21._Attachment_A_-_Sterling_Transformer_Replacement_Specifications.pdf

20 July 2015

Attachment A

Sterling Breaker Replacement Project Specifications

DE-SOL-0008721

SECTION C

STERLING SUBSTATION

115-kV BREAKER REPLACEMENT

Spec. No. 855

SECTION C

DESCRIPTION/SPECIFICATIONS

COLORADO

SECTION C

DESCRIPTIONS/SPECIFICATIONS

STERLING SUBSTATION

115-kV BREAKER REPLACEMENT

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 ............................................... Error! Bookmark not defined.

6. Maximum Available Fault Current

7. 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. SUBMITTALS

1. General

2. Submittal Response

3. Approval Time

DIVISION 2 – SITEWORK

A. DESCRIPTION OF BIDDING SCHEDULE ITEMS

1. Bidding Schedule item “Miscellaneous sitework”

2. 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 BIDDING SCHEDULE ITEM

1. Bidding Schedule item “Concrete foundations”

DIVISION 4 – SUBSTATION METALWORK

A. GENERAL

1. Government-furnished Drawings

2. Measurement

B. DESCRIPTION OF BIDDING SCHEDULE ITEM

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

DIVISION 9 – SUBSTATION – ELECTRICAL

A. GENERAL

1. Bidding Schedule for Government-furnished items

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

3. 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 “Power circuit breaker, 115-kV, 3000 amps (Government-furnished)”

2. Bidding Schedule items “Coupling capacitor voltage transformer, 115-kV, single phase”

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

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

5. Bidding Schedule items “Installing 5/c No. 10 AWG control cable” and “Installing 12/c

No. 10 AWG control cable”

6. Bidding Schedule item “Electrical testing”

DIVISION 13 – ENVIRONMENTAL QUALITY PROTECTION

A. DESCRIPTION OF BID ITEMS

1. Construction Standard 13 sections are included in Bidding Schedule item

“Environmental Quality Protection”:

STERLING SUBSTATION 115-kV BREAKER REPLACEMENT

DIVISION 1 – GENERAL REQUIREMENTS

A. CONTRACT REQUIREMENT:

Construct and complete Sterling Substation 115-kV Breaker Replacement, in accordance with the Construction Contract (Standard Form 1442); the Contract Clauses; Western’s Construction Standards, including Standard 1 – General Requirements (September 2013), Standard 2 – Sitework (September 2013), Standard 3 – Concrete (September 2013), Standard 4 – Substation Metalwork and Transmission Line Lattice Structures (September 2013), Standard 9 – Substation – Electrical (September 2013), Standard 12 – Painting (September 2013), Standard 13 – Environmental Quality Protection (September 2015), Standard 15 – Drawings (September 2013); 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.

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

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 replacing four 115-kV circuit breakers, furnish and install installing one (1) coupling capacitor voltage transformer, high voltage bus, grounding system, and conduit.

Paragraphs “Description of Bidding Schedule Items” in Divisions – 1, 2, 3, 4, 9, 12, and 13 describe the work to be performed.

The work is located near Sterling, CO, as shown on Drawing STG 0016.

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.

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, and complete all work within 360-calendar days from the date of receipt of such notice. Work schedule shall be coordinated with and approved by the Contracting Officer’s Representative (COR).

2. SUBMITTAL APPROVAL TIME: Except as otherwise provided for specific submittals, Western will require 20-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 and schematic diagrams no sooner than December 2015. Control board wiring and schematic diagrams will be furnished no sooner than December 2015. Include these restrictions in the Construction Program.

4. OUTAGE and CONSTRUCTION SCHEDULE RESTRICTIONS: In addition to the restrictions listed in Construction Standard 1, the following outage restrictions shall apply:

a. Breaker outages will not be approved prior to May 1st, 2016

b. Outages will approved for the installation of one breaker at a time

c. Each newly installed breaker will need two weeks for Western to complete commissioning prior to the Contractor commencing the next breaker

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

a. The maximum available fault current in the 115-kV area is 4,174 amps and the X/R ratio is

3.8.

b. A minimum of 1 – 1/0 grounds shall be used in the 115-kV area.

c. Protective Ground Leads: Each protective ground lead shall have a permanent identification tag with unique identification number, certified wire size, and test date. Each protective ground lead shall be tested complete with connectors, in accordance with ASTM F 2249. Protective ground leads shall be retested and recertified annually. A protective ground lead without an identification tag to relate it to the annual certification of that protective ground lead shall not be used. No protective ground lead shall be longer than 36-feet, unless approved by COR. Test results shall be submitted to the COR for approval prior to use of the grounds. When using the DC test method, the Contractor shall submit testing information in the format shown below in the Personal Protective Grounds Test Report. When using the AC test method, the Contractor shall submit testing information in accordance with the test set manufacturers recommendations.

Cable

ID

Cable Size

Cable Condition

Cable Length ASTM Resistance

(mΩ)

Measured Resistance

(mΩ) Pass/Fail

FT Inches

Tester’s Signature __________________________________

Test Temperature ______

Test Date _____________

6. TYPICAL FOUNDATIONS FOR CONTRACTOR-FURNISHED ELECTRICAL EQUIPMENT:

Typical foundations are shown on Drawing stg_2304. Regarding foundations noted as “design not firm”: Western 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 10-calendar days after date of Notice to Proceed.

2. FORMAT AND DETAIL: Dates for each item of Government-furnished material shall be provided. Do not program dates earlier than the estimated delivery dates shown in the “Material” paragraph.

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

ITEM

ESTIMATED

WEIGHT

(LBS)

ESTIMATED

DELIVERY

DATE

1. (4) 3-phase, power circuit breaker, 115-kV, 3000 amp 6,350 ea Onsite

NST – No sooner than.

NLT – No later than.

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

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

G. 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.

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.

Western 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 work site.

H. ELECTRIC POWER FOR CONSTRUCTION PURPOSES:

Electric power is located in the receptacles throughout the substation for Contractors use. The Contractor may furnish power for his operations by other means at no additional cost to Western.

Power made available by Western will be delivered as single-phase, 60 Hz, AC, at approximately 120 V. Coordinate 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. SUBMITTALS:

1. GENERAL: The Contractor shall furnish submittals and correspondence via email as specified in the Construction Standards and this Project Specification. Submittals and correspondence via email shall be in standard PDF or Electronic CAD “*.dwg” (AutoCAD 2010) formats. All submittals shall include the Western contract number (DE-WA000XXXX), Western project title, and Bidding Schedule Contract Line Item Number (CLIN) and applicable division number.

Multiple CLIN’s on a single submittal are not permitted. A cover transmittal letter in Microsoft Word or PDF format shall be included with each email. Email submittals shall be delivered to:

RMR-J5600-CS@wapa.gov.

2. SUBMITTAL RESPONSE: Western will return all submittals electronically with an “Approved” or “Not Approved” status with comments as appropriate to the email address where the submittal originated.

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

DIVISION 2 – SITEWORK

A. DESCRIPTION OF BIDDING SCHEDULE ITEMS:

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

a. Replacing and protecting existing gravel surfacing.

b. Removal and disposal of existing concrete foundations clouded on Drawing STG 2003 ei.

c. Removal and disposal of existing steel equipment platforms for the circuit breakers being removed.

d. Removal and disposal of the four (4) oil retention berms around the existing circuit breakers as shown in Drawing STG 2000b ei.

2. Bidding Schedule does not contain separate items for the following. Includes these items in applicable Bidding Schedule items.

a. Excavations for foundations, structures, or trenches.

b. Placing and compacting earth material and backfill.

c. 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.

d. Comply with all applicable environmental standards.

DIVISION 3 – CONCRETE

A. GENERAL:

1. MATERIAL: Refer to Construction Standard 3 for the mix design and the items listed below:

a. Cement: Type IIA cement in accordance with ASTM C 150.

b. Compressive Strength: 4000 psi 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 & D water-reducing and retarding admixtures may be used if approved by the

COR.

2. TEST FOR POTENTIAL REACTIVITY OF SAND AND COARSE AGGREGATE: Western may perform tests 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 BIDDING SCHEDULE ITEM:

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 steel structures.

c. Concrete foundations for electrical equipment.

d. Unwatering foundation excavations, if required.

e. Casing auger excavations.

Measurement for quantities for concrete foundations will be made on the basis of concrete quantities shown on Drawing STG 2002. Regardless of the concrete quantities actually placed, payment will be based on the quantities of concrete shown on the Drawing.

DIVISION 4 – SUBSTATION METALWORK

A. GENERAL:

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 LRFD, “AISC Code of Standard Practice for Steel Buildings and Bridges”, except that weights for nonrectangular shapes and plates are to be based on actual detailed dimensions.

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

B. DESCRIPTION OF BIDDING SCHEDULE ITEM:

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

a. One (1) 115-kV Equipment Support – Type V (see STG 2604).

b. One (1) 115-kV Bus Pole – Type X (see STG 2605).

c. Four (1) equipment cabinet platforms Type II, including grating for the Circuit Breakers (see STG 2926).

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

All above structures require approval drawings.

DIVISION 9 – SUBSTATION – ELECTRICAL

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

Applicable requirements shall be met under the following service conditions:

Ambient Temperatures:

Maximum ........................................................................................... +50°C Maximum 24-Hour Average .............................................................. +35°C Minimum ............................................................................................. -30°C

Elevation:

Above Mean Sea Level .............................................................. 3,924 Feet

*ASCE-7 Wind Load:

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

*IEEE Seismic Qualification: .......................................................................... Low

*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 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.

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 If tubular steel supports are furnished, they shall be galvanized internally and externally.

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

B. DESCRIPTION OF BIDDING SCHEDULE ITEMS:

1. Bidding Schedule item “Power circuit breaker, 115-kV, 3000 amps (Government-furnished)”:

DESIGNATION

JY1A, JY3A,

JY5A, JY6A

Manufacturer Mitsubishi

Model Number 100-SFMT-40HE-1

Type SF6 gas

Nominal Voltage Rating (kV) 115

Maximum Voltage Rating (kV) 123

Continuous Current (Amps) 3000

Estimated Weight of 3-pole Breaker 6,350

Approximate SF6 Gas Oil Weight (LBS) 61

The Contractor will unload the power circuit breakers from the truck, and Contractor personnel shall inspect the power circuit breakers for possible damage during shipment or transportation and report any damage to Western’s COR.

a. One (1) set of spare parts furnished with each voltage class of power circuit breaker will include but not be limited to the following:

(1) All sets of replaceable arcing contacts, both moving and stationary required for one (1) 3-pole breaker.

(2) One (1) complete bushing for tank-type breaker.

(3) One (1) complete set of porcelains for one stack unit for live-tank breaker.

(4) One (1) complete set of gaskets.

(5) One (1) trip coil and close coil.

2. Bidding Schedule items “Coupling capacitor voltage transformer, 115-kV, single phase” includes providing coupling capacitor voltage transformers in accordance with WAPA ES 6.3 equipment standard.

DESIGNATION

(SINGLE PHASE)

VY6A

Type Single-phase, outdoor, 60 Hz

Nominal System Voltage (kV) 115

Maximum System Voltage (kV) 123

Basic Impulse Insulation Level (kV) 550

Phase-to-Ground Withstand Voltage (kV) 70

Performance Reference Voltage (kV) 69

Primary to Secondary Ratios 600/1000:1 600/1000:1

ANSI Accuracy Rating 0.3% for M, W, X, Y, and Z

Total Output Rating (minimum VA)

Mounting Base

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

a. Substation Grounding System: Complete and test 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). Due to the ongoing copper theft problems, all new exposed ground wire shall be copper clad steel.

NOTE: that the included drawings and standards have not been revised to show this new requirement.

b. 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.

c. 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 may be compression type (DMC Power’s Bus and Cable Connectors and Swage System, AFL Swage system, or equal). Post insulators for new structures shall use industry standard 3, 5, or 7-inch base cap bolt circles in lieu of WAPA Standard 9.3.1.1.3.2 and Drawing 31 1081.

Replacement insulators shall match existing bolt circles. Insulators shall be ANSI 70 gray.

d. Insulated Conductors: Insulated conductors and cables except 5/c and 12/c No. 10 AWG control cable.

e. Gas Cart Receptacles: Providing gas cart receptacles with switched enclosure similar to Hubbell Switched Twist-Lock enclosure, catalog number SETL3 with NEMA L10-30R locking receptacle, 30 amp, 3-pole, 125/250 V, 3-wire without ground.

f. Terminal Boxes: Terminal boxes’ internal components arrangements shown on Drawings 31 1085 and 31 1086 are typical and the Contractor shall provide internal components for Option 1 Type A terminal box configuration. Actual internal arrangements will be determined by the COR.

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

h. Equipment Identification Signs (31 1000) – Lettering on the signs shall be as follows:

(1) FRENCHMAN CREEK LINE

STG 162

PCB JY1A 115-KV

(2) BEAVER CREEK LINE

STG 562

PCB JY3A 115-KV

(3) SIDNEY LINE

STG 662

PCB JY5A 115-KV

(4) TRANSFER BUS

STG 466

PCB JY6A 115-KV

(5) TRANSFER BUS CCVT VY6A3

EY6A

SECONDARY FUSES

4. 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, [disposal,] [modifying,] [and] [reinstalling] existing electrical equipment and material.

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

(1) Four (4) three-phase power circuit breakers designated JY1A, JY3A, JY5A, and

JY6A.

(2) Substation control, power cables, and conduit as designated on the Drawings. If direct buried, the portion that is buried underground shall be abandoned. Portions of cables in conduit, trench, and/or trays shall be removed and disposed of.

(3) Bus, insulators, connectors, and fittings.

b. The Contractor shall include any credit to the Government for salvage of the equipment above in this bid item.

5. Bidding Schedule items “Installing 5/c No. 10 AWG control cable” and “Installing 12/c No. 10 AWG control cable” include installing 5/c No. 10 and 12/c No. 10 AWG control cable respectively.

a. Each control cable shall be terminated by the contractor at the outdoor equipment in accordance with Western drawings. Western will terminate the control cables at the control panel and CT summation box.

6. Bidding Schedule item “Electrical testing” includes providing electrical testing in accordance with Standard 9, paragraph 9.1.2 Acceptance Tests – Method A.

DIVISION 13 – ENVIRONMENTAL QUALITY PROTECTION

A. DESCRIPTION OF BID ITEMS:

1. The following Construction Standard 13 sections are included in Bidding Schedule item “Environmental Quality Protection”:

a. Required Submittals, Reports, and Plans (Section 13.1).

b. Contractor Furnished Data (Section 13.2.).

c. Environmental Requirements (Section 13.3).

d. Noxious Weed Control (Section 13.6).

e. Recycled Material Quantities (See Section 13.7).

f. Use of Recovered Material and Biobased Material Products (Section 13.8).

g. Disposal of Waste Material (Section 13.9).

h. Contractor’s Liability for Regulated Material Incidents (Section 13.10).

i. Pollutant Spill Prevention, Notification, and Cleanup (Section 13.11).

j. Prevention of Air-Pollution (Section 13.14).

k. Prevention of Water Pollution (Section 13.17).

l. Testing, Draining, Removal, and Disposal of Oil-Filled Electrical Equipment (Section 13.18).

m. Removal of Oil-Contaminated Material (Section 13.19).

n. Conservation of Biological Resources (Section 13.20).

Message from the Administrator

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

Our safety program is based on four points:

Safety procedures or common sense must be applied by each

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

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

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

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

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

Mark A. Gabriel Administrator