05. WTO Project Specifications.pdf

WATERTOWN OPERATIONS OFFICE BUILDING

STATION SERVICE UPGRADE

SOUTH DAKOTA

Solicitation No. 89503421BWA000026 Spec. No. 21WC140631-1024

SECTION C

DESCRIPTION/SPECIFICATIONS

SECTION C

DESCRIPTION/SPECIFICATIONS

WATERTOWN OPERATIONS OFFICE BUILDING

STATION SERVICE UPGRADE

DIVISION 1 – GENERAL REQUIREMENTS

A. CONTRACT REQUIREMENT:

B. DESCRIPTION OF WORK:

1. The principal components of work include the following:

C. DESCRIPTION OF BIDDING SCHEDULE ITEM:

1. Bidding Schedule item “Mobilization and preparatory work”

D. COMMENTCEMENT, PROSECUTION AND COMPLETTION OF WORK:

1. SUBMITTAL APPROVAL TIME:

2. OUTAGE RESTRICTIONS:

3. CONSTRUCTION SCHEDULE RESTRICTIONS:

4. OUTAGE AND CONSTRUCTION RESTRICTIONS:

5. MAXIMUM AVAILABLE FAULT CURRENT:

6. SAFETY AND HEALTH PROGRAM:

E. CONSTRUCTION SCHEDULE:

1. SUBMITTAL TIME:

F. MATERIAL:

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. SUBMITTALS AND CORRESPONDENCE:

1. GENERAL:

2. TRANSMITTALS:

3. PHYSICAL SAMPLE SUBMITTALS:

4. SUBMITTAL RESPONSE:

5. APPROVAL TIME:

6. PROJECT PROTOCOL:

DIVISION 2 – SITEWORK

A. DESCRIPTION OF BIDDING SCHEDULE ITEM:

1. Bidding Schedule item “Miscellaneous sitework”

DIVISION 3 – CONCRETE

A. GENERAL:

1. MATERIAL:

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

3. MIX DESIGN:

4. REBAR DEVELOPMENT (LD) AND LAP LENGTH:

B. DESCRIPTION OF BIDDING SCHEDULE ITEM:

1. Bidding Schedule does not contain separate items for “Substation, Building, other General

Structural Concrete, and Building Slabs on Ground”

DIVISION 9 – SUBSTATION – ELECTRICAL

A. GENERAL:

B. DESCRIPTION OF WORK:

1. Bidding Schedule item “Pad-mount transformer; 3-phase, 500-kVA 13.2-kV 480/277 V”: :

2. Bidding Schedule item “480-V metal enclosed switchgear assembly DH3A”

3. Bidding Schedule item “480-V metal enclosed switchgear assembly DH3A commissioning and service plan”

4. Bidding Schedule item “Uninterruptible Power Supply, 110 KVA/110-KW, 480 V”

5. Bidding Schedule item “UPS commissioning and service plan”

6. Bidding Schedule item “UPS Battery System”

7. Bidding Schedule item “UPS Battery System commissioning and service plan”

8. Bidding Schedule item “Static transfer switch”

9. Bidding Schedule item “Static switch commissioning and service plan”

10. Bidding Schedule item “3-way generator and load bank manual transfer switch connection cabinet”

11. Bidding Schedule item “Power distribution unit”

12. Bidding Schedule item “Remote Power Panel”

13. Bidding Schedule item “Power distribution cable assemblies”

14. Bidding Schedule item “Wire cable tray”

15. Bidding Schedule item “AC distribution cabinets”

16. Bidding Schedule item “AC distribution panelboards”

17. Bidding Schedule item “Rack Mounted ATS”

18. Bidding Schedule item “Rack Mounted PDU”

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

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

21. Bidding Schedule item “Switchgear building DH3A”

DIVISION 1 – GENERAL REQUIREMENTS

A. CONTRACT REQUIREMENT:

Construct and complete Watertown Operations Office Building Station Service Upgrade 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 (March 2021), Standard 2 – Sitework (March 2021), Standard 3 – Concrete (March 2021), Standard 4 – Substation Metalwork and Transmission Line Lattice Structures (March 2021), Standard 5 – Transmission Line Steel Pole Structures (March 2021), Standard 6 – Light Duty Steel Pole Structures (March 2021), Standard 7 – Wood Poles (March 2021), Standard 8 – Glued Laminated Structures (March 2021), Standard 9 – Substation – Electrical (March 2021), Standard 10 – Transmission Line – Electrical (March 2021), Standard 11 – Service Building (March 2021), Standard 12 – Painting (March 2021), Standard 13 – Environmental Quality Protection (March 2021), Standard 14 – Communication Facilities (March 2021), Standard 15 – Drawings (March 2021); 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 principal components of work include the following:

a. Removal of 480 V outdoor switchgear designated DH3A.

b. Furnish and install 480 V switchgear DH3A, switchgear building DH3A and associated distribution ac panels and equipment.

c. Removal and replacement of existing 750-kVA transformers with 500kVA transformers designated K1 and K2.

d. Removal of 480 V indoor metal clad switchgear.

e. Removal and replacement of 150-kW 480 V UPS system including batteries.

f. Replacement of existing computer and communications room underfloor critical power system.

g. Replacement of six (6) wall mounted critical power panelboards.

h. Re-conductor and re-termination of existing critical equipment and circuits as shown on the

Drawings.

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

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

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

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 Sections H and M of the contract clauses.

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

Program.

c. Complying with applicable Environmental Standards.

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

D. COMMENTCEMENT, PROSECUTION AND COMPLETTION 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 30-calendar days for review of drawings or data submitted for approval.

2. OUTAGE RESTRICTIONS:

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 (1) continuous period without approval from the COR.

4. OUTAGE AND CONSTRUCTION RESTRICTIONS: In addition to the restrictions listed in

Construction Standard 1, the following restrictions shall apply:

a. The Contractor shall submit a construction sequence plan detailing order of work, demolition and temporary station service cabling. This plan shall be reviewed and approved by the

Contracting Officer’s Representative (COR). Work cannot commence until the plan has been approved.

b. Make all outage requests in writing to the onsite WAPA representative a minimum of

14-days in advance. Meeting the minimum advance notice requirement does not guarantee an outage will be approved. Weather conditions and other system conditions must be evaluated against an outage request before approval can be granted. At any time, WAPA may deny an outage request or direct the Contractor to return facilities to operating conditions and release the applicable Special Work Permit.

c. One (1) existing UPS and associated critical power distribution equipment must remain in place and energized until one (1) new UPS and associated equipment is commissioned and energized.

d. Any temporary station service cables subject to vehicle or pedestrian traffic shall be protected in cable runners or ramps.

e. Existing unit substation DH3A cannot be demolished until the following has been completed:

(1) All existing loads have been cutover to the new switchgear DH3A.

(a) New switchgear DH3A shall only be fed from one (1) source (KV8A) until all loads have been cutover to the new system. Once cutover is complete, the secondary source (KY3A) can be removed from existing DH3A and re-terminated to feed the new system.

(b) MTS 1 must be installed and available as an emergency secondary source for new switchgear DH3A before any critical loads may be cutover to the new system.

f. The existing 480 V switchgear in room 135 (see Drawing 1650) cannot be de-energized and removed until the following has been completed:

(1) Panelboard ELH1A must be installed and energized (from new switchgear DH3A).

(2) Panelboard ELH2A must be re-located adjacent to ELH3A.

(3) Panelboards ELH2A, ELH3A, ELH4A, LH3B and ELH5A (formally known as DHUA) must be cutover to ELH1A.

(4) A temporary cable must be installed to re-feed the maintenance bypass switchgear from the generator room Automatic Transfer Switch (ATS). Critical panels DHUB, DHUC, DHUD, DHUE, DHUF, DHUG, DHUH and DHUI will be on UPS power during the installation of this cable. This cable must be installed and energized within 2-hours after switchgear de-energization to avoid depletion of the UPS batteries and disruption of the critical bus. See Drawing T1650 for temporary cable details.

g. UPS 1 and UPS 1 sidecar in room 135 cannot be de-energized and removed until the following has been completed:

(1) A temporary cable must be installed on the load side of UPS 2 to UPS IDC cabinet as shown on Drawing T1650. UPS 1 and UPS 2 may be isolated and bypassed by opening CB1-A, CB1-B and CB3 in the maintenance bypass switchgear. Note that this bypass will feed the critical bus with unfiltered power. The Contractor shall limit the duration of UPS maintenance bypass as much as practical.

h. Existing Panelboards DHUB, DHUC, DHUD, DHUE, DHUF and DHUG cannot be de-energized and removed until the following has been completed:

(1) PDU-1, Static Transfer Switch, Panelboards DHC-1, DHA-1 thru DHA-4 (RPP-A), DHUA, DHUB, DHUC and DHUD have been installed and energized.

(2) New cabinet power whips and associated outlets have been installed in Computer Room 126 and Communications Room 127. At least one (1) feed for all dual cord equipment in both rooms must be cutover to new station service equipment.

(3) WAPA has confirmed that all critical single cord equipment fed from the above existing panelboards has been cutover behind a Contractor furnished rack mounted ATS and power distribution unit (PDU) with one (1) feed from new station service system. See Division 9 for equipment details.

(4) All critical loads have been identified in Dispatch Room 155 and an outage has been granted to re-terminate and extend all room 155 critical loads into new panelboards DHUB and DHUC. See existing installation Drawing 3170-2 and new Drawing 3170-2 for details. This outage shall be limited to no more than 2-weeks.

(a) Panelboard DHUF must be left energized until all loads from DHUB, DHUD, DHUE and DHUG have been cutover and installed into the panelboards.

i. Outages for the following panels and non-essential loads shall be limited to no more than 6-hours and must occur outside business hours (Monday-Friday, 0600-1800).

(1) Operations Office Building Main Distribution Panel LH3DA.

(2) West Office Addition Main Distribution Panel.

j. Outages for the following panels with essential loads shall be limited to no more than

4-hours or auxiliary cooling provisions in place if longer outages are needed.

(1) Building HVAC panel ELH4A.

(a) The ambient temperature in UPS Room 135 and Communications Room 127 must be monitored during this outage and is not allowed to exceed 80-degrees Fahrenheit. Circulation fans or auxiliary cooling provisions may be required to keep these rooms within temperature requirements during the ELH4A outage.

(2) Computer Room 126 HVAC panel ELH5A (formally DHUA).

(a) The ambient temperature in Computer Room 127 must be monitored during this outage and is not allowed to exceed 80-degrees Fahrenheit. Circulation fans or auxiliary cooling provisions may be required to keep this room within temperature requirements during the ELH5A outage.

(3) Dispatch HVAC panel LH3B.

(a) The ambient temperature in the Dispatch room is not allowed to exceed

80-degrees Fahrenheit. Circulation fans or auxiliary cooling provisions may be required to keep this room within temperature requirements during the LH3B outage.

5. MAXIMUM AVAILABLE FAULT CURRENT: 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 existing maximum available fault current in the 13.2-kV KV8A source area is

23,240-amps and the X/R ratio is 30.4. There is no change to the fault current or X/R ratio upon completion of construction.

b. A minimum of one (1) (1/0) grounds shall be used in the 13.2-kV KV8A source area.

c. The existing maximum available fault current in the 13.2-kV KY3A source area is

4,000-amps and the X/R ratio is 20.2. There is no change to the fault current or X/R ratio upon completion of construction.

d. A minimum of one (1) (1/0) grounds shall be used in the 13.2-kV KY3A source 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.

F. MATERIAL: Furnish all material for completing the work.

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. WAPA reserves the right to use Contractor-obtained access.

H. GEOLOGIC INVESTIGATIONS:

Geologic information has not been obtained for this project, and none is known to exist. The Contractor shall determine the nature of the 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 10 kVA 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, 60 Hz, AC at approximately 120-240V.

The Contractor may furnish power for his operations by other means at no additional cost to WAPA.

If needed, make arrangements and provide all electric power for construction purposes. Provide necessary transmission lines, distribution circuits, transformers, and other electrical equipment for distributing the power to the places of use. At contract completion, remove 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. 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. TRANSMITTALS:

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

b. The Contractor shall transmit all inquiries regarding contract changes or modifications to:

Email: dittmer@wapa.gov or richter@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:

Email: UGP-CS-B5600@WAPA.GOV mailto:dittmer@wapa.gov mailto:richter@wapa.gov mailto:UGP-CS-B5600@WAPA.GOV

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.

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 Operations Office Building, Station Service Upgrade, SD--21WC140631-1024 – 89503421CWA0000XX

b. Payment Requests:

SUBJECT LINE IN EMAIL -- PAYMENT REQUEST FORMAT

Invoice Number – Project Title – Specification Number – Contract Number Example: Invoice 01 – Watertown Operations Office Building, Station Service Upgrade, SD--

21WC140631-1024 – 89503421CWA0000XX

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 Operations Office Building, Station Service Upgrade, SD--21WC140631-1024 – 89503421CWA0000XX

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 Operations Office Building, Station Service Upgrade, SD--21WC140631-1024 – 89503421CWA0000XX

TABLE 1 – SUBMITTALS

Specifications

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Division 1 Construction sequence plan ● ● Division 9 Pad mount transformers K1 and K2 ● ● Division 9 Switchgear assembly DH3A ● ● ● ● ● ● ● ● Division 9 Coordination study ● Division 9 Arc Flash study ●

Division 9 Uninterruptible power supply (UPS- 1 and UPS-2) ● ● ● ● ● ● ●

Division 9 UPS Battery System ● ● ● ● ● ● ● Division 9 Static transfer switch ● ● ● ● ● ●

Division 9 3-way generator transfer switch

MTS1 ● ● ●

Division 9 Power Distribution Unit ● ● ● Division 9 Remote Power Panel ● ● ●

Division 9 Power Distribution Cable Assemblies ●

Division 9 Wire Cable Tray ● ● Division 9 AC Distribution Cabinets ● ● ● Division 9 AC Distribution Panelboards ● ● ● Division 9 Rack Mounted ATS ● ● Division 9 Rack Mounted PDU ● ● Division 9 Signs ●

Division 9 and

WTO 4040-

series drawings

Switchgear building DH3A including shop drawings for building structure, landing, electrical and mechanical equipment

DIVISION 2 – SITEWORK

A. DESCRIPTION OF BIDDING SCHEDULE ITEM:

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

a. Excavations for foundations, structures and trenches.

b. Placing and compacting earth material and backfill.

c. Providing sand backfill around buried insulated electrical cables and conduit and 2-inch by 8-inch lumber over the sand, except that lumber protection will not be required in trenches containing insulated lighting cables only.

d. 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 in conjunction with Class F fly ash. Types are according to ASTM C 150.

2. TEST FOR POTENTIAL REACTIVITY OF SAND AND COARSE AGGREGATE: All fine and coarse aggregates shall be tested in accordance with Standard 3. If the tests determine the aggregate(s) to be unsuitable as a concrete aggregate, a suitable source will be obtained by the Contractor.

a. Acceptance criteria specified in Standard 3 are based on 14-day readings after the zero reading.

3. MIX DESIGN: Provide a performance based concrete mix design in accordance with ACI 211.1 and Table 3.1 below.

a. Net water-cementitious materials ratio (w/c) is maximum, by weight. Cementitious material weight is portland cement plus supplementary cementitious material.

b. Air Entrainment: Percent air by volume of concrete as discharge at point of placement.

TABLE 3.1

Description f’c (psi) Max w/c Nominal Maximum

Size Aggregate

(NMSA)

Slump

(INS)

Air Content

Substation, Building and other General Structural Concrete

4500 at 28-days

0.45 [Note 1, include for high sulfate exposure]

[No. 467, No. 57, No. 67, or other designer specified] 2 – 5 4 - 7

Building Slabs on Ground In accordance with Standard Drawing 01 2006-1

Mix designs shall meet the performance based design criteria above and Standard 3.

4. 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. DESCRIPTION OF BIDDING SCHEDULE ITEM:

1. Bidding Schedule does not contain separate items for “Substation, Building, other General Structural Concrete, and Building Slabs on Ground”. The cost of this work in compliance with requirements of Division 3 and Construction Standard 3 shall be included in the applicable bidding schedule items.

DIVISION 9 – SUBSTATION – ELECTRICAL

A. GENERAL: Electrical equipment and material shall be as specified in WAPA’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 ........................................................ 100-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.

B. DESCRIPTION OF WORK:

1. Bidding Schedule item “Pad-mount transformer; 3-phase, 500-kVA 13.2-kV 480/277 V”:

includes providing station service transformers, including concrete pads, in accordance with WAPA ES 2.1 Equipment Standards:

DESIGNATION K1, K2

Type

Pad-mount, 3-phase.

60 Hz, outdoor, self-cooled, oil filled, loop feed, dead front

Voltage Rating (kV) 13.2-kV DELTA to 480/277 grounded WYE

Rating (KVA) 500

High Voltage Taps (percent) ± 2.5, ± 5

Impedance %Z (minimum) 3.5 Number of high voltage bushing wells 6

Number of low voltage bushing wells 3

High-voltage BIL (KV) 125

Low-voltage BIL (kV) 30

a. Each transformer shall be qualified to meet the service conditions specified in paragraph A.

b. Accessories for each transformer shall include the following:

(1) Six (6) parking stands.

(2) Six (6) bushing protective caps.

(3) Six (6) 25-kV bushing well inserts.

(4) Three (3) 25-kV class metal oxide varistor (MOV) surge arresters with mating 200-amp load break elbow interface.

2. Bidding Schedule item “480-V metal enclosed switchgear assembly DH3A” includes providing a low voltage switchgear assembly with controller; Eaton Magnum DS catalog/reference number SLEA0915X7K1, or equal, with the following features:

DESIGNATION DH3A

Voltage Rating (maximum) 600 V

Service Voltage 480/277 WYE, 4-wire 60 HZ

Short Circuit Rating 65kA

Bus Rating (continuous) 800 Amps

Bus Plating Silver

Enclosure Type NEMA 1 Indoor, dead front

a. Switchgear shall be factory assembled and tested and comply with applicable industry standards. All power circuit breakers and assemblies shall be produced by a single manufacturer.

b. Stationary Structure:

(1) Each column of the stationary assembly shall be a self-contained housing with four

(4) individual breaker or instrument compartments with a rear compartment for the buses and outgoing cables. Each rear compartment shall have a bolted cover that aligns with a weatherproof maintenance door from the outside of the switchgear building.

(2) Each circuit breaker compartment shall be equipped with primary and secondary contacts, draw-out extension rails and a formed steel door supported on concealed hinges with removable pins. Access to the integral circuit breaker control panel, including the trip unit, shall be provided without the need to open the breaker cabinet door.

(3) Each rear compartment of the switchgear shall include an IR window located at each circuit breaker for thermal monitoring of cable connections. This window shall be accessible after opening the weatherproof maintenance doors of the switchgear building.

(4) See Drawing WTO 1610 for stationary structure dimensions and equipment location.

c. Buses and Connections:

(1) Each breaker circuit shall include the necessary 3-phase copper bus and connections between the source bus and one (1) set of circuit breaker studs. NEMA 2-hole cable lugs, attached to silver-plated copper extensions for the outgoing cables, shall be provided on the other set of circuit breaker studs. These cable lugs shall be capable of landing a minimum of four (4) conductors per phase and a 4/0 ground.

(2) A neutral bus shall be provided, rated for 800-amps continuous current. There shall be provisions to bond the neutral bus to the ground bus within the switchgear structure.

(3) A ground bus shall be provided. There shall be provisions to ground each structure column to the ground bus as well as 4/0 bare copper cable jumpers to the ground grid outside the switchgear building.

(4) Terminal blocks with integral-type barriers shall be provided for circuit breaker secondary circuits. The terminal blocks shall be front accessible through a hinged access panel above each circuit breaker.

d. Circuit Breaker Lifter:

(1) A switchgear circuit breaker lifter shall be provided, rail mounted, of traveling type and capable of lifting any rack out circuit breaker within the switchgear.

e. Circuit Breakers 52-A, 52-B, 52-G, 52-T1 and 52-T2:

(1) Eaton Magnum DS MDN-608, or equal, operating on the DE-ION arc interrupting principle. Primary contacts shall have an easily accessible wear indicator to indicate main contact erosion. Breaker closing time shall be no more than three (3) cycles.

Each breaker shall have three (3) windows in the front cover to offer clear indication of trip and close electrical accessories mounted in the breaker.

(2) Breakers shall be rated for 800-amps continuous with adjustable trip settings.

(3) Trip Unit:

(a) Digitrip 1150, or equal, microprocessor-based true rms sensing trip device with the following trip characteristics.

1) Long, short, instantaneous and ground fault adjustable trip functions.

(b) Time-current characteristics shall be field adjustable.

(c) Each breaker trip unit shall include an Arc Flash reduction system/maintenance mode.

1) This mode shall be enabled locally or remotely with indication.

(4) LED breaker indication lights shall be provided to indicate the following breaker conditions: Breaker tripped, breaker open, breaker closed, local control and Arc flash reduction/maintenance mode engaged.

(5) A local control switch shall be provided to engage Arc flash reduction/maintenance

(6) A local control switch shall be provided to toggle local and remote control of the corresponding circuit breaker.

(7) Breaker operating mechanism shall be stored energy type, electrically and mechanically trip-free.

f. Circuit Breakers 1-8DZB:

(1) Magnum DS MDN-608, or equal, operating on the DE-ION arc interrupting principle.

Primary contacts shall have an easily accessible wear indicator to indicate main contact erosion. Breaker closing time shall be no more than three (3) cycles. Each breaker shall have three (3) windows in the front cover to offer clear indication of trip and close electrical accessories mounted in the breaker.

(2) IR windows.

(3) Breakers shall be rated for 800-amps continuous with adjustable trip settings.

(4) Trip Unit:

(a) Digitrip 1150, or equal, microprocessor-based true rms sensing trip device with the following trip characteristics.

1) Long, short and instantaneous fault adjustable trip functions.

(b) Time-current characteristics shall be field adjustable.

(c) Each breaker trip unit shall include an Arc Flash reduction system/maintenance

1) This mode shall be enabled locally or remotely with indication.

(5) LED breaker indication lights shall be provided to indicate the following breaker conditions: Breaker tripped, breaker open, breaker closed, local control and Arc flash reduction/maintenance mode engaged.

(6) A local control switch shall be provided to engage Arc flash reduction/maintenance

(7) A local control switch shall be provided to toggle local and remote control of the corresponding circuit breaker.

(8) Breaker operating mechanism shall be stored energy type, electrically and mechanically trip-free.

g. Metering Compartments:

(1) Metering compartments shall be installed on the source side of breakers 52-A and 52-B. Each meter device shall be an Eaton PXM 1000, or equal, and have the ability to ready voltage, current, power factor and frequency on each incoming bus and relay that information to the PLC controller and HMI interface.

h. Coordination Study:

(1) The Contractor shall coordinate thermal and magnetic tripping for all DH3A breakers.

A written report of the coordination study and breakers settings shall be provided to

WAPA.

i. Arc Flash Requirement and Study:

(1) The Contactor shall provide a written arc flash study to WAPA. The arc exposure level allowed downstream of breakers 52-A and 52-B shall be no greater than 8-cal/cm2 when the corresponding breaker’s arc flash reduction maintenance mode is engaged.

j. Switchgear HMI Dashboard System and PLC Controller:

(1) This section includes the supply and installation of a PLC controller and Dashboard system for the DH3A switchgear line up as described in this specification. The Dashboard system is defined to include, but not to be limited to, remote devices for metering, monitoring, control and protection, intercommunication wiring and ancillary equipment.

(2) The PLC HMI interface shall be installed in an accessible location (eye level to the center of the interface screen) on the switchgear.

(3) The PLC controller with user dashboard interface system shall be configured as an M-T-G-T-M system with automatic changeover, generator startup and breaker shunt trip/load shedding capability.

(4) The PLC controller shall have the following operating states.

(a) Normal:

1) Breakers 52-A, 52-B, 1-8DH3A in closed position.

2) Breakers 52-G, 52-T1 and 52-T2 in open position.

3) At no time shall breakers 52-G, 52-T1 and 52-A or 52-G, 52-T2 and 52-B ever be allowed in closed position together to avoid closing in an out of sync source with the generator source.

(b) Loss of power or fault from K1:

1) Breakers 52-B, 52-T1, 52-T2, 1-8DH3A in closed position.

2) Breakers 52-G and 52-A in open position.

(c) Loss of power or fault from K2:

1) Breakers 52-A, 52-T1, 52-T2, 1-8DH3A in closed position.

2) Breakers 52-G and 52-B in open position.

(d) Loss of power or fault from K1 and K2:

1) Breakers 52-T1, 52-T2, 52-G, 3,5,7,4,6,8 and 8DH3A in closed position.

2) Breakers 52-A, 52-B, 1DH3A and 2DH3A in open position.

3) Generator start signal activated for onsite generator.

(e) Main bus fault between 52-A and 52T1:

1) Breakers 52-B, 52-T2, 1-8DH3A in closed position.

2) Breakers 52-A and 52-T1 in open position.

(f) Main bus fault between 52-B and 52T2:

1) Breakers 52-A, 52-T1, 1-8DH3A in closed position.

2) Breakers 52-B and 52-T2 in open position.

(g) Main bus fault between 52-T1 and 52T2:

1) Breakers 52-A, 52-B, 1-8DH3A in closed position.

2) Breakers 52-T1, 52-G and 52-T2 in open position.

(h) Communication:

1) The PLC switchgear controller shall include capability of industry standard

ModBus RS 485 RTU protocol for remote monitoring and control.

k. Switchgear factory assembly and testing:

(1) The switchgear shall be completely assembled, wired, adjusted and tested at the factory before shipment to the building supplier. After assembly, the complete switchgear control and instrumentation circuits shall be tested for operation under simulated service conditions to ensure the accuracy of the wiring and the functioning of the equipment. This testing shall be performed in the presence of a government inspector. The switchgear shall not be shipped until all tests have been performed to the satisfaction of the government.

(2) After reassembly and installation within the switchgear building, the complete switchgear control and instrumentation circuits shall be tested for operation under simulated service conditions to ensure the accuracy of the wiring and the functioning of the equipment.

3. Bidding Schedule item “480 V metal enclosed switchgear assembly DH3A commissioning and service plan” includes:

a. Commissioning and startup of switchgear DH3A.

b. 8-hours of onsite training for WAPA maintenance personnel while switchgear is commissioned by factory representatives.

c. A 5-year 24/7 maintenance, parts and labor and warranty coverage plan to include 4-hour or less response time for the switchgear, controller system and all switchgear auxiliary equipment performed by a factory authorized technician.

4. Bidding Schedule item “Uninterruptible Power Supply, 110 KVA/110-KW, 480 V” includes providing Eaton Power Xpert 93PM UPS Module quote number: DNIP0527X1K1, or equal:

DESIGNATION UPS-1, UPS-2

Type Pad-mount, continuous duty, 3-phase, solid state, online double conversion, 60 Hz

Input 480 VAC, 3-phase, 3-wire, 60 Hz

Output 480 VAC, 3-phase, 3-wire, 60 Hz

Frame 200 KW

Rating 110 KVA/110 KW

Rectifier/Inverter PWM with IGBT switching

DESIGNATION UPS-1, UPS-2

AC input to UPS Bypass (Static Switch) Integrated

Cable Entry Top

Communication Card Modbus RS 485 RTU

Battery Configuration / Type Lithium

Short Circuit Rating 35 kA

Maintenance Bypass Sidecar Yes, 3-Breaker Bypass

a. Each UPS module shall operate independently or in parallel with each other to provide power conditioning, back-up and distribution for critical electrical loads in an existing low-voltage electrical system.

b. UPS modes of operation. Each UPS shall operate as an on-line, fully automatic system in the following modes.

(1) Standard: Utilizing commercial AC power, the critical load shall be continuously supplied by the Inverter. The Inverter shall power the load while regulating both voltage and frequency. The rectifier shall derive power from the commercial AC source and shall supply DC power to the Inverter. Simultaneously, the battery charger shall charge the battery system.

(2) Battery: Upon failure of the commercial AC power, the critical load shall continue to be supplied by the Inverter, which shall obtain power from the batteries without any operator intervention. There shall be no interruption to the critical load upon failure or restoration of the commercial AC source.

(3) Recharge: Upon restoration of the AC source, the charger shall recharge the batteries and simultaneously the rectifier shall provide power to the Inverter. This shall be an automatic function and shall cause no interruption to the critical load.

(4) Bypass: If the UPS must be taken out of the online mode for overload, load fault or internal failures, the internal static bypass switch shall automatically transfer the critical load to commercial AC power. Return from bypass mode to normal mode of operation shall be automatic. A no-break transfer to and from bypass mode shall be capable of being initiated manually from the front panel.

(5) Energy Saver System Mode (ESS): The UPS shall continuously monitor the voltage and frequency of the bypass source. When the source parameters are within acceptable limits, the UPS shall utilize a minimal/optimal combination of its internal subsystems to ensure acceptable power is always delivered to the critical load, at a system efficiency of 99-percent or greater, over the range of 10-percent to 100-percent load. This mode shall automatically, without user intervention, provide maximum power conditioning any time bypass source variation levels exceed preset, adjustable limits. The ESS mode shall be able to distinguish between upstream (utility) faults and react appropriately to protect and support the critical load, without interruption.

c. Rectifier/Charger:

(1) Each rectifier/charger shall convert incoming AC power to regulated DC output for supplying the inverter and for charging the battery. The rectifier/charger shall be a high-frequency 3-level converter design, using Insulated Gate Bi-polar Transistors (IGBTs).

(2) The rectifier shall feature protection circuitry that prevents the IGBTs from sourcing current in excess of their published ratings.

(3) The rectifier shall be capable of operating from a high impedance grounded transformer.

(4) Rectifier operating input voltage range shall be +10-percent, -15-percent of nominal without battery discharge.

(5) Input frequency range shall be 45-65 Hz.

d. Inverter:

(1) Each inverter shall feature an IGBT 3-level pulse-width-modulation (PWM) design with high speed switching.

(2) The inverter shall be capable of providing the specified quality output power while operating from any DC source voltage (rectifier or battery) within the specified DC operating range.

(3) Steady state voltage regulation shall be within +/- 10-percent from nominal output voltage.

e. Integrated System Bypass Module with Static Bypass:

(1) The bypass shall serve as an alternative source of power for the critical load when an abnormal condition prevents operation in normal mode. The bypass shall consist of a fully rated, continuous duty, naturally commutated static switch for high-speed transfers.

(2) Transfers to bypass shall be automatically initiated for the following conditions:

(a) Output overload period expired.

(b) Critical bus voltage out of limits.

(c) Internal over temperature period expired.

(d) Total battery discharge.

(e) UPS failure.

(3) Uninterrupted automatic re-transfer shall take place whenever the Inverter is capable of assuming the critical load.

(4) Uninterrupted automatic re-transfers shall be inhibited for the following conditions.

(a) When transfer to bypass is activated manually or remotely.

(b) In the event of multiple transfers/re-transfer operations the control circuitry shall limit “cycling” to three (3) operations in any 10-minute period. The fourth transfer shall lock the critical load on the bypass source.

(c) UPS failure.

(5) All transfers to bypass shall be inhibited for the following conditions:

(a) Bypass voltage out of limits (+/- 10-percent of nominal).

(b) Bypass frequency out of limits (+/- 3 Hz, adjustable, factory set).

(c) Bypass out of synchronization.

(d) Bypass phase rotation/installation error.

(6) The static transfer time shall complete in less than 4-ms.

f. Communication:

(1) The UPS shall include a communication card capable of industry standard ModBus

RS 485 RTU protocol for remote monitoring and control.

g. UPS Maintenance Bypass Sidecar

(1) Each UPS shall include a maintenance bypass sidecar complete with three

(3) breakers. Each breaker shall be mechanically interlocked to prevent damage or backfeeding to the UPS system.

(2) Breakers shall be labeled, Bypass Input Breaker, Maintenance Bypass Breaker and

Maintenance Isolation Breaker.

(3) Breakers shall be capable of landing 1/0 AWG conductors.

(4) The maintenance bypass sidecar shall be capable of transmitting breaker position status to the associated UPS allowing it to determine that it have been bypassed.

h. UPS factory assembly and testing:

(1) Each UPS shall be completely assembled, wired, adjusted and tested at the factory before shipment. After assembly, the complete UPS control and instrumentation circuits shall be tested for operation under simulated service conditions to ensure the accuracy of the wiring and the functioning of the equipment. This test report shall be sent to the government. Each UPS shall not be shipped until test reports have been approved by the government.

5. Bidding Schedule item “UPS commissioning and service plan” includes:

a. Commissioning and startup of UPS-1 and UPS-2.

b. 8-hours of onsite training for WAPA maintenance personnel while UPS modules are

c. A 5-year 24/7 maintenance, parts and labor and warranty coverage plan to include 4-hour or less response time for the UPS modules performed by a factory authorized technician.

6. Bidding Schedule item “UPS Battery System” includes providing Eaton Samsung 93PM

Lithium Ion Battery system model 128S, DCCG-0819-0872-BMO or equal:

DESIGNATION BAT-1, BAT-2

System Type 128S

Battery Type Lithium 8S Module

Nominal Voltage 486 VDC

3.8 V/cell

Battery Management System Yes

Switching Mode Power Supply 3-phase, 480V, Type A

DESIGNATION BAT-1, BAT-2

Runtime 171 minutes @ 80kW per string

Access Type Front

Operating temperature 64 to 82 degrees F

Cable Routing Top Mount Raceway

a. General:

(1) Upon delivery, battery system must be stored in a dust free location with ambient temperature level of 64-82-degrees Fahrenheit and maximum 60-percent RH until installation.

b. System Components:

(1) Battery cabinet containing battery modules comprised of lithium-ion battery cells.

(2) Battery management system (BMS), each cabinet shall house a rack BMS with internal communication capabilities. In each battery string, one (1) of the cabinets will house a master ‘system BMS’ for system level and external communications to the UPS system.

(3) Switchgear module, for main DC power terminations, protection circuit breaker

(MCCB) and fusing, internal to the cabinet.

c. Battery System Modes of Operation: The Battery Module shall operate as a constantly connected, fully automatic system in the following modes:

(1) Normal: The battery system shall be connected to the DC circuit in the UPS. The

BMS shall monitor voltage, current and temperature at all times.

(2) Discharge: Upon failure of AC power, the critical load shall continue to be supplied by the UPS Inverter, which shall obtain power from the batteries without any operator intervention. The battery system shall monitor DC discharge current and terminate the discharge [disconnect] if current or temperature limits are exceeded. There shall be no interruption to the critical load upon failure or restoration of the AC source.

(3) Recharge: Upon restoration of the AC source, the UPS Charger shall recharge the batteries and simultaneously the UPS Rectifier shall provide power to the Inverter.

This shall be an automatic function and shall cause no interruption to the critical load.

Battery recharge current shall be limited by the UPS and monitored by the battery system to disconnect the string if protection limits are exceeded.

d. Communication:

(1) Each Battery System shall include a communication card capable of industry standard

ModBus RS 485 RTU protocol for remote monitoring and control.

7. Bidding Schedule item “UPS Battery System commissioning and service plan” includes:

a. Commissioning and startup of BAT-1 and BAT-2.

b. 8-hours of onsite training for WAPA maintenance personnel while Battery Systems are

c. A 5-year 24/7 maintenance, parts and labor and warranty corrective coverage plan to include 4-hour or less response time for the Battery System performed by a factory authorized technician.

d. Battery System service maintenance plan to include annual preventative maintenance visit(s) and replacement coverage.

8. Bidding Schedule item “Static transfer switch” includes providing an Cyberex Superswitch 4 ,or equal, static transfer switch with the following features.

DESIGNATION STS

Type Pad-mount, 3-phase, 60 Hz

Input 208 VAC, 3-phase, 4-wire, 60 Hz

Output 208 VAC, 3-phase, 4-wire, 60 Hz

Access Type Front

Poles 4

Rating 400A

Short Circuit Rating 100kA

Cable Entry Top

Maintenance Bypass Yes (Both Sources)

Maximum transfer time 4.17 ms

a. General:

(1) The Static transfer switch (STS) shall be a solid state, dual position switch designed to connect a critical 3-phase load to one (1) of the two (2) separate sources of 3-phase power.

(2) All active electronic devices shall be solid state.

(3) All silicon-controlled rectifiers (SCRs) shall be hockey puck type.

(4) All STS breakers and SCRs shall be rated to carry 100-percent load continuous current.

(5) One (1) power source shall be the normal source, and when it is within normal limits, it shall supply AC power to the critical loads. The other shall be the alternate source and shall be immediately available for use in the event the normal source exceeds its pre-set limits so that the critical load does not have an operational interruption.

b. Transfer Operation:

(1) Upon loss of the primary source the unit shall automatically transfer the load to the alternate source by turning off the primary source SCRs and turning on the alternate source SCRs in a sequence and timing that allows a total combined sense and transfer time of less than one quarter cycle (4.17ms). During the transfer operation there shall be no neutral voltage shift of more than two (2) forward biased SCR voltage drops if the two (2) sources are not within the allowable phase window.

(2) The STS shall not be a make before break type that connects the two (2) sources to each other, regardless of duration. If one (1) source is shorting upstream causing an under voltage condition on that source, then the switch shall sense the UV condition and transfer to the alternate source.

(3) The alternate power source shall be monitored continuously to possibly inhibit transfer before turning on the alternate side SCRs. If the alternate power source is itself outside the pre-set voltage and phase angle limits, then the transfer shall be inhibited.

Indication on the transfer control panel shall be provided to indicate transfer inhibit status.

(4) The static transfer switch shall be able to operate as a manual switch. A mode selection of “Auto” and “Manual” transfer options shall be from the control panel. In manual position the operator shall be able to operate the switch as a manual unit.

The unit shall remain in manual mode until such time that the automatic mode is selected.

(5) Manual mode shall prohibit the operator from transferring the switch to a bad…