05. WT Project Specifications.pdf

WATERTOWN SUBSTATION, STAGE 22

STATION SERVICE

REPLACEMENT PROJECT

Solicitation No. 89503420BWA000019 Spec. No. 20WC135850-957

SECTION C

DESCRIPTION/SPECIFICATIONS

SOUTH DAKOTA

SECTION C

DESCRIPTION/SPECIFICATIONS

WATERTOWN SUBSTATION, STAGE 22

STATION SERVICE REPLACEMENT PROJECT

DIVISION 1 – GENERAL REQUIREMENTS

A. CONTRACT REQUIREMENT:

B. DESCRIPTION OF WORK:

1. THE PRINCIPLE COMPONENTS OF WORK

C. DESCRIPTION OF BIDDING SCHEDULE ITEM:

1. Bidding Schedule item “Mobilization and preparatory work”

D. COMMENCEMENT, PROSECUTION AND COMPLETION OF WORK:

1. SUBMITTAL APPROVAL TIME:

2. OUTAGE RESTRICTIONS:

3. CONSTRUCTION SCHEDULE RESTRICTIONS:

4. PROTECTIVE GROUND LEADS:

5. MAXIMUM AVAILABLE FAULT CURRENT:

6. SAFETY AND HEALTH PROGRAM:

E. CONSTRUCTION SCHEDULE:

1. SUBMITTAL TIME:

2. FORMAT AND DETAIL:

F. MATERIAL:

1. POINTS-OF-DELIVERY:

G. RIGHTS-OF-WAY:

H. GEOLOGIC INVESTIGATIONS:

I. ELECTRIC POWER FOR CONSTRUCTION PURPOSES:

J. WATER FOR CONSTRUCTION PURPOSES:

K. EXPLOSIVES AND BLASTING:

L. BURIED UTILITIES:

M. EMPLOYEE REQUIREMENTS:

N. ELECTRICAL MINIMUM APPROACH DISTANCES:

O. SUBMITTALS AND CORRESPONDENCE:

1. GENERAL:

2. TRANSMITTAL:

3. PHYSICAL SAMPLE SUBMITTALS:

4. SUBMITTAL RESPONSE:

5. APPROVAL TIME:

6. PROJECT PROTOCOL:

DIVISION 2 – SITEWORK

A. DESCRIPTION OF BIDDING SCHEDULE ITEMS:

1. Bidding Schedule item “Miscellaneous sitework”

2. Bidding Schedule item “Demolition”

3. Bidding Schedule does not contain separate items for the following

DIVISION 3 – CONCRETE

A. GENERAL:

1. MATERIAL:

2. TEST FOR POTENTIAL REACTIVITY OF SAND AND COARSE AGGREGATE:

3. REBAR DEVELOPMENT (LD) AND LAP LENGTH:

B. DESCRIPTION OF BIDDING SCHEDULE ITEMS:

1. Bidding Schedule item “Concrete foundations”

2. Bidding Schedule item “Cable trenches”

3. Bidding Schedule item “Concrete pull boxes”

DIVISION 4 – SUBSTATION METALWORK

A. GENERAL:

1. GOVERNMENT-FURNISHED DRAWINGS:

2. MEASUREMENT:

B. DESCRIPTION OF BIDDING SCHEDULE ITEM:

1. Bidding Schedule item “Steel structures, welded (galvanized)”

DIVISION 9 – SUBSTATION - ELECTRICAL

A. GENERAL:

1. Bidding Schedule for Government-furnished items

2. Bidding Schedule for items (not furnished by the Government)

3. Unless otherwise specified, associated support structures

4. Installation and painting of electrical equipment and material

B. DESCRIPTION OF BIDDING SCHEDULE ITEMS:

1. Bidding Schedule item “Combination interrupter switch and fuse disconnects, 14.4-kV

(Government-furnished)”

2. Bidding Schedule item “High Current Limiters, 15.5-kV, 25 A, 80-kA, three-phase”

3. Bidding Schedule item “High Current Limiters, 15.5-kV, 50 A, 120-kA, three-phase”

4. Bidding Schedule item “Free-standing automatic transfer switch, 480V, 1200 amps, three-phase”

5. Bidding Schedule item “13.2-kV-480V Station service transformers”

6. Bidding Schedule item “480-120/240 V Single-phase station service transformers”

7. Bidding Schedule item “480-240/120 V Three-phase station service transformer”

8. Bidding Schedule item “Voltage transformers, 25-kV, single-phase”

9. Bidding Schedule item “Resistor”

10. Bidding Schedule item “1/C-1/0 AWG, 25-kV, insulated copper cable”

11. Bidding Schedule item “Safety Switches”

12. Bidding Schedule item “Outdoor AC distribution switchboard DWA”

13. Bidding Schedule item “Outdoor AC distribution yard panels”

14. Bidding Schedule item “Indoor AC distribution boards (furnish only)”

15. Bidding Schedule item “Lighting Contactors”

16. Bidding Schedule item “Substation Grounding System”

17. Bidding Schedule item “Substation Conduit System”

18. Bidding Schedule item “Substation Bus System”

19. Bidding Schedule item “Associated electrical equipment and material”

20. Bidding Schedule item “Existing outdoor electrical equipment and material”

DIVISION 1 – GENERAL REQUIREMENTS

A. CONTRACT REQUIREMENT:

Construct and complete Watertown Substation, Stage 22, Station Service Replacement Project, South Dakota in accordance with the Construction Contract (Standard Form 1442); the Contract Clauses;

Western Area Power Administration’s (WAPA) Construction Standards, including Standard 1 – General Requirements (September 2016), Standard 2 – Sitework (September 2016), Standard 3 – Concrete (September 2016), Standard 4 – Substation Metalwork and Transmission Line Lattice Structures (September 2016), Standard 5 – Transmission Line Steel Pole Structures (September 2016), Standard 6 – Light Duty Steel Pole Structures (September 2016), Standard 7 – Wood Poles (September 2016), Standard 8 – Glued Laminated Structures (September 2016), Standard 9 – Substation – Electrical (September 2016), Standard 10 – Transmission Line – Electrical (September 2016), Standard 11 – Service Building (September 2016), Standard 12 – Painting (September 2016), Standard 13 – Environmental Quality Protection (September 2016), Standard 14 – Communication Facilities (September 2016), Standard 15 – Drawings (September 2016); Standard Drawings; and these Project Specifications and Drawings.

If a conflict occurs between the Project Specifications and the Construction Standards, the Project Specifications shall govern. The Project Specifications and the Drawings are used to take exceptions or provide additions to the Construction Standards. Some paragraphs in the Construction Standards will not apply to this job.

WAPA’s Construction Standards, Standard Drawings, and Electrical Equipment Standards are available at https://www.wapa.gov/DoingBusiness/SellingToWestern/Pages/what-western-buys.aspx.

WAPA Project Specifications and Construction Standards are explained in Standard 1 – General Requirements, Section 1.1.1, “Standards and Project Specifications”.

B. DESCRIPTION OF WORK:

1. THE PRINCIPLE COMPONENTS OF WORK include the following:

a. Removal and disposal of KY3A tertiary bus, bus cable, conductors, conduit, outdoor panels, lighting unit, bus support structure, fuse (FW3A)/disconnect (WW3A) structure, and associated foundations.

b. Provide 4-inch Conduits from the trench to KV2A and JW2A.

c. Provide station service equipment, 69/115 and 230-kV yard panels, and all associated concrete pads and conduit.

d. Provide combination fuse/disconnect structures, foundations, and equipment for KV2A and KV8A tertiary bus.

e. Provide Combination fuse/disconnect structure, bus and ground fault detection system for

KY3A.

Paragraphs “Description of Bidding Schedule Items” in Divisions – 1, 2, 3, 4 and 9 describe the work to be performed.

The work is located near Watertown South Dakota, as shown on Drawing WT 0015.

Some drawings indicate work that will be performed by WAPA forces. The Contractor shall perform all Stage 22 work, unless the Drawings indicate “BY WAPA”.

https://www.wapa.gov/DoingBusiness/SellingToWestern/Pages/what-western-buys.aspx

C. DESCRIPTION OF BIDDING SCHEDULE ITEM:

1. Bidding Schedule item “Mobilization and preparatory work” includes the following:

a. Performing mobilization and preparatory work in accordance with Sections H and M of the contract clauses.

b. Preparing and submitting a Construction Schedule and furnish a Safety and Health

Program.

c. Complying with Environmental Standards.

d. Complying with DOE order 442.2, “Differing Professional Opinions for Technical Issues Involving Environment, Safety and Health”.

D. COMMENCEMENT, PROSECUTION AND COMPLETION OF WORK: See FAR 52.211-10 in

Section F of the solicitation/contract.

1. SUBMITTAL APPROVAL TIME: Except as otherwise provided for specific submittals, WAPA will require 20-calendar days for review of drawings or data submitted for approval.

2. OUTAGE RESTRICTIONS: In addition to the restrictions listed in Construction Standard 1, the following outage restrictions shall apply:

a. The electrical operation of the transmission lines are under the jurisdiction of WAPA’s Watertown Operations Office. All outage requests by the Contractor shall be subject to the approval of the Contracting Officer’s Representative (COR). Approval or denial of an individual outage request will be based on transmission system electrical loads, system operating configurations and weather conditions at the time the outage is scheduled to begin. At any time because of transmission system electrical loads, system the transmission system operation or reliability, WAPA may deny an outage request or direct the Contractor to return facilities to operating conditions and release the applicable Special Work Permit.

b. Make all outage requests in writing to the COR a minimum of 3-weeks in advance.

c. Meeting the minimum advance notice requirement of 3-weeks does not guarantee an outage will be approved. To improve the chances of an outage being approved, all outages should be submitted with as much advance notice as practicable. Weather conditions and other system conditions such as other scheduled and nonscheduled (forced) outage must be evaluated against an outage request before approval can be granted.

3. CONSTRUCTION SCHEDULE RESTRICTIONS: The following Construction Schedule restrictions shall apply:

a. The Contractor shall not work more than 12-hours per day and no more than 60-hours in one continuous period without approval from the COR.

b. Work at the site shall not commence until March 1, 2021.

4. PROTECTIVE GROUND LEADS: See WAPA Construction Standards, Standard 1 “General Requirements”, Section 1.4.14.3(1).

5. MAXIMUM AVAILABLE FAULT CURRENT: When protective ground leads are required, the protective ground leads shall be sized as defined below and shall meet the requirements of Standard 1 – General Requirements, Section 1.4 “Safety and Health” and the following:

a. The maximum available fault current in the 115-kV area is 14,817 amps and the X/R ratio is 12.7.

b. A minimum of one (1) 1/0, 2/0, or 4/0grounds shall be used in the 115-kV area.

c. The maximum available fault current in the 230-kV area is 13,436 amps and the X/R ratio is 10.5.

d. A minimum of one (1) 1/0, 2/0, or 4/0 grounds shall be used in the 230-kV area.

e. The maximum available fault current in the (KV2A) 13.2-kV area is 23,250 amps and the

X/R ratio is 30.9.

f. A minimum of two (2) 1/0, one (1) 2/0, or one 4/0 grounds shall be used in the (KV2A) 13.2-kV area.

g. The maximum available fault current in the (KV8A) 13.2-kV area is 23,241 amps and the

X/R ratio is 30.4.

h. A minimum of two (2) 1/0, one (1) 2/0, or one 4/0 grounds shall be used in the (KV8A) 13.2-kV area.

i. The maximum available fault current in the (KY3A) 13.2-kV area is 4,009 amps and the X/R ratio is 20.2.

j. A minimum of one (1) 1/0, 2/0, or 4/0 grounds shall be used in the (KY3A) 13.2-kV area.

6. SAFETY AND HEALTH PROGRAM: Prior to the start of field construction operations at the job site, submit a Safety and Health Program. Prior to beginning onsite construction, a preconstruction safety meeting will be conducted with the Contractor’s supervisory personnel, any major subcontractors, and WAPA.

E. CONSTRUCTION SCHEDULE:

1. SUBMITTAL TIME: Prepare and Submit a Construction Schedule to the Contracting Officer (CO) within 10-calendar days after date of Notice to Proceed.

2. FORMAT AND DETAIL: Dates for each item of Government-furnished material shall be provided.

Do not program dates earlier than the estimated delivery dates shown in the “Material” paragraph.

F. MATERIAL: Furnish all material for completing the work, except material furnished by WAPA as listed below:

ITEM

ESTIMATED

WEIGHT

(LBS)

ESTIMATED

DELIVERY

DATE

ESTIMATED

COST

1. (5) Combination interrupter switch and fuse disconnects, 14.4-kV 1,000 lbs ea NST 08-31-2020

NLT 10-01-2020 $19,910.00 ea

NST – No sooner than.

NLT – No later than.

1. POINTS-OF-DELIVERY: Material furnished by WAPA will be delivered to WAPA’s warehouse facility at the Watertown substation. The Contractor shall load, transport, and unload the material to the jobsite. The Contractor shall inspect the equipment and report any damages to the COR.

G. RIGHTS-OF-WAY:

Orient construction methods and equipment to utilize Government-furnished rights-of-way and within Government property lines, or obtain additional temporary access without additional cost to WAPA.

Any additional temporary access acquired by the Contractor shall have prior COR approval. During the contract period, WAPA reserves the right to use Contractor-obtained access.

H. GEOLOGIC INVESTIGATIONS:

The 8000-series geologic logs of subsurface explorations included in the “Drawings” Division constitute the information and records of geologic investigations for the work. Locations of subsurface investigations are shown on the Drawings.

Samples and cores of recovered material were not retained. Bidders may obtain their own samples and perform tests on the material to evaluate properties, which they believe to be significant. WAPA does not guarantee that the geologic information and records show the conditions that will be encountered in performing the work, but only that the geologic information and records show conditions encountered at the particular point and time the information and records were obtained.

The geologic information may not indicate variations, such as those caused by seasonal fluctuations in rainfall and other factors, which may affect the water level. The Contractor shall determine the nature of material to be excavated, the difficulties of making and maintaining required excavations, and doing other work affected by geology and ground water elevations at the worksite.

I. ELECTRIC POWER FOR CONSTRUCTION PURPOSES:

Electric power up to a maximum of approximately 10kVA for construction purposes will be available without cost. Source of supply is located in the receptacles throughout the substation. Power made available by WAPA will be delivered as single-phase, 60Hz, AC, at approximately 120-240 V. The Contractor may furnish power for his operations by other means at no additional cost to WAPA.

Coordinate with the COR for establishing electric power service. Provide necessary transmission lines, distribution circuits, transformers, and other electrical equipment for distributing the power to the places of use. At contract completion, remove the temporary electrical equipment and distribution lines.

J. WATER FOR CONSTRUCTION PURPOSES:

Furnish water for construction purposes. Make arrangements for obtaining the water and provide for conveying the water to the points of use.

K. EXPLOSIVES AND BLASTING:

Explosives shall not be used.

L. BURIED UTILITIES:

Prior to excavation, examine the area and determine the location of buried utilities. Utilities shall be identified with a marker denoting the type of service.

M. EMPLOYEE REQUIREMENTS:

In addition to the requirements listed in WAPA Construction Standard 1.4.3 all employees are restricted from wearing a headset, headphone, or other listening device, other than a hearing aid or instrument for the improvement of defective human hearing, hearing protection worn as the hazard exists, or for communication purposes while on a WAPA jobsite.

N. ELECTRICAL MINIMUM APPROACH DISTANCES:

In addition to the requirements listed in WAPA Construction Standard 1.4.9 equipment other than cranes and derricks, conductive objects, or personnel, shall not be brought closer to energized facilities than the electrical minimum approach distances established by OSHA 1926.958(b), “Materials, Handling, and Storage”. The less stringent equipment clearance distances established by OSHA 1926.960, “Working On or Near Exposed Energized Parts”, Table V-5 and Table V-6, may only be used after the Contractor has completed and submitted WAPA’s Electrical Clearance Variance form and has received the signed form in return from the COR.

O. SUBMITTALS AND CORRESPONDENCE:

1. GENERAL: The Contractor shall furnish submittals via email as specified in the Construction Standards and this Project Specification to the email address listed under the Transmittal section below and with the following requirements:

a. Submittals shall be in standard PDF, Microsoft Word (.doc/.docx), Microsoft Excel

(.xls/.xlsx), or Electronic CAD (.dwg) (AutoCAD 2010 or 2014) formats. All submittals in .dwg format shall also be submitted in .pdf format.

b. All submittals shall include the WAPA Contract number, Specification number, WAPA project title, Bidding Schedule Contract Line Item Number (CLIN) and applicable division number.

c. Multiple CLIN’s on a single submittal are not permitted.

d. A cover transmittal letter in Microsoft Word or PDF format shall be included with each email submittal.

2. TRANSMITTAL: The Contractor shall transmit all submittals to the Construction Office.

Email: UGP-CS-B5600@WAPA.GOV

3. PHYSICAL SAMPLE SUBMITTALS: When physical specimens or digital media are required to be submitted for approval, (i.e. brick samples, roofing material samples, carpeting, CDs, DVDs, etc.) the Contractor shall provide a digital cover letter outlining the physical sample submittal prior to sending the sample (including tracking data when applicable) and shall deliver physical specimens to:

Western Area Power Administration Civil/Structural Design ATTN: 7920, Civil Engineering Manager 12155 W. Alameda Parkway Lakewood, CO 80228-2802

A courtesy copy of the submittal letter shall be emailed to the Construction office at the above address.

mailto:UGP-CS-B5600@WAPA.GOV

4. SUBMITTAL RESPONSE: WAPA will respond to submittals electronically with an “Accepted” or

“Not Accepted” status with comments as appropriate in accordance with the “Commencement, Prosecution, and Completion of Work” paragraph to the email address where the submittals originated.

5. APPROVAL TIME: Approval time for submittals shall be in accordance with the “Commencement, Prosecutions, and Completion of Work” paragraph.

6. PROJECT PROTOCOL:

a. Submittals – Electronic Correspondence:

SUBJECT LINE IN EMAIL -- SUBMITTAL FORMAT

CLIN + Submittal Name – Applicable Division Number or Drawing Number – Project Title – Specification Number – Contract Number Example: 0011 Concrete Mix Design – 3.A.1 – Watertown Substation, Stage 22, Station Service Replacement Project, SD – 20WC135850-957 – 89503420CWA0000XX

b. Payment Requests:

SUBJECT LINE IN EMAIL -- PAYMENT REQUEST FORMAT

Invoice Number – Project Title – Specification Number – Contract Number Example: Invoice 01 – Watertown Substation, Stage 22, Station Service Replacement Project, SD – 20WC135850-957 – 89503420CWA0000XX

c. Certified Payrolls – Prime and Sub-Contractors:

SUBJECT LINE IN EMAIL -- CERTIFIED PAYROLL FORMAT

Certified Payroll (CP) – Contractor Name – Week Ending (WE) – Project Title – Specification Number – Contract Number Example: CP – Bob’s Asphalt Repair – WE 08/13/16 & 08/20/16 – Watertown Substation, Stage 22, Station Service Replacement Project, SD – 20WC135850-957 –

89503420CWA0000XX

d. Request for Information:

SUBJECT LINE IN EMAIL -- REQUEST FOR INFORMATION (RFI) FORMAT

RFI Number – Subject – Project Title – Specification Number – Contract Number Example: RFI 003 – Labeling Info – Watertown Substation, Stage 22, Station Service Replacement Project, SD – 20WC135850-957 – 89503420CWA0000XX

DIVISION 2 – SITEWORK

A. DESCRIPTION OF BIDDING SCHEDULE ITEMS:

1. Bidding Schedule item “Miscellaneous sitework” includes the following:

a. Replacing and protecting existing gravel surfacing.

b. Providing new gravel surfacing as needed due to foundation work.

c. Providing a soil-applied herbicide where gravel surfacing is placed.

2. Bidding Schedule item “Demolition” includes the following:

a. Completely removing and disposing of concrete foundations designated on Existing

Installation Drawings WT 2010, WT 2011and WT 2018.

b. Removing the following structures:

(1) One (1) 12.47-kV Switch and Take-Off Structure (WT 2033).

(2) One (1) Bus Pole Mark 2845-B (WT 2072).

(3) One (1) Tapered Pole Type Lighting Unit (31_1073).

Drawings are included showing typical structure details.

c. Removing and disposing of grounding and conduit as shown on the drawings.

d. The Contractor shall include any credit to the Government for salvage of these items in this bidding schedule item.

3. Bidding Schedule does not contain separate items for the following. Include these items in applicable Bidding Schedule items.

a. Excavations for foundations, structures and trenches.

b. Placing and compacting earth material and backfill.

c. Providing gravel fill under concrete foundations as shown on the Drawings.

d. Disposing of excavated material. Material from excavations not suitable or required for earthwork shall be removed from the substation and access road right-of-way. The Contractor shall make arrangements required for disposal of waste material in an approved landfill.

e. Expansion anchors and adhesive anchors.

DIVISION 3 – CONCRETE

A. GENERAL:

1. MATERIAL:

a. Cement: Type II cement. Types are according to ASTM C 150.

b. Compressive Strength: 4500 psi minimum at 28-days.

c. Water-Cement Ratio: Net water-cement ratio, exclusive of water absorbed by the aggregates, shall not exceed 0.45 by weight.

d. Type A and D water-reducing and retarding admixtures may be used if approved by the COR.

e. Fly Ash: Shall be used in accordance with the “Use of Recovered Material and Biobased Material Products” paragraph of Standard 13. Class F fly ash is required to neutralize severe alkali or ASR reaction in accordance with ASTM C 311 (regarding test data), ASTM C 618 (regarding material), and Standard 3 – Concrete (regarding WAPA-specific requirements). Proposed concrete mix designs shall incorporate fly ash up to a maximum of 20 percent; minimum 28-day compressive strength shall be maintained in mix design.

2. TEST FOR POTENTIAL REACTIVITY OF SAND AND COARSE AGGREGATE: Perform tests for potential reactivity for the sand and coarse aggregate to be used by the Contractor. If the tests determine the aggregate(s) to be unsuitable as a concrete aggregate, a suitable source will be obtained by the Contractor.

3. REBAR DEVELOPMENT (LD) AND LAP LENGTH:

a. Class B lap splices apply unless noted otherwise; refer to Table 3 on Standard Drawing

01 2004-1 General Outline and Reinforcement Notes.

b. Typical closed circular tie lap splice lengths for drilled piers and columns, 4,000 – 4,500 psi normal weight concrete, unless noted otherwise, are 18-inch for No. 3 ties, 24-inch for No.4 ties, and 30-inch for No.5 ties.

B. DESCRIPTION OF BIDDING SCHEDULE ITEMS:

1. Bidding Schedule item “Concrete foundations” includes the following:

a. Earthwork, formwork, reinforcement, material used in concrete, galvanized anchor bolts, curing, finishing, joints and other related work and material needed to complete the concrete construction.

b. Concrete foundations for steel structures.

c. Concrete foundations for station service equipment and yard panels, including aluminum trench covers.

d. Unwatering foundation excavations, if required.

e. Casing auger excavations, if required.

f. Trial augering, if required.

Measurement for quantities for concrete foundations will be made on the basis of concrete quantities shown on Drawing WT 2101. Regardless of the concrete quantities actually placed, payment will be based on the quantities of concrete shown on the Drawing.

2. Bidding Schedule item “Cable trenches” includes providing precast concrete cable trenches, complete with sandfill, polymer modified concrete covers and other accessories.

3. Bidding Schedule item “Concrete pull boxes” includes providing precast pull boxes, complete with gravelfill, covers, pulling hooks, bollards and other accessories, as shown Drawing WT 1713, except for electrical cable.

DIVISION 4 – SUBSTATION METALWORK

A. GENERAL:

1. GOVERNMENT-FURNISHED DRAWINGS: Existing shop drawings for steel structures are not available.

2. MEASUREMENT: Measurement for quantities for Bidding Schedule items “Steel structures, welded (galvanized)”, will be made on the basis of weights calculated in accordance with LRFD, “AISC Code of Standard Practice for Steel Buildings and Bridges”, except that weights for nonrectangular shapes and plates are to be based on actual detailed dimensions.

a. Steel structure weights, calculated as noted above, shall be shown on the

Contractor-furnished final shop drawings and payment will be based thereon. Steel estimated weights are shown on the specifications drawings for the structures requiring approval drawings as noted in the Bidding Schedule items “Steel structures, welded (galvanized)”.

B. DESCRIPTION OF BIDDING SCHEDULE ITEM:

1. Bidding Schedule item “Steel structures, welded (galvanized)” includes providing the following:

a. Two (2) Combination Fuse Disconnect Switch Structures – Type I.

b. One (1) Combination Fuse Disconnect Switch Structure – Type II.

c. One (1) Ground Fault Detection Structure.

d. One (1) Single Switch Operating Platforms – Type I, including grating.

e. Two (2) Double Switch Operating Platforms – Type II, including grating.

f. One (1) Station Service Arrangement Support Frame.

g. One (1) 69/115-kV AC Yard Panels Support Frame.

h. One (1) 230-kV AC Yard Panels Support Frame.

Structures listed above require approval drawings.

The above material including connection bolts, nuts, washers and lock nuts shall be galvanized.

DIVISION 9 – SUBSTATION - ELECTRICAL

A. GENERAL: Electrical equipment and material shall be as specified in Western’s “WAPA ES”

Standard Equipment Specifications, as shown on project drawings and in accordance with NEMA, ANSI, IEEE, ICEA, ASTM, NEC, NESC, UL and Federal specifications and standards as applicable.

Applicable requirements shall be met under the following service conditions:

Ambient Temperatures:

Maximum ......................................................................................... +50°C Maximum 24-Hour Average ............................................................ +30°C Minimum ........................................................................................... -50°C

Elevation:

Above Mean Sea Level ............................................................ 1,820 Feet

*ASCE-7 Wind Load

Minimum Basic Wind Speed ........................................................ 90 MPH Importance Factor .............................................................................. 1.15

*IEEE 693 Seismic Qualification .................................................................... Low

*May include support structure in accordance with STANDARD 9.1.1.2. Wind and seismic loads are nonsimultaneous.

1. Bidding Schedule for Government-furnished items (including associated supporting structures when furnished) require the Contractor to provide:

a. Unless otherwise indicated, unloading and inspecting Government-furnished items.

b. Installing Government-furnished items as shown on drawings.

c. Furnishing equipment and material not furnished by WAPA.

2. Bidding Schedule for items (not furnished by the Government) shall be furnished by the

Contractor and shall include the following:

a. Providing (furnishing and installing) bidding schedule items.

b. Furnishing equipment and material not furnished by WAPA.

c. Installing bidding schedule items as shown on drawings.

3. Unless otherwise specified, associated support structures provided for each electrical equipment rated above 7-kV shall be 102-inches in height and hot-dip galvanized, if made of steel.

Instrument transformers that are seismically qualified shall be 96-inches in height. If tubular steel supports are furnished, they shall be galvanized internally and externally.

4. Installation and painting of electrical equipment and material shall be provided in accordance with

Standards 9 and 12 respectively.

B. DESCRIPTION OF BIDDING SCHEDULE ITEMS:

1. Bidding Schedule item “Combination interrupter switch and fuse disconnects, 14.4-kV (Government-furnished)”: includes installing the Government furnished combination interrupter switch and fuses in accordance with WAPA ES 8.2 Equipment Standard:

DESIGNATION

WW28A-FW28A

WW29A-FW29A

WW34A-FW34A

WW39A-FW39A

WW89A-FW89A

Type

3-pole, single-throw, outdoor, manually group-operated, vertical break, rotating-insulator-type interrupter with single-pole hook-operated, low noise fuses, S&C

Electric Company catalog #135332R4 SM type or equivalent

System Nominal Voltage (kV) 14.4 Rated Maximum Voltage (kV) 17 Basic Impulse Insulation Level (kV) 110 Switch Continuous Current Rating (Amps) 600

Fuse Interrupting Ratings

RMS Symmetrical (Amps) 34,000

Asymmetrical (Amps) 1.6 XRMS Symmetrical Phase Spacing 3-0 Approximate Mounting Height Above Ground 11-0

Mounting position Vertical

Insulator Technical Reference No. 205

Approximate E Rating (3) 20E, (2) 40E

2. Bidding Schedule item “High Current Limiters, 15.5-kV, 25 A, 80-kA, three-phase” includes providing High Current Limiters and a spare three-phase set of HCL fuses in accordance with WAPA ES 8.3 Equipment Standards:

DESIGNATION FW28B, FW89B, FW39B

Continuous Current (A) 25 Rated Maximum Voltage (kV) 15.5 Interrupting Rating (kA) 80

a. High Current Limiters shall be G&W Part No. C51120009B00 (mounting base and fuse) or equal.

b. Supply three (3) 1-phase spare HCL fuses G&W Part No. C51020073C00 or equal.

3. Bidding Schedule item “High Current Limiters, 15.5-kV, 50 A, 120-kA, three-phase” includes providing High Current Limiters and a spare three-phase set of HCL fuses in accordance with WAPA ES 8.3 Equipment Standards:

DESIGNATION FW29B, FW34B

Continuous Current (A) 50 Rated Maximum Voltage (kV) 15.5 Interrupting Rating (kA) 120

a. High Current Limiters shall be G&W Part No. C51120010C00 (mounting base and fuse) or equal.

b. Supply three (3) 1-phase spare HCL fuses G&W Part No. C5102013300 or equal.

4. Bidding Schedule item “Free-standing automatic transfer switch, 480V, 1200 amps, three-phase” includes providing indoor automatic source transfer switch Emerson Network Power ASCO H7ATSB31200NGXV, with accessories 18B/G, 44A, 31Z and 135L or equal as shown on the Drawings:

DESIGNATION ATS

Type Free-standing, self-contained, metal enclosed, 3-phase, 60 Hz

Required Voltage Rating 480 V

Enclosure Type 3RX Outdoor

Transition type Contactor based

Source continuous current rating (amps) 1200

Momentary current 10 cycle Asym, (kA) 65

Operation type Open (break before make)

Poles 4

Switched neutral Yes

a. WAPA ES 2.3.6.6 Remote Supervisory Control and Monitoring is required.

b. The automatic source transfer switch shall have three-phase switching and have automatic, remote and manual operation. The source transfer shall be break before make.

c. Voltage and frequency on both the primary and secondary sources shall be continuously monitored with adjustable pickup and dropout settings.

d. Load side power monitoring shall be provided, to include voltage, current, frequency and power factor, read from an LCD screen ASCO 5210 digital power meter or equal on the

ATS.

e. Transfer switch shall display source availability and switch position indicators.

f. The automatic source transfer switch shall be installed complete and ready for operation.

5. Bidding Schedule item “13.2-kV-480V Station service transformers” includes providing station service transformer in accordance with WAPA ES 2.1 Equipment Standard:

DESIGNATION KW29A

KW34A

Type Pad mounted, 3 phase, 60 Hz, outdoor, self-cooled, FR3* oil filled, Loop Feed, dead front Voltage Rating

13.2-kV delta to 480-V

High-Voltage Taps (percent) ±2.5, ±5.0

Capacity (kVA) 1000

Impedance (minimum) 3.1% Z Number of High-Voltage Bushing Wells 6

Number of Low-Voltage Bushings with NEMA Pads 4

High-Voltage BIL (kV) 95

Low-Voltage BIL (kV) 30

Primary side fuse No

* Envirotemp FR3 or equal

a. Transformers shall be Eaton Cooper Envirotran transformer type or equal.

b. Supply one (1) 25-kV elbow connector tool, Chance Catalog No. C403-0391, or equal.

c. For each transformer KW29A and KW34A supply the following accessories:

(1) High voltage parking stands mounted adjacent to high-voltage bushing wells.

(2) Four (4) 25-kV Class, 200 amp loadbreak terminating elbows (includes one (1) spare).

(3) Six (6) 25-kV Class Bushing well inserts.

(4) Six (6) 25-kV Class Bushing wells.

(5) Three (3) 25-kV Class metal oxide varistor (MOV) surge arresters with mating 200-amp loadbreak elbow interface.

6. Bidding Schedule item “480-120/240 V Single-phase station service transformers” includes providing station service transformers in accordance with WAPA ES 2.1 Equipment Standard:

DESIGNATION

K6 K7 K9

Type Pad mounted, single-phase, outdoor, self-cooled, dry-type

Voltage Rating 480 V to 120/240V

High-Voltage Taps (percent) ±2.5

Capacity (kVA) 100

Impedance (minimum) 0.8

7. Bidding Schedule item “480-240/120 V Three-phase station service transformer” includes providing station service transformer in accordance with WAPA ES 2.1 Equipment Standard:

DESIGNATION K8

Type Pad mounted, three-phase, outdoor, self-cooled, dry-type

Voltage Rating 480 V to 240/120V

High-Voltage Taps (percent) ±2.5

Capacity (kVA) 75

Impedance (minimum) 0.8

8. Bidding Schedule item “Voltage transformers, 25-kV, single-phase” includes providing voltage transformers in accordance with WAPA ES 6.1 Equipment Standard:

DESIGNATION (SINGLE-PHASE) VW3A1, VW3A2, VW3A3

Type Single-phase, 60 Hz, outdoor, dry type, self-cooled

Manufacturer ABB type VOZ-15 or equal

Primary Voltage Rating (L-G/L-L) 14,400/24,940Y

Basic Impulse Level (kV) 150

Number of High Voltage Bushings 2

Special Feature Two secondary windings

Ratio Primary to Secondary 120:1 120:1

ANSI Accuracy Class 0.3W, X, Y, Z

Thermal Burden Rating at 30°C Ambient

(VA)

2,000

Terminal connector wire size 4/0 AWG

Mounting Positon Vertical

* In lieu of Standard 6.1.2.5

Voltage transformers shall have dual secondary windings, or a secondary and a tertiary.

A single tapped secondary is not acceptable. Dual tapped secondaries with 120/200: One (1) each is acceptable. Transformers’ primary voltage will be arranged in a grounded wye configuration.

The transformers, in combination with a resistor, are used for ground fault detection.

9. Bidding Schedule item “Resistor” includes providing a resistor in accordance with WAPA

ES 9.3 Equipment Specifications:

DESIGNATION RW3A

Type

Single phase, 60 Hz, outdoor, furnished in a weatherproof enclosure suitable for bracket mounting

Insulated Rating (V) 208

Resistance (ohms) 24

Amperage rating (minimum) 10

Power rating (minimum) (watts) 2000 Enclosure Weatherproof. One grounding pad and clamp-type terminal for No. 4/0 AWG bare copper cable shall be furnished with enclosure.

DESIGNATION RW3A

Terminal Block Resistor shall be wired to terminal block containing a minimum of six points.

The resistor, in combination with 25-kV voltage transformers, is used for ground fault detection.

10. Bidding Schedule item “1/C-1/0 AWG, 25-kV, insulated copper cable” includes providing

1/0 AWG, 25-kV, insulated copper power cable type MV-105, 100 percent insulation level, Southwire Simpull NL-EPR. Cables shall run from FW34A to KW34A and FW29A to KW29A as shown on drawings. Cable runs are three-phase.

11. Bidding Schedule item “Safety Switches” includes providing 3 AC safety switches as shown on the Drawings. Safety Switches are designated SSA, SSB and SSC. Safety Switch enclosures shall be NEMA type 4X. Safety Switches shall be in accordance with WAPA ES 2.3.4.15 Equipment Standard.

12. Bidding Schedule item “Outdoor AC distribution switchboard DWA” includes providing outdoor pad mounted AC distribution switchboard system DWA as shown on Drawing WT 1600.

Switchboard distribution section shall be Square D I-Line or equal and shall have three (3) flat bus bars stacked and aligned vertically with glass reinforced polyester insulators laminated between phases. The molded polyester insulators shall support and provide phase isolation to the entire length of the bus Distribution cabinet section. The enclosure shall be NEMA 3RX and large enough to house branch circuit breakers and condensation heater as shown on Drawings WT 1600. The distribution board shall be in accordance with WAPA ES 2.3.3, 2.3.4 and 2.3.11 Equipment Standard.

DWA shall include a “ground return” ground fault detection scheme. This shall consist of a main circuit breaker capable of remote trip from an included ground fault sensor located on the neutral ground bond as shown on Drawings WT 1600.

13. Bidding Schedule item “Outdoor AC distribution yard panels” includes furnishing surface mounted outdoor AC distribution board system as shown on Drawing WT 1601 and WT 1602.

The AC distribution boards are designated DWB, DWC, DWD and DWD1. Distribution board enclosures shall be NEMA 4X with a maximum dimension of 24-inches-wide by 60-inches-high and include condensation heaters. The distribution boards shall be in accordance with WAPA ES 2.3.4 and 2.3.11 Equipment Standard. Provide Hoffman enclosure clamp assemblies #AFC412SS or equal in lieu of the standard NEMA 4X door clamps.

14. Bidding Schedule item “Indoor AC distribution boards (furnish only)” includes furnishing surface mounted indoor AC distribution board system as shown on Drawing WT 4016 and WT 6045. The AC distribution boards are designated DHA and NHA. The distribution boards shall be in accordance with WAPA ES 2.3.4 and 2.3.11 Equipment Standard. The Contractor shall provide panels to WAPA for WAPA crews to install.

15. Bidding Schedule item “Lighting Contactors” Lighting contactors shall be furnished and installed as shown on the Drawings and in accordance with WAPA ES 2.3.3.4. Lighting Contactor enclosure shall be 24-inches-wide by 24-inches-high and NEMA 4X. Provide Hoffman enclosure clamp assemblies #AFC412SS or equal in lieu of the standard NEMA 4X door clamps.

16. Bidding Schedule item “Substation Grounding System” Complete the substation grounding system. Unless otherwise specified on drawings, splices, connections and other fittings may be compression type (DMC Power’s Swage, AFL Swage system, or equal. It’s recommended to obtain the necessary tooling from the respective manufacturer.)

17. Bidding Schedule item “Substation Conduit System” Electrical conduit system including embedded and exposed conduit. Conduit entering the cable trench with a 90 degree bend is allowed to be Schedule 40 PVC as show on Standard Drawing 31 1006. All other 90 degree bends shall be rigid metal. A red or yellow polyethylene warning tape shall be installed directly above each conduit run and located 12-inches below finished grade. Providing sand backfill around buried conduits as insulated electrical cables and 2-inch by 8-inch plastic lumber over the sand as shown on Standard Drawing 31 1006. All conduits shall have sealing compound installed at both ends. Informational drawings and data are not required for this item. Provide pull ropes in all conduits.

18. Bidding Schedule item “Substation Bus System” Outdoor strain and jumper buses, rigid buses and overhead ground wire unless otherwise specified on the Drawings, splices, elbows, pad type terminal connectors and other fittings used on rigid or cable buses may be compression type (DMC Power’s Bus & Cable Connectors and Swage System, AFL Swage system, or equal.

If required, tools shall be obtained from respective manufacturers.). Post insulators for new structures shall use industry standard 3, 5, or 7-inch base cap bolt circles in lieu of WAPA Standard 9.3.1.1.3.2 and Drawing 31 1081. Replacement insulators shall match existing bolt circles. Insulators shall be ANSI 70 gray.

19. Bidding Schedule item “Associated electrical equipment and material” includes providing equipment, material and services required to complete the following substation installations as shown on the Drawings:

a. Electrical Testing: Includes providing electrical testing in accordance with Standard 9, paragraph 9.1.2 Acceptance Tests – Method A.

b. Terminal Boxes: Terminal boxes’ internal components arrangements shown on Drawings 31 1085 and 31 1086 are typical and the Contractor shall provide internal components for Option 2 Type A terminal box configuration. Actual internal arrangements will be determined by the COR. Note: On Drawing 31 1085, note 7 should be: “Ground all boxes to the main ground grid with 3 conductor No. 7 bare copper-clad cable. 7 conductor No. 4 bare copper-clad cable may be substituted.” Regardless, the Contractor shall size and provide the ground connector, item 4, to fit the provided grounding conductor in lieu of Burndy ground connector type K2C20B1.

c. Cable Terminators: Cable terminators of the self-supporting type. The cable terminators shall include molded rubber caps, crimp rings, non-tracking terminator housings, stress relief, ground straps, mounting brackets and lugs suitable for connecting to electrical equipment with a NEMA 2-hole pad.

d. Substation Signs: Sign materials shall adhere to Division 13 and as follows:

(1) Phase Identification Signs (31 1000):

(a) One (1) on each phase at both ends of main and transfer buses, at each high voltage circuit terminating structure and on each phase of an instrument transformer or single-phase transformer:

1) Phase A – four (4) required.

2) Phase B – four (4) required.

3) Phase C – four (4) required.

(2) Equipment Identification Signs (31 1000) – Lettering on the signs shall be as shown on Drawing WT 1103.

20. Bidding Schedule item “Existing outdoor electrical equipment and material” includes removal and disposal of existing electrical equipment and material.

a. Material to be removed and disposed of is as follows:

(1) Fuse Disconnect switch designated FW3A.

(2) Disconnect switch designated WW3A.

(3) Underground cable from DYA to FW3A.

(4) Substation conductors and bus work as designated on the drawings.

(5) Substation power cables and conduit as designated on the drawings. Portions of cables in conduit, trench and/or trays shall be removed and disposed of.

(6) The Contractor shall include any credit to the Government for salvage of the equipment and/or materials in this bidding schedule item.

Message from the Administrator

At Western Area Power Administration (WAPA), we show our commitment to safety every day through the actions we take, the training we offer and the work conditions we provide. We expect the same commitment to safety from each of our contractors who provide products or services to WAPA. In performing work for WAPA, all contractors must make the right decisions to ensure that the work environment is as safe as possible.

Our safety program is based on four points:

Safety procedures or common sense must be applied by each

Federal and contract employee. Safety should not be set aside to meet a project schedule or for personal convenience.

Employees and contractors must believe that they have the right and the responsibility to identify and take action to reduce, if not eliminate, hazardous work environments and hazardous work practices.

Managers and supervisors must lead by example and execute their responsibility to ensure each job is accomplished in a safe and healthy way.

Safety is a personal responsibility. Each individual makes the decision on what action to take to accomplish a task.

By integrating these principles into every task we take, together we can ensure WAPA is a safe place to work.

Mark A. Gabriel Administrator and CEO