ATTCH_B-_SPECS_Amendment_000002.pdf

LONGTIN SUBSTATION

STAGE 02

AMENDMENT 000002

SECTION C

DESCRIPTION/SPECIFICATIONS

ARIZONA

CALIFORNI

A

SECTION C

DESCRIPTION/SPECIFICATIONS

LONGTIN SUBSTATION – STAGE 02

DIVISION 1 – GENERAL REQUIREMENTS

A. CONTRACT REQUIREMENT

B. DESCRIPTION OF WORK

C. DESCRIPTION OF BIDDING SCHEDULE ITEM

1. Bidding Schedule item “Mobilization and preparatory work”

D. COMMENCEMENT, PROSECUTION, AND COMPLETION OF WORK

1. Commencement and Completion

2. Submittal Approval Time

3. Commencement of Control Work

4. Outage Restrictions

5. Construction Schedule Restrictions

6. Maximum Available Fault Current

7. Typical Foundations for Government-Furnished Electrical Equipment

E. CONSTRUCTION PROGRAM

1. Submittal Time

2. Format and Detail

F. MATERIAL

1. Points of Delivery

2. Protection of Material

G. RIGHTS-OF-WAY

1. General

2. Access Easements

3. Work on the Right-of-Way

H. GEOLOGIC INVESTIGATIONS

I. ELECTRIC POWER FOR CONSTRUCTION PURPOSES

J. WATER FOR CONSTRUCTION PURPOSES

K. EXPLOSIVES AND BLASTING

L. SUBMITTALS

1. General

2. Approval Time

3. Addresses

DIVISION 2 – SITEWORK

A. DESCRIPTION OF BID ITEMS

1. Bidding Schedule item “Miscellaneous sitework”

2. Bidding Schedule item “Gravel surfacing”

3. Bidding Schedule item “Oil detention system”

4. Bidding Schedule item “Access road repair”

5. Bidding Schedule item “Removing existing transmission line”

6. 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. Curing

B. DESCRIPTION OF BID ITEMS

1. Bidding Schedule item “Concrete foundations”

2. Bidding Schedule item “Type “C” cable trench”

DIVISION 4 – SUBSTATION METALWORK AND TRANSMISSION LINE LATTICE STRUCTURES

A. GENERAL

1. Government-Furnished Drawings

2. Measurement

B. DESCRIPTION OF BID ITEMS

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

2. Bidding Schedule item “Modify steel lattice tower”

3. Bidding Schedule item “Transmission line lattice steel structures”

4. Bidding Schedule item “Concrete foundations, lattice steel footings”

C. GOVERNMENT-FURNISHED DRAWINGS

DIVISION 9 – SUBSTATION – ELECTRICAL

A. GENERAL

1. Bidding Schedule for Government-furnished items

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

B. DESCRIPTION OF BIDDING SCHEDULE ITEMS

1. Bidding Schedule item “Power transformer, 230-kV, 50 MVA, three-phase”

2. Bidding Schedule item “Connections to 230/69-kV, 100 MVA, three-phase power transformer”

3. Bidding Schedule item “Power circuit breaker, 230-kV, 3,000 amps (Government-furnished)” .. 28

4. Bidding Schedule item “Power circuit breaker, 69-kV, 2,000 amps (Government-furnished)”

5. Bidding Schedule items “Disconnecting switch, 230-kV, 2,000 amps (Government-furnished”, “Disconnecting switch, 230-kV, 2,000 amps, with ground blades (Government-furnished)” and “Disconnecting switch, 69-kV, 2,000 amps (Government-furnished)”

6. Bidding Schedule items “Coupling capacitor voltage transformer, 230-kV, single-phase (Government-furnished)” and “Coupling capacitor voltage transformer, 69-kV, single-phase (Government-furnished)”

7. Bidding Schedule item “Current transformer, 230-kV, single-phase (Government-furnished)”

8. Bidding Schedule item “Station service power voltage transformer, 69-kV, 167 kVA, single-phase (Government-furnished)”

9. Bidding Schedule item “Single-pole fuse disconnecting switch, 69-kV”

10. Bidding Schedule item “Single-pole fuse disconnecting switch, 25-kV”

11. Bidding Schedule item “Surge arrester, 69-kV, single-phase”

12. Bidding Schedule item “Pad mounted transformer, 25-kV, 167 kVA, single-phase”

13. Bidding Schedule item “Voltage transformer, 27.6-kV, 3 kVA, single-phase”

14. Bidding Schedule item “Resistor, 208 V single-phase”

15. Bidding Schedule item “Manual transfer switch”

16. Bidding Schedule item “Grounding system”

17. Bidding Schedule item “Bus system”

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

19. Bidding Schedule items “Furnishing 4/c No. 8 AWG control cable”, “Furnishing 5/c No. 10

AWG control cable” and “Furnishing 12/c No. 10 AWG control cable”

20. Bidding Schedule items “Installing 4/c No. 8 AWG control cable”, “Installing 5/c No. 10

AWG control cable” and “Installing 12/c No. 10 AWG control cable”

21. Bidding Schedule item “Vertical switchboard sections (5) CHA3 through CHA7

(Government-furnished)”

22. Bidding Schedule item “Control panels (3) for SWTC

(Government-furnished)”

23. Bidding Schedule item “AC and DC distribution panels”

24. Bidding Schedule item “Station battery system (Government-furnished)”

25. Bidding Schedule item “Station battery chargers (Government-furnished)”

26. Bidding Schedule item “Furnish and install fiber optics”

27. Bidding Schedule item “Bidding Schedule item “Furnish and install substation fiber optics””

DIVISION 10 – TRANSMISSION LINE ELECTRICAL

A. DESCRIPTION OF PROPOSAL ITEMS

1. Bidding Schedule item “Approach spans”

2. Bidding Schedule items “Furnishing and installing optical overhead ground wire assemblies”

3. Bidding Schedule item “Furnishing and installing one (1) 0.465-inch diameter, 48 fiber optical overhead ground wire”

4. Bidding Schedule item “Furnishing and installing optical splice enclosures”

5. Bidding Schedule item “Furnishing and installing spiral-type vibration dampers for

0.465-inch, 48 fiber optical overhead ground wire”

DIVISION 11 – SERVICE BUILDING

SECTION 01 00 00 – GENERAL

01 11 00 REQUIREMENTS

1. The Bidding Schedule item “Service building”

01 33 00 SUBMITTALS

1. General

2. Contractor Review

3. Procedures

4. Shop Drawings

5. Product Data

6. Installation Data

7. Samples

8. Certifications

9. Warranties

10. Maintenance Material

11. Testing Reports

12. Calculations

13. Project Record Ducuments

14. Maintenance Data

01 78 00 OPERATION AND MAINTENANCE DATA

1. General

2. Quality Assurance

3. Manual Format

4. Manual Content

5. Instruction of Western Personnel

6. Submittals

SECTION 03 00 00 – CONCRETE

03 30 00 CONCRETE

1. General

SECTION 03 00 00 – MASONRY

04 26 13 MASONRY VENEER

1. General

2. Submittals

3. Quality Assurance

4. Protection

5. Environmental Requirements

6. Materials

7. Preparation

8. Execution

9. Bracing of Masonry During Construction

10. Tolerances

11. Cleaning

SECTION 05 00 00 – METALS

05 12 00 STRUCTURAL STEEL

1. General Requirements

2. Quality Assurance

3. Submittals

4. Materials

5. Fabrication

6. Transportation, Handling, and Storage

7. Field Repairs

8. Erection

9. Quality Control

05 21 00 STEEL JOIST GIRDERS

1. General

2. System Description

3. Quality Assurance

4. Submittals

5. Materials

6. Fabrication

7. Transportation, Storage, and Handling

8. Field Repairs

9. Erection

10. Field Primer and Painting

05 31 00 STEEL DECK

1. General

2. System Description

3. Quality Assurance

4. Submittals

5. Materials

6. Fabrication

7. Transportation, Storage, and Handling

8. Field Repairs

9. Execution

10. Touchup Paint

11. Painting

05 40 00 COLD-FORMED METAL FRAMING

1. General

2. Quality Assurance

3. Submittals

4. Materials

5. Fabrication

6. Erection

05 50 13 MISCELLANEOUS METALS

1. General

2. Submittals

3. Materials

4. Fabrication

5. Preparation

6. Execution

7. Schedule

SECTION 07 00 00 – THERMAL AND MOISTURE PROTECTION

07 22 00 ROOF AND DECK INSULATION

1. General

2. Submittals

3. Materials

4. Preparation

5. Execution

07 27 00 BUILDING AIR BARRIER SYSTEM

1. General

2. Submittals

3. Materials

4. Installation

07 41 13 METAL ROOF PANELS

1. General

2. Submittals

3. Performance

4. Materials

5. Execution

07 42 13 METAL SOFFIT AND SIDING PANELS

1. General

2. Submittals

3. Materials

4. Execution

5. Repairs

6. Painting

07 57 13 SPRAYED POLYURETHANE FOAM

1. General

2. Submittals

3. Materials

4. Installation

5. Cleanup

07 92 00 JOINT SEALANTS

1. General

2. Submittals

3. Quality Assurance

4. Materials

5. Execution

6. Schedule

SECTION 08 00 00 – OPENINGS

08 11 00 METAL DOORS AND FRAMES

1. General

2. Submittals

3. Product Handling and Protection

4. Quality Assurance

5. Materials

6. Fabrication

7. Execution

8. Field Painting

9. Adjustment

08 71 00 DOOR HARDWARE

1. General

2. Submittals

3. Materials

4. Installation

SECTION 09 00 00 – FINISHES

09 29 00 GYPSUM WALLBOARD SYSTEMS

1. General

2. Submittals

3. Material Storage

4. Environmental Requirements

5. Materials

6. Installation

7. Painting

23 00 00 HEATING, VENTILATING AND AIR-CONDITIONING

23 02 00 BASIC MECHANICAL MATERIALS AND METHODS

1. General

23 05 93 TESTING, ADJUSTING AND BALANCING

1. General

23 30 00 DUCTWORK

1. General

2. Products

3. Execution

23 33 00 CONTROL DAMPER

1. General

2. Products

3. Execution

23 74 00 PACKAGED HEAT PUMP SYSTEM

1. General

2. Products

3. Execution

23 81 00 HAZARDOUS DUTY AIR CONDITIONING

1. General

2. Products

3. Execution

23 82 00 VENTILATION AND EXHAUST

1. General

2. Products

3. Execution

26 00 00 ELECTRICAL

1. General

26 05 00 COMMON WORK RESULTS FOR ELECTRICAL

1. General

2. Drawings

3. Submittals

4. Cutting and Patching

5. Painting

6. Acceptance Demonstration

7. Cleanup

26 05 19 LOW VOLTAGE ELECTRICAL POWER CONDUCTORS AND CABLES

1. General

2. Materials

3. Installation

26 05 26 GROUNDING AND BONDING FOR ELECTRICAL SYSTEMS

1. General

2. Materials

3. Installation

26 05 53 IDENTIFICATION FOR ELECTRICAL SYSTEMS

1. General

26 05 83 WIRING CONNECTIONS

1. General

2. Mounted Height

26 05 83 01 DISCONNECT SWITCHES

1. General

2. Materials

3. Installation

26 05 83 02 SAFETY SWITCHES

1. General

2. Materials

3. Installation

26 05 83 03 INTRUSION ALARM SWITCHES

1. General

2. Materials

3. Installation

26 06 20.16 ELECTRICAL PANELBOARD SCHEDULE

1. General

26 06 20 23 ELECTRICAL CIRCUIT SCHEDULE

1. General

26 06 20.26 WIRING DEVICE SCHEDULE

1. General

26 06 50.16 LIGHTING FIXTURE SCHEDULE

1. General

26 09 23 LIGHTING CONTROL DEVICES

1. Light Switches

20 09 36 13 MODULAR DIMMING CONTROLS

1. Manual Dimming

26 24 00.16 PANELBOARDS

1. Panelboards DHB, DHC

26 27 26 WIRING DEVICES

1. Receptacles

2. Cover Plates

3. Miniature Circuit Breakers

26 51 13 INTERIOR LIGHTING FIXTURES, LAMPS AND BALLASTS

1. General

2. Materials

3. LED Ballasts

4. Dimmers

5. Installation

26 52 00 EMERGENCY LIGHTING

1. Materials

2. Installation

26 53 00 EXIT SIGN

1. Materials

2. Installation

26 54 00 CLASSIFIED LOCATION LIGHTING

1. General

26 54 00.01 BATTERY ROOM LIGHTING

1. Materials

2. Installation

26 54 00.02 BATTERY ROOM EXIT SIGN AND EMERGENCY LIGHTS

1. Materials

2. Installation

26 56 00 EXTERIOR LIGHTING

1. General

2. Installation

DIVISION 13 – ENVIRONMENTAL QUALITY PROTECTION

A. DESCRIPTION OF BID ITEMS

1. Bidding Schedule does not contain separate items

B. CONTRACTOR FURNISHED DATA

1. Recycled Materials Quantity Report

2. Waste Material Quantity Report

3. Spill Prevention Notification and Cleanup Plan (Plan)

4. Tanker Oil Spill Prevention and Response Plan

5. Water Pollution Permits

6. PCB Test Report

7. Oil and Oil-Filled Electrical Equipment Receipt

8. OSHA PCB Training Records

9. Cleanup Work Management Plan

10. Post Cleanup Report

SECTION 13.2 – ENVIRONMENTAL REQUIREMENTS

SECTION 13.3 – LANDSCAPE PRESERVATION

1. General

2. Construction Facilities

SECTION 13.4 – PRESERVATION OF CULTURAL AND PALEONTOLOGICAL RESOURCES

1. General

2. Known Cultural or Paleontological Sites

3. Unknown Cultural or Paleontological Sites

SECTION 13.5 – NOXIOUS WEED CONTROL

SECTION 13.6 – RECYCLED MATERIALS QUANTITIES

1. General

SECTION 13.7 – USE OD RECOVERED MATERIAL AND BIOBASED MATERIAL PRODUCTS

1. Recovered Material Products

2. Biobased Material Products

3. Recovered Material and Biobased Material Products Report

SECTION 13.8 – DISPOSAL OF WASTE MATERIAL

1. General

2. Hazardous, Universal, and Non-Hazardous Wastes

3. Used Oil

4. Recyclable Materials

5. Refrigerants and Receipts

6. Halons

7. Sulfur Hexafluoride (SF6)

8. Waste Material Quantity Report

SECTION 13.9 – CONTRACTOR’S LIABILITY FOR REGULATED MATERIAL INCIDENTS

1. General

2. Supervision

SECTION 13.10 – POLLUTANT SPILL PREVENTION, NOTIFICATION, AND CLEANUP

1. General

2. Spill Prevention Notification and Cleanup Plan (Plan)

3. Tanker Oil Spill Prevention and Response Plan

SECTION 13.13 – PREVENTION OF AIR POLLUTION

1. General

2. Machinery Air Emissions

3. Dust Abatement

4. Sulfur Hexafluoride Emissions

5. Contractor Field Quality Testing and SF6 Handling

6. Certificates of Disposal and Receipts

SECTION 13.16 – PREVENTION IF WATER POLLUTION

1. General

2. Permits

3. Excavated Material and Other Contaminant Sources

4. Management of Waste Concrete or Washing of Concrete Trucks

5. Stream Crossings

SECTION 13.17 – TESTING, DRAINING, REMOVAL, AND DISPOSAL OF OIL-FILLED

ELECTRICAL EQUIPMENT

1. Sampling and Testing of Insulating Oil for PCB Content

2. PCB Test Report

3. Oil Containing PCB

4. Removal and Disposal of Insulating Oil and Oil-Filled Electrical Equipment

5. Oil and Oil-Filled Electrical Equipment Receipt

SECTION 13.18 – REMOVAL OF OIL-CONTAMINATED MATERIAL

1. General

2. Cleanup Work Management Plan

3. Excavation and Cleanup

4. Temporary Stockpiling

5. Sampling and Testing

6. Transportation and Disposal of Contaminated Material

7. Post Cleanup Report

SECTION 13.19 – CONSERVATION OF NATURAL RESOURCES

1. General

2. Known Occurrence of Protected Species or Habitat

3. Unknown Occurrence of Protected Species or Habitat

DIVISION 1 – GENERAL REQUIREMENTS

A. CONTRACT REQUIREMENT:

Construct and complete Longtin Substation, Stage 02, in accordance with the Construction Contract (Standard Form 1442); the Contract Clauses; Western Construction Standards, including Standard 1 – General Requirements (July 2009), Standard 2 – Sitework (July 2009), Standard 3 – Concrete (July 2009), Standard 4 – Substation Metalwork and Transmission Line Lattice Structures (July 2009), Standard 9 – Substation – Electrical (July 2009), Standard 10 – Transmission Line – Electrical (March 2010), Standard 12 – Painting (July 2009), Standard 13 – Environmental Quality Protection (July 2009), Standard 15 Drawings (July 2009), 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 standard specifications. Some paragraphs in the standard specifications will not apply to this job.

Western Construction Standards, Standard Drawings, and Electrical Equipment Standards are available at http://www.wapa.gov/business/buys.htm.

Western 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 work include disassembling, moving and reassembling a 230/69-kV power transformer. Installing Government-furnished equipment (GFE): 240-V oil pumps and fans for power transformer LT-T202, 230-kV and 69-kV power circuit breakers, 230-kV and 69-kV disconnecting switches, 230-kV and 69-kV coupling capacitor voltage transformers, 230-kV current transformers, 69-kV station service power voltage transformer, vertical switchboard sections, HMI/RTU panel, communication rack, station battery and battery chargers. Providing electrical equipment: 69-kV and 25-kV fuse disconnecting switches, 69-kV surge arrester, 25-kV pad mounted transformer, 27.6-kV voltage transformers, power resistor, manual transfer switch, safety switches, AC and DC panelboards. Providing grounding system, bus system, conduit system, insulated conductors and cables, fiber optics, terminal boxes, outdoor lighting units and substation signs. Providing foundations and anchor bolts for substation structures, electrical equipment and material. Performing site work. Providing galvanized steel, cable trench, gravel surfacing, and oil containment facilities. Constructing a site built service building complete with electrical and mechanical systems. Providing approach spans with lattice steel structures. Providing OPGW from Longtin Substation to Topock Substation.

Paragraphs “Description of Bidding Schedule Items” in Divisions – 1, 2, 3, 4, 9, 10 and 11 describe the work to be performed.

The work is located near Bullhead City, AZ, in Mohave County as shown on drawings LNG 0015, DAD 0015, and TOP 0015.

C. DESCRIPTION OF BIDDING SCHEDULE ITEM:

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

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

b. Providing a Construction Program and a Safety and Health Program.

c. Provide Conex or equivalent storage “One-trip” type of unit (20-feet by 8-feet by

8-foot 6-inches) for Western material to be located as approved by the COR. Unit shall have double doors at each end of the container.

d. Providing a jobsite office trailer and the items listed below. Prior to any jobsite work, the

Contractor shall provide the office trailer for the exclusive use of Western.

(1) Relocation: If the Contractor changes the location of his office during the term of the contract, then the Contractor shall also move the mobile office trailer provided for Western, simultaneously with the transportation of his own unit.

(2) Installation: Install anchors and tie-downs for the trailer complying with local, State and Federal regulations. The office trailer shall be grounded. Entry points to the trailer shall be provided with stairways complying with OSHA (29 C.F.R 1926.1052).

(3) Office Space Requirements:

(a) Size and Arrangement: At least 250-square-feet (minimum) consisting of two (2) separate rooms (one (1) office and one (1) larger workroom).

(b) Heating and Cooling: Heating and cooling unit sized to provide adequate heating and cooling for climate in Bullhead City, AZ.

(c) Lighting and Electrical: Adequate lighting and 110 V electrical outlets.

(d) Utilities: Make all arrangements and pay all costs for providing utilities, including potable drinking water, electrical power, and heating and cooling energy.

(e) Toilet Facilities: Toilet facilities shall be provided in the immediate vicinity of the office and shall be maintained.

(4) Emergency Equipment: Provide and maintain the following emergency equipment:

(a) First aid kit by Affirmed Medical, Inc., Model No. 3503, or equal. Mount to the wall inside the workroom.

(b) Dry chemical fire extinguishers, classified 4-A:60-B:C, one (1) to be located inside each entrance to the trailer.

(5) Window Coverings: Provide adjustable mini-blinds.

(6) Office Furniture: Provide good quality, fully functional, office furniture as follows:

QUANTITY DESCRIPTION

5 Folding Office Chairs

1 Office Desk (30” x 60” minimum)

2 Office Tables (30” x 60” minimum)

1 Five-drawer file cabinet

1 Bookcase (30” x 13" x 48”)

12 “Plan Hold” binders No. 1CB-24 (including one (1) plan rack)

D. COMMENCEMENT, PROSECUTION, AND COMPLETION OF WORK:

1. COMMENCEMENT AND COMPLETION: Begin work within 10-calendar days after date of receipt of Notice to Proceed.

2. SUBMITTAL APPROVAL TIME: Except as otherwise provided for specific submittals, Western will require 30-calendar days for review of drawings or data submitted for approval.

3. COMMENCEMENT OF CONTROL WORK: Do not perform any control board or outdoor equipment wiring until receipt of Government-furnished wiring diagrams. Western will furnish outdoor wiring diagrams, schematics diagrams, control board wiring diagrams and RTU interface rack wiring diagrams no later than 20-calendar days after the delivery of the control boards. Include these restrictions in the construction program.

4. OUTAGE RESTRICTIONS: In addition to the restrictions listed in the construction standards, the following outage restrictions shall apply:

a. No outages are allowed on the Davis-Topock No. 2, 230-kV transmission line.

b. Only two (2) outages will be allowed on the Davis-Topock No. 1 230-kV transmission line:

(1) One (1) continuous, 5-day outage between October 1, 2013 and December 1, 2013.

(2) One (1) continuous, 60-day outage from January 2, 2014 through March 1, 2014.

c. Only one (1) continuous, 5-day outage will be allowed at Davis Substation on transformer

KY7A, between October 1, 2013 and November 1, 2013.

5. CONSTRUCTION SCHEDULE RESTRICTIONS: The following construction schedule restrictions shall apply:

a. The transformer shall be relocated from Davis Substation to Longtin Substation by

NLT November 1, 2013.

b. All lattice structure foundations shall be installed by NLT December 1, 2013.

c. The substation and control building (including control board installation and cabling to all equipment) shall be complete and ready for Western commissioning work by NLT January 2, 2014.

d. All lattice steel structures shall be installed and approach spans strung into the

230-kV yard by NLT January 20, 2014.

e. The fiber optic overhead ground wire and fiber duct cable shall be installed and tested by NLT February 10, 2014.

6. MAXIMUM AVAILABLE FAULT CURRENT: When protective ground leads are required, the protective ground leads shall be sized to carry the maximum available fault current in accordance with the Standard 1 – General Requirements, Section 1.4 “Safety and Health” and the following:

a. Longtin Substation:

(1) The maximum available fault current in the 230-kV area is 11,100 amperes.

(2) The maximum available fault current in the 69-kV area is 8,400 amperes.

(3) The maximum available fault current in the 24.9-kV area is 4,200 amperes.

b. Davis Switchyard:

(1) The maximum available fault current in the 230/69-kV transformer area is 16,200 amperes.

c. Topock Substation:

(1) The maximum available fault current in the 230-kV area is 15,000 amperes.

7. TYPICAL FOUNDATIONS FOR GOVERNMENT-FURNISHED ELECTRICAL EQUIPMENT:

Typical foundations are shown on the drawings. Western will design these foundations after receipt of informational drawings and data from the equipment manufacturer. Western will forward revised construction drawings for these foundations no later than 30-days prior to the “NLT” delivery date listed in the, “Material” section. If the “NLT” delivery date is adjusted by Western, forwarding of revised foundation construction drawings will be automatically adjusted in a like manner.

E. CONSTRUCTION PROGRAM:

1. SUBMITTAL TIME: Submit a construction program to the COR within 30-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 Western as listed below:

ITEM

ESTIMATED

WEIGHT (LBS)

ESTIMATED

DELIVERY DATE

ESTIMATED

COST

1. Two (2), 240-volt, single-phase, transformer oil pump

100 ea

NST 11-1-13

NLT 11-16-13

$3,000 ea

2. Twenty-two (22), 240-volt, single-phase, transformer radiator fan

70 ea

NST 11-1-13

NLT 11-16-13

$800 ea

3. Six (6) 3-phase, power circuit breaker, 230-kV, 3,000 amp

12,200 ea

NST 6-2-2013

NLT 6-26-2013

$125,000 ea

4. Three (3) 3-phase, power circuit breaker, 69-kV, 2,000 amp

4,850 ea

NST 6-2-2013

NLT 6-26-2013

$62,000 ea

5. Disconnecting Switches:

a. Twelve (12) 3-phase, 230-kV, 2,000 amp disconnecting switch with support

b. Two (2) 3-phase, 230-kV, 2,000 amp disconnecting switch and ground blade with support

c. Nine (9) 3-phase, 72-kV, 2,000 amp disconnecting switch with support

8,000 ea

10,000 ea

5,000 ea

NST 10-4-13

NLT 10-25-13

$30,500 ea

$35,500 ea

$18,500 ea

6. Fourteen (14) single-phase coupling capacitor voltage transformer, 230-kV with support

1,000 ea

NST 10-4-13

$11,000 ea

ITEM

ESTIMATED

WEIGHT (LBS)

ESTIMATED

DELIVERY DATE

ESTIMATED

COST

7. Eight (8) single-phase coupling capacitor voltage transformer, 69-kV with support

700 ea

NST 10-4-13

NLT 10-25-13

$8,000 ea

8. Twelve (12) single-phase current transformer, 230-kV with support

1,200 ea

NST 10-4-13

NLT 10-25-13

$19,000 ea

9. One (1) single-phase power voltage transformer, 69-kV with support

2,500

NST 10-4-13

NLT 10-25-13

$50,000

10. Five (5) Vertical switchboard sections (CHA3 through CHA7)

1,000 ea

NST 10-24-13

NLT 11-14-13

$55,000 ea

11. Three (3) control panels for SWTC 1,000 ea

NST 10-24-13

NLT 11-14-13

$55,000 ea

12. One (1) 125 VDC station battery system (58 cells and rack)

150 cell

NST 11-5-13

NLT 11-19-13

$38,500

13. Two (2) station battery chargers – BHC1 and

BHC2

500 ea

NST 11-5-13

NLT 11-19-13

$20,000 ea

NST – No sooner than.

NLT – No later than.

1. POINTS OF DELIVERY: Material furnished by Western will be delivered to Longtin Substation.

The Contractor is responsible for moving Western-furnished material from temporary storage locations to final destinations.

2. PROTECTION OF MATERIAL: Provide climate controlled (minimum of 70 degrees Fahrenheit for 24-hours a day) indoor storage for items 8 through 10 above. Provide protection against the elements after being removed from indoor storage and before installation. Approximately 200-square-feet of indoor storage will be required.

G. RIGHTS-OF-WAY:

1. GENERAL: Orient construction methods and equipment to utilize Government-furnished rights-of-way or obtain additional temporary access without additional cost to Western.

2. ACCESS EASEMENTS: Western has acquired access easements from existing public roads to the transmission line and some off right-of-way access along the transmission line. This off right-of-way access route is to provide access to the transmission line structure sites not accessible by traveling the transmission line.

3. WORK ON THE RIGHT-OF-WAY:

a. General: Perform work on the rights-of-way necessary for access to or along the transmission line. Only that excavation, dozing, or blading that is absolutely necessary will be allowed. Excavation, dozing, and blading for ease of travel may only be performed after field review and approval by the COR. Unauthorized excavation, dozing, or blading shall immediately be repaired or Western will have the damage repaired and backcharge the Contractor for all costs involved.

b. Ease of Travel and Crane Landings: Excavation, dozing, or blading done for ease of travel on any easement or for crane landings shall be restored to the original contour of the land and shall be compacted to a dry density not less than the natural in-place dry density of the surrounding earth. The use of water may be required to obtain the required density. Topsoil shall be stockpiled and spread on cuts prior to completion of work.

H. GEOLOGIC INVESTIGATIONS:

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. A geotechnical report will be provided following contract award, upon request.

I. ELECTRIC POWER FOR CONSTRUCTION PURPOSES:

Until permanent power is available, provide temporary power to the service building to serve all building loads including HVAC, lighting, and station battery system. Provide temporary heating prior to beginning finish work, sufficient to keep the interior of the building at a minimum of 70 degrees Fahrenheit for 24-hours a day, until permanent heating is available.

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

J. WATER FOR CONSTRUCTION PURPOSES:

The Contractor shall 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. SUBMITTALS:

1. GENERAL: The Contractor shall furnish submittals as specified in the construction standards and the project specifications.

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

3. ADDRESSES: The Contractor shall transmit submittals to the following addresses:

a. COR:

Western Area Power Administration ATTN: G5600, Construction Manager 615 S. 43rd Avenue Phoenix, AZ 85009-5313

b. Civil Engineer:

ATTN: A7920, Supervisory Civil Engineer P.O. Box 281213 Lakewood, CO 80228-8213

c. Electrical Engineer:

ATTN: A7910, Supervisory Electrical Engineer

d. Controls Engineer:

ATTN: A7930, Supervisory Electrical Engineer

DIVISION 2 – SITEWORK

A. DESCRIPTION OF BID ITEMS:

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

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

2. Bidding Schedule item “Gravel surfacing” includes providing 6-inch-thick gravel surfacing as shown on drawings LNG 2050-1B, 2050-2B, 2051-2B, 2051-3, 2051-4A, 2052C, 2053C, 2054D, and 2055.

3. Bidding Schedule item “Oil detention system” includes furnishing and installing oil detention system for the transformers as shown on drawings LNG 2300C and LNG 2301C, complete with SorbWeb Plus absorptive pads system, sump pump pit, and other accessories. SorbWeb Plus system is to be installed in accordance with manufacturer’s instructions. Manufacturer contact information: (877)786-0624, www.sorbwebplus.com.

4. Bidding Schedule item “Access road repair” includes access road rehabilitation and construction should any of the access road become damaged during construction.

5. Bidding Schedule item “Removing existing transmission line” includes the following:

a. Removing electrical items, steel lattice towers, and removing or cutting off concrete footings. Locations described by station are on the existing Davis Dam-Parker Dam No. 1 230-kV transmission line. The existing Davis Dam-Parker Dam No. 1 230-kV transmission line is shown on existing plan and profile drawings DAD-PAD 1 4010 through DAD-PAD 1 4014. Items removed from the existing transmission line shall become the property of the Contractor, shall be removed promptly from the ROW, and may not be reinstalled in the new line, except for conductor, overhead ground wire, vibration dampers for conductor, and vibration dampers for overhead ground wire as described below.

b. Approximate quantities are listed in Tables 2-1 and 2-2. The Contractor shall determine the actual quantities to be removed and, regardless of the quantities removed, payment will only be made for the lump sum price bid in the Bidding Schedule.

c. Remove the conductor insulator assemblies, overhead ground wire, and overhead ground wire assembles, complete with accessories, listed in Table 2-1. The conductor insulator assemblies shall be removed from Station 758+00 (Structure No. 13/2) to Station 772+00 (Structure No. 13/3). The west overhead ground wire, overhead ground wire assemblies, and overhead ground wire accessories shall be removed from Station 772+00 (Structure No. 13/3) to Station 1149+71 (Take-Off Structure at Topock Substation).

TABLE 2-1 – ELECTRICAL ITEMS TO BE REMOVED

MATERIAL UNIT QUANTITY

Suspension Insulator Assemblies EA 6

1/2”, HS, 7-Strand Steel Overhead Ground Wire MI 7.1

3/8”, HS, 7-Strand Steel Overhead Ground Wire MI 0.2

Overhead Ground Wire Suspension Assemblies EA 28

Overhead Ground Wire Tension Assemblies EA 5

Vibration Dampers – OGW EA 32

d. Remove and reuse the conductor and overhead ground wire, complete with accessories listed in Table 2-2 from Station 758+00 (Structure No. 13/2) to Station 772+00 (Structure No. 13/3).

TABLE 2-2 – ELECTRICAL ITEMS TO BE REMOVED AND REUSED

MATERIAL UNIT QUANTITY

Three (3) 795 kmcil, ACCR, 26/7, “Drake/3M” Conductors MI 0.2

Two (2) 1/2-inch, HS, 7-Strand Steel Overhead Ground Wire MI 0.2

Vibration Dampers – Conductor – Approach Span LS

Vibration Dampers – Overhead Ground Wire – Approach Span LS

e. Remove steel lattice towers and remove or cut off the footings listed in Table 2-3.

TABLE 2-3 – STEEL LATTICE TOWERS TO BE REMOVE AND FOOTINGS

TO BE REMOVED OR CUT OFF

TOWER

TYPE

BODY

HEIGHT

(FT-IN)

STRUCTURE

NUMBER

EXISTING

STATION

LEG EXTENSION HEIGHT

(FT-IN)

SL 60 13/2 758+00 25-0

SL 60 13/3 772+00 20-0

f. Dismantle, handle, bundle, transport, and store the steel towers included in Table 2-3.

g. Drawings 43-29S-2200 and 2201 are included showing structure outline and member sizes. Type 29S are the same as type SL shown in Table 2-3 above. Drawing PAD-GNE-2009 shows the stem and pad foundation for these type 29S towers.

Manufacturer’s drawings can be furnished within 30-days following contract award.

6. 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 gravelfill for the Service Building and 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 on an approved landfill.

e. Expansion anchors and adhesive anchors.

f. Clearing as directed by the COR.

g. Grading for structure and tower sites and line clearance as directed by the COR.

h. Excavations for foundations.

i. Disposing of excavated material for foundations.

j. Metal or concrete culverts as directed by the COR.

k. Gravel blankets at or adjacent to structure and tower sites as directed by the COR.

l. Rip-rap.

m. Rock water crossings.

n. Permanent gates in existing barbed wire fences as directed by the COR.

o. Right-of-way restoration as directed by the COR.

DIVISION 3 – CONCRETE

A. GENERAL:

1. MATERIAL:

a. Cement: Type V cement according to ASTM C 150; if Type V cement is not readily available locally, a pozzolan additive may be used with Type I or II A cement to mitigate sulfate attack. Where severe alkali conditions exist, use Type V cement, otherwise use Type II A cement. Types are according to ASTM C 150.

b. Compressive Strength: 4000 psi at 28-days for substation and transmission line concrete.

c. Water-Cement Ratio: Net water-cement ratio, exclusive of water absorbed by the aggregates, shall not exceed 0.52 by weight.

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

COR.

e. Use of fly ash is required in concrete.

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

3. CURING: Exposed, formed surfaces of all concrete foundations shall be cured with water, resin-base curing compound without fugitive dye, or by covering with polyethylene film.

B. DESCRIPTION OF BID ITEMS:

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

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

b. Concrete foundations for substation steel structures.

c. Concrete foundations for electrical equipment.

d. Dewatering foundation excavations, if required.

e. Casing auger excavations, if required.

Measurement for quantities for concrete foundations will be made on the basis of concrete quantities shown on drawings LNG 2000. Regardless of the concrete quantities actually placed, payment will be based on the quantities of concrete shown on the drawing.

2. Bidding Schedule item “Type “C” cable trench” includes providing precast concrete Type C cable trench, vehicular crossings, complete with sandfill, concrete covers, and other accessories.

DIVISION 4 – SUBSTATION METALWORK AND TRANSMISSION LINE LATTICE STRUCTURES

1. GOVERNMENT-FURNISHED DRAWINGS: Except as listed below, existing shop drawings for steel structures are not available.

2. MEASUREMENT: Measurement for quantities for Bidding Schedule items “Steel structures, welded (galvanized)” will be made on the basis of black weights calculated in accordance with Load and Resistance Factor Design (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, are shown on the Government-furnished shop drawings and shall be shown on the Contractor-furnished final shop drawings, and payment will be based thereon. Steel estimated weights are shown on the specifications drawings for the structures requiring approval drawings as noted in the Bidding Schedule items “Steel structures, welded (galvanized)”.

B. DESCRIPTION OF BID ITEMS:

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

a. Two (2) – 230-kV Take-Off Structure Type I.

b. Two (2) – 69-kV Take-Off Structure Type II.

c. Two (2) – 230-kV Bus Tower Type I.

d. Two (2) – 230-kV Bus Tower Type II.

e. Four (4) – 65-foot Ground Mast – Type I.

f. One (1) – 230-kV Bus Frame Type III.

g. Six (6) – 230-kV Bus Frame Type IV.

h. Four (4) – 230-kV Bus Frame Type V.

i. Three (3) – 230-kV Bus Frame Type VI.

j. Nine (9) – 69-kV Bus Frame Type I.

k. Seven (7) – 69-kV Bus Frame Type II.

l. Four (4) – 230-kV Bus Tee Pole Type I.

m. Eleven (11) – 230-kV Bus Pole Type III.

n. Two (2) – 230-kV Bus Pole Type IV.

o. Fifteen (15) – 69-kV Bus Pole Type I.

p. Three (3) – 69-kV Bus Pole Type II.

q. One (1) – 69-kV Bus Pole Type V.

r. One (1) – 69-kV Surge Arrester Support Type I.

s. One (1) – 69-kV Fuse Disconnect Switch Support Type I.

t. One (1) – 25-kV Switch & Bus Support Type I.

u. One (1) – 27.6-kV Transformer Support Type I.

v. One (1) – Spare Bushing Rack.

w. Three (3) – Equipment cabinet platforms for the 69-kV circuit breakers including gratings, Type I, MK FR1 as shown on LNG 2925.

x. Six (6) – Equipment cabinet platforms for the 230-kV circuit breakers including gratings, Type II, MK FR2 as shown on LNG 2925.

y. Two (2) – Equipment cabinet platforms for the power transformers including gratings, Type III, MK FR3 as shown on LNG 2925.

z. Twenty-one (21) – Single-switch operating platforms including grating, Type I, MK FR1 as shown on drawing LNG 2926.

aa. Two (2) – Double-switch operating platforms including grating, Type II, MK FR2 as shown on drawing LNG 2926.

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

2. Bidding Schedule item “Modify steel lattice tower” includes providing the following:

a. Modifying steel lattice tower located at Structure No. 17/2 by adding one new OPGW plate as shown on drawing 43-27S 2203 to dead end the OPGW at this structure. The OPGW plate will replace the existing OGW plate. Structure 17/2 can handle a dead end load of up to 5000 pounds for installation of the dead end assembly on the tower. A dead end load is a load that is applied to one side of the tower with no load in the other direction. In order to pull this load the Contractor must pull at a location that is a minimum of three (3) times further than the height of the OPGW attachment, to minimize the vertical loading to the tower. This load only applies to one (1) OGW peak. All other OGW and Conductor attachment locations must be intact and have the same loads on both sides of the structure.

b. Steel materials shall be galvanized.

c. The wind speed shall be 30 miles per hour (mph) or less for modifying towers.

3. Bidding Schedule item “Transmission line lattice steel structures” includes providing the

a. Tower bodies, stub angles, and leg extensions listed in Table 4-1.

TABLE 4-1 – STEEL TOWERS

TYPE

BODY

HEIGHT

(FT-IN)

No.

BODIES

No.

STUBS

No. LEG EXTENSIONS

5’-0” 7’-6” 10’-0” 12’-6” 15’-0” 17’-6” 20’-0” 22’-6” 25’-0” 27’-6” 30’-0” 32’-6” 35’-0”

25T 70 2 8 4 4

Table 4-1 quantities are Western’s best estimate at this time. Western may change leg extension types as required by final survey data. Revised quantities will be furnished by the COR following contract award.

b. Measurement: Measurement for quantities will be lump sum for both complete structures.

(1) Tower body and leg extension weights, are shown on the Government-furnished drawings. Tower body and leg extension estimated weights are shown on specification drawings. Payment will be included in the lump sum amount for the structures.

(2) Stub angle unit weights are shown on these specification drawings. Payment will be included in the lump sum amount for the structures. Fabricate stub angles directly from the specification drawings.

4. Bidding Schedule item “Concrete foundations, lattice steel footings” includes providing the following:

a. Foundations as shown on drawings 43-25-2100 and 2101 for the type 25T tower. A typical drilled auger foundation is shown on drawings 43-25-2100, type VK (unbelled type).

There is no geologic data at the new or existing tower locations. The Contractor may obtain such data in helping determine the correct foundation for these two (2) structures.

The drawings are provided as a reference for the type that is normally required for these structures. The bore logs at the substation are included in the specification. These two (2) towers will require eight (8) foundations. The concrete will be in accordance with Division 3. Regardless of the concrete quantities actually placed, payment will be based on the quantities of concrete shown on drawings.

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

C. GOVERNMENT-FURNISHED DRAWINGS:

Western will furnish, within 30-days following contract award, one reproducible of bills of materials, shop detail, and erection drawings listed in Table 4- 2.

TABLE 4-2 – GOVERNMENT-FURNISHED DRAWINGS

NEW

NAME

ORIGINAL

TOWER

NAME

SHOP DRAWING FILE NUMBERS

25T TH 467MD-250-66,67,69,71-78,88,89, and 90

Table 4-2 drawings shall be used to fabricate material. Check drawings carefully, particularly with respect to possible exceptions from the Contractor’s standard notations and practice (such as allowance for extra length of bent members). The Contractor shall have complete responsibility for proper fit of members.

Fabricate stub angles directly from these specification drawings.

Prints of representative drawings are available for inspection from the Civil Engineer. Prints of erection drawings and bills of materials and a representative example of detail drawings will be furnished to prospective bidders upon request at $5.00 per print, nonrefundable.

DIVISION 9 – SUBSTATION – ELECTRICAL

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 ........................................................................................... +55C

Maximum 24-Hour Average .............................................................. +45C

Minimum ............................................................................................. -20C

Elevation:

Above Mean Sea Level .............................................................. 1,325-Feet

*ASCE-7 Wind Load:

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

*IEEE 693 Seismic Qualification:

Performance Level ....................................................................... Moderate

*Wind and seismic loads are nonsimultaneous.

1. Bidding Schedule for Government-furnished items require the Contract 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 Western.

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 Western.

c. Installing Bidding Schedule items as shown on drawings.

Installation and painting of electrical equipment and material shall be provided in accordance with Standards 9 and 12 respectively.

B. DESCRIPTION OF BIDDING SCHEDULE ITEMS:

1. Bidding Schedule item “Power transformer, 230-kV, 50 MVA, three-phase” includes furnishing equipment and material not furnished by Western and installing the following power transformer.

DESIGNATION LT-T202

Manufacturer Westinghouse

DESIGNATION LT-T202

Year of Manufacture 1968

Voltage Rating (kV) 230/69-24.9

BIL Rating (kV) 825/350-150

MVA Rating (MVA) 30/40/50-

8.3/11.066/13.833

Oil (gallons) 7300

Total Weight (including oil, LBS) 208,200

a. General: The Contractor shall be responsible for travel to David Switchyard, located near

Bullhead City, AZ, as shown on drawing DAD 0015, and transporting the existing 50 MVA transformer to Longtin Substation. The transformer is located on a concrete slab inside Davis Switchyard. The surge arresters, bushings, and radiators will need to be removed from the transformer and prepared for transport. The Contractor shall drain the transformer of oil and prepare the transformer for transport, including providing an impact recorder mounted on the transformer. The Contractor shall transport the transformer and all components including the oil to Longtin Substation. The Contractor shall analyze the results of the impact recorder, furnish impact recorder results to the COR and confirm that no damage to the transformer occurred during transport. The Contractor shall then reassemble the transformer, process the transformer oil as needed, test and verify the transformer is ready for normal operation. The Contractor shall provide all personnel, including erecting engineer, all equipment including cranes, rigging equipment, tractor trailers, truck transport, oil processing, test equipment, highway and road certificates as required, and all other material, equipment, or personnel as needed to complete the work.

b. Transformer disassembly: The work shall be accomplished under the guidance of an erecting engineer and shall include the following:

(1) The erecting engineer shall have experience with onsite disassembly, oil draining and pre-movement testing of large three-phase oil filled transformers rated a minimum of 50 MVA at 230-kV.

(2) Inspect transformer and furnish report of any problems found to the COR.

(3) Test transformer and furnish results to the COR.

(4) Drain oil into Contractor provided oil tanker trucks.

(5) Box and crate any disassembled or spare parts.

(6) Pressurize the transformer with dry air for shipment.

c. Transport of transformer oil and transformer components: The work shall be accomplished under the supervision of an erecting engineer and shall include the

(1) The erecting engineer shall have experience transporting large three-phase oil filled transformers rated a minimum of 50 MVA at 230-kV.

(2) The transformer oil shall be transported by tank trucks from Davis Switchyard to Longtin Substation.

(3) The transformer shall be loaded and transported from Davis Switchyard to Longtin Substation. The transportation system shall be approved by the COR. The request for approval shall include the states in which the vehicle will operate, the legal overall combination vehicle length, the maximum gross combination weight, the maximum allowable axle loading, the road ready chassis weight distribution, front and rear, and body and trailer weight.

(4) The Contractor shall install an impact recorder on the transformer and provide recorder data for the entire loading, transportation and unloading operation. The Contractor shall analyze the results and prepare a certified report and turn it over to the COR within 10-days after off loading the transformer.

(5) The Contractor shall off load the transformer at the Longtin Substation construction site, onto the concrete pad previously installed by others.

(6) Transport the transformer accessories, including any spare parts from Davis Switchyard to Longtin Substation.

d. Reassembly of the transformer: The work shall be accomplished under the supervision of an erecting engineer with experience assembling large oil filled transformers rated a minimum of 50 MVA at 230-kV and include the following:

(1) Mount all bushing turrets and reconnect current transformer wiring.

(2) Provide new gaskets and tape as required.

(3) Install bushings.

(4) Hang and brace radiator headers and associated radiators.

(5) Mount surge arresters.

(6) Mount miscellaneous items removed for shipment.

(7) Place any spare parts in the locations directed