W912HN-15-R-0023-0004.pdf

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

W912HN-15-R-0023

Thurmond MCC, Sw itchgear and Sw itchboard Supply and Install, J. Strom Thurmond

The purpose of this amendment is as follow s:

(See page 2)

1. CONTRACT ID CODE PAGE OF PAGES

1 71

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

16C. DATE SIGNED

BY 09-Sep-2015

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 W912HN-15-R-0023

X 9B. DATED (SEE ITEM 11)

20-Aug-2015

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 X is extended, 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 1 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

09-Sep-2015

CODE

US ARMY ENGINEER DISTRICT, SAVANNAH

100 WEST OGLETHORPE AVE.

SAVANNAH GA 31401-3640

W912HN 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODECODE

EMAIL:TEL:

W912HN-15-R-0023

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

SECTION SF 1449 - CONTINUATION SHEET

SOLICITATION/CONTRACT FORM

The required response date/time has changed from 14-Sep-2015 04:00 PM to 17-Sep-2015 03:00 PM.

The following have been modified:

SCOPE AND SPECIFICATIONS

SPECIFICATIONS

These requirements cover the work necessary to design, to prepare drawings, data, Operation & Maintenance manuals with installation instructions, to manufacture, to shop test, to prepare and load for shipment, to deliver f.o.b. destination motor control centers (MCC) in Section I, Switchgear in Section II, 120VAC Switchboards in Section III, 125 VDC Switchboards in Section IV for the J. Strom Thurmond Powerhouse. Sections V through VIII cover the work necessary to design, to prepare installation drawings, and to install, make completely operational, and test complete motor control centers in Section V, Switchgear and Switchboards in Section VI for the J. Strom Thurmond Powerhouse. Section VII addresses Contractor’s Site Operations requirements, and Section VIII addresses Safety and Health requirements. The manufacturer of all equipment provided under this contract shall have a minimum of 5 years experience in the successful manufacture of the specific equipment required. This contract will have a performance period of 730 calendar days after contract award date.

SECTION I

MOTOR CONTROL CENTER EQUIPMENT SUPPLY

1.1. General Information

A. Scope Of Work

This section covers the work necessary to design, prepare drawings, data and to manufacture, shop test, prepare and load for shipment and to deliver f.o.b. destination (MCCs) for use in 60 Hz AC systems, rated 600V or less for the J. Strom Thurmond Powerhouse.

1.2. Submittals – for Government Approval

A. The following information shall be submitted for approval:

a. Master drawing index

b. Front elevation

c. Plan view

d. Side view

e. Single line

f. Unit wiring schematic diagrams depicting remote devices

g. Unit connection diagrams

h. Master terminal block drawing

i. Nameplate schedule

j. Component schedule

k. Conduit entry/exit locations

l. Assembly ratings including:

i. Short-circuit rating

ii. Voltage

iii. Continuous current

m. Major component ratings including:

i. Voltage

ii. Continuous current

iii. Interrupting ratings

n. Cable terminal sizes

o. Product data sheets

p. Operations & Maintenance manual

B. Where applicable the following information shall be submitted for approval:

a. Bus connection

b. Connection details between close-coupled assemblies

c. Composite floor plan of close-coupled assemblies

d. Key interlock scheme drawing and sequence of operations.

2. Motor Control Center

2.1.General

A. The Motor Control Center shall be of the 600 volt class and suitable for operation on a three-phase, 60 Hz system. The system operating voltage shall be 480VAC.

2.2. Assembly

A. Structures shall be totally enclosed deadfront, free-standing assemblies. They shall be 90 inches high, 20 inches wide, and 21 inches deep for front-mounted units, or otherwise approved. Each section shall contain a horizontal wireway at the top and bottom, isolated from the horizontal bus and shall be readily accessible through a hinged cover. Adequate space for conduit and wiring to enter the top or bottom shall be provided without structural interference.

B. All full voltage starter units through NEMA Size 5 shall be of the drawout type.

Drawout provisions shall include a positive guide rail system and stab shrouds to absolutely ensure alignment of stabs with the vertical bus. Drawout units shall have a stab assembly for connection to the vertical bus. No wiring to these stabs shall extend into the bus compartment. Units shall be equipped with side-mounted control terminal blocks rated 600 volts. Knockouts shall be provided for the addition of future terminal blocks. In addition, a master terminal block shall be located in the bottom wireway, readily accessible through a hinged cover. All control wire to be standard type SIS, 14 gauge minimum.

C. All drawout units shall have a withdrawable stab assembly allowing the primary voltage to be disconnected with the unit door closed. The withdrawable assembly shall accept a standard 3/8” square drive socket.

D. The unit stabs shall have shrouds that extend into the labyrinth vertical bus.

E. The withdrawable stab system shall provide 2-position indication (Connected/

Withdrawn).

a. Connected with Red Indication – Primary voltage Stabs fully extended and connected to the vertical bus; The control power stabs are engaged.

b. Withdrawn with Green Indication - Primary voltage Stabs are disconnected and shuttered from the vertical bus; The control power is de-energized

F. The unit withdrawable stab assembly shall include a unit mounted shutter to isolate the primary stabs from the vertical bus when in disconnected position. Visual Indication for the unit withdrawable shutter assembly shall be provided.

a. Shutter open with red indication

b. Shutter closed with green indication

G. All drawout units shall have latches that engage the unit divider above the unit to lock the unit into place prior to engaging the primary power stabs onto the vertical bus.

This feature shall prevent inserting the unit with the primary power stabs extending from unit

H. Line and load side finger protection shall be provided on breakers and fuses

I. Remote motorized accessory shall be supplied to allow insertion and retraction of the primary power stabs from the vertical bus

J. All drawout units shall be secured by a quarter turn indicating type fastening device located at the top left of the unit. Each unit compartment shall be provided with an individual front door.

K. An operating mechanism shall be mounted on the breaker of each unit. It shall be mechanically interlocked with the unit door to prevent access unless the disconnect is in the OFF position. A defeater shall be provided to bypass this interlock. With the door open, an interlock shall be provided to prevent inadvertent closing of the disconnect. A second interlock shall be provided to prevent removal or reinsertion of the unit while in the ON position. Padlocking facilities shall be provided to positively lock the disconnect in the OFF position with from one (1) to three (3) padlocks with the door open or closed. In addition, means shall be provided to padlock the unit in a partially withdrawn position with the stabs free of the vertical bus.

2.3. Bus

A. Each structure shall contain a main horizontal copper bus, with minimum ampacity of 600 amps. The horizontal bus shall be rated at 65 degrees C temperature rise over a 40 degree C ambient in compliance with UL standards. Vertical bus feeding unit compartments shall be copper and shall be securely bolted to the horizontal main bus.

All joints shall be front-accessible for ease of maintenance. The vertical bus shall have a minimum rating of 300 amps.

B. The vertical bus shall be completely isolated and insulated by means of a labyrinth design barrier. It shall effectively isolate the vertical buses to prevent any fault-generated gases to pass from one phase to another. The vertical bus shall include a shutter mechanism that will allow the unit stabs to engage the vertical bus every 6 inches and provide complete isolation of the vertical bus when a unit is removed.

C. Buses shall be braced for 65,000 amperes rms symmetrical.

D. A copper ground bus shall be furnished firmly secured to each vertical section structure and shall extend the entire length of the motor control center.

2.4. Wiring/terminations

A. Wiring shall be NEMA Class II, Type C.

B. DeviceNet wiring shall be in accordance with the Open DeviceNet Vendors

Association (ODVA) specification. Trunk cable shall be provided in the upper wireway, with T connectors for each MCC section. Drop cables and T connectors shall be used in the vertical wireway to connect each DeviceNet device.

2.5. Motor controllers

A. Combination starter units shall be full-voltage non-reversing, unless otherwise stated.

B. Motor Starters

1. Provide solid-state motor starters controlled by an application-specific microprocessor, sized as according to the referenced drawings from the Motor Control Centers as well as the conduit and cable schedule, and fitted with at least 3 normally open and 1 normally closed associated contacts.

2. Provide one (1) current sensor for each phase to provide motor running overload protection.

3. Provide phase loss protection and phase unbalance protection.

4. Provide ground fault protection with a start delay and a run delay to prevent nuisance tripping on startup.

5. Provide an application-specific microprocessor with the following features:

i. Microprocessor shall measure control circuit voltage and prevent closing of the coil on voltages below 78V AC and/or voltages above

135V AC.

ii. Microprocessor shall apply voltage to the coil such that a minimum of main contact bounce occurs on contactor closure.

iii. Microprocessor shall continuously measure coil circuit voltage and current so as to maintain constant coil power at a level to maintain main contact closure and minimize coil power consumption.

6. Accessories

i. Provide control modules to perform input/output control functions. Modules shall incorporate faceplates of pushbuttons and LEDs. Modules shall be provided with the ability to replace conventional “start,” “stop,” “hand,” and “auto,” control functions and with the ability to replace conventional indicating light status of “run,” “off,” “overload alarm,” and “overload trip.”

ii. Provide a metering device, with DNP or ModBus communications, capable of displaying three phase amperage, voltage, frequency, and power factor for each MCC.

iii. Provide a local metering device to display motor current and load information for each MCC starter unit. Note: metering and DeviceNet communication must be compatible and provide simultaneous operation.

iv. Provide an addressable communication card capable of transmitting control and diagnostic data over a DeviceNet or equivalent network to PLC. The starter shall also be capable of transmitting the following data:

1. On-Off reset control functions

2. Number of starter operations of each starter

3. Status (On, Off, Tripped, No Response)

4. Current in each phase of each motor

5. Overload protection settings

6. Trip current magnitude

7. Hand/Manual/Local control

8. Phase loss

9. Phase unbalance

10. Ground fault

C. Each starter shall be equipped with a fused control power transformer.

2.6. Overcurrent devices

A. Circuit Breakers

1. Individual feeder breakers shall have a minimum interrupting capacity of 65 kAIC at rated voltage.

2.7. DeviceNet or equivalent devices

A. Motor Control Center assemblies shall be provided with a factory assembled DevicelNet equivalent communications network capable of providing direct connectivity between the MCC and the plant PLC.

B. DeviceNet systems installed in the MCC shall include a complete and tested cabling system compliant and approved by the ODVA DeviceNet standard. The cabling system shall consist of trunk and drop line cabling including all splice and tap connectors and terminating resistors. The trunk and drop cabling shall be 600 Volt insulation and include electrical shielding as per the standard ODVA DeviceNet specification. Non-standard, non-shielded flat cable will not be accepted.

C. The DeviceNet trunk line shall be installed in the top horizontal wireway of the

MCC. The trunk line shall be thick cable as specified by the ODVA standard.

Sealed, threaded, and keyed device tap connectors located and mounted in the top horizontal wireway shall “T” off the top wireway to drop cable mounted in each of the vertical wireways. Each DeviceNet device shall have a dedicated drop line connection via a T connector. The drop cable shall be thin cable as specified by the ODVA standard. Each section of motor control shall be connected with sealed, threaded, and keyed device tap connectors located and mounted in the top horizontal wireway. All cabling shall be securely supported and attached to the MCC structure in accordance with the contract drawings and the manufacturer’s recommendations.

D. DeviceNet or equivalent communications modules shall be provided at each device interfacing to the DeviceNet or equivalent field bus. The communications modules shall be installed in the unit device compartment or bucket, and shall be direct-connected to the DeviceNet or equivalent drop cable. Each device shall be provided with the appropriate factory fabricated cable for interfacing the communications module with the associated DeviceNet or equivalent device, as applicable.

E. Port expanders shall be provided where required to permit multiple device communications. The port expander shall be installed in the associated unit device compartment.

F. Motor control centers shall provide required 24 VDC power to adequately supply power to all the devices in the MCC. The power supply shall be installed in an MCC unit with a disconnect switch, supplementary protection and a cable tap box to prevent damage to/from other power supplies on the network.

2.8. Enclosures

A. The type of enclosure shall be in accordance with NEMA standards for type 1A with gasketed doors. All enclosing sheet steel, wireways and unit doors shall be gasketed.

2.9. Compartments

A. The compartments of the switchgear shall be filled with equipment to match the designations and ratings of the equipment on the attached MCC units’ spreadsheets.

B. Any compartments listed as spare shall be equipped with a bus stab assembly suitable for future mounting of circuit breakers, motor starters, etc.

C. Compartments listed for DC devices will be barriered to block compartments from vertical bus, and be outfitted with DC components (breaker, starter, overload, etc.), with DC feed provided by the government. Bucket shall be located in an area so that the DC feed will be easily installed.

D. Compartment listed for 480V receptacles will contain a breaker only.

E. Dual-fed MCC feeder breakers shall be interlocked to prevent the closing of both feeder breakers at any one time.

2.10. Nameplates

A. Engraved nameplates, mounted on the face of the assembly, shall be furnished for each compartment. Nameplates shall be laminated plastic, white characters on black background.

B. Furnish master nameplate giving switchgear designation, voltage ampere rating, short circuit rating, and manufacturer’s name.

C. Control components mounted within the assembly, such as fuse blocks, relays, pushbuttons, switches, etc., shall be suitably marked for identification corresponding to appropriate designations on manufacturer’s drawings.

D. Engraving schedule can be found on the attached spreadsheet.

2.11. Finish

A. The finish will be of a light gray ANSI 61

2.12. Drawings

A. Digital copies of all drawings shall be provided in editable Microstation or AutoCAD format on a CD or DVD. No thumb drives will be accepted.

2.13. Operation & Maintenance Manual

A. The Operation & Maintenance manual shall be provided in Portable Document Format (PDF) on a CD or DVD. All pages within the document shall be numbered sequentially. All drawings shall also be incorporated into the O&M manual.

B. Six (6) hard copies of the O&M manual shall be provided.

2.14. Factory Witness Testing

A. The Government shall be given the option to witness the factory testing of all

MCCs. The Government shall be notified 14 days in advance of the factory testing.

SECTION II

SWITCHGEAR EQUIPMENT SUPPLY

These requirements cover the work necessary to design, to prepare drawings, data, installation instructions, to manufacture, to shop test, to prepare and load for shipment, to deliver f.o.b.

destination:

i. low voltage, metal-enclosed, deadfront type switchgear assembly using drawout power circuit breakers for use in 60 Hz ac systems, rated 600V or less.

2.15. General Information

2.16. Submittals

e. Master drawing index

f. Front view elevation

g. Floor plan

h. Top view

i. Single line

j. Unit wiring diagrams depicting remote devices

k. Nameplate schedule

l. Cubicle and component schedule

m. Conduit entry/exit locations

n. Assembly ratings including:

i. Short-circuit rating

ii. Voltage

iii. Continuous current

o. Major component ratings including:

i. Voltage

ii. Continuous current

iii. Interrupting ratings

p. Cable terminal sizes

q. Product data sheets

r. Busway connection

s. Connection details between close-coupled assemblies

t. Composite floor plan of close-coupled assemblies

u. Key/Electrical interlock scheme drawing and sequence of operations.

v. Final as-built drawings and information for all items

w. Unit wiring diagrams

x. Breaker control diagrams

y. Certified production test reports

z. Installation information

aa. Seismic certification and equipment anchorage details.

A. The final (as-built) drawings shall include the same drawings as the construction drawings and shall incorporate all changes made during the manufacturing process.

2.17. Ratings

A. The ampacity of the system shall be no less than 1600A.

B. The assembly shall be rated to withstand mechanical forces exerted during short-circuit conditions with 100,000 amps of available fault current at rated voltage.

C. All circuit breakers shall have a minimum symmetrical interrupting capacity of 65,000 amperes. Short time ratings shall be equal to interrupting ratings.

2.0 Products

A. Switchgear – The switchgear shall meet at a minimum the following criteria.

a. The switchgear enclosure should be NEMA 1 and offer ANSI Type 2 arc protection against arcs in breaker, bus, or cable compartments around the entire perimeter of the equipment

b. The switchgear should be bolted directly to contractor supplied floor sills and set level in concrete per manufacturer’s recommendations

c. The switchgear design should include the following features:

i. An arcflash reducing maintenance system

ii. Safety shutters

iii. Strengthened one-piece door and latches

iv. An insulated silver-plated copper bus sized based on ANSI standard temperature rise criteria of 65 degrees C over a 40 degrees C ambient (outside the enclosure)

v. A non-insulated copper ground bus that is firmly secured to each vertical section of the structure and extends the entire length of the switchgear and has a short-time withstand rating that meets that of the largest circuit breaker in the assembly

vi. Vented cable compartment segregation barrier

vii. Allow for drawout of 800-5000A frame size breakers into the disconnected position with the door closed while simultaneously protecting the operator from any dangerous gasses during an arc event.

viii. Up to four-high breaker configuration with no additional restrictions

ix. A venting system that directs arc gasses out the top of the enclosure, regardless or the arc origination location

x. A removable lifting device shall be provided with each shipping section and shall be capable of facilitating movement of the section into installation position

xi. A rail-mounted lifting device on top of the switchgear that can access each breaker compartment for removing and installing breakers from the disconnected position

xii. A light gray ANSI #61 finish

d. All control wiring within the assembly shall be 14 gauge stranded type SIS with machine printed labels on each end and shall terminate on each end at a suitable terminal block

e. Where additional space is required for instrumentation, CPT’s, metering, etc., a barriered instrumentation compartment shall be used

f. The switchgear should meet the following industry standards:

i. UL 1558, UL 1066, UL 891, and UL 489

ii. ANSI C37.20.1, ANSI C37.17, ANSI C37.16, ANSI C37.13, ANSI C37.51, ANSI C37.50, and ANSI C37.20.7

iii. Third-party (UL) witness tested C. Breakers – The breakers shall meet, at a minimum, the following criteria:

a. Breakers of 800-3200A frame sizes should be the same physical size and be able to be placed in any position designated for a breaker in the switchgear.

Refer to Table 1, proposed layout, and reference drawings attached in Appendix B for breaker ratings, positions, and quantity.

b. The breakers’ controls and electronic metering/tripping devices are to be powered by 125VDC. In the event that devices cannot be powered by 125VDC 120VAC shall be substituted. If any devices cannot accept either of these, then adequate power supplies that accept a 125VDC and 120VAC input shall be supplied.

c. The breakers’ design should include the following features:

i. An interlock that prevents the levering door from being opened if the contacts are welded, protecting personnel from exposure to live primary contacts. This door cannot be opened until the contacts are in the open condition

ii. A “making current release” that prevents the breaker from closing in on a fault exceeding 25 times the nominal current

iii. Anti-pump control mechanism that prevents any attempts to reclose the breaker on a short circuit fault if the close signal (mechanical or electrical) is maintained

iv. Three position indicators (red, yellow, and green) on the faceplate for drawout mounting. The colors should identify the breaker positions as follows:

Red (Connected) – Both main and secondary contacts are connected and the breaker is ready for normal operation

Yellow (Test) – Main contacts are disengaged, secondary contacts are engaged allowing all functions of the breaker and trip unit to be tested

Green (Disconnected) – A storage position in the compartment but the breaker is open and disconnected

v. Easily accessible secondary wiring terminals

vi. All breakers shall have a 125VDC shunt tripping mechanism for remote controlled breaker opening when energized by an input voltage ranging from 77 to 138VDC. The shunt trip device wiring of each circuit breaker shall be routed to centrally located terminal blocks located in structure number 6 from the proposal documentation.

vii. All breakers shall have a 125VDC spring release mechanism for remote controlled breaker closing when energized by an input voltage ranging from 77 to 138VDC. The spring release mechanism wiring of each circuit breaker shall be routed from each to centrally located terminal blocks located in structure number 6 from the proposal documentation.

viii. All breakers shall have a factory installed 125VDC motor operator kit, internally mounted inside the breaker that charges the closing springs automatically for remote or local closing.

ix. A manual spring-charging handle

x. A trip flag

xi. A contact status indicator (Open or Closed)

xii. A spring status indicator (Charged or Discharged)

xiii. A “Push Off” button to open the breaker

xiv. A “Push On” button to close the breaker

xv. An operations counter

xvi. A padlockable levering device

d. Each breaker shall be fitted with an electronic tripping device. The device must provide, at a minimum, the following features:

i. Protection and Coordination

Fixed Rating Plug (In) Overtemperature Trip Long Delay Setting: 0.4-1.0 x (In) Long Delay Time I2t at 6 x (Ir): 2-24 seconds Long Delay Time I4t: 1-5 seconds Long Delay Thermal Memory High Load Alarm: 0.5-1.0 x (Ir) Short Delay Pick-Up: 150% M1 x (Ir) Short Delay Time: I2t at 8 x (Ir): 100-500ms Short Delay Time Flat: 100-500ms Short Delay Time ZSI Instantaneous Pick-Up: 200-M1 x (In) Off Position Ground Fault Alarm: 25% - 1200A UL Ground Fault Pick-Up: 25% - 1200A UL Ground Fault Delay I2t at .625 x (In): 100-500ms Ground Fault Delay Flat: 100-500ms Ground Fault ZSI Ground Fault Thermal Memory

ii. System Diagnostics Cause of Trip LED’s Electronic Operations Counter Magnitude of Trip Information Remote Signal Contacts 2 Programmable Contacts

iii. System Monitoring 24 Character LED Digital Display Current (%FS Sensor): 1% Voltage (%) L to L: 1% Power and Energy (%): 2% Apparent Power kVA and Demand Reactive Power kVAR Power Factor Crest Factor Power Quality – Harmonics

%THD

3 Event Trip Log Waveform Capture

iv. Units shall be capable of communicating on a DeviceNet, ModBus, or equivalent network to a customer supplied PLC

e. The breakers should meet the following industry standards:

i. ANSI C37.13, ANSI C37.16, ANSI C37.17, and ANSI C37.50

ii. NEMA SG3

iii. UL 1066

iv. CSA 22.2

D. Operation and Protection

a. The buses will be connected to an ungrounded delta 480V 3-phase system and normally operates with both feeder breakers (812 and 822) closed and the tie-breaker (830) open

b. In the event of one bus losing power the normal feeder for that bus is to open and the tie-breaker is to close

c. A ground detection relay is to be provided for each bus that receives its voltage signal from the open delta connected PT’s shown in the attached drawings. It should alarm on the first ground and if a second occurs it should trip the feeder for that bus

E. Nameplates

a. Engraved nameplates, mounted on the face of the assembly shall be furnished for all enclosures as listed on the attached table

b. The nameplates shall be laminated plastic, white characters on black background, and secured with screws

c. Switchgear should include a main nameplate that lists the voltage rating, ampere rating, short circuit rating, and the manufacturer’s name

d. Characters shall be 3/16-inch high, minimum

F. Accessories

a. Portable test set for testing all functions of circuit breaker and electronic tripping devices without removal from switchgear

b. Overhead-circuit-breaker lifting device, track mounted at top front of switchgear, complete with hoist and lifting yokes

c. Remote motor-operated breaker racking device

d. At least one-half pint of paint matching enclosure finish

G. Software

a. If available, two licenses for software capable of adjusting equipment operational parameters shall be provided along with a users manual, a list of the parameters that can be adjusted, and the default values for each parameter.

b. If any software logic is developed specifically for this equipment two copies of the software used to develop the software logic shall be provided. Each copy shall be provided with a license granting sufficient rights to modify any logic software originally developed with this software.

c. The source file for the any logic software shall be provided in a format capable of being modified in the development software provided in subsection b above with no restrictions.

H. Assembly

a. The switchgear shall be sized to fit in the location of the existing switchgear.

b. The existing switchgear is the only distribution point of electrical power to plant equipment and lighting including critical components such as station drain pumps. In addition no power generation can take place if the switchgear is out of service. Therefore the design of the switchgear should be such that installation time is minimized and take into account that during the installation phase the switchgear can not be out of service for more than eight hours at a time.

c. The existing switchgear is arranged in two sections connected by a tie breaker and critical equipment has two feeds, one from each side of the switchgear.

The design of the switchgear should allow for temporary partial installation and safe operation of such an installation in order to minimize the amount of time the switchgear is out of service during the installation phase.

SECTION III

120VAC DISTRIBUTION BOARD SUPPLY

These requirements cover the work necessary to design, to prepare drawings, data, installation

i. metal enclosed, deadfront, type distribution board for use in 120VAC 2 wire, ungrounded system using molded case circuit breakers

1.1 GENERAL INFORMATION

The Contractor shall supply a free-standing, dead-front type low voltage distribution switchboard suitable for use in a 2 wire ungrounded 120VAC system, utilizing group mounted circuit protective devices as specified in this scope. See included equipment chart and drawings for each enclosure for general layout requirements.

1.2 SUBMITTALS

b. Front view elevation

c. Floor plan

d. Top view

e. Single line

f. Nameplate schedule

g. Component schedule

h. Conduit entry/exit locations

i. Assembly ratings including:

i. Short-circuit rating

ii. Voltage

iii. Continuous current

j. Major component ratings including:

iv. Voltage

v. Continuous current

vi. Interrupting ratings

k. Cable terminal sizes

l. Product data sheets

m. Busway connection

n. Connection details between close-coupled assemblies

o. Composite floor plan of close-coupled assemblies

p. Final as-built drawings and information for all items

q. Unit wiring diagrams

r. Certified production test reports

s. Installation information

t. Seismic certification and equipment anchorage details.

The final (as-built) drawings shall include the same drawings as the construction drawings and shall incorporate all changes made during the manufacturing process.

1.3 RATINGS

A. The ampacity of the system shall be no less than 200A.

B. The assembly shall be rated to withstand mechanical forces exerted during short-circuit conditions when connected directly to a power source having available fault current 65,000 amperes symmetrical at rated voltage

1.4 ASSEMBLY

1.4.1 Switchboard shall consist of the required number of vertical sections bolted together to form a rigid assembly. The sides and rear shall be covered with removable bolt-on covers. All edges of front covers or hinged front panels shall be formed. Provide adequate ventilation within the enclosure.

1.4.2 Section #1 of the assembly shall include a separate customer metering compartment with a front facing hinged door and include the following:

1.4.2.1 Ground Detection Relay. The relay brand and type shall be submitted to the government for approval. See included drawings for preliminary layout. The relay shall have a 1” X 3” nameplate. Refer to the included list of 120VAC Board Breaker Ratings and Tag Labels for the specific label.

1.4.2.2 Low Voltage Relay. The relay brand and type shall be submitted to the government for approval. See included drawings for preliminary layout. The relay shall have a 1” X 3” nameplate. Refer to the included list of 120VAC Board Breaker Ratings and Tag Labels for the specific label.

1.4.3 All sections of the switchboard shall be front and rear aligned. All protective devices shall be group mounted. Devices shall be front removable and load connections front accessible enabling switchboard to be mounted against a wall.

1.5 BUS

1.5.1 All bus bars shall be silver-plated copper. Main horizontal bus bars shall be mounted such that they are in the same vertical plane. Bus sizing shall be based on NEMA standard temperature rise criteria of 65 degrees C over a 40 degrees C ambient (outside the enclosure).

1.5.2 A copper ground bus (minimum 1/4 x 2 inch) shall be furnished firmly secured to each vertical section structure and shall extend the entire length of the switchboard.

1.5.3 All hardware used on conductors shall be high-tensile strength and zinc-plated. All bus joints shall be provided with conical spring-type washers.

1.6 BREAKERS

1.6.1 Breakers shall be factory installed and provided in accordance with the included listing.

1.6.2 All breakers shall be two pole, rated for 600VAC, and be field removable and interchangeable.

1.6.3 Breakers shall be available in standard sizes ranging from 15-225A.

1.6.4 Protective devices shall be molded case circuit breakers with inverse time and instantaneous tripping characteristics.

1.6.5 Circuit breakers shall be operated by a pad-lockable toggle-type handle and shall have a quick-make, quick-break over-center switching mechanism that is mechanically trip-free.

Automatic tripping of the breaker shall be clearly indicated by the handle position.

Contacts shall be non-welding silver alloy and arc extinction shall be accomplished by means of arc chutes.

1.6.6 Circuit breakers shall have a minimum symmetrical interrupting capacity of 65kA at

480VAC.

1.6.7 Circuit breakers 400 ampere frame and below shall have thermal-magnetic trip units and inverse time-current characteristics.

1.7 WIRING/TERMINATIONS

1.7.1 Small wiring, necessary fuse blocks and terminal blocks within the switchboard shall be furnished as required. Control components mounted within the assembly, such as fuse blocks, relays, pushbuttons, switches, etc., shall be suitably marked for identification corresponding to appropriate designations on manufacturer’s wiring diagrams.

1.7.2 Mechanical-type terminals shall be provided for all line and load terminations suitable for copper or aluminum cable rated for 75 degrees C.

1.7.3 All control wire shall be type SIS, bundled and secured with nylon ties. Insulated locking spade terminals shall be provided for all control connections, except where saddle type terminals are provided integral to a device. All groups of control wires leaving the switchboard shall be provided with terminal blocks with suitable numbering strips.

Provide wire markers at each end of all control wiring.

1.8 NAMEPLATES

1.8.1 Engraved nameplates, mounted on the face of the assembly, shall be furnished for all main and feeder circuits as indicated on the included breaker listing. Nameplates shall be laminated plastic, black characters on white background. Characters shall be 3/16-inch high, minimum. Nameplates shall give item designation and circuit number as well as frame ampere size and appropriate trip rating. Furnish master nameplate giving switchboard designation, voltage ampere rating, short-circuit rating, manufacturer’s name, general order number, and item number.

1.8.2 Control components mounted within the assembly, such as fuse blocks, relays, pushbuttons, switches, etc., shall be suitably marked for identification corresponding to appropriate designations on manufacturer’s wiring diagrams.

1.9 FINISH

1.9.1 Color and finish of the switchboard shall be ANSI 61 light gray.

SECTION IV

125VDC DISTRIBUTION BOARD SUPPLY

These requirements cover the work necessary to design, to prepare drawings, data, installation

i. metal enclosed, deadfront, type distribution board for use in 125VDC 2 wire, ungrounded system, using molded case circuit breakers

The Contractor shall supply a free-standing, dead-front type low voltage distribution switchboard suitable for use in a 2 wire ungrounded 125VDC system, utilizing group mounted circuit protective devices as specified in this scope. See included equipment chart and drawings for each enclosure for general layout requirements.

1.2 SUBMITTALS

b. Front view elevation

c. Floor plan

d. Top view

e. Single line

f. Nameplate schedule

g. Component schedule

h. Conduit entry/exit locations

i. Assembly ratings including:

i. Short-circuit rating

ii. Voltage

iii. Continuous current

j. Major component ratings including

i. Voltage

ii. Continuous current

iii. Interrupting ratings k.Cable terminal sizes

l. Product data sheets

m. Busway connection n.Connection details between close-coupled assemblies o.Composite floor plan of close-coupled assemblies p.Final as-built drawings and information for all items q.Unit wiring diagrams

r. Certified production test reports

s. Installation information

t. Seismic certification and equipment anchorage details.

The final (as-built) drawings shall include the same drawings as the construction drawings and shall incorporate all changes made during the manufacturing process.

1.3 RATINGS

A. The ampacity of the system shall be no less than 600A.

B. The assembly shall be rated to withstand mechanical forces exerted during short-circuit conditions when connected directly to a power source having available fault current 65,000 amperes symmetrical at rated voltage

1.4 ASSEMBLY

1.4.1 The switchboard shall consist of the required number of vertical sections bolted together to form a rigid assembly. The sides and rear shall be covered with removable bolt-on covers or hinged front panels shall be formed. Provide adequate ventilation within the enclosure.

1.4.2 Section #1 shall contain the main input breaker and will meet the follow specifications in addition to those specified in section 1.6 below:

1.4.2.1 Thermal-magnetic, molded case type breaker

1.4.2.2 Trip rating of 300A

1.4.2.3 250VDC

1.4.2.4 10kA interrupting capacity

1.4.2.5 Line side of the breaker will be fed by the station battery

1.4.2.6 Load side will connect to the main horizontal bus of the assembly. See included drawings for additional details

1.4.3 Section #1 of the assembly shall include a separate customer metering compartment with a front facing hinged door and include the following:

1.4.3.1 125VDC ammeter scaled 0-400A and 125VDC nominal rated volt meter

1.4.3.1.1 The main feed from the station batteries shall go to these meters in the panel and then the meters in the panel shall be connected to the main 400A breaker. See drawings for more detail.

1.4.3.1.2 The meters shall provide a 4-20mA output scaled identically as the meter for connection to the plant control system PLC.

1.4.3.1.3 The meter brand and type shall be submitted to the government for approval. See included drawings for preliminary layout. The meters shall each have a 1” X 3” nameplate. Refer to the included list of 125VDC Board Breaker Ratings and Tag Labels for each meters specific label.

1.4.3.2 Ground Detection Relay

1.4.3.2.1 Shall be an ABB Type 27B Battery Ground Detector Relay or equal. The relay brand and type shall be submitted to the government for approval. See included drawings for preliminary layout. The relay shall have a 1” X 3” nameplate. Refer to the included list of 125VDC Board Breaker Ratings and Tag Labels for the specific label

1.4.4 All sections of the switchboard shall be front and rear aligned. All protective devices shall be group mounted. Devices shall be front removable and load connections front accessible enabling switchboard to be mounted against a wall.

1.5 BUS

1.5.1 All bus bars shall be silver-plated copper. Main horizontal bus bars shall be mounted such that they are in the same vertical plane. Bus sizing shall be based on NEMA standard temperature rise criteria of 65 degrees C over a 40 degrees C ambient (outside the enclosure).

1.5.2 All hardware used on conductors shall be high-tensile strength and zinc-plated. All bus joints shall be provided with conical spring-type washers.

1.6 BREAKERS

1.6.1 Breakers shall be factory installed and provided in accordance with the included listing.

1.6.2 All breakers shall be two pole, rated for 250VDC, and be field removable and interchangeable.

1.6.3 Breakers shall be available in standard sizes ranging from 15-225A.

1.6.4 Protective devices shall be molded case circuit breakers with inverse time and instantaneous tripping characteristics.

1.6.5 Circuit breakers shall be operated by a pad-lockable toggle-type handle and shall have a quick-make, quick-break over-center switching mechanism that is mechanically trip-free. Automatic tripping of the breaker shall be clearly indicated by the handle position.

Contacts shall be non-welding silver alloy and arc extinction shall be accomplished by means of arc chutes.

1.6.6 Circuit breakers shall have a minimum symmetrical interrupting capacity of 22kA at

250VDC.

1.6.7 Circuit breakers 400 ampere frame and below shall have thermal-magnetic trip units and inverse time-current characteristics.

1.7 WIRING/TERMINATIONS

1.7.1 Small wiring, necessary fuse blocks and terminal blocks within the switchboard shall be furnished as required. Control components mounted within the assembly, such as fuse blocks, relays, pushbuttons, switches, etc., shall be suitably marked for identification corresponding to appropriate designations on manufacturer’s wiring diagrams.

1.7.2 Mechanical-type terminals shall be provided for all line and load terminations suitable for copper or aluminum cable rated for 75 degrees C.

1.7.3 All control wire shall be type SIS, bundled and secured with nylon ties. Insulated locking spade terminals shall be provided for all control connections, except where saddle type terminals are provided integral to a device. All groups of control wires leaving the switchboard shall be provided with terminal blocks with suitable numbering strips.

Provide wire markers at each end of all control wiring.

1.8 NAMEPLATES

1.8.1 Engraved nameplates, mounted on the face of the assembly, shall be furnished for all main and feeder circuits as indicated on the included breaker listing. Nameplates shall be laminated plastic, black characters on white background. Characters shall be 3/16-inch high, minimum. Nameplates shall give item designation and circuit number as well as frame ampere size and appropriate trip rating. Furnish master nameplate giving switchboard designation, voltage ampere rating, short-circuit rating, manufacturer’s name, general order number, and item number.

1.8.2 Control components mounted within the assembly, such as fuse blocks, relays, pushbuttons, switches, etc., shall be suitably marked for identification corresponding to appropriate designations on manufacturer’s wiring diagrams.

1.9 FINISH

1.9.1 Color and finish of the switchboard shall be ANSI 61 light gray.

SECTION V

MCC INSTALLATION

1. MCC Installation

1.1. GENERAL INFORMATION

1.1.1. Scope of Work

This section covers the work necessary to design, prepare drawings, data, installation instructions, and to install, make completely operational and test complete motor control centers for the J. Strom Thurmond Powerhouse supplied under this contract. The Contractor shall provide proof of having a minimum of 5 years experience in the installation and commissioning of the style and brand MCC provided to oversee the installation and to perform the commissioning of all equipment installed under this contract by providing a minimum of 3 projects completed along with a listing of the equipment installed, point of contact for each job and the start and end date of the job. The work also includes the following items:

a. Provide detailed engineering design documents for the removal of the existing MCC’s and for the installation and interfacing with the plant motor equipment, control systems, and power distribution systems.

b. Unwire and remove the existing MCC cabinets.

c. Remove and replace all existing power and control cables entering and leaving the

MCC cabinets

1.2. SUBMITTALS

Installation Instructions; GA

The procedure shall include a detailed description of the methods and equipment to be used for each operation, and the sequence of operations.

Equipment Removal Procedure; GA

The procedure shall include a detailed description of the equipment to be removed and of the methods and equipment to be used for each operation, and the sequence of operations.

Installation Plan and Schedule; GA

The plan and schedule should not duplicate information in the installation instructions but should refer to those instructions with specific information on the manner in which work will be prosecuted on site. The procedure shall contain a step-by-step activity listing and a schedule which demonstrates the dependency of one activity on another. Included in the plan and schedule shall be the number of shifts to be worked and their starting and stopping times, crew sizes, and persons on each shift responsible for superintendency and safe clearance. Activities which are hazardous, affect plant operation, or require participation by Government personnel shall be included in the plan and schedule.

Field Test Procedure; GA

A schedule, outline and detailed description of the test methods and equipment to be employed in all field tests, including test values and rejection criteria. The test procedure shall contain schematics showing all external connections to the MCC being tested.

Equipment Installation Drawings; GA

Equipment installation drawings, including materials list and cable and conduit schedule. Within 90 calendar days after date of receipt of signed contract.

Modifications to existing plant equipment and structures; GA

Drawings illustrating any drilling or boring through existing walls or floors, modifications of existing or addition of new concrete mounting pads, and rearrangement of existing plant equipment not being replaced under this contract.

Installation Drawings showing as-built changes; FIO

A complete set of as-built installation drawings with all changes from the original design clearly marked.

2. INSTALLED EQUIPMENT REMOVAL AND NEW EQUIPMENT INSTALLATION

2.1. Schedule

The installation phase of this contract is dependent on the supply and installation of equipment being performed on a separate contract. Therefore installation will not begin immediately after supply phase of this contract is complete and the contractor will be given separate notice to proceed with the installation phase. The contractor shall begin the installation phase within 30 days of the notice to proceed. The installation of motor control centers 1 through 20 will require coordination of generator outages and cannot occur simultaneously. The contractor’s installation plan and schedule submittal will specifically define the dates, relative to the start of the installation phase of the contract, for which these motor control centers will be removed and returned to service.

2.2. Equipment Removal

2.2.1. General

The work included under this section consists of the removal of the existing motor control center equipment, which shall be accomplished in accordance with the Contractor’s approved removal procedure. All materials resulting from the removal work shall become the property of the Contractor, and shall be removed from the site and shall be properly disposed of in accordance with applicable State and Federal regulations. Materials that cannot be removed daily shall be temporarily stored in areas specified and approved by the Contracting Officer.

2.2.2. Equipment To Be Removed

Existing cables which serve equipment to be removed shall be disconnected at both ends and shall be completely removed. Exposed conduit which is part of the existing installation which will not be used for the MCC shall be removed entirely or removed to the embedded part, as applicable. Ends of abandoned embedded conduit shall be plugged flush at the concrete surface with a suitable conduit fitting. The following existing equipment shall be removed:

Motor control center cabinets and contents.

All abandoned and unused power, control, and instrument cables and conduit

2.3. Equipment Installation

2.3.1. General

The Contractor shall furnish all necessary cable, conduit, fittings, and miscellaneous materials for all power and control connections between the new motor control centers and Government motor equipment, control boards, and power distribution boards. The motor control centers shall be installed complete and ready for commercial operation. The contractor shall perform the installation and field testing of the equipment according to requirements and recommendations of the equipment manufacturer. The equipment shall be installed in the locations shown on the approved Contractor design.