Amendment 0001.pdf

W68SBV82628907

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore changed, remains unchanged and in full force and effect.

15A. NAME AND TITLE OF SIGNER (Type or print)

30-105-04EXCEPTION TO SF 30

APPROVED BY OIRM 11-84

STANDARD FORM 30 (Rev. 10-83) Prescribed by GSA

FAR (48 CFR) 53.243

TITLE: McNary Motor Controllers for DP4 & Unw atering Pumps

The purpose of this amendment is to make changes to the specifications as stated in the Summary of Changes. A copy of the revised specification section is attached. The bid opening time has changed from 4:00 p.m. to 2:00 p.m.

1. CONTRACT ID CODE PAGE OF PAGES

J 1 2

16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)

16C. DATE SIGNED

BY 13-Jan-2009

16B. UNITED STATES OF AMERICA15C. DATE SIGNED15B. CONTRACTOR/OFFEROR

(Signature of Contracting Officer)(Signature of person authorized to sign)

8. NAME AND ADDRESS OF CONTRACTOR (No., Street, County, State and Zip Code) X W912EF-09-B-0005

X 9B. DATED (SEE ITEM 11)

16-Dec-2008

10B. DATED (SEE ITEM 13)

9A. AMENDMENT OF SOLICITATION NO.

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

X The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offer is extended, X is not extended.

Offer must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended by one of the following methods:

(a) By completing Items 8 and 15, and returning copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted;

or (c) By separate letter or telegram which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION OF YOUR OFFER. If by virtue of this amendment you desire to change an offer already submitted, such change may be made by telegram or letter, provided each telegram or letter makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

12. ACCOUNTING AND APPROPRIATION DATA (If required)

13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACTS/ORDERS.

IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE

CONTRACT ORDER NO. IN ITEM 10A.

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation date, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(B).

C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER (Specify type of modification and authority)

E. IMPORTANT: Contractor is not, is required to sign this document and return copies to the issuing office.

14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

10A. MOD. OF CONTRACT/ORDER NO.

2. AMENDMENT/MODIFICATION NO. 5. PROJECT NO.(If applicable)

6. ISSUED BY

3. EFFECTIVE DATE

13-Jan-2009

CODE

USAED, WALLA WALLA CONTRACTING DIVISION

JANI C. LONG

201 NORTH 3RD AVE

WALLA WALLA WA 99362-1876

W912EF 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODECODE

EMAIL:TEL:

W912EF-09-B-0005

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

SECTION SF 30 - BLOCK 14 CONTINUATION PAGE

SECTION 26 18 39.01 28 MOTOR CONTROL CENTERS – MEDIUM VOLTAGE, paragraph 2.2, item n – replaced "NEMA 4X" with "NEMA 4, NEMA 12, or gasketed NEMA 3 or 3R"

SECTION 26 18 39.01 28 MOTOR CONTROL CENTERS – MEDIUM VOLTAGE, paragraph 2.2, 1st paragraph (no number or title) – changed text from, " The following are the general site conditions and general criteria for the MCC:” to “ The following are the general site conditions and salient characteristics for the MCC:"

SECTION 26 18 39.01 28 MOTOR CONTROL CENTERS – MEDIUM VOLTAGE, paragraph 2.3, 3rd sub-paragraph (no number or title) – changed text from, " The following is the configuration criteria for the motor controller:" to " The following are the salient characteristics for the motor controller:"

SECTION 00010 - SOLICITATION CONTRACT FORM

The required response date/time has changed from 16-Jan-2009 04:00 PM to 16-Jan-2009 02:00 PM.

(End of Summary of Changes)

McNary Motor Controllers for DP4 & Unwatering Pumps W912EF-09-B-0005

SECTION TABLE OF CONTENTS

DIVISION 26 - ELECTRICAL

SECTION 26 18 39.01 28

MOTOR CONTROL CENTER - MEDIUM VOLTAGE

PART 1 GENERAL

1.1 REFERENCES

1.2 SUBMITTALS

1.3 MANUFACTURER'S QUALIFICATION

1.4 DELIVERY, STORAGE, AND HANDLING

1.5 MATERIALS, EQUIPMENT AND INSTALLATION

1.5.1 Standard Products

1.6 SEISMIC REQUIREMENTS

PART 2 PRODUCTS

2.1 MOTOR CONTROL CENTER

2.2 MCC GENERAL CRITERIA

2.3 MOTOR CONTROLLER (STARTER) UNITS GENERAL CRITERIA

2.3.1 Disconnect Switch

2.3.2 Vacuum Contactor

2.3.3 Fuses and Fuse Holders

2.3.4 Solid-State Motor Controller (Starter)

2.3.5 Protective Relay (Controller)

2.4 CIRCUIT BREAKER SECTIONS

2.5 MCC CONSTRUCTION

2.5.1 MCC Section Assembly

2.5.2 Foundation Frame

2.5.3 Interlocks and Interconnections

2.5.4 Steel Fabrication

2.5.5 Lifting Angles

2.5.6 Additional Sections

2.5.7 Removable Tops and Sides

2.5.8 Wiring Channels

2.5.9 Horizontal Bus

2.5.10 Vertical Bus

2.5.11 Bus Bracing

2.5.12 Incoming Feed Section

2.5.13 Ground Bus

2.5.14 Factory Finish

2.6 COMBINATION MOTOR CONTROL UNITS CONSTRUCTION

2.6.1 General

2.6.2 Section Guide Rails

2.6.3 Draw-out Unit

2.6.4 Unit Interlocks

2.6.5 Door Front Controls and Lights

2.6.6 Isolation Switch

2.6.7 Fuse and Fuse Holder

2.6.8 Identification Plates

2.7 ACCESSORIES

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2.8 SPARE PARTS

2.9 PRODUCT DATA SUBMITTALS

2.9.1 Motor Control Center Data

2.9.2 Motor Control Units Data

2.9.3 Protective Devices Data

PART 3 EXECUTION

3.1 INSTALLATION

3.2 FIELD TESTING

3.2.1 Manufacturer's Field Reports

3.2.1.1 Test Plan

3.2.1.2 Field Test Reports

3.3 SHOP DRAWING CRITERIA

3.3.1 Connection Drawings

3.3.2 Installation Drawings

3.3.3 Certificates

3.3.4 Motor Control Centers Drawings

3.3.5 Motor Control Unit Drawings

3.4 MANUFACTURER'S INSTRUCTIONS

3.4.1 Motor Control Center Instructions

3.4.2 Motor Control Units Instructions

-- End of Section Table of Contents --

SECTION 26 18 39.01 28

MOTOR CONTROL CENTER - MEDIUM VOLTAGE

PART 1 GENERAL

The medium voltage motor control center (MCC) specified shall be provided for three (3) existing unwatering pumps located in the McNary Dam Powerhouse.

1.1 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.

INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS (IEEE)

ANSI C37.46 (2000) For High Voltage Expulsion and Current-Limiting Type Power Class Fuses and Fuse Disconnecting Switches

IEEE C37.20.3 (2001) Metal-Enclosed Interrupter Switchgear

NATIONAL ELECTRICAL MANUFACTURERS ASSOCIATION (NEMA)

NEMA ICS 1 (1993) Industrial Control and Systems

NEMA ICS 2 (1996; R 2004) Standard for Industrial Control and Systems: Controllers, Contractors, and Overload Relays Rated Not More than 2000 Volts AC or 750 Volts DC:

Part 8 - Disconnect Devices for Use in Industrial Control Equipment

NEMA ICS 3 (2005) Industrial Control and Systems:

Medium Voltage Controllers Rated 2001 to 7200 Volts AC

NEMA ICS 5 (2000) Industrial Control and Systems:

Control Circuit and Pilot Devices

NEMA ICS 6 (1993; R 2001) Industrial Control and Systems: Enclosures

INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS (IEEE)

IEEE C2 (2005) National Electrical Safety Code

NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)

NFPA 70 (2005) National Electrical Code

UNDERWRITERS LABORATORIES (UL)

UL 845 (2005; Rev thru Aug 2006) Standard for Motor Control Centers

UL 869A (1998) Reference Standard for Service Equipment

1.2 SUBMITTALS

Government approval is required for submittals with a "G" designation;

submittals not having a "G" designation are for information only. When used, a designation following the "G" designation identifies the office that will review the submittal for the Government. Submit the following in accordance with SECTION 01 33 00 SUBMITTAL PROCEDURES:

SD-02 Shop Drawings

Connection Drawings; G EL

MCC Foundation Design ; G EL

Installation Drawings; G EL

Motor Control Centers Drawings; G EL

Motor Control Unit Drawings; G EL

MCC foundation design; G EL

SD-03 Product Data

Motor Control Center; G EL

Motor Control Units; G EL

Protective Devices

Accessories and Spare Parts List

SD-07 Certificates

Certificates Circuit test certificates shall be submitted on the actual units provided.

Series Rating Certificate; G EL If MCC overcurrent and fault current protective devices are series rated, provide a series rating certificate.

SD-08 Manufacturer's Instructions

Motor Control Center Instructions; G EL

Motor Control Units Instructions; G EL

SD-09 Manufacturer's Field Reports

Test Plan

Submit not later than 30 calendar days prior to field tests.

Field Test Reports Within 14 calendar days after completion of tests, six (6) certified copies of the reports of all tests, including complete test data. Reports of all witnessed tests shall be signed by the witnessing representatives of the Contractor and the Contracting Officer.

1.3 MANUFACTURER'S QUALIFICATION

The MCC equipment manufacturer shall have a minimum of five (5) years experience with the production of equipment of the same type and rating.

1.4 DELIVERY, STORAGE, AND HANDLING

a. The Contractor shall provide written notification to the Contracting Officer 14 calendar days prior to shipment of equipment.

b. The MCC shall be shipped as completely assembled and wired as feasible. The MCC and any other equipment shall be wrapped suitably or otherwise protected from damage during shipment. All electrical material delivered to site, shall until immediately prior to installation, be protected from damaging environmental and construction activities. The equipment shall be kept dry and free from precipitation and condensation during storage, installation, and after installation. All electrical equipment shall be stored in completely enclosed containers and in a humidity-controlled environment. Method of on-site storage and storage containers will be subject to approval by the Contracting Officer.

1.5 MATERIALS, EQUIPMENT AND INSTALLATION

New materials and equipment shall be furnished and any defective material or equipment damaged in the course of installation shall be replaced or repaired. Protect MCC from weather and moisture by covering with plastic or canvas and by maintaining heating within the enclosure. The installations shall be in accordance with the National Electrical Code, NFPA 70, and the National Electrical Safety Code, IEEE C2, except where otherwise specifically shown or specified, in which case the drawings and specifications shall govern. Omission of details on the drawings or in the specifications shall not be construed as permitting deviations from Code requirements.

1.5.1 Standard Products

Material and equipment shall be the standard products of manufacturers regularly engaged in the manufacture of these products and shall essentially duplicate items that have been in satisfactory use for at least two (2) years prior to bid opening. The motor control center shall be new, not used or refurbished.

1.6 SEISMIC REQUIREMENTS

Provide seismic bracing. The motor control center (MCC) "SP2" shall be designed to withstand seismic forces in accordance with all current applicable provisions of ASCE/SEI 7-05 for Seismic Design Requirements for Nonstructural Components. Provide a foundation mounting frame that meet seismic loading requirements for the MCC. The Contractor shall submit MCC foundation design including anchors, seismic calculations, and manufacturer's recommendations prior to installation of the motor control center.

PART 2 PRODUCTS

2.1 MOTOR CONTROL CENTER

Motor control center shall conform to UL 845 and NFPA 70. The MCC shall be installed in a "wet location" for the purposes of NFPA 70. Motor control centers shall be NEMA ICS 2, Class I, Type B, totally enclosed, free-standing, dead-front distribution type with one or more vertical sections. The MCC shall consist of three (3) motor controller units and two (2) medium-voltage circuit breaker sections interlocked with "Kirk Keys."

Provide an Eaton (Cutler-Hammer) AMPGARD Medium-Voltage Motor Control Center (MCC), or an approved equal meeting the technical specifications listed below.

2.2 MCC GENERAL CRITERIA

The following are the general site conditions and salient characteristics for the MCC:

a. Feed Power: 4160 voltage, 3-Phase, 60 Hz, and 150 amp.

b. Two (2) separate and redundant "station service" buses (feeds).

c. Motor starting method: non-reversing, solid-state, reduced voltage (soft-start) with run-bypass.

d. MCC control enclosure for internal and external control, alarm, and interlock integration.

e. NEMA ICS 3, Class E2.

f. Interrupting Rating 50 kA rms symmetrical at nominal voltage.

g. Insulation Voltage: 5000 volts for 4160 volt circuits.

h. Lifting angles: provide.

i. Control power transformer.

j. Service Conditions: NEMA ICS 2.

Temperature: 0 to 40 degrees C Altitude: 300 feet

k. Horizontal (main) Bus or cable: minimum 200 amp. Copper with tin-plating. Included copper ground bus the entire length of control center.

l. Vertical (motor) Bus or cable: 100 amp, copper with tin-plating.

m. Configuration: accessible front and rear.

n. Enclosure: NEMA 4, NEMA 12, or gasketed NEMA 3 or 3R enclosure type and NEMA ICS 6, non-walk-in.

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o. Finish: Manufacturer's standard color or gray (ANSI 61 gray).

p. Enclosure heaters to be 120 VAC, sized by manufacturer.

q. Clamp-type incoming cable termination with adequate space for stress cone installation.

r. BIL: 60 kV.

s. Live Buss Indicator: Provide a Live Buss Indicator display on the front door of each MCC section that has medium-voltage power equipment inside. The Live Buss Indicator display shall have a red lamp, for each phase, that indicates when there is medium-voltage power present in the MCC section. Provide medium-voltage detection devices as required to provide this voltage indication. The Live Buss Indicator circuit voltage shall be less than 120 volts.

t. MCC manufacturer shall provide overcurrent and fault current coordination for the complete MCC assembly including fuses, contactors, soft-starts, current and potential transformers, protective relays and motor. Provide a manufacturer's series rating certificate if protective devices are series rated.

2.3 MOTOR CONTROLLER (STARTER) UNITS GENERAL CRITERIA

Provide combination motor control units for the control and protection of three-phase, 60-hertz squirrel-cage, 4160 VAC induction motors with branch-circuit disconnects and protective devices. Units shall include, but not be limited to, isolation (disconnect) switch, fuses and fuse holders, vacuum contactor, non-reversing reduced voltage solid-state soft-start motor controller (RVSS), motor protection relay, and instrumentation. The general section configuration shall be compartmentalized draw-out unit construction with fused control-power transformers, selector switches, pushbuttons, and indicating lights, as indicated.

Provide the following Cutler-Hammer motor controller unit equipment, or approved equals, that meet the technical specifications shown below:

a. Isolation (Disconnect) Switch: Cutler-Hammer JMT-4/8.

b. Solid-State Motor Starter; non-reversing, soft-start (RVSS):

Cutler-Hammer AMPGUARD IT.

c. Vacuum Contactor: Cutler-Hammer SL 400 vacuum contactor.

d. Protective Relay: Cutler-Hammer MP-4000 or approved equal.

The following are the salient characteristics for the motor controller:

a. Combination non-reversing motor starter controller.

b. Three pole, 5000 VAC, and 100 amp rated.

c. Motor Type and Size: Induction motor rated 200 hp.

d. Isolation disconnect switch.

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e. Fuse protection, current limiting fuse, 5 kV, 50 kA rms symmetrical interrupting in accordance with ANSI C37.46 1.5R.

f. Vacuum Contactor: NEMA ICS 3 draw-out cubical type, with remote racking and silver plated contacts.

g. Solid state "soft-start" reduced voltage starter with run bypass.

h. Motor control unit power protection (motor protection relay).

i. Auxiliary contacts: two (2) normally open and two (2) normally closed for inputs and outputs to external controls.

j. Cover mounted pilot devices: heavy-duty, oil and water tight, NEMA ICS 5.

k. Pilot device contacts: NEMA ICS 5, Form Z rated A150.

l. Pushbuttons: NEMA ICS 5.

m. Indicating Lights: LED (transformer).

n. Selector Switches: Rotary type.

o. Relays (for interfacing): NEMA ICS 5.

p. Control transformers: 120 VAC; furnish with fused primary and secondary and bond un-fused leg of secondary to enclosure.

q. Medium voltage circuits shall have barrier separation from low voltage circuits.

r. Control interface with keypad, LCD display for programming, alarm, current, voltage, status, and fault display.

2.3.1 Disconnect Switch

Provide a mechanical non-loadbreak disconnect (isolation) switch with the following features:

a. Auxiliary contacts including fuse-blown indicator contacts.

b. Interlocks with external equipment, door open safety, and energized.

c. Lockable switch handle.

d. Shutter barriers from switch stabs.

e. Distinctive switch position indication.

f. Ground clips when switch is open.

g. Draw-out assembly with bolt fasteners.

2.3.2 Vacuum Contactor

Provide a motor controller vacuum contactor with the following features:

a. Draw-out truck frame mounted with wheels.

b. Plug connector for low voltage control.

c. Electrically operated close and trip (manufacturer's standard).

d. Four (4) auxiliary (2 NO, 2 NC) contacts (120 VAC, 5 amp rated).

2.3.3 Fuses and Fuse Holders

Provide fuses and fuse holders with the following features:

a. Current-limiting fuses.

b. Fuses shall interrupt faults greater than interrupt rating of contactor.

c. Bolt-on fuses.

d. Fuse blown indication.

2.3.4 Solid-State Motor Controller (Starter)

Provide a reduced voltage solid-state motor "soft-start" (RVSS) with the following features:

a. Pump control option.

b. Programmable reduced voltage start and stop.

c. Run bypass.

d. Meets NEMA ICS 3 and UL 347 standards.

e. Draw-out SCR truck-mounted.

f. Control interface (HMI) with keypad and indicator lights for programming, alarm, current, voltage, status, and fault display.

g. Start interval protection.

2.3.5 Protective Relay (Controller)

Provide multi-function combination motor starter protective relay with the following features:

a. Coordinated motor controller providing full system protection, including low or overvoltage, surge protection, phase unbalance, motor overcurrent protection, locked rotor protection, excessive motor starting, ground fault, and fault current.

b. Programmable motor protection based on motor specification.

c. Branch and motor Protection:

Branch Protection:

1. low or high voltage,

2. low or high current,

3. phase imbalance,

4. ground or line fault,

5. frequency.

Motor fault: solid-state multi-function motor protection:

1. motor overload,

2. locked rotor,

3. ground fault,

4. phase loss/unbalance/reversal,

5. short circuit,

6. thermal overload,

7. start interval.

2.4 CIRCUIT BREAKER SECTIONS

Provide two (2) MCC circuit breaker sections with one (1) circuit breaker in each section. Interlock the two circuit breakers so only one circuit breaker and be closed at one time (commonly described as a "Kirk Key" interlock). Tie the load side of the breakers together and feed Unwatering Pump 2 and Unwatering Pump 3 motor controller sections as indicated. The circuit breaker characteristics shall be:

a. 5000 VAC, 3-phase, 60 Hz, and at least 200 amp continuous rated.

b. 3-pole vacuum interrupter type.

c. "Truck" frame mounted.

d. Minimum 1000 close-open cycles under load without maintenance.

e. Rated operating (control) voltage 125 VDC (90-140 VDC).

f. Indicate contact position, operation counter, and spring charge position.

g. Auxiliary contacts (2-NO, 2-NC).

h. Manual CLOSE-TRIP switch mounted on section door.

i. Meets NEMA ICS 1 and ICS-3 (Part 2), ANSI/IEEE C37.20.3, UL-347, UL 869A.

2.5 MCC CONSTRUCTION

2.5.1 MCC Section Assembly

Provisions shall be made for leveling the entire assembled motor control center sections and bolting them together so that they form a contiguous structural enclosure.

2.5.2 Foundation Frame

Provide a foundation mounting frame that meet seismic loading requirements for the MCC. See "SEISMIC REQUIREMENTS" IN Section "26 20 00.110 28" "INTERIOR DISTRIBUTION" for MCC Foundation Design requirements.

2.5.3 Interlocks and Interconnections

Motor control centers shall contain electrical interlocks, unit control terminal blocks, master control terminal blocks, unit wiring-to-terminal blocks and unit interconnections, and power connection terminal blocks as required.

2.5.4 Steel Fabrication

Covers for motor control centers shall be fabricated from cold-rolled carbon-steel sheets of commercial quality with stretcher-level flatness.

Vertical sections shall be reinforced to form a rigid structure.

2.5.5 Lifting Angles

Lifting angles shall be 7 gage, and shall be provided on the top of each section, shall extend the entire width of the section, and shall be capable of supporting the entire weight of the motor control center section without distortion. Base channels shall be provided with holes to facilitate floor mounting and leveling.

2.5.6 Additional Sections

Design of the motor control centers shall allow addition of sections with the same height and width without major modifications. Top cover shall not sag or be deformed.

2.5.7 Removable Tops and Sides

Top and sides shall have removable covers secured with bolts or fasteners.

Covers shall permit access from the rear to the main bus and bus-tap connections in each vertical section. Access doors to motor control draw-out units, wiring channels, and the protective cover of the main horizontal bus shall provide dead front construction.

2.5.8 Wiring Channels

Horizontal wiring channels shall be provided in the top and bottom of motor control centers for wiring between vertical sections. Horizontal wiring channels shall extend the entire length of the motor control center and shall allow space for duct and conduit entrances. Vertical wiring channels shall be provided in each vertical section for side wiring to individual motor control units. Vertical wiring channels shall extend the entire length of each vertical section. Covers of motor control units and vertical wiring channels shall be side-hinged to the vertical section and fastened in the closed position with captive bolts, screws, or latches.

Horizontal wiring channels shall be removable and fastened in place with captive bolts or screws. A removable steel-plate barrier shall be provided at the tip of each vertical structure to isolate the main horizontal bus from the horizontal wireway.

2.5.9 Horizontal Bus

Horizontal bus structure shall extend the entire length of the motor control center and shall be tinned copper with a continuous rating of 600 amperes.

2.5.10 Vertical Bus

All vertical sections shall be completely bused (400-ampere rating) and electrically interconnected with tin-plated solid copper busbars to accommodate plug-in starter units with main horizontal and vertical buses uniformly positioned and phase sequenced. Main horizontal buses shall be readily accessible for connection of future vertical sections at either end.

2.5.11 Bus Bracing

Buses shall be supported and braced to withstand the short-circuit currents indicated. Contact surfaces of main buses shall be silver-plated and bolted together to ensure conductivity.

2.5.12 Incoming Feed Section

Main incoming lug compartment section shall be provided. Incoming section shall have a isolation switch, fuses and fuse block for each of two (2) 4160 volt, 3-phase feeders. Provide 5000 VAC, 150 amp continuous, 50,000 AIC, current-limiting fuses, coordinated and series rated with downstream fuses.

2.5.13 Ground Bus

A continuous, rigid, tin-plated copper ground bus shall extend through the bottom of the entire assembly and shall ground the stationary structure and equipment. Ground bus shall be capable of carrying the rated short-circuit current available in the motor control center.

2.5.14 Factory Finish

After fabrication, steel surfaces of motor control centers shall be cleaned and phosphatized prior to the application of paint. External and internal surfaces shall be finished with baked enamel or a fast air-drying enamel.

Nonpainted parts shall be cadmium plated or coated with zinc chromate.

2.6 COMBINATION MOTOR CONTROL UNITS CONSTRUCTION

2.6.1 General

The motor control units shall be MCC sections.

2.6.2 Section Guide Rails

Unit spaces in vertical sections shall be provided with guide rails for the support and alignment of motor control draw-out units. Latches shall be provided to ensure complete electrical connection of the draw-out unit with the main bus and to allow removal of the draw-out unit from the motor control center. Plug-in units shall be interchangeable.

2.6.3 Draw-out Unit

Draw-out unit shall be provided with spring-loaded, silver-plated, plug-in stabs for connection to the main bus on the line-side of the motor control unit and fixed terminal blocks for the load-side connections. Wiring shall be accessible from the front. No wiring shall extend into the bus compartment. Unit terminal blocks shall be the split type, allowing unit removal without disturbing outgoing wires.

2.6.4 Unit Interlocks

Motor-control units shall be provided with a single, separate hinged door interlocked with its associated disconnecting device to prevent access to draw-out units when the circuit breaker or isolation switch contacts are closed and the operating handle is in the "ON" position. Doors shall swing open a minimum of 112 degrees. An interlock release shall be provided, however, to defeat the interlocking mechanism and permit access to the draw-out unit using a simple hand tool.

2.6.5 Door Front Controls and Lights

Doors shall be provided with openings for the operating handle of molded-case circuit breakers, isolation (disconnect) switch, thermal-overload relay reset buttons, indicating lights, selector switches, and pushbuttons, as required.

Disconnect switch overload reset button, selector switches, and any indicating lights and pushbuttons shall be operable with the compartment door closed. The ON-OFF position of the main disconnect method shall be clearly indicated with the door closed.

2.6.6 Isolation Switch

Just after the main bus tap for the section feed, provide an isolation switch. The isolation switch shall be a 3-pole, draw-out, manually operated from section exterior, rated for a minimum of 100 amp continuous operation, mounted at the top of the section, and interlock for door open and interlock for when contactor is energized.

2.6.7 Fuse and Fuse Holder

Provide a fuse and fuse holder that shall provide protection for motor and non-motor loads, coordinated with motor protection.

2.6.8 Identification Plates

Provide identification plates affixed to the front hinged door or cover plate of each compartment. Identification plate shall identify the connected load. See NAMEPLATE SCHEDULE and details on the contract drawings.

2.7 ACCESSORIES

The Contractor shall furnish one (1) complete set of handling and testing accessories for testing the removable elements of the isolation switch (vacuum contactor) and soft-start. The complete lot of accessories shall include for each type of contactor and soft-start provided. The accessories shall include the following:

a. Two (2) - Closing lever for manually closing the contactor.

b. Two (2) - Removable hand crank for operating the levering-in device.

c. Two (2) - Special truck for moving contactors about outside of the cabinet.

d. Two (2) - Remote racking devices.

e. Two (2) - Complete set of all special wrenches and tools required for the installation, maintenance and repair of the equipment furnished under this section of the specification.

f. Two (2) - Complete set of control jumpers if required for circuit breaker testing.

g. Two (2) - Sets of keys for key interlocks.

2.8 SPARE PARTS

The Contractor shall provide a complete accessories and spare parts list for approval. Spare parts shall be duplicates of the original parts furnished and interchangeable therewith. The following spare parts shall be furnished for each type and rating of device:

a. One (1) - Isolation switch (vacuum contactor).

b. One (1) - Current transformer.

c. One (1) - Potential transformer.

d. One (1) - Control switch of each type.

e. Two (2) - Indicating lamp assemblies of each type used with lenses.

f. Five (5) - Indicating lamps of each type and rating.

g. Two (2) - Fuses of each type and size used.

h. One (1) - Lot of terminal blocks (one (1) spare for each five (5) terminal blocks of each size).

i. One (1) - Lot of terminal block marking strips (one (1) spare for each five (5) terminal blocks of each size).

j. One (1) - Control relay of each type and rating used.

k. One (1) - Quart of finish paint.

l. One (1) - Solid-state trip unit for vacuum contactor.

2.9 PRODUCT DATA SUBMITTALS

Provide manufacturers product data in sufficient detail to show that the above product specifications have been met.

2.9.1 Motor Control Center Data

Provide manufacturers product data for the complete motor control center to be provided. Provide the "bill of materials" for the equipment to be provided. The product data shall include dimensions, general arrangement, specification information, and compliance with technical references.

2.9.2 Motor Control Units Data

Provide manufacturers product data for the complete motor control unit to be provided. The product data shall include dimensions, general arrangement, specification information, and compliance with technical references.

2.9.3 Protective Devices Data

Protective devices to include fuses, fuse holders, circuit breakers, and motor protective relays. Provide manufacturers product data for the complete motor control center. The product data shall include dimensions, specification information, and compliance with technical references.

PART 3 EXECUTION

3.1 INSTALLATION

Complete assembly shall be electrically and mechanically connected and assembled from coordinated subassemblies shipped in complete sections from the manufacturer. Installation shall be aligned, leveled, and secured to the supporting construction in accordance with the manufacturer's recommendations.

3.2 FIELD TESTING

The Contractor shall provide qualified field service engineering personnel who are fluent in the English language to supervise, test, and install the new equipment specified in this SECTION and related equipment of the same manufacturer during installation. The personnel shall have a minimum of two (2) years experience in the installation and testing of new equipment made by the manufacturer used. The Field Engineering Service Supervisor shall certify that the equipment has been installed in accordance with the manufacturers recommendations and all warranties are in effect. The field engineering service personnel shall be present during both the Contractor's commissioning of equipment and for the Government's commissioning of the system.

Motor-control centers shall be subjected to continuity and insulation tests after the installation has been completed and before the motor control center is energized.

Contractor shall provide test equipment, labor, and personnel to perform the tests required. Continuity tests shall be conducted using a DC device with bell or buzzer.

Motor-control centers shall be completely isolated from extraneous electrical connections. Substation feeder breakers, circuit breakers in switchboards, and other disconnecting devices shall be used to isolate the motor control center under test.

Resistance between phase conductors and between phase conductors and ground shall be not less than 50 megohms.

Prior to final acceptance the motor control center shall be energized and loaded (to the maximum load possible, but not less than 10 percent of expected full load), for a minimum of 10 minutes and the temperature measured, with a non-contact device, to verify connection integrity. The temperature detector shall be accurate within 0.5 degrees C. Each phase temperature of 3-phase circuits and individual connections compared to other similarly loaded connections shall be within 3 degrees C of each other. Temperatures outside these values warrant investigation.

Phase-rotation tests shall be conducted on all three-phase circuits using a phase-rotation indicating instrument. Phase rotation of electrical connections to motors and other connected equipment shall be clockwise.

Test data shall be recorded and shall include location and identification of motor control centers and megohm readings versus time.

Final acceptance shall depend upon the satisfactory performance of the motor control centers under test. No motor control center shall be energized until recorded test data have been approved by the Contracting Officer. Final test reports shall be provided to the Contracting Officer.

Reports shall have a cover letter/sheet clearly marked with the System name, Date, and the words "Final Test Reports - Forward to the Systems Engineer/Condition Monitoring Office/Predictive Testing Group for inclusion in the Maintenance Database."

3.2.1 Manufacturer's Field Reports

3.2.1.1 Test Plan

Provide a test plan that includes the field tests listed above and manufacturers recommended field tests.

3.2.1.2 Field Test Reports

Provide the documentation of the field test listed above and recommended by the manufacturer.

3.3 SHOP DRAWING CRITERIA

Provide the shop drawings as described below.

3.3.1 Connection Drawings

Connection drawings shall be submitted showing the relations and connections of the following items by showing the general physical layout of all controls, the interconnection of one system (or portion of system) with another, and internal tubing, wiring, and other devices.

3.3.2 Installation Drawings

Installation drawings shall also be submitted for the following items in accordance with the paragraph INSTALLATION.

3.3.3 Certificates

Certificates shall be submitted for circuit tests on similar motor control or motor-circuit protector (MCP) units under actual conditions may be submitted in lieu of factory tests on the actual units provided.

3.3.4 Motor Control Centers Drawings

Provide manufacturers shop drawings that show, but not limited to, the MCC dimensions, general arrangement, component block diagrams, wiring diagrams, field connection points, and foundation and lifting connection points.

Include the "bill of materials" (BOM). Provide drawings specific to this installation showing electrical connection points for field power, control, and annunciation equipment and device connections. Show foundation and seismic drawings for securing the MCC for seismic loads.

3.3.5 Motor Control Unit Drawings

Provide manufacturers shop drawings that show, but not limited to, motor control section dimensions, general arrangement, component block diagrams, and wiring diagrams. Include the "bill of materials" (BOM).

3.4 MANUFACTURER'S INSTRUCTIONS

Manufacturer's installation instructions shall be submitted for the following, including special provisions required to install equipment components and system packages. Instructions shall include, but not limited to, installation, operations, and maintenance manuals. Special notices shall detail hazards and safety precautions.

3.4.1 Motor Control Center Instructions

Provide the manufacturers installation instructions.

3.4.2 Motor Control Units Instructions

Provide the manufacturers installation instructions.

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