Attachment B - LIBERTY Compiled Spec Final FY22.pdf

Spec. No. 1050

SECTION C

DESCRIPTION/SPECIFICATIONS

LIBERTY SUBSTATION

STATION SERVICE

REPLACEMENT PROJECT

ARIZONA

SECTION C

DESCRIPTION/SPECIFICATIONS

LIBERY SUBSTATION – STATION SERVICE REPLACEMENT PROJECT

DIVISION 1 – GENERAL REQUIREMENTS

A. CONTRACT REQUIREMENT

B. DESCRIPTION OF WORK

1. Sitework

2. Concrete and Steel

3. Substation Electrical

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

G. GEOLOGIC INVESTIGATIONS

H. ELECTRIC POWER FOR CONSTRUCTION PURPOSES

I. WATER FOR CONSTRUCTION PURPOSES

J. EXPLOSIVES AND BLASTING

K. BURIED UTILITIES

L. EMPLOYEE REQUIREMENTS

M. ELECTRICAL MINIMUM APPROACH DISTANCES

N. SUBMITTALS AND CORRESPONDENCE

1. General

2. Transmittal

3. Submittal Response

4. Physical Sample Submittals

5. Project Protocol

DIVISION 2 – SITEWORK

A. DESCRIPTION OF BIDDING SCHEDULE ITEMS

1. Bidding Schedule item “Miscellaneous sitework”

2. Bidding Schedule item “Demolition” includes the following

3. Bidding Schedule does not contain separate items

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 ITEMS

1. Bidding Schedule item “Concrete foundations”

2. Bidding Schedule item “Cable trenches”

DIVISION 4 – SUBSTATION METALWORK

A. GENERAL

1. Measurement

B. DESCRIPTION OF BIDDING SCHEDULE ITEMS

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

2. Bidding Schedule item “Modifying existing steel structures”

DIVISION 9 – SUBSTATION - ELECTRICAL

A. GENERAL

1. Bidding Schedule for Government-furnished items

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

3. Associated Support Structures

4. Installation and Painting

B. DESCRIPTION OF BIDDING SCHEDULE ITEMS

1. Bidding Schedule item “Combination interrupter switch and fuses, 34.5kV, three-phase”

2. Bidding Schedule item “Automatic Transfer Switch, 240V, 1200 amps, three-phase”

3. Bidding Schedule item “24kV-240/120V, 500kVA, pad mounted transformer, three-phase”

4. Bidding Schedule item “12.47kV-240/120V, 500kVA, pad mounted transformer, three-phase”

5. Bidding Schedule item “480-240V, 500kVA, dry-type transformer, three-phase”

6. Bidding Schedule item “Fusible safety switches”

7. Bidding Schedule item “Outdoor AC main distribution switchboard”

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

9. Bidding Schedule item “Indoor AC distribution boards”

10. Bidding Schedule item “Lighting contactor”

11. Bidding Schedule item “Equipment signs”

12. Bidding Schedule item “Junction Box Assembly”

13. Bidding Schedule item “Substation Grounding System”

14. Bidding Schedule item “Substation Conduit System”

15. Bidding Schedule item “Substation Bus System”

16. Bidding Schedule item “1/0 AWG, 35-kV, insulated copper cable”

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

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

DIVISION 13 – ENVIRONMENTAL QUALITY PROTECTION

A. CONTRACTOR-FURNISHED DATA

1. Bidding Schedule does not contain separate items

B. SPECIAL CONDITIONS

DIVISION 15 – DRAWINGS

A. CONSTRUCTION DRAWINGS

1. General

B. AS-BUILT DRAWINGS

1. General

2. Recording Information

3. Drawing Markup

4. Drawing Review

5. As-Built Information to be Recorded

C. REVIEW OF AS-BUILT DRAWINGS

1. As Built Drawing Submittal

2. Review

3. Acceptance

LIBERTY SUBSTATION – STATION SERVICE REPLACEMENT PROJECT

DIVISION 1 – GENERAL REQUIREMENTS

a. CONTRACT REQUIREMENT:

Construct and complete Liberty Substation Station Service Replacement Project, in accordance with the Construction Contract (Standard Form 1442); the Contract Clauses; WAPA’s 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 – Buildings (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:

The principal components of the work include the following:

1. SITEWORK:

a. Replacing and protecting existing gravel surfacing.

2. CONCRETE AND STEEL:

a. Providing foundations, anchor bolts and galvanized steel structures for electrical equipment.

b. Providing precast cable trench and covers.

c. Modifying steel structures.

3. SUBSTATION ELECTRICAL:

a. Furnishing and installing station service transformers, automatic transfer switch, safety switches, outdoor electrical panels, indoor electrical panels and lighting contactor.

Furnishing only equipment signs and outdoor junction box.

b. Furnishing and installing combination fuse/disconnect switch.

c. Furnishing and installing the substation grounding system.

d. Furnishing and installing the substation conduit system.

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

e. Furnishing and installing the substation bus system.

f. Furnishing and installing 600V and 35kV insulated copper cables.

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

The work is located in Maricopa County, approximately 3-miles north of Liberty, Arizona, as shown on Drawing LIB 0015.

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

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. O U T A G E R I S T R I C T I O N S : In addition to the restrictions listed in Construction Standard 1, the following outage restrictions shall apply:

a. Outages will not be allowed on 12.47-kV, 24-kV, 230-kV, or 345-kV equipment between

May 1st and September 30th of each year.

b. Outage requests for this equipment shall be shown on the construction schedule and confirmed in writing to the COR at least 45 days in advance.

c. Concurrent outages will not be allowed on the 12.47-kV and 24-kV sources for the existing station service system.

d. Outages not exceeding 8 hours in duration on 240-volt and 120-volt station service equipment may be arranged by written request to the COR at least 15 days in advance.

e. It may be necessary to schedule outages for nights or weekends to accommodate power system operating needs, personnel availability, and/or weather conditions. The contractor will not be entitled to additional compensation for night or weekend outage work.

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

a. New station service switchgear system consisting of KYA, SSA, ATS, DYA, DYA2, SSB, SSC, and KYB shall be installed and properly grounded before any existing equipment is removed from service.

b. 240/120-volt wiring connections shall be completed between new KYA, SSA, ATS, SSB, DYA, DYA2, and KYB before any existing equipment is removed from service.

c. New 35-kV cable circuit and transformer KYA shall be tested and ready to energize when new combination interrupter switch and fuses are ready to energize. All necessary materials must be on site before installation of switch, fuses, and cable circuit will be allowed.

d. In addition to permanent connections for new transformer KYA, temporary connections shall be installed between new combination interrupter switch and fuses and existing transformer KYA so that both new and existing station service switchgear systems can be energized from the 24-kV source.

e. The existing 12.47-kV cable circuit cannot be disconnected from existing transformer

KYB until existing station service system is fed from the 24-kV source via the new combination interrupter switch and fuses.

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

b. 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:

i. The maximum available fault current in the 24.9-kV area is 20,851 amps and the X/R ratio is 42.5.

ii. A minimum of one (1) 2/0 grounds shall be used in the 24.9-kV area.

c. SAFETY AND HEALTH PROGRAM: Prior to the start of field construction operations at the jobsite, 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.

f. CONSTRUCTION SCHEDULE:

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

b. 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.

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

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 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, 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 Contracting Officer’s Representative (COR).

o. SUBMITTALS AND CORRESPONDENCE:

a. GENERAL: Submittals must be provided in accordance with the Construction Standards and Project

Specifications. The Contractor shall furnish submittals electronically (i.e., SharePoint or e-mail), unless otherwise specified by the COR. Submittals shall be sent to DSW Construction SharePoint Site in standard PDF or electronic CAD “*.dwg” (AutoCAD 2016) formats. All submittals shall include WAPA’s Contract No., Project Title, Transmittal/Submittal No., and corresponding Item No. Refer to the Submittal Log for the list of required submittals. This list may not be all-inclusive, and it remains the Contractor’s responsibility to ensure conformance to the individual Specifications for possible additional submittal requirements.

In addition to the submittals required in the attached Submittal Log, the Contractor shall submit the following to DSW Construction SharePoint site:

a. Payrolls.

b. Subcontractor List/Forms.

c. Citizenship Forms.

d. Erosion Control Plan.

e. Environmental Submittals.

f. Request for Information (RFI.)

g. Request for Equitable Adjustment (REA).

h. Any questions comments, correspondence relevant to this project.

b. APPROVAL TIME: Approval time for submittals shall be in accordance Section 1.D.2 with the “Commencement, Prosecution and Completion of Work” paragraph.

c. SUBMITTAL RESPONSE: WAPA will respond to submittals electronically with an “Approved” “Received,” or “Not Approved” status, with comments as appropriate in accordance with the “Commencement, Prosecution and Completion of Work” paragraph to the email address where the submittals originated

d. 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

ATTN: A7900

12155 W. Alameda Parkway Lakewood, CO 80228-2802

e. PROJECT PROTOCOL:

i. Electronic Correspondence:

EMAIL SUBMITTAL FORMAT:

Subject Line in Email Submittal number, Subject, Applicable Standard Number, Project Name/Number, and Contract Number Example: Submittal 017, Steel Compression Dead Heads-Std 10, Ault Substation Stage No 08, 9503218CWA000XXXX-XXX

ii. Payment Requests:

EMAIL PAYMENT REQUEST FORMAT:

Invoice number and Project Name/Number and Contract Number Example: Invoice 01, Ault Substation Stage 08,9503218CWA000XXXX-XXX

iii. Certified Payrolls-Prime and Subcontractors:

EMAIL CERTIFIED PAYROLL FORMAT:

Certified Payroll (CP), Contractor’s names, Week ending (WE), and Project Name/Number, and Contract Number Example: CP-(Smith Inc., Bob’s Electrical), WE 09/12/18 & 09/19/18, Ault Substation Stage 08, 9503218CWA000XXXX-XXX

iv. Request for Information:

EMAIL (REQUEST FOR INFORMATION) FORMAT:

Request for Information (RFI), Project Name/Number, and Contract Number Example: RFI-003, Labeling Info, Ault Substation Stage 08, 9503218CWA000XXXX-XXX

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, where disturbed by this project.

b. Providing new gravel surfacing as needed due to foundation work. New gravel surfacing shall be Arizona Department of Transportation (ADOT) standard road base.

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

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

a. Completely remove and dispose of 6-inches by 6-inches by 5/16-inch steel beam designated on Existing Installation Drawing LIB 2039.

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 fills 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 IIA cement. Types are according to ASTM C 150.

b. Compressive Strength: 4500-psi minimum at 28-days for concrete in moderate (Class F1) and severe (Class F2) frost-susceptible zones per ACI 318, Chapter 4 – Durability Requirements.

c. Water-Cement Ratio: Net water-cement ratio, exclusive of water absorbed by the aggregates, shall not exceed 0.45 by weight for NESC heavy or medium loading areas and moderate or severe frost-susceptible zones per ACI 318, Chapter 4 – Durability Requirements.

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

COR.

e. 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: 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 shall 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. Mix Design shall be in accordance with Standard 3, including Section 3.1.1.5.3.(5).

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

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 NESC Heavy & Medium

4500 at 28-days

0.45

No. 57

2 – 5

4 - 7

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

3. Alternatively, the minimum cement content for mix designs can follow Standard 3, Section 3.1.1.5.3.(5) for the required 28-day compressive strength.

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 ITEMS:

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

a. Earthwork, formwork, reinforcement, material used in concrete, void forming material, drilling and grouting anchor bars, 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 electrical equipment.

d. Unwatering foundation excavations, if required.

e. Trial augering, if required.

Measurement for quantities for concrete foundations will be made on the basis of concrete quantities shown on Drawing LIB 2075. 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 trench, complete with sandfill, polymer modified concrete covers and other accessories.

DIVISION 4 – SUBSTATION METALWORK

A. GENERAL:

1. 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)”.

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

a. One (1) Single Switch Operating Platform – Type I, including grating.

b. Station Service Support Frames as shown on drawings LIB 2609 through LIB 2612.

2. Bidding Schedule item “Modifying existing steel structures” includes modifying existing steel structures and providing steel members as shown on LIB 2039.

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 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 ......................................................................................... +55°C Maximum 24-Hour Average ............................................................. +45°C Minimum ........................................................................................ .. -20°C

Elevation:

Above Mean Sea Level ............................................................. ..950-Feet

*ASCE-7 Wind Load

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

*IEEE 693 Seismic Qualification ............................................................. Moderate

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

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.

1. Bidding Schedule item “Combination interrupter switch and fuses, 34.5kV, three-phase” includes providing the combination interrupter switch and fuses in accordance with WAPA ES

8.2 equipment standard:

DESIGNATION WY2C-FY2A

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 SMD-2C or equivalent

System Nominal Voltage (kV) 34.5

Rated Maximum Voltage (kV) 38

Basic Impulse Insulation Level (kV) 200 Switch Continuous Current Rating (Amps) 600

Fuse Interrupting Ratings

RMS Symmetrical (Amps) 33,500 SMD-2C type

RMS Asymmetrical (Amps) 53,500 SMD-2C type Phase Spacing 4’-0” Approximate Mounting Height Above Ground 15’-0”

Mounting position Vertical Approximate E Rating* 10 E to 30 E

*Exact E rating will be furnished after the Contractor has submitted to the COR the time-current curves of proposed fuse unit.

2. Bidding Schedule item “Automatic Transfer Switch, 240V, 1200 amps, three-phase” includes providing outdoor automatic source transfer switch Eaton catalog number ATC9C3X41200WDU with optional features 10b (primary source selection), 18cl (power meter), 48f (Modbus communication) and 54b (stainless NEMA 4X) or equal as shown on the Drawings:

DESIGNATION ATS

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

Required Voltage Rating 240 V

Enclosure NEMA Type 4X

Transition type Contactor based

Source continuous current rating (amps) 1200

Momentary current 10-cycle Asym, (kA) 50

Operation type Delayed Open Transition (break before make)

Poles 4

DESIGNATION ATS

Switched neutral Yes

Cable entry Bottom entrance / Bottom exit

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

b. The automatic source transfer switch shall have 3-phase switching and have automatic, remote and manual operation. The source transfer shall be Delayed Open Transition 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 PXM1K-DISP-3 digital power meter or equal on the

ATS.

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

f. Transfer switch shall be capable of utility-utility transfer with primary source selection.

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

3. Bidding Schedule item “24kV-240/120V, 500kVA, pad mounted transformer, three-phase” includes providing a pad mounted transformer in accordance with WAPA ES 2.1 Equipment Standard:

DESIGNATION KYA

Pad mounted, 3-phase, 60-Hz, outdoor, self-cooled, FR3* oil filled, loop feed, dead front

Voltage Rating 24-kV delta to 240/120 V center tapped delta

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

Capacity (kVA) 500 Impedance (minimum) 3.1-% Z

Number of High- Voltage Bushing Wells

Number of Low- Voltage Bushings with NEMA Pads

High-Voltage BIL (kV) 150

DESIGNATION KYA

Low-Voltage BIL (kV) 30

Primary side fuse Yes, see below

*Envirotemp FR3, or equal.

a. Transformer shall be Eaton Cooper Envirotran transformer type, or equal.

b. Supply one (1) 35-kV elbow connector tool, Chance Catalog No. C403-0391, or equal.

c. For transformer KYA supply the following accessories:

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

(2) Four (4) 35kV Class, 200-amp load break terminating elbows (includes one (1) spare).

(3) Six (6) 35kV Class Bushing well inserts.

(4) Six (6) 35kV Class Bushing wells.

(5) Three (3) 35kV Class metal oxide varistor (MOV) surge arresters with mating 200-amp load break elbow interface.

4. Bidding Schedule item “12.47kV-240/120V, 500kVA, pad mounted transformer, three-phase” includes providing a pad mounted transformer in accordance with WAPA ES

2.1 Equipment Standard:

DESIGNATION KYB

Pad mounted, 3-phase, 60-Hz, outdoor, self-cooled, FR3* oil filled, loop feed, dead front

Voltage Rating 12.47-kV delta to 240/120 V center tapped delta

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

Capacity (kVA) 500 Impedance (minimum) 3.1-% Z

Number of High- Voltage Bushing Wells

Number of Low- Voltage Bushings with NEMA Pads

High-Voltage BIL (kV) 125

DESIGNATION KYB

Low-Voltage BIL (kV) 30

Primary side fuse Yes, see below

*Envirotemp FR3, or equal.

a. Transformer 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 transformer KYB supply the following accessories:

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

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

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

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

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

(6) Three (3) 25:5 or 30:5 ampere ratio metering-accuracy current transformers shall be provided in the high-voltage incoming section for revenue metering purposes.

5. Bidding Schedule item “480-240V, 500kVA, dry-type transformer, three-phase” includes providing a dry-type transformer in accordance with ANSI C57. Transformer shall be painted with the manufacturer’s standard painting system, color ANSI 70 gray.

DESIGNATION T2

Pad mounted, three-phase, outdoor, self-cooled, dry-type, dead front

Voltage Rating 480 V to 240 V

High-Voltage Taps (percent) ±2.5

Capacity (kVA) 500

Impedance (minimum) 0.8

6. Bidding Schedule item “Fusible safety switches” includes providing five (5) AC safety switches with fuses as shown on the Drawings. Safety Switches are designated SSA, SSB, SSC, SSD and SSE. Safety Switch enclosures shall be NEMA type 4X. Safety Switches shall be in accordance with WAPA ES 2.3.4.15 Equipment Standard.

7. Bidding Schedule item “Outdoor AC main distribution switchboard” includes providing outdoor, floor mounted AC distribution switchboard system DYA as shown on Drawing LIB 1670.

The switchboard shall be flat roof, front access non-walk-in style, Eaton Pow-R-Line C or equal.

Switchboard DYA shall consist of a 1200 amp, 3-phase, 4-wire system rated 65kAIC minimum withstand with core balance or similar ground fault detection scheme. The switchboard enclosure shall be stainless steel, NEMA 4X, and a minimum 51-inches-wide by 30-inches-deep. The switchboard shall be in accordance with WAPA ES 2.3.3, 2.3.4 and 2.3.11 Equipment Standards.

Provide 3-point latch with supplemental quarter turn latches in lieu of the standard NEMA 4X door clamps.

8. Bidding Schedule item “Outdoor AC distribution yard panels” includes providing surface mounted outdoor AC distribution board system as shown on Drawings LIB 1670, LIB 1671 and LIB 1672. The AC distribution boards are designated DWA and DYA2. Distribution board enclosures shall be NEMA 4X, continuous hinge with 3-point latch type 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.

All circuit breakers shall be rated for 22kA interrupting current minimum.

9. Bidding Schedule item “Indoor AC distribution boards” includes providing surface mounted indoor AC distribution boards as shown on Drawings LIB 1673 and LIB 1674. The AC distribution boards are designated DHA4 and DHA5. The distribution boards shall be in accordance with WAPA ES 2.3.4 and 2.3.11 Equipment Standard. All circuit breakers shall be rated for 22kA interrupting current minimum. The AC distribution boards shall be installed in the service building on the east wall, just to the south of existing panel DHA3.

10. Bidding Schedule item “Lighting contactor” includes providing a lighting contactor 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 NEMA 4X and have 3-point latch style or similar in lieu of screw type door clamps.

11. Bidding Schedule item “Equipment signs” includes furnishing equipment Identification signs as shown on drawing LIB 1140. Equipment identification sign requirements can be found on WAPA standard drawing 31 1000.

12. Bidding Schedule item “Junction Box Assembly” includes furnishing one weathertight NEMA

Type 4X junction box and associated support structure as shown on Drawing LIB 1721. The junction box shall accommodate three (3) 4-inch and four (4) 2-inch conduits.

13. 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.)

14. 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.

15. 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. Insulators shall be ANSI 70 gray.

16. Bidding Schedule item “1/0 AWG, 35-kV, insulated copper cable” includes providing 1/0 AWG, 35-kV, insulated copper power cable type MV-105, 133-percent insulation level, Southwire Simpull NL-EPR or equal. Cables shall run from FY2A to KYA as shown on drawings.

Cable runs are 3-phase

17. 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 B.

b. 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.

c. Shielded Insulated Conductors: Includes providing insulated conductors and cables except power cable with insulation greater than 15,000 V. All insulated conductors shall be shielded as described in Section 9.2.3.2(5) of the construction standards.

18. 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) Substation conductors and bus work as shown on the Drawings.

LIBERTY SUBSTATION – SERVICE TRANSFORMER REPLACEMENT

DIVISION 13 – ENVIRONMENTAL QUALITY PROTECTION

A. CONTRACTOR-FURNISHED DATA:

1. The Bidding Schedule does not contain separate items for the following requirements. Include these items in the applicable Bidding Schedule items:

a. Environmental Quality Protection includes the following:

(1) Environmental Requirements (Refer Standard 13.3)

(2) Landscape Preservation (Refer Standard 13.4)

(3) Preservation of Cultural and Paleontological Resources (Refer

Standard 13.5)

(4) Noxious Weed Control (Refer Standard 13.6)

(5) Recycled Materials Quantities (Refer Standard 13.7)

(6) Use of Recovered Material and Biobased Material Products (Refer Standard 13.8)

(7) Disposal of Waste Material (Refer Standard 13.9)

(8) Contractor’s Liability for Regulated Material Incidents (Refer Standard

13.10)

(9) Pollutant Spill Prevention, Notification, and Cleanup (Refer Standard 13.11)

(10) Pesticides (Refer Standard 13.12)

(11) Treated Wood Utility Poles and Crossarms Recycling or Disposal

(Refer Standard 13.13)

B. Special Conditions - In addition to the requirements of Standard 13, the following special conditions will apply:

(1) General:

(a) The Contractor must notify the COR 120-calendar-days prior to any soil- or vegetation-disturbing activities for WAPA to complete required assessments. The Contractor will provide the location of any staging areas, HLZ sites, or other use areas to the COR as soon as feasible, but no later than 120-calendar-days before mobilization. During the 120-calendar-days review period, pre-construction surveys and consultations will be conducted. Only approved areas will be permitted for use by the Contractor.

(b) All Contract personnel, including Sub-contractors, will attend an environmental awareness training prior to the start of work. The training will cover cultural sensitivity and biological resource awareness, including a review of pertinent legislation, standard operating procedures, and project conservation measures. Any persons that do not attend the originally scheduled training will complete the training and understand the required mitigation measures prior to entering the project area.

(c) Contractor will coordinate construction activities with landowners, including notification of construction schedule and planned activities. Please notify WAPA counterparts when this happens.

(2) Air Pollution and Air Quality:

(a) GENERAL: Ensure that construction activities and the operation of equipment are undertaken to reduce the emission of air pollutants. The Contractor will complete and submit a Dust Control Permit Application Form and a Dust Control Plan Application Form plus pay any permit fees to Maricopa Air Quality Department before construction activities begin within Maricopa County. Submit the appropriate fee (depending on total surface area disturbed) with your Dust Control Permit and Plan Application Forms. The Contractor will submit a copy of Permit and Plan application Forms to the COR 14 days prior to the start of work. Check http://www.maricopa.gov/1919/Dust- Control-Permit-Applications-Rule-31 for additional information.

(b) MACHINERY AIR EMISSIONS: The Contractor and subcontractor machinery will have and will use the air emissions control devices required by Federal, State or Local Regulation or ordinance.

(c) DUST ABATEMENT: Dust will be controlled as listed in the

Maricopa County’s Fugitive Dust Guidance Rule 310. The Contractor will be familiar with Rule 310 and the Dust Control handbook. Oil will not be used as a dust suppressant. Dust suppressants will be approved by the COR prior to use.

(d) CONSTRUCTION ACTIVITIES CONSIST OF: Land stripping, earthmoving, blasting, trenching, road construction, grading, http://www.maricopa.gov/1919/Dust-Control-Permit-Applications-Rule-31 http://www.maricopa.gov/1919/Dust-Control-Permit-Applications-Rule-31 landscaping, stockpiling/storing/loading excavated materials, or any other activity associated with land development which results in a disturbed surface area or dust generating operations, equal to or greater than 0.1 acres.

(e) Contractor will submit a copy of the application and Dust Control permit to the COR 14 days prior to the start of work. Construction activities consist of: Land stripping, earthmoving, blasting, trenching, road construction, grading, landscaping, stockpiling/storing/loading excavated materials, or any other activity associated with land development which results in a disturbed surface area or dust generating operations, equal to or greater than 0.1 acres.

(f) Contractor will minimize land disturbance. At all proposed work areas, the Contractor will limit the mechanical disturbance of previously undisturbed areas (including soils) to the greatest extent practicable. In new impact areas, the Contractor will limit the mechanical disturbance to the greatest extent practicable.

(g) Contractor will suppress dust on traveled paths through wetting, use of watering trucks, chemical dust suppressants, or other reasonable precautions.

(h) Within desert habitat, the Contractor will apply water to dirt roads and construction areas using the minimum amount needed to meet air quality standards.

(i) The Contractor and subcontractor machinery will have and will use the air emissions control devices required by Federal, State or Local Regulation or ordinance.

(j) SPEED: Contractor will limit speeds to 25 miles per hour on stabilized unpaved roads and lower it if dust emissions are visible. Contractor will limit speeds to 10 miles per hour on unpaved areas within construction sites on unstabilized roads.

(k) Contractor will cover trucks when hauling soil. Contractor will minimize soil track-out. Contractor will stabilize the surface of soil piles. Contractor will create windbreaks in areas highly susceptible to fugitive dust. Contractor will revegetate any disturbed land not used. Contractor will remove unused material.

Contractor will remove soil piles via covered trucks.

(3) CONTRACTOR'S LIABILITY FOR REGULATED MATERIAL

INCIDENTS:

(a) GENERAL: The Contractor is solely liable for all expenses related to spills, mishandling, or incidents of regulated material attributable to his actions or the actions of his subcontractors.

This includes all response, investigation, cleanup, disposal, permitting, reporting, and requirements from applicable environmental regulation agencies.

(b) SUPERVISION: The actions of the Contractor employees and subcontractors will be properly managed at all times on Western property or while transporting Western’s (or previously owned by Western) regulated material and equipment.

(4) POLLUTANT SPILL PREVENTION, NOTIFICATION, AND CLEANUP

(a) GENERAL: Provide measures to prevent spills of pollutants and respond appropriately if a spill occurs. A pollutant includes any hazardous or non-hazardous substance that when spilled, will contaminate soil, surface water, or ground water. This includes any solvent, fuel, oil, paint, pesticide, engine coolants, and similar substances.

(b) SPILL PREVENTION NOTIFICATION AND CLEANUP PLAN

(Plan): Provide the Plan to the COR for review and comment 14 days prior to start of work. Review of the plan is for the purpose of determining compliance with the specifications only and will not relieve the Contractor of the responsibility for compliance with all Federal, State, and Local regulations. Include the following in the Plan:

1) Spill Prevention measures. Describe the work practices or precautions that will be used at the job site to prevent spills.

These may include engineered or manufactured techniques such as installation of berms around fuel and oil tanks;

Storage of fuels, paints, and other substances in spill proof containers; and management techniques such as requiring workers to handle material in certain ways.

2) Notification. Most States and the Environmental Protection

Agency require by regulation, that anyone who spills certain types of pollutants in certain quantities notify them of the spill within a specific time period. Some of these agencies require written follow up reports and cleanup reports. Include in the Plan, the types of spills for which notification would be made, the agencies notified, the information the agency requires during the notification, and the telephone numbers for notification.

3) Employee Awareness Training. Describe employee awareness training procedures that will be implemented to ensure personnel are knowledgeable about the contents of the Plan and the need for notification.

4) Commitment of Manpower, Equipment and Material. Identify the arrangements made to respond to spills, including the commitment of manpower, equipment and material.

5) If applicable, address all requirements of 40CFR112 pertaining to Spill Prevention, Control and Countermeasures Plans.

(5) PREVENTION OF WATER POLLUTION

(a) GENERAL: Ensure that surface and ground water is protected from pollution caused by construction activities and comply with applicable regulations and requirements. Ensure that streams, waterways and other courses are not obstructed or impaired unless the appropriate Federal, State or local permits have been obtained.

(6) CULTURAL

(a) The project is located inside of a National Register of Historic Places (NRHP) eligible site, the following efforts will need to be assured to avoid or minimize adverse effects. In accordance with the 2021 Programmatic Agreement Among the U.S.

Department of Energy-Western Area Power Administration, Arizona State Historic Preservation Officer, and The Advisory Council on Historic Preservation Regarding Maintenance and Minor Construction Activities at Existing WAPA Transmission Facilities and Access Roads in Arizona.

(b) WAPA will follow all stipulations in the 2021 PA including;

1) restricting work to previously disturbed areas

2) no ground disturbing activity outside of the APE

3) photographing the property before work is initiated and after completion

4) providing a monitor for the duration of the project to ensure compliance.

(c) The contractor will provide WAPA, in writing, 60 days notice of their inability to fulfill the above stipulations so the appropriate consultation may take place; this consultation process may last longer than 60 days and the contractor will not be permitted to work within or near the boundaries of a historic property until WAPA’s Regional Preservation Officer (RPO) or project Archaeologist has indicated in writing the work may proceed.

(d) WAPA requires in the event unexpected archaeological resources or human remains are discovered during construction of the Project, all activities must cease in the immediate vicinity of the discovery and WAPA’s RPO or project Archaeologist must be immediately notified. Work will not resume until WAPA’s RPO or project Archaeologist has indicated in writing that the work may proceed.

(7) BIOLOGY

(a) Coordination for Preconstruction Surveys

1) 60 days prior to the commencement of work, the contractor will provide a schedule to WAPA so that WAPA can conduct a preconstruction biological survey no more than 7 days in advance of any ground- or vegetation disturbing activities in any location due to the possibility that special-status species and nesting birds may be found in the Project area.

2) Contractor will not conduct any ground- or vegetation-disturbing activities until the WAPA conducts a preconstruction biological survey.

(b) Biological monitor

1) WAPA will provide an authorized biologist during any construction work in Mojave/Sonoran Desert tortoise habitat during the tortoise activity season (March 1 to October 31).

An “authorized biologist” must have at minimum:

i. Locate, identify, and report all forms of desert tortoise sign in accordance with approved protocols; and

ii. Handle and temporarily hold desert tortoises; and iii.Move desert tortoises from harm’s way when they enter project sites; and

iv. Relocate/translocate desert tortoises prior to implementation of projects; and

v. Excavate burrows to locate desert tortoises.

2) WAPA will provide a qualified biologist during any construction work in Mojave/Sonoran Desert tortoise habitat during the tortoise non-activity season (Sept 1 to Feb 28). A "qualified biologist" is defined as a person with appropriate education, training, and experience to monitor project activities, provide worker education programs, and supervise or perform other implementing actions.

3) Contractor will avoid tortoise burrows and other sensitive features…