Olinda Revised Specification - Amendment 0002.pdf

OLINDA SUBSTATION

STATION SERVICE UPGRADES

Spec No. 960 Amendment 002

SECTION C

DESCRIPTION/SPECIFICATIONS

CALIFORNIA

SECTION C

DESCRIPTION/SPECIFICATIONS

OLINDA SUBSTATION STATION SERVICE UPGRADES

DIVISION 1 – GENERAL REQUIREMENTS

A. CONTRACT REQUIREMENT

B. DESCRIPTION OF WORK

1. The Principal Components of Work

C. DESCRIPTION OF BIDDING SCHEDULE ITEM

1. Bidding Schedule item “Mobilization and preparatory work”

D. COMMENCEMENT, PROSECUTION AND COMPLETION OF WORK

1. Submittal Approval Time

2. Commencement of Control Work

3. Outage Restrictions

4. Construction Schedule Restrictions

5. Protective Ground Leads

6. Maximum Available Fault Current

7. Typical Foundations for Government-Furnished Electrical Equipment

8. Typical Foundations for Contractor-Furnished Electrical Equipment

E. CONSTRUCTION SCHEDULE

1. Submittal Time

2. Format and Detail

F. MATERIAL

1. Points-of-Delivery

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”

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. Rebar Development (LD) and Lap Length

B. DESCRIPTION OF BIDDING SCHEDULE ITEMS

1. Bidding Schedule item “Concrete foundations”

2. Bidding Schedule item “Cable trench”

3. Bidding Schedule item “Concrete pull boxes”

4. Bidding Schedule item “Concrete encasement”

DIVISION 4 – SUBSTATION METALWORK

A. GENERAL

1. Measurement

B. DESCRIPTION OF BIDDING SCHEDULE ITEMS:

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

DIVISION 9 – SUBSTATION - ELECTRICAL

A. GENERAL

1. Bidding Schedule for Government-furnished items

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

3. Unless otherwise specified, associated support structures provided for each electrical equipment rated above 7-kV

4. Installation and painting of electrical equipment and material

B. DESCRIPTION OF BIDDING SCHEDULE ITEMS

1. Bidding Schedule item “Station service voltage transformer, 230-kV, 333-kVA (Government furnished)”

2. Bidding Schedule item” Motor-operated disconnecting switch 230-kV, 2,000 amps with whips”

3. Bidding Schedule item “Surge arrester, 192kV Duty Cycle, 152-kV MCOV”

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

5. Bidding Schedule item “Station service transformer”

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

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

8. Bidding Schedule item “Safety Switches”

9. Bidding Schedule item “Shielded 500MCM 600V Insulated conductors”

10. Bidding Schedule item “Shielded Insulated conductors”

11. Bidding Schedule item “Outdoor AC main distribution panelboard”

12. Bidding Schedule items “Furnishing 12/c No. 10 AWG control cable”

13. Bidding Schedule items “Furnishing 2/c No. 6 AWG control cable”

14. Bidding Schedule items “Installing 12/c No. 10 AWG control cable”

15. Bidding Schedule items “Installing 2/c No. 6 AWG control cable”

16. Bidding Schedule items “Furnishing RS-485 communication cable”

17. Bidding Schedule items “Installing RS-485 communication cable”

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

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

DIVISION 13 – ENVIRONMENTAL QUALITY PROTECTION

A. GENERAL

1. Submittals

2. Prevention Of Air Pollution

3. Western Area Power Administration, Sierra Nevada Idling Policy

4. Materials With Lead-Based Paint and/or Asbestos

5. Disposal of Waste Materials ........................................................... Error! Bookmark not defined.

6. Pollutant Spill Prevention, Notification, and Cleanup

7. Contractor’s Liability for Regulated Material Incidents

8. Landscape Preservation

9. Preservation of Cultural and Paleontological Resources

10. Conservation of Biological Resources

DIVISION 15 – DRAWINGS

A. GENERAL

1. Construction Drawings

B. AS-BUILT DRAWINGS

1. General

2. Recording Information

3. Marking of Drawings

4. Drawing Review

5. As-Built Information to be Recorded

6. Submittals

DIVISION 1 – GENERAL REQUIREMENTS

A. CONTRACT REQUIREMENT:

Construct and complete Olinda Substation Station Service Upgrade, in accordance with the Construction Contract (Standard Form 1442); the Contract Clauses; WAPA’s Construction Standards, including Standard 1 – General Requirements (September 2016), Standard 2 – Sitework (September 2016), Standard 3 – Concrete (September 2016), Standard 4 – Substation Metalwork and Transmission Line Lattice Structures (September 2016), Standard 5 – Transmission Line Steel Pole Structures (September 2016), Standard 6 – Light Duty Steel Pole Structures (September 2016), Standard 7 – Wood Poles (September 2016), Standard 8 – Glued Laminated Structures (September 2016), Standard 9 – Substation – Electrical (September 2016), Standard 10 – Transmission Line – Electrical (September 2016), Standard 11 – Service Building (September 2016), Standard 12 – Painting (September 2016), Standard 13 – Environmental Quality Protection (September 2016), Standard 14 – Communication Facilities (September 2016), Standard 15 – Drawings (September 2016); Standard Drawings; and these Project Specifications and Drawings.

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

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

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

B. DESCRIPTION OF WORK:

1. THE PRINCIPAL COMPONENTS OF WORK include the following:

a. Installation of temporary 35-kV power cables.

b. Removal of existing Unit Substation DZA.

c. Removal of one (1) pad mount transformer designated KZ31A.

d. Removal of 375W standby generator and propane storage tank.

e. Installation of 230-kV bay including motor operated disconnect switch, government furnished SSVT’s and associated material and equipment.

f. Installation of two (2) pad mount transformers, one (1) automatic transfer switch, three (3) safety switches, one (1) main distribution panel and associated station service equipment to included insulated conductors, conduit and concrete encased conduit. Installation of concrete foundation and support structure for station service equipment. Installation of precast cable trench.

g. Providing foundations for substation structures and electrical equipment. Providing galvanized steel structures.

h. Providing and installing pull boxes.

i. Removal of cable/equipment after station service cutover.

Paragraphs “Description of Bidding Schedule Items” in Divisions – 1, 2, 3, 4, 9 and 15 describe the work to be performed.

The work is located near Cottonwood, California as shown on Drawing ODA 0015. The jobsite address is: Olinda Substation, 18275 Gas Point Rd, Cottonwood California, 96032.

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 Section H of the contract clauses.

b. Prepare and submit a Construction Schedule and furnish a Safety and Health Program.

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 30-calendar days for review of drawings or data submitted for approval.

2. COMMENCEMENT OF CONTROL WORK: Do not perform any control board or outdoor equipment wiring until receipt of Government-furnished wiring diagrams. WAPA will furnish outdoor wiring diagrams and schematic diagrams no sooner than 20-calendar-days after WAPA receives equipment final drawings and data from the Contractor for contractor-furnished items.

Include these restrictions in the Construction Schedule.

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

a. Neither Cottonwood 1 nor Cottonwood 2 lines can be de-energized between the months of June-September.

b. Rigid bus shall be cut as shown on Drawings ODA 1020 and ODA 1154-2 EI to help isolate construction area bus. Provisions must be in place to reconnect removed bus sections using compression type couplers (DMC Power’s Bus & Cable Connectors and Swage System, AFL Swage system, or equal within 24-hours due to an emergency situation.

c. 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.

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

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

(COR).

b. The Contractor shall submit a construction sequence plan detailing order of work and demolition. This plan shall be reviewed and approved by the Contracting Officer’s Representative. Work cannot commence until the plan has been approved.

c. WAPA station service replacement projects shall be done sequentially (not concurrently).

Tracy TCY Station Service 52 days Thu 11/12/20 Fri 1/22/21 Tracy TRY Station Service 52 days Fri 1/22/21 Mon 4/5/21 Lawrence Livermore Station Service 52 days Mon 4/5/21 Tue 6/15/21 Olinda Station Service (ODA) 52 days Tue 6/15/21 Wed 8/25/21

5. PROTECTIVE GROUND LEADS: See WAPA Construction Standards, Standard 1 “General

Requirements”, Section 1.4.14.3(1).

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

a. The maximum available fault current in the 230-kV area is 29,895 amps and the X/R ratio is 12.9 prior to completing construction and 29,895 amps and the X/R ratio is 12.9 after completing construction.

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

c. The maximum available fault current in the KT1A 34.5-kV area is 8,307 amps and the X/R ratio is 109.9 prior to completing construction and 8,307 amps and the X/R ratio is 109.9 after completing construction.

d. A minimum of one (1) (4/0) grounds shall be used in the KT1A 34.5-kV area.

7. TYPICAL FOUNDATIONS FOR GOVERNMENT-FURNISHED ELECTRICAL EQUIPMENT:

Typical foundations are shown in Drawing ODA 2305. Regarding foundations noted as “design not firm”: WAPA will design these foundations after receipt and final approval of equipment cut sheets from the Contractor. WAPA will forward the revised construction drawings for these foundations no later than 45-days prior to the “NLT” delivery date listed in the, “Material” section.

If the “NLT” delivery date is adjusted by WAPA, forwarding of revised foundation construction drawings will be automatically adjusted in a like manner.

8. TYPICAL FOUNDATIONS FOR CONTRACTOR-FURNISHED ELECTRICAL EQUIPMENT:

Typical foundations are shown on Drawings ODA 2303 through ODA 2306. Regarding foundations noted as “design not firm”: WAPA will design these foundations after receipt and final approval of seismic qualification documents and informational drawings and data from the Contractor.

E. CONSTRUCTION SCHEDULE:

1. SUBMITTAL TIME: Prepare and Submit a Construction Schedule to the Contracting Officer (CO) within 45-calendar days after date of Notice to Proceed.

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

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

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

ITEM

ESTIMATED

WEIGHT

(LBS)

ESTIMATED

DELIVERY

DATE

ESTIMATED

COST

1. Three (3) single-phase, station service voltage transformers, 230-kV, 333 KVA designated

KY21A

11,500 ea NST 9/2/2020

NLT 12/31/2020 $500,000

NST – No sooner than.

NLT – No later than.

1. POINTS-OF-DELIVERY: GFE Material furnished by WAPA will be delivered to Olinda

Substation. The Contractor shall inspect the equipment and report any damages to the COR.

G. 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 shall 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.

H. ELECTRIC POWER FOR CONSTRUCTION PURPOSES:

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

I. 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.

J. EXPLOSIVES AND BLASTING:

Explosives shall not be used.

K. 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.

L. 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.

M. ELECTRICAL MINIMUM APPROACH DISTANCES:

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

N. SUBMITTALS AND CORRESPONDENCE:

1. 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. All submittals must be submitted with the attached cover sheet “CM-16 Transmittal Form Appendix D” in Microsoft Excel or PDF. Submittals will be rejected if CM-16 Form is not attached.

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. Sub-Contractor 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.

A submittal is required if the item is used in the performance of this contract.

2. TRANSMITTAL: The Contractor shall submit all correspondence (Request for Information, Submittals, etc.) to the following email addresses care of the COR.

Desert Southwest Region

ATTN: G5600

Email: DSW-G5600-CS@wapa.gov

3. SUBMITTAL RESPONSE: WAPA will provide a response to all submittals in accordance with

Division 1.D.2 of these specifications with an “Acceptable” or “Not Acceptable” status, with comments as appropriate to the email address where the submittals originated.

4. 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: G5600

P.O. Box 6457 Phoenix, AZ 85005-5313

5. PROJECT PROTOCOL:

a. Electronic Correspondence:

SUBMITTAL FORMAT:

Subject Line Transmittal number, Submittal number, Subject, Applicable Standard Number, and Project Name/Number Example: Transmittal 001, Submittal 017, Steel Compression Dead Heads-Std 10, Substation

Stage 06-DE-WA000xxxx

b. Payment Requests:

PAYMENT REQUEST FORMAT:

Invoice number and Project Name/Number Example: Invoice 01, Substation Stage 06 DE-WA000xxxx

c. Certified Payrolls-Prime and Sub-Contractors:

CERTIFIED PAYROLL FORMAT:

Certified Payroll (CP), Contractor’s names, Week ending (WE), and Project Name/Number Example: CP-(Smith Inc., Bob’s Electrical), WE 09/12/15 & 09/19/15, Substation Stage 06-DE-

WA000xxx

d. Request for Information:

(REQUEST FOR INFORMATION) FORMAT:

Request for Information (RFI), Project Name/Number Example: RFI-003, Labeling Info, Substation Stage 06-DE-WA000xxxx

TABLE 1 – SUBMITTAL INFORMATION GUIDELINE

Specifications

SECTION ITEM PR

O D

U C

T D

A

TA

SH

O

P D

R A

W

IN

G S

(p re lim in ar y fin al

C

A

LC

U

LA

TI

O

N S

IN

ST

A

LL

A

TI

O N

D

C O

LO

R

S A

M

PL

ES

M

IN

TE

N A

N C

E M

A

TE

R

IA

L

O

PE

R A

TI

O

N A

N D

M A

IN

T.

D

M

FR

W

IR

IN

G

D

IA

G R

A M

S

TE

ST

IN

G

R

EP

O R

TS

W

R R

A N

TY

C

ER

TI

FI

C A

TI

O

N S

O

M M

A N

U

LS

Division 1 Construction sequence plan ● ● Division 4 Steel Structures, welded (galvanized) ● ●

Division 3 Concrete ●

Division 9 Motor-operated disconnecting switch 230kV, 2,000 amps with whips ● ● ● ● ●

Division 9 Free-standing automatic transfer switch ● ● ● ● ● ●

Division 9 Station service transformer ● ● ●

Division 9 Temporary 1/0 AWG, 35-kV, insulated copper cable ●

Division 9 1/0 AWG 35-kV insulated copper cable ●

Division 9 Safety switches ● ● ● Division 9 Insulated conductors ●

Division 9 Outdoor AC main distribution panelboard ● ● ●

Division 9 Control cable ● Division 9 RS-485 communication cable ● Division 9 Junction cabinet ● ● ● Division 9 Cable terminators ● ● Division 9 Riser cable supports ● ● Division 9 Emergency generator plug ● Division 9 Signs ●

This table does not reflect all submittals but references specific information required in the following submittals.

Refer to Division 13 Environmental Quality Protection section of the specifications for environmental submittal requirements.

DIVISION 2 – SITEWORK

A. DESCRIPTION OF BIDDING SCHEDULE ITEMS:

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

Replacing and protecting existing gravel surfacing.

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

a. Completely removing disposing of concrete foundations designated on Existing Installation Drawings ODA 2007 and ODA 2015.

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

a. Excavations for foundations, structures and trenches.

b. Placing and compacting earth material and backfill.

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

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

e. Expansion anchors and adhesive anchors.

DIVISION 3 – CONCRETE

A. GENERAL:

1. MATERIAL:

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

b. Compressive Strength: 4000 psi minimum at 28-days

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

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

COR.

e. Class F fly ash is required to neutralize severe alkali or ASR reaction in accordance with ASTM C 311 (regarding test data), ASTM C 618 (regarding material), and Standard 3 – Concrete (regarding WAPA-specific requirements). Proposed concrete mix designs shall incorporate fly ash up to a maximum of 20 percent; minimum 28-day compressive strength shall be maintained in mix design.

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

3. REBAR DEVELOPMENT (LD) AND LAP LENGTH:

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

Drawing 01 2004-1 General Outline and Reinforcement Notes.

b. Typical closed circular tie lap splice lengths for drilled piers and columns, 4,000 – 4,500 psi normal weight concrete, unless noted otherwise, are 18-inches for #3 ties, 24-inches for #4 ties, and 30-inches for #5 ties.

B. DESCRIPTION OF BIDDING SCHEDULE ITEMS:

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

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

b. Concrete foundations for steel structures.

c. Concrete foundations for electrical equipment.

d. Concrete foundation for station service equipment including aluminum trench covers.

e. Casing auger excavations, if required.

f. Trial augering, if required.

g. Measurement for quantities for concrete foundations will be made on the basis of concrete quantities shown on Drawing ODA 2018.

2. Bidding Schedule item “Cable trench” includes providing precast concrete cable trench, complete with contoured gravel surface to support cables, aluminum covers and patching existing trench wall as shown on ODA 2500.

3. Bidding Schedule item “Concrete pull boxes” includes providing and installing precast concrete pull boxes, complete with gravel-fill, covers, pulling eyes, protection bollards, and other accessories as shown on Drawings ODA 1730 and ODA 1731.

4. Bidding Schedule item “Concrete encasement” includes installing a 3-inch envelope of concrete around medium voltage conduits as indicated on ODA 1720. The encasement shall include a minimum of 3000 psi concrete with a maximum 3/4-inch) aggregate, a 3-inch envelope of concrete surrounding all conduits and vibrated or carefully spaded to eliminate voids. Do not use power-driven agitating equipment unless specifically designed for duct-bank application.

Conduit supports shall be placed close enough to prevent sagging and deforming of ducts, with not less than five (5) spacers per 20-feet of duct. Secure supports to earth and to ducts to prevent floating during concreting. Do not use tie wires or reinforcing steel that may form conductive or magnetic loops around ducts or duct groups and do not allow a heavy mass of concrete to fall directly onto ducts. This bidding item is for concrete encasement only, conduits shall be included with associated electrical equipment and material bidding item.

Install concrete encased conduit at least 24-inches below finished grade in areas not subject to deliberate traffic, and at least 30-inches below finished grade in deliberate traffic paths for vehicles, unless otherwise indicated.

DIVISION 4 – SUBSTATION METALWORK

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. Two (2) – Bus Frames - Type III.

b. One (1) – Bus Frame - Type IV.

c. Two (2) – Bus Pole - Type II.

d. One (1) – Single Switch Platform – Type I including grating.

e. Three (3) – Equipment Cabinet Platform – Type V including grating.

f. One (1) – Station Service Equipment Support Frame.

g. One (1) – Safety switch Support Frame.

h. Three (3) – Surge arrester Equipment Support.

Structures listed above require approval drawings.

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

DIVISION 9 – SUBSTATION - ELECTRICAL

A. GENERAL: Electrical equipment and material shall be as specified in Western’s “WAPA ES” Standard Equipment Specifications, as shown on project drawings and in accordance with NEMA, ANSI, IEEE, ICEA, ASTM, NEC, NESC, UL and Federal specifications and standards as applicable.

Applicable requirements shall be met under the following service conditions:

Ambient Temperatures:

Maximum ........................................................................................... +40°C Maximum 24-Hour Average .............................................................. +30°C Minimum ............................................................................................. -30°C

Elevation:

Above Mean Sea Level ................................................................. 490-Feet

*ASCE-7 Wind Load:

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

*IEEE 693 Seismic Qualification High

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

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

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

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

c. Furnishing equipment and material not furnished by WAPA

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

Contractor and shall include the following:

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

b. Furnishing equipment and material not furnished by WAPA.

c. Installing bidding schedule items as shown on drawings.

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

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

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

Standards 9 and 12 respectively.

1. Bidding Schedule item “Station service voltage transformer, 230-kV, 333-kVA (Government furnished)” includes furnishing all equipment and material not furnished by WAPA and installing the Government-furnished station service voltage transformers with support structures:

DESIGNATION KY21A

Type Station Service Voltage Transformer

Nominal Voltage Rating (kV) 230 / 132.8 Gnd Y

Maximum Voltage Rating (kV) 245

Basic Impulse Level (kV) 900 Primary Power Winding Voltage (kV) 132.8

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

Secondary Power Winding Voltage (single-phase, 3-wire) 480 V

Capacity (kVA) 333

One (1) minute Emergency Over Voltage Operation 125 percent

Mounting Base

The equipment supplier is responsible for unloading the station service voltage transformers.

Contractor personnel shall inspect the transformers for possible damage during shipment or transportation and report any damage to WAPA’s COR.

2. Bidding Schedule item” Motor-operated disconnecting switch 230-kV, 2,000 amps with whips” includes providing the following disconnecting switch as shown on the Drawings and in accordance with WAPA ES 8.1 equipment standard and providing associated support structures:

DESIGNATION WY21A

Type 3 pole, single throw, outdoor, motor group operated, vertical break, rotating insulator

System Nominal Voltage Rating (kV) 230

Model Southern States EV2 or equal

Rated Maximum Voltage (kV) 245

Basic Impulse Insulation Level (kV) 900

DESIGNATION WY21A

Continuous Current Rating (Amps) 2,000

Short-Time (3 seconds) Symmetrical Current Rating (kA)

Peak Withstand Current (kA @ 60Hz) 164

Grounding Blades No

Arcing Horns Whip type

Switch Operator Type Motor Operator

Phase Spacing (feet) 12-0

Height of Support Structure (feet) 8-6*

Mounting Position Horizontal

Insulator Technical Reference No. 304

Control Circuit Voltage 125VDC

Auxiliary Switch Connected to the operating mechanism

Key Interlock None

Minimum whip interrupting capability 2 amps

* Approximate mounting height.

The motor operator cabinet shall be large enough to accommodate two (2) 3-inch conduits from the bottom.

Disconnecting switches and associated support structure shall be qualified to operate under service conditions specified in paragraph A. General and as follows:

*IEEE 693 Seismic Qualification High

*May include support structure] in accordance with STANDARD 9.1.1.2. Wind load per paragraph A. General and seismic loads are nonsimultaneous.

3. Bidding Schedule item “Surge arrester, 192kV Duty Cycle, 152-kV MCOV” includes providing the following disconnecting switch as shown on the Drawings and in accordance with WAPA ES 9.1 equipment standard and providing associated support structures:

DESIGNATION AY21A1, AY21A2, AY21A3

Class Station

System kV (L-L) 230

Duty Cycle Voltage (kV) 192

MCOV 152

4. Bidding Schedule item “Free-standing automatic transfer switch, 480V, 1200 amps, three-phase” includes providing outdoor automatic transfer switch Emerson Network Power ASCO H7ATSB31200NGXV, with accessories 44A and 135L or equal as shown on the Drawings and in accordance with WAPA ES 2.3.6 Equipment Standards:

DESIGNATION ATS

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

Required Voltage Rating 480 V

Enclosure Type 3RX Outdoor

Transition type Contactor based

Source continuous current rating (amps) 1200

Momentary current 10 cycle Asym, (kA) 65

Operation type Open (break before make)

Poles 4

Switched neutral Yes

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

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

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

ATS.

d. The power meter must be able to transmit voltage, frequency, current, switch position and source availability via Modbus protocol.

e. The power meter shall include provisions for RS485 interface capable of external Modbus RTU communication.

f. The transfer switch shall display source availability and switch position indicators.

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

5. Bidding Schedule item “Station service transformer” includes providing station service transformer in accordance with WAPA ES 2.1 Equipment Standard:

DESIGNATION KZ31A

Type

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

Voltage Rating 34.5kV delta to

480/277-V grounded wye

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

Capacity (kVA) 1000

Impedance (minimum) 5.75% Z Number of High-Voltage Bushing Wells 6

Number of Low-Voltage Bushings with NEMA Pads 4

High-Voltage BIL (kV) 150

Low-Voltage BIL (kV) 30

Primary side fuse No

* Envirotemp FR3 or equal.

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

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

c. For transformer KZ31A supply the following accessories:

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

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

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

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

(5) Three (3) 36-kV Class metal oxide varistor (MOV) surge arresters with mating 200-amp loadbreak elbow interface.

6. Bidding Schedule item “Temporary 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, as shown on the Drawings. Temporary cables shall run from FZ31A to KZ31A and shall be adequately protected from damage during construction.

Cable runs are 3-phase.

7. 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, as shown on the Drawings. Cables shall run from FZ31A to KZ31A as shown on drawings. Cable runs are 3-phase.

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

9. Bidding Schedule item “500 kcmil shielded 600V insulated conductors” includes providing shielded 500 kcmil insulated copper conductors, either single or multiconductor. Shielding shall be as described in Section 9.2.3.2(5)3) of the construction standards.

10. Bidding Schedule item “Shielded Insulated conductors” includes providing shielded, insulated, 600 volt conductors and cables including control cables, communication cables, and power cables. Power conductors shall be shielded as described in Section 9.2.3.2(5)3) of the construction standards. Control cables shall be shielded as described in Section 9.2.3.2(6)5) of the construction standards. RTU communication cable shall be shielded as described in item 16 below. Splicing of existing cables will not be allowed except with the approval of the COR.

The temporary 35 kv cables are to be included in bid schedule item "Tempory 1/0 AWG, 35 kv, insulated copper cable". 1/0 AWG 35 kv insulated copper cable shall be included in bid schedule item "1/0 AWG 35 kv, insulated copper cable" The shielded 500 kcmil cables are to be included in bid schedule "Shielded 500 kcmil 600 V insulated conductors".

11. Bidding Schedule item “Outdoor AC main distribution panelboard” includes providing outdoor mounted AC distribution board system DZA as shown on Drawing ODA 1600.

Panelboard shall be Square D I-Line or equal and shall have three (3) flat bus bars stacked and aligned vertically with glass reinforced polyester insulators laminated between phases. The molded polyester insulators shall support and provide phase isolation to the entire length of bus.

Distribution panelboard DZA shall include a “ground return” ground fault detection scheme. This shall consist of a main circuit breaker capable of remote trip from an included ground fault sensor located on the neutral ground bond as shown on Drawing ODA 1600. The distribution panelboard enclosure shall be NEMA 4X and large enough to house branch circuit breakers and condensation heater as shown on Drawing ODA 1600 and shall be a minimum of 48-inches-wide by 86-inches-high. The distribution panelboard shall be in accordance with WAPA ES 2.3.3,

2.3.4 and 2.3.11 Equipment Standards. Provide Hoffman enclosure clamp assemblies #AFC412SS or equal in lieu of the standard NEMA 4X door clamps.

12. Bidding Schedule items “Furnishing 12/c No. 10 AWG control cable” includes furnishing

12/c No. 10 AWG control cable.

13. Bidding Schedule items “Furnishing 2/c No. 6 AWG control cable” includes furnishing 2/c No. 6 AWG control cable.

14. Bidding Schedule items “Installing 12/c No. 10 AWG control cable” includes 12/c No. 10

AWG control cable. Contractor shall install and terminate control cable in all outdoor equipment installed under this contract. WAPA will terminate control cable inside the control building.

Provide sufficient cable to allow termination on the highest terminal block of switchboard CHB5 shown on Drawing ODA 4007 of the control building.

15. Bidding Schedule items “Installing 2/c No. 6 AWG control cable” includes 2/c No. 6 AWG control cable. The Contractor shall install and terminate control cable in all outdoor equipment installed under this contract. WAPA will terminate control cable inside the control building.

Provide sufficient cable to allow termination plus 10-extra feet to the highest breaker of panelboard BHB1 shown on Drawing ODA 4007 of the control building.

16. Bidding Schedule items “Furnishing RS-485 communication cable” includes furnishing

RS 485 communication cable. RS-485 communication cable shall be direct burial, foil and braid shielded, CPE 2 pair #22 AWG cable, Belden catalog #3107DB or equal.

17. Bidding Schedule items “Installing RS-485 communication cable” includes installing

RS-485 communication cable. Contractor shall install communication cable and terminate at the ATS. WAPA will terminate the other end of the cable at the RTU inside the control building.

Provide sufficient cable to allow termination plus 10-extra feet to RTU No. 1 shown on Drawing ODA 4007 of the control building.

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

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

b. Substation Grounding System: Repair and 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). Due to ongoing copper theft problems, all new exposed ground wire shall be copper clad steel. NOTE: The included drawings and standards have not been revised to show this new requirement.

NOTE: Copper clad steel shown on drawings and standard drawings as 7 No. 5 shall be shall be 7 No. 4, or 19 No.8, in lieu of 7 No. 5. New cable trench grounding shall be two (2) 7 No. 4, or two 19 No. 8, copper-clad steel conductors in lieu of two 2/0 AWG copper conductor as indicated in WAPA Standard 9.2.1.2 (7) as shown on Drawing 31 1061. (For clarification, 7 No. 4 is seven individual number 4 conductors, stranded together to form a single conductor. 19 No. 8 is nineteen (19) individual number 8 conductors, stranded together to form a single conductor.)

c. Electrical 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 shown on Drawing 31 1006. All other 90 degree bends shall be rigid metal. All underground rigid metal conduits shall have half lapped 10 mil corrosion protection tape extending 6-inches above finished grade. A red or yellow polyethylene warning tape shall be installed directly above each conduit run and located 12-inches below finished grade. All conduits shall have sealing compound installed at both ends. Informational drawings and data are not required for this item.

d. Outdoor 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 shall 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.

A minimum of three (3) twenty-foot lengths of 4-inch tubular aluminum bus, ten (10) swage type couplers and proper tooling shall be kept on site throughout construction for emergency bus restoration. The existing bus work shall be cut in a manner that allows adequate length for the installation of swage type couplers for emergency and final installation. Final coupler fittings shall not be installed in the middle third of the span.

e. Junction Cabinet: Junction cabinet designated EZ21A shall be mounted using Unistrut and be NEMA type 4X in the location shown on the Drawings. The junction cabinet shall include 4-inch by 3/16-inch copper alloy C110000 bus bar mounted in the cabinet with standoff insulators. Cabinet’s dimensions and internal component arrangement is shown on Drawing ODA 1151.

f. Receptacles: Provide 120 volt power receptacles within a weatherproof receptacle box as shown on the Drawings.

g. Molded Case Circuit Breakers: The Contractor shall determine and provide panelboard matching molded case circuit breakers for the station service as shown on Drawing ODA 1600.

h. Cable Terminators: 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.

i. Riser Cable Supports: Support/secure 35-kV cables at existing conduit risers with ETCO

Multiplex Duct-Loc Plugs sized according to the conduit risers and the outside diameter of the conductors referenced in item 5 above.

j. Emergency Generator Plug: Provide 200A emergency generator plug Hubbell cat

# HBL5200RS1W or equal as shown on Drawing ODA 1600.

k. Equipment Identification Signs (31 1000) – Lettering on the signs shall be as shown on Drawing ODA 1102.

19. Bidding Schedule item “Existing outdoor electrical equipment and material” includes constructing a temporary storage facility to hold existing equipment containing PCB oil with 2 ppm or greater. The temporary storage facility shall be in accordance with the standards. Bidding Schedule item “Existing outdoor electrical equipment and material” also includes removal and disposal of existing electrical equipment and material.

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

(1) Pad mount transformer designated KZ31A.

(2) Unit substation designated DZA.

(3) 375KW Standby generator. Associated propane tank, curb stops and bollards.

(4) Substation control, power cables and conduit as designated on the Drawings.

Portions of cables in conduit, trench, and/or trays shall be removed and disposed of.

DIVISION 13 – ENVIRONMENTAL QUALITY PROTECTION

The Contractor shall comply with all Federal, state, and local environmental laws and the requirements set forth in WAPA Construction Standard 13 – Environmental Quality Protection:

https://www.wapa.gov/DoingBusiness/SellingToWestern/Documents/ConstructionStandard2016.pdf.

Specifically the Contractor will be required to provide the following. Final payment will be withheld until the referenced submittal, report or plan is received.

1. SUBMITTALS:

a. Spill Prevention Notification and Cleanup Plan (Plan): The Contractor will submit the Plan as described in Section 13.11.2, “Spill Prevention Notification and Cleanup 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 shall not relieve the Contractor of the responsibility for compliance with all Federal, State and Local regulations.

A template plan is available by request.

b. Oil Sample Results for Oil and Oil Filled Equipment: The contractor will submit oil samples and nameplate photos of all equipment slated for removal to WAPA Environment 30 days prior to the start of work or at the outage start if necessary.

c. Waste Profiles and Manifests: WAPA Environmental will manage waste profiles and manifests.

d. Permits: The Contractor will submit any required permits to the COR at least 14-days prior to the start of work. These permits include, but are not limited to:

(1) Air Permits and/or registrations for off-road or portable equipment to be utilized on the project.

(2) Air Permits, including the Authority to Construct and Permit to Operate for stationary equipment to be left on the jobsite.

The Contractor may consult with WAPA environment for assistance in preparing permit applications for equipment which will be owned by WAPA at project completion.

e. Recycled Materials Reporting: All materials generated from the project that can be recycled, will be recycled. Submit quantities of recycled materials listed in Section 13.7, “Recycled Materials Quantities” to the COR prior to submittal of final invoice. Record quantities of material by category that is salvaged, recycled, reused, or reprocessed, including:

(1) Transformers, Breakers, other electrical equipment (weight without oil).

(2) Oil: Amount in Gallons.

(3) Aluminum conductor – Steel Reinforced (ACSR): Weight in pounds or tons.

(4) Steel: Weight in pounds or tons.

(5) Aluminum: Weight in pounds or tons.

(6) Copper: Weight in pounds or tons.

(7) Other Metals: Weight in pounds or tons.

(8) Gravel, Asphalt, or Concrete: Weight in pounds or tons.

(9) Batteries: Weight in pounds.

(10) Wood construction material: Weight in pounds.

(11) Cardboard: Weight in pounds.

(12) Fluorescent Bulbs: Weight in pounds.

(13) Ballasts: Weight in pounds.

(14) Refrigerants and Ozone Depleting Substances.

(15) Certificates of Recycling for any of these materials from the Recycling Facility.

f. HAZARDOUS MATERIALS REPORTING: The Contractor will submit a list to WAPA Environment documenting the amount and location of oil and/or any other hazardous materials left on site at project completion. The purpose of this requirement is to enable the reporting of new materials/location in the hazardous materials business plans.

g. WASTES: Dispose or recycle waste material in accordance with applicable regulations and ordinances. In addition to the requirements of the Contract Clause “Cleaning Up”, remove all waste material from the construction site. No waste shall be left on WAPA property, right-of-way, or easement. Burning or burying of waste material is not permitted.

h. WASTE MATERIAL REPORTING: Submit quantities (pounds or metric tons) of all waste materials by category to the COR within 30-days of disposal and prior to submittal of final invoice. This information can come from weight tickets or from manifests. They should include the information requested below, including:

(1) Unregulated Wastes (i.e., trash): Volume in cubic yards or weight in pounds.

(2) Hazardous or Universal Wastes: Weight in pounds or gallons.

(3) Certificates of Disposal for any of these materials from the Disposal Facility

2. PREVENTION OF AIR POLLUTION:

a. GENERAL: The Contractor will manage the project in accordance with the Clean Air Act and California air quality regulations. The Contractor will submit valid air permits when required as described in the submittals section. The Contractor will be familiar with the National Ambient Air Quality Standards (NAAQS) attainment status at the project location, and employees working on the site will be familiar with how attainment status affects the project. In addition, the Contractor shall fulfill the conditions of any applicable locally prepared Environmental Impact Statements (EISs) or Environmental Assessments (EAs) conducted for the project under the National Environmental Protection Act (NEPA).

b. Heavy Equipment And Emissions Provisions: If the Contractor will be bringing a temporary emissions source onto the jobsite, either as heavy equipment to support project…