17. Power and Control Wiring

A detailed specification shall be written for 600-Volt wire and cables rated over 600 Voltfor this specific project.

2.17.1. Cables for Service Above 600 Volt

2.17.1.1 Cables for service above 600 volt shall be copper conductors,stranded, shielded, with specified insulation ratings and an overall

cable jacket. The insulation shall be XLPE (cross-linkedpolyethylene), rated of 194oF (90C) conductor temperature in wet or

dry location. MC type is preferred.

2.17.1.2 The current carrying capacity and short circuit withstand of cablesshall be in accordance with NEC and applicable ICEA tables andrecommendations.

2.17.1.3 Power conductors shall be installed in a separate conduit from controlor instrument conductors.

2.17.2. Cables for Service 600 Volt and Below

2.17.2.1 Wire and cable for service 600 volt and below shall be strandedcopper conductor, with 600-volt insulation. The insulation shall be aheat resistant, thermoplastic rated 167 of (75C) copper temperature inwet or dry locations. For high temperature locations, wire withsuitable insulation shall be used.

2.17.2.2 Minimum conductor sizes shall be number 12 AWG for general powerand lighting circuits, and number 14 AWG for control circuits.

2.17.2.3 In general, wire and cables shall be sized in accordance with NEC.

2.17.2.4 Lighting branch circuit wires shall be colour-coded black, red, andblue for phases A, B. and C respectively, and white for the neutral.

2.17.2.5 Multiconductor control cables shall be colour coded or numbered inaccordance with ICEA S-61-402 and NEMA WC-30.

2.17.2.6 The manufacturer's recommendations shall be used for the minimumbending radius of cables and wires.

2.17.2.7 Cable for installation in cable trays shall be approved for trayinstallation.

2.18. Control Systems Instrumentation

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2.18.1. Materials

2.18.1.1 Detail specifications shall be issued for all multi- conductorinstrument wire and cable.

2.18.1.2 Field junction boxes shall be NEMA-4 enclosures minimum, withhinged removable doors and sub panels for terminal strip mounting.

2.18.1.3 Terminal strips for instrument wiring shall consist of 300 V mediumduty screw type terminal blocks mounted on slide-rail strips.

2.18.2. Installation

2.18.2.1 Wiring for field instrument devices shall be accomplished byinstalling individually shielded twisted pairs or triads for mili Amp,DC, or mill Volt signals in cable tray /channel or conduit headersrouted along pipe racks from field junction boxes.

2.18.2.2 Wiring from local field boxes to control room shall be multiple pairsor triad cables with an overall shield for DC and milliamp signals

routed in cable tray. Cables shall have both; individual pair shieldsand overall shields. Wiring for AC signals shall be multi conductorcables routed in cable tray.

2.18.2.3 Home Run instrument cables shall contain 20 percent spare pairs,triads, or conductors or 2 (two) pairs, triads, or conductors, whicheveris greater; and they shall be terminated and tagged at both field

junction box and control room ends.

2.18.2.4 Individual shield drain wires for thermocouple pairs shall be groundedat the instrument head only.

2.18.2.5 Individual shield drain wires for milliamp, DC pairs, and triads shallbe cut and taped at the instrument head.

2.18.2.6 Individual pair shields in multiple pair cables shall be connected tocorresponding single pair shields. Overall shield shall be grounded atthe control panel. Shield wires shall be insulated from ground at the

junction box. There shall be shield continuity through all junctionboxes.

2.18.2.7 Individual shield drain wire for multi-pair thermocouple cables shallbecut and taped at the control room. Individual shield drain wire forall multi-pair and triad cables, other than thermocouple cables, shall

be grounded at the control room.

2.18.2.8 Tagging of all wires or pairs shall be on both sides of each termination

point and junction boxes.2.18.2.9 Individual junction box and conduit systems shall be provided for

millivolt AC and milliamp DC instrument signal levels.

2.18.2.10 Separate cable trays shall be provided for millivolt AC and milliampDC instrument signal levels.

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2.18.2.11 Long parallel runs of conduit or cable trays containing instrumentsignals and power conductors shall maintain the following minimumseparations:?? MilliVolt signals shall be spaced 30 inches from AC cables.?? MilliAmp / DC cables shall be spaced 15 inches from AC cables.

2.18.3. MCC- PLC interconnection

2.18.3.1 MCC-PLC interconnection should be done trough a marshalling relaypanel.

Control and protection devices at MCC and motor side shall beprovided and follow the P&ID requirement especially the Cause &Effect Diagram. Remote control and monitoring for MCC/ swithcgearshall be provided as specified in other specification.

2.19. Receptacles

2.19.1. 480 Volt Power Receptacles

2.19.1.1 480-Volt receptacles shall be 3-wire, 4-pole, 60 amperes, and installedin convenient locations within 150 feet of process unit structures, orareas in which portable power units may be required.

2.19.1.2 480-Volt power receptacles shall be of the same size and rating. Theground pole of each receptacle shall be connected solidly and

permanently to the plant grounding system through the conduit or aseparate ground wire.

2.19.1.3 A maximum of four receptacles shall be connected to one feeder.Feeder cable sizes shall be based on a demand factor of 0.4.

2.19.2. 120 /240 Volt Receptacles

2.19.2.1 120/240 volt receptacles shall be located throughout process units sothat equipment at grade can be reached with extension cords not over50 feet in length. A receptacle shall be located on each platformservicing a manhole on vessels and towers.

2.19.2.2 The ground pole of each receptacle shall be solidly and permanentlyconnected to the plant grounding system through the conduit orseparate ground wire

2.19.2.3 Receptacles installed in classified areas shall be the factory sealedtype and suitable for Class 1 Division 1 and 2 installation.

2.20. Station Building

Station building shall be permanent building as a base case. CONTRACTOR may quote theprefabricated building as an option for reviewed by COMPANY.

2.21. Power Pole Distribution System

2.21.1. Power pole design shall refer to attached COMPANY pole standard drawing andinstallation.

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2.21.2. Power pole for distribution system shall use 8 and 12 steel pipes with steel pilefor pole foundation.

2.21.3. Poles spacing shall 400 feet (125 m) maximum for single pole and 800 feet(250m) maximum for double poles. For single dead end pole, pole span could

reach 500 feet (150 m) maximum.2.21.4. Poles at the point of turn with angle between 3 90 degrees shall be guard wired.

For the straight-line, there shall be minimum shall use one dead end pole B orC, at every 10 span of A type pole (refer to COMPANY standard drawings).

2.21.5. Pole accessories like bolt, nut, washer, clamp, eyebolt, pin insulator, equipmentmounting bracket etc. shall be hot dip galvanized.

2.22. Recloser

2.22.1. Recloser shall be installed to clear out intermittent fault , which occur on a groupof electrical load supplied by 13.8 kV overhead branches.

2.22.2. Recloser shall be vacuum interrupter with Oil as insulation medium, 12 kAinterrupting capacity. It also shall be pole mounted type, 14.4 kV nominalvoltage rating, 560 A continuous current rating, 3phase, 60 Hz., andmicroprocessor based controlled. The Recloser shall be quipped with a storedenergy mechanism, three phase overcurrent protection and a separate staticground fault unit.

2.22.3. Recloser must also be capable for remote monitoring and tripping initiated fromControlled Room and from Master Station at PG &Ts SCADA.

2.22.4. If Radio Frequency communication is applied and specified :

2.22.4.1 Radio communication device consists of field located radiocommunication device and exist. Master communication radio device.

2.22.4.2 Field located radio communication device shall be pre-wired andinstalled at the Recloser control unit and shall be capable tocommunicate with exist. Master communication radio device locatedin Station Control Room.

2.22.4.3 Existing radio Master communication device shall be connected toexisting SCADA system through existing Foxboro C-50 RTU locatedin Station Control Room.

2.22.5. Communication device, which enable Remote monitoring and tripping feature,must transmit open/close status and capable to transmit following via the radiolink to the master station: volt, current, kW, kVAR, power factor, running kWh,and battery test condition.

2.23. Load Break Switch

2.23.1. Load Break Switches shall be installed to connect and to disconnect powersupply manually for a group of 13.8 kV branch circuits to alternate feeder in casemain supply fail and for load balancing or maintenance purposes.

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2.23.2. Load break switch shall be pole mounted type, suitable for overhead line service,manual operated, 15 kV nominal voltage rating, 600 A continuous current rating,3 phase, 60 Hz., 12.5 kA interrupting capacity.

2.24. Capacitor Bank

2.24.1. Capacitor shall be installed on the 13.8 kV overhead distribution line at placeswhere power factor correction is needed.

2.24.2. Capacitor shall be pole mounted type, 13.8 kV line to line voltage or 7960 V lineto ground voltage. Capacitor capacity shall be wye connected, complete with oilswitches, microprocessor based controller with voltage sensing which allowsautomatically switching.

2.25. Fuse Cut Out

2.25.1. Cut-Out fuse required for fusing equipment in the 13.8 kV voltage system shallbe ultra heavy duty interrupting rating, removable, and expendable caps, open

distribution cut out type S1 or approved equal.2.25.2. Design rating of cutout fuse shall be 14.4/25 kV, with 110 kV Impulse withstand

voltage.

2.26. Arrestor

2.26.1. Lightning Arrestor shall be provided for all equipment installed in 13.8 kVoverhead distribution line.

2.26.2. Lightning Arrestor shall be metal oxide varistor and resistance graded gaptechnology, 15 kV voltage rating, porcelain housing complete with NEMA crossarm bracket, and suitable for application in areas with high isokeraunic levels.

2.27. Underground Cable Installation

2.27.1. Cable to well site area shall be routed following a typical COMPANY standarddrawing routing to avoid working area during well work-over work and shall be

properly protected with cable tiles covered with warning tape and marked.Trench depth should be three feet minimum.

2.27.2. Under paved area / process plant cable shall be installed in concrete trench withremovable concrete cover.

2.27.3. Direct buried cable shall be protected with concrete tiles and provided withburied warning plastic tape, cable marker and cable routing identification on

surface.2.27.4. Cable received shall be properly protected from theft, damage and humidity.

2.27.5. Prior to cable laying, the schedules for other work shall be checked to avoidinterference.

2.27.6. Cable numbers, cable sizes, cable laying equipment, etc., shall be checkedagainst the cable schedule table, so that no errors may be committed in cablelaying work.

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2.27.7. In case where cables must cross other cables, the crossing shall be made at anangle of 90 degree to the through run.

2.27.8. Cable shall be laid in a neat, orderly arrangement without twists or wraps.

2.27.9. Both ends of each shall be firmly sealed with insulating tape and / or othersealing materials to prevent the entry of rainwater / moisture.

2.27.10. Sand filling, protective covering and back filling work shall be conducted asearly and promptly as possible.

2.27.11. Cable shall be properly terminated and properly grounded on both ends.

3. EXECUTION

3.1. Field Quality Control

3.1.1. Equipment and materials shall be inspected for shipping damage immediatelyafter receipt at job-site.

3.1.2. In general, checkout and testing of systems and equipment shall be done inaccordance with the standard COMPANY construction procedures andchecklists.

3.1.3. All testing equipment especially the measuring equipment shall be supportedwith test / calibration certificate.

3.1.4. CONTRACTOR shall be responsible for arranging the present of MIGAS orThird party Inspector on behalf of MIGAS to attend FAT (Factory AcceptanceTest) and FT (Field Testing) as necessary.

3.2. Safety

CONTRACTOR shall follow COMPANY procedure when CONTRACTOR has aconstruction activity under power line, such as pilling, lifting the pipes or equipment,digging, excavating, etc.

SP-EL-EE-001

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Transcript of SP-EL-EE-001