Project_Specifications.pdf

BISMARCK-JAMESTOWN NO. 1

& BISMARCK-MEDORA 230-KV

TRANSMISSION LINE SPANS

Solicitation No. DE-SOL-0008800 Spec. No. 15WC113951-856

SECTION C

DESCRIPTION/SPECIFICATIONS

NORTH DAKOTA

SECTION C

DESCRIPTION/SPECIFICATIONS

BISMARCK-JAMESTOWN NO. 1

& BISMARCK-MEDORA 230-KV TRANSMISSION LINE SPANS

DIVISION 1 – GENERAL REQUIREMENTS

A. CONTRACT REQUIREMENT:

B. DECSRIPTION OF WORK:

C. DESCRIPTION OF BIDDING SCHEDULE ITEM:

Bidding Schedule item “Mobilization and preparatory work” ......................................................... 2 1.

D. COMMENCEMENT, PROSECUTION, AND COMPLETION OF WORK:

COMMENCEMENT AND COMPLETION: .................................................................................. 2 1.

SUBMITTAL APPROVAL TIME: .................................................................................................... 3 2.

OUTAGE RESTRICTIONS: ........................................................................................................... 3 3.

CONSTRUCTION SCHEDULE RESTRICTIONS: ......................................................................... 3 4.

MAXIMUM AVAILABLE FAULT CURRENT: ................................................................................. 3 5.

E. CONSTRUCTION PROGRAM:

SUBMITTAL TIME: ......................................................................................................................... 3 1.

FORMAT AND DETAIL: ................................................................................................................. 3 2.

F. MATERIAL:

POINTS-OF-DELIVERY: ............................................................................................................... 4 1.

G. RIGHTS-OF-WAY:

GENERAL: .................................................................................................................................... 4 1.

ACCESS EASEMENTS: ................................................................................................................. 4 2.

WORK ON THE RIGHT-OF-WAY: ................................................................................................. 4 3.

H. WATER FOR CONSTRUCTION PURPOSES:

I. EXPLOSIVES AND BLASTING:

J. SUBMITTALS:

GENERAL: . ................................................................................................................................... 5 1.

APPROVAL TIME: . ........................................................................................................................ 5 2.

TRANSMITTAL:. ............................................................................................................................. 5 3.

DIVISION 2 – SITEWORK

A. GENERAL:

B. DESCRIPTION OF BIDDING SCHEDULE ITEMS:

Bidding Schedule item "Removing and disposing of existing transmission line" .......................... 6 1.

2. Bidding Schedule item “Seeding”

Bidding Schedule does not contain separate items for the following: ........................................ 10 3.

A. GENERAL:

B. DESCRIPTION OF BIDDING SCHEDULE ITEM:

Bidding Schedule items for “Installing Government-furnished transmission line steel pole 1.

structures”

DIVISION 10 – TRANSMISSION LINE ELECTRICAL

A. DESCRIPTION OF BIDDING SCHEDULE ITEMS:

Bidding Schedule items for “Furnishing and Installing conductor insulator assemblies” . ........... 12 1.

Bidding Schedule items for “Furnishing and Installing overhead ground wire assemblies” ......... 12 2.

Bidding Schedule items for “Furnishing and Installing optical overhead ground wire assemblies” . 3.

Bidding Schedule items for “Installing Government-furnished conductors” ................................. 12 4.

Bidding Schedule item for “Furnishing and Installing one (1) 7/16-inch-diameter, galvanized, 5.

extra-high-strength steel, 7-strand overhead ground wire” Bidding Schedule items for “Restring one (1) 0.531-inch-diameter optical overhead ground wire” 6.

Bidding Schedule item for “Furnishing and Installing stockbridge-type vibration dampers for 7.

conductors, for overhead ground wire and for optical overhead ground wire” Bidding Schedule item "Flying tap connection" ........................................................................... 14 8.

DIVISION 1 – GENERAL REQUIREMENTS

A. CONTRACT REQUIREMENT:

Construct and complete Bismarck–Jamestown No.1 and Bismarck–Medora 230-kV Transmission Line Spans, 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 5 – Transmission Line Steel Pole Structures (September 2013), Standard 10 – Transmission Line – Electrical (September 2013), 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. DECSRIPTION OF WORK:

The principal components of work include removing and reinstalling two (2) spans of the Bismarck-Jamestown No. 1 and three (3) spans of the Ward Delivery-Belfield section of the Bismarck-Medora 230-kV Transmission Lines; removing one (1) lattice steel tower and the legs of a second lattice steel tower; cutting off 8 (8) lattice tower concrete footings; and installing two (2) Government-furnished transmission line steel pole structures.

Paragraphs "Description of Bidding Schedule Items" in Divisions 1, 2, 5, and 10 describe the work to be performed.

The work is located near Jamestown, North Dakota, Drawing JT 0016 and near Bismarck, North Dakota, Drawings BS 0019 and BS-JT 0003.

C. DESCRIPTION OF BIDDING SCHEDULE ITEM:

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

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

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

c. Complying with DOE O 442.2, Differing Professional Opinions for Technical Issues

Involving Environment, Safety and Health

D. COMMENCEMENT, PROSECUTION, AND COMPLETION OF WORK:

COMMENCEMENT AND COMPLETION: See FAR 52.211-10 in Section F of the 1.

solicitation/contract.

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

SUBMITTAL APPROVAL TIME: Except as otherwise provided for specific submittals, Western 2.

will require 14-calendar days for review of drawings or data submitted for approval.

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

following outage restrictions shall apply:

a. The electrical operation of the transmission lines are under the jurisdiction of Western’s Watertown Operations Office. All outage requests by the Contractor shall be subject to the approval of the Contracting Officer’s Representative (COR). Approval or denial of an individual outage request will be based on transmission system electrical loads, system operating configurations and weather conditions at the time the outage is scheduled to begin. At any time because of transmission system electrical loads, system operating configurations, weather conditions or any condition which may cause an adverse effect on the transmission system operation or reliability, Western may deny an outage request or direct the Contractor to return facilities to operating conditions and release the applicable Special Work Permit.

b. Make all outage requests in writing to the COR a minimum of 3-weeks (21-days) in advance.

c. Meeting the minimum advance notice requirement of 3-weeks does not guarantee an outage will be approved. To improve the chances of an outage being approved, all outages should be submitted with as much advance notice as practicable. Weather conditions and other system conditions such as other scheduled and nonscheduled (forced) outages must be evaluated against an outage request before approval can be granted.

CONSTRUCTION SCHEDULE RESTRICTIONS: 4.

a. The Contractor shall not work more than 12 hours per day nor more than 60 hours in one continuous period without approval from the COR.

MAXIMUM AVAILABLE FAULT CURRENT: When protective ground leads are required, the 5.

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 for mile 198 of the Bismarck-Medora 230-kV Line is

13,640 amps with an X/R ratio of 9.04. The maximum available fault current for structure 49/4 of the Bismarck-Jamestown #1 230-kV Line is 4,571 amps with an X/R ratio of 8.47.

b. A minimum of one (1) 1/0, 2/0, or 4/0 grounds shall be used in the 230-kV area.

E. CONSTRUCTION PROGRAM:

SUBMITTAL TIME: Prepare and Submit a Construction Schedule to the Contracting Officer 1.

(CO) within 30-calendar days after date of Notice to Proceed.

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

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. One (1) Type 285D-60 (BP) transmission line steel pole structure with maintenance provisions

33,340 Onsite Jamestown Substation $62,350

2. One (1) Type 285D-100 (BP) transmission line steel pole structure with maintenance provisions

63,070 Onsite Jamestown Substation $117,950

3. Three (3) 3000-foot reels 954 kcmil CANVASBACK ACSS MA5 30/19 conductor

4725 per reel Onsite Jamestown Substation $25,000

4. Three (3) 7000-foot reels, 795 kcmil DRAKE ACSS MA5 26/7 conductor

8000 per reel Onsite Bismarck Substation $40,000

POINTS-OF-DELIVERY: Items 1, 2 and 3 will be delivered to Western’s Jamestown Substation 1.

as shown on Drawing JT 0016. Item 4 will be delivered to the Bismarck storage facility located at 700 North Bismarck Expressway, Bismarck, North Dakota, 58501. The Contractor is responsible for loading and unloading, transporting Western-furnished material to the worksite.

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

G. RIGHTS-OF-WAY:

GENERAL: Transmission line right-of-way is 125-feet-wide. Western does not represent that 1.

the Contractor can gain access to every structure site or travel continuously along the transmission line.

Orient construction methods and equipment to utilize Government-furnished rights-of-way, or obtain additional temporary access without additional cost to Western. Any additional temporary access acquired by the Contractor shall have prior COR approval, since several areas of the transmission line have travel restricted areas. During the contract period, Western reserves the right to use Contractor-obtained access.

ACCESS EASEMENTS: Western has acquired access easements from existing public roads 2.

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.

WORK ON THE RIGHT-OF-WAY: 3.

a. General: Perform work on the rights-of-way necessary for access to or along the transmission line. Only that excavation, dozing, or blading 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, 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. 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.

I. EXPLOSIVES AND BLASTING:

Explosives shall not be used.

J. SUBMITTALS:

GENERAL: The Contractor shall furnish submittals via email as specified in the Construction 1.

Standards and this Project Specification. Submittals via email shall be in standard PDF or Electronic CAD “*.dwg” (AutoCAD 2014) formats. All submittals shall include the Western specification number, 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.

APPROVAL TIME: Approval time for submittals shall be in accordance with the 2.

“Commencement, Prosecution, and Completion of Work” paragraph.

TRANSMITTAL: The Contractor shall transmit submittals to the Construction Engineer. 3.

a. Construction Engineer:

Western Area Power Administration Western Construction Engineer ATTN: B5613.HU, Mandy Wipf 200 4th Street SW Huron, South Dakota 57350-2474 Email: Wipf@wapa.gov mailto:Wipf@wapa.gov

DIVISION 2 – SITEWORK

A. GENERAL: The transmission lines are in cultivated fields, requiring disposal of excess excavated material.

B. DESCRIPTION OF BIDDING SCHEDULE ITEMS:

Bidding Schedule item "Removing and disposing of existing transmission line" includes 1.

the following:

a. Remove and dispose of electrical items and cutting off concrete footings. Locations described are on the existing Bismarck-Jamestown No. 1 and Bismarck-Medora 230-kV Transmission Lines. Items removed from the existing line may not be reused in constructing the new line.

b. Approximate quantities are listed in Tables 2-1. 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 and dispose of the conductors and overhead ground wire complete with accessories, and optical overhead ground wire assemblies listed in Table 2-1.

TABLE 2-1 ELECTRICAL ITEMS TO BE REMOVED

MATERIAL UNIT QUANTITY

Bismarck – Medora

Three (3) 795,000-circular mil, 26/7, ACSR DRAKE conductor FT 6350

Tension insulator assemblies EA 6

Suspension insulator assemblies EA 6

Bismarck – Jamestown 1

Three (3) 954,000-circular mil, 54/7, ACSR CARDINAL conductor FT 2390

One 1/2-inch, HS-steel, 7-strand overhead ground wire FT 2390

Suspension insulator assemblies EA 6

Suspension overhead ground wire assemblies EA 2

Suspension optical overhead ground wire assemblies EA 2

d. Remove steel towers and cut off or remove the concrete foundations on Bismarck – Jamestown #1 as listed in Table 2-2.

TABLE 2-2 STEEL TOWERS AND FOUNDATIONS TO BE REMOVED

Structure No.

Tower Type

Body Height (ft-in)

Existing Station

Leg Extension Height (ft-in) Footing Type

Near 49/5 206S N/A 71+07 20-0 22-6 22-6 17-6 SP SP SP SP

50/1 206S 80-0 86+80 20-0 20-0 20-0 20-0 SP SP SP SP

(1) Remove and dispose of steel towers and concrete foundations included in Table 2-

2. Note that the structure “near 49/5” is only a partial structure. Property damage shall be kept to an absolute minimum. Any property damage shall be repaired at the contractors cost.

(2) Typical structure details on shown on Western Standard drawings 43-206S 2200 and 2202. Manufacturer's drawings will be furnished within 30 days following contract award.

(3) Structure near 49/5 at station 71+07 consists of leg extensions and concrete foundations. Tower steel above leg extensions has been removed. See Photo 1.

(4) Foundation details are shown on Western drawing BS-JT 2002. The Contractor shall either cut off concrete foundations 4 feet below ground line. Dispose of excavated material and concrete. Backfill and compact hole with select backfill. All imported fill must be preapproved by the COR. Provide 6 inches topsoil prior to seeding.

Photo 1 – Structure to be removed near 49/5

Photo 2 – Structure to be removed near 49/5

Photo 3 – Structure to be removed near 50/1

Photo 4 – Structure to be removed near 50/1

2. Bidding Schedule item “Seeding” includes providing material, preparing areas to be seeded, spreading commercial fertilizer, sowing and maintaining grass seed, and protecting seeded areas. Areas to be seeded include:

a. Disturbed areas.

b. Disposal areas.

c. Borrow areas.

d. Seed: Use regionally native plant seed. Perform seeding during the period March 1 to

June 1 or August 1 to October 1, except during unfavorable weather conditions or when soil conditions are not suitable as determined by the COR.

e. Fertilizer: Applying uniformly at a rate required per the Western Construction Standards

f. Mulching: Applying mulch to seeded areas and crimp into top soil within 24-hours after seeding. Applying uniformly at a rate required per the Western Construction Standards

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

in applicable Bidding Schedule items:

a. Disposing of excavated material.

DIVISION 5 – TRANSMISSION LINE STEEL POLE STRUCTURES

A. GENERAL:

One (1) Type 285D-60 (BP) and one (1) Type 285D-100 (BP) galvanized, base-plated, and anchor-bolted steel pole structures shall be installed for this project on the Bismarck-Jamestown No. 1 230-kV transmission line. The concrete foundations have already been constructed.

Structures are stored at Western’s Jamestown Substation as shown on Drawing JT 0016. The Contractor shall transport the structures to the worksite.

Structure components include pole shaft sections, davit arms, anchor bolt nuts and washers, fixed climbing rung sections, connection bolts, nuts, and locknuts. Steel pole shop drawings are included in the Project Drawings.

B. DESCRIPTION OF BIDDING SCHEDULE ITEM:

Bidding Schedule items for “Installing Government-furnished transmission line steel 1.

pole structures” includes assembling and installing the steel pole structures listed in Table 5-1 complete with the following:

a. Attaching rungs and installing fixed climbing rung sections on all structures with bolts, nuts, and locknuts.

b. Furnishing and installing structure number signs on the ahead and back span sides of both structures in accordance with Drawing 41 9027 and the plan-and profile drawings.

Signs for Structure No. 49/4A shall be in accordance with the 3-digit mile number detail and signs for Structure No. 50/1 shall be in accordance with the 1- and 2-digit mile number detail on Drawing 41 9027.

c. The Contractor shall furnish all mounting hardware consisting of 5/8-inch-diameter bolts, nuts, washers, and locknuts.

d. Furnishing and installing two (2) aerial patrol mile marker signs on the top of Structure No. 50/1 in accordance with the 2-digit mile number detail on Drawing 41 9027

e. All pole shaft sections shall be jacked together in accordance with manufacturer’s recommendations as shown on the steel pole shop drawings.

f. Installing the structures listed in Table 5-1 on existing concrete foundations.

TABLE 5-1 – STRUCTURES TO BE INSTALLED ON CONCRETE FOUNDATIONS

STRUCTURE TYPE & HEIGHT "H" 1 (FT.) STRUCTURE NO.

285D-60 (BP) 49/4A

285D-100 (BP) 50/1

DIVISION 10 – TRANSMISSION LINE ELECTRICAL

A. DESCRIPTION OF BIDDING SCHEDULE ITEMS:

Bidding Schedule items for “Furnishing and Installing conductor insulator assemblies” 1.

include furnishing material and performing work and tests to provide insulator assemblies shown on Drawings 41 1020, and 41 1023. Type SI11-B jumper assemblies will have a conventional suspension shoe suitable for high temperature (482 degrees Fahrenheit/ 250 degrees Celsius) operation. Type SI11-B and SIA11-B suspension assemblies will have a “cushioned type with integral armor rods” suspension suitable for high temperature (482 degrees Fahrenheit / 250 degrees Celsius) operation instead of conventional suspension shoes. Tension assemblies will be furnished complete with terminal connectors for jumper loop installations. An estimate of material quantities for each type of structure is shown on Drawings BS-JT 1 1000 and WDD-BEF 1001.

a. Suspension-type insulators shall be porcelain and brown in color.

b. The Contractor shall furnish and use high-temperature joint inhibitor compound to complete all compression installations.

c. Line post-type insulators shall comply with the characteristics of Table 10-1.

TABLE 10-1 – 230-KV LINE POST INSULATOR CHARACTERISTICS

LINE POST INSULATOR CHARACTERISTICS

JUMPER

LINE POST

INSULATOR

Specified/Working Mechanical Load Rating (LBS) 995

Minimum 60-Hz wet flashover (kV) 660

Minimum positive critical impulse flashover (kV) 1245

Minimum dry arc distance with grading ring (IN) 77

Minimum leakage distance (IN) 210.8

The base material for the housing (sheath) and weathersheds of composite line post-type insulators shall be a silicone or EPDM rubber, or a silicone compound blended with an EP rubber during the batching process such that an alloy of the two (2) is formed during the final vulcanization process.

Bidding Schedule items for “Furnishing and Installing overhead ground wire 2.

assemblies” include furnishing material and performing work and tests to provide overhead ground wire assemblies shown on Drawings 41 1018. An estimate of material quantities for each type of structure is shown on Drawing BS-JT 1 1000.

Bidding Schedule items for “Furnishing and Installing optical overhead ground wire 3.

assemblies” include furnishing material and performing work and tests to provide optical overhead ground wire assemblies shown on Drawings 41 1031. An estimate of material quantities for each type of structure is shown on Drawing BS-JT 1 1000.

Bidding Schedule items for “Installing Government-furnished conductors” include 4.

stringing, splicing, repairing, sagging, and clipping in the conductors; installing jumper loops;

and furnishing and installing material to complete the conductor installations, except for material furnished and installed as a part of insulator assemblies and accessories. Furnish and install material including conductor joints, conductor repair sleeves, and joint inhibitor compound required to complete conductor installation.

Measurement for stringing conductors will be made horizontally along the centerline of the transmission line.

Government furnished conductors comply with the characteristics of Table 10-2.

TABLE 10-2 – 230-KV CONDUCTOR SPECIAL CHARACTERISTICS

CONDUCTOR SPECIAL CHARACTERISTICS

Completed conductor size (circular mil) 795,000 954,000

Ultimate strength, as computed for the strength of the individual strands, not less than (LBS)

32,600 53,100

Diameter (IN) 1.108 1.248

Aluminum strands Number 26 30

Steel strands Number 7 19 Quantity on three (3) nonreturnable wood reels (FT) 7000 3000

Span lengths (FT) 1926, 2449, 1969 519, 1871

Type DRAKE ACSS MA5 CANVASBACK ACSS MA5

Transmission line Bismarck-Medora Bismarck-Jamestown #1

Bidding Schedule item for “Furnishing and Installing one (1) 7/16-inch-diameter, 5.

galvanized, extra-high-strength steel, 7-strand overhead ground wire” includes furnishing, stringing, splicing, sagging, and clipping in the overhead ground wire, as described; and furnishing and installing material to complete the overhead ground wire installations, except for material furnished and installed as a part of suspension and tension assemblies for overhead ground wires and accessories. The overhead ground wire will be installed between the new steel poles, BS-JT 1.

Bidding Schedule items for “Restring one (1) 0.531-inch-diameter optical overhead 6.

ground wire” includes removing, reinstalling, stringing, sagging, and clipping in the existing optical overhead ground wire, as described; and furnishing and installing material to complete the optical overhead ground wire installations, except for material furnished and installed as a part of suspension and tension assemblies for optical overhead ground wires and accessories.

The existing optical overhead ground wire shall be tensioned to the new steel poles, BS-JT 1.

In order to create the jumper loops at the two (2) tension structures, OPGW slack shall be taken from the splice and tension assembly at structure 48/4. The suspension assemblies at structures 48/5, 49/1, 49/2, 49/3, 49/4, and 49/5 shall be adjusted accordingly. Fiber splices are not allowed.

Bidding Schedule item for “Furnishing and Installing stockbridge-type vibration 7.

dampers for conductors, for overhead ground wire and for optical overhead ground wire” includes determining the number of vibration dampers needed, furnishing material, and performing all work, including testing, required to furnish and install vibration dampers for ACSS conductors, steel-strand overhead ground wires and optical overhead ground wires.

Below are the conductor, overhead ground wire and optical overhead ground wire, span and tension data necessary for a damper manufacturer to provide recommendations for quantities and spacing for dampers. The Contractor should provide this specification paragraph to the manufacturer for application and spacing recommendations.

795,000 ACSS conductor – spans 1926’, 2449’, 1969’ NESC Heavy initial tension 11,680 lbs.

No Load 60°F initial 5618 lbs. final 5618 lbs.

No Load 0°F initial 5800 lbs. final 5800 lbs.

No Load -40°F initial 5923 final 5923 lbs.

954,000 ACSS conductor – spans 519’, 1871’ NESC Heavy initial tension 15,800 lbs.

No Load 60°F initial 9074 lbs. final 9074 lbs.

No Load 10°F initial 9543 lbs. final 9543 lbs.

No Load -40°F initial 10,036 final 10,036 lbs.

7/16-inch OGW – spans 519’, 1871’ NESC Heavy initial tension 6960 lbs.

No Load 60°F initial 2369 lbs. final 2369 lbs.

No Load 10°F initial 2476 lbs. final 2476 lbs.

No Load -40°F initial 2596 final 2596 lbs.

0.531-inch OPGW – spans 519’, 1871’ NESC Heavy initial tension 6680 lbs.

No Load 60°F initial 1956 lbs. final 1872 lbs.

No Load 10°F initial 2086 lbs. final 1986 lbs.

No Load -40°F initial 2240 final 2120 lbs.

Bidding Schedule item "Flying tap connection" includes furnishing and installing three high 8.

temperature, open run, tee taps suitable for Government-furnished 795 kcmil, 26/7, ACSS MA5 conductor. At lattice structure 198/1, Figure 1, disconnect the jumper pad with flying tap conductor jumper from the existing compression tee tap. After ACSS conductor installation on structure 198/1, install three (3) compression tee taps and reconnect the jumper pad with conductor jumper completing the flying tap between the upper and lower conductors.

FIGURE 1: FLYING TAP CONNECTIONS AT STRUCTURE 198/1

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