Project Specifications.pdf

DEVILS LAKE-CARRINGTON AND

RUGBY-DEVILS LAKE

115-KV TRANSMISSION LINE

STRUCTURE REPLACEMENTS

Solic. No. DE-FB65-11WC94226 Spec. No. 11WC94226-742

SECTION C

DESCRIPTION/SPECIFICATIONS

NORTH DAKOTA

SECTION C

DESCRIPTION/SPECIFICATIONS

DEVILS LAKE - CARRINGTON AND RUGBY – DEVILS LAKE

115-KV TRANSMISSION LINE

STRUCTURE REPLACEMENTS

DIVISION 1 – GENERAL REQUIREMENTS

A. CONTRACT REQUIREMENT:

B. DESCRIPTION OF WORK:

1. Constructing a new foundation and removing and reinstalling existing Structure 9/4

2. Providing steel collars for existing Structures 2/4 and 2/5 on the Devils Lake-Carrington

3. On the Rugby-Devils Lake 115-kV transmission line, removing approximately 1.75 miles

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. OUTAGES AND SEQUENCE OF CONSTRUCTION:

4. MAXIMUM AVAILABLE FAULT CURRENT:

E. CONSTRUCTION PLAN:

1. PROPOSED CONSTRUCTION PLAN:

2. DEVILS-LAKE CARRINGTON STRUCTURE 9/4 FOUNDATION AND STEEL COLLARS

3. CONSTRUCTION PLAN APPROVAL:

F. CONSTRUCTION PROGRAM:

1. SUBMITTAL TIME:

2. FORMAT AND DETAIL:

G. MATERIAL:

1. POINTS OF DELIVERY:

H. RIGHTS-OF-WAY:

1. GENERAL:

2. WORK ON THE RIGHT-OF-WAY:

I. GEOLOGIC INVESTIGATIONS:

J. ELECTRIC POWER FOR CONSTRUCTION PURPOSES:

K. WATER FOR CONSTRUCTION PURPOSES:

L. EXPLOSIVES AND BLASTING:

M. SUBMITTALS:

1. GENERAL:

2. APPROVAL TIME:

3. ADDRESSES:

DIVISION 2 – SITEWORK

A. GENERAL:

B. DESCRIPTION OF BIDDING SCHEDULE ITEMS:

1. Bidding Schedule item “Removing portions of existing transmission line”

2. Bidding Schedule does not contain separate items for the following include

DIVISION 3 – CONCRETE

A. GENERAL:

1. Material:

2. Test for Potential Reactivity of Sand and Coarse Aggregate:

B. DESCRIPTION OF BIDDING SCHEDULE ITEM:

1. Bidding Schedule item "Concrete foundations”

DIVISION 5 – TRANSMISSION LINE STEEL POLE STRUCTURES AND STEEL COLLARS

A. GENERAL:

1. Steel Pole Structures:

2. Steel Collars:

B. DESCRIPTION OF BIDDING SCHEDULE ITEMS:

1. Bidding Schedule item “Installing Government-furnished transmission line steel pole structures”

2. Bidding Schedule item “Steel Collars”

C. STRUCTURE DETAILS:

1. Structure details are listed in Table 5-1

DIVISION 6 – RELOCATING TRANSMISSION LINE STEEL POLE STRUCTURE

A. GENERAL:

B. DESCRIPTION OF BIDDING SCHEDULE ITEM:

1. Bidding Schedule item “Removing and reinstalling Structure No. 9/4” includes the following:

DIVISION 10 – TRANSMISSION LINE ELECTRICAL

A. DESCRIPTION OF BIDDING SCHEDULE ITEMS:

1. Bidding Schedule items for conductor insulator assemblies include furnishing material

2. Bidding Schedule item “Furnishing and installing three 477 KCMIL, ACSR, 30/7 strand

3. Bidding Schedule items for optical overhead ground wire assemblies includes

4. Bidding Schedule item “Furnishing and installing 0.465-inch diameter, 24-fiber,

5. Bidding Schedule item “Modifying optical splice enclosures”

6. Bidding Schedule items for vibration dampers for conductors and overhead ground wire

DIVISION 13 – ENVIRONMENTAL QUALITY PROTECTION

A. GENERAL:

1. Bidding Schedule does not contain separate items for Environmental Quality Protection

DIVISION 1 – GENERAL REQUIREMENTS

A. CONTRACT REQUIREMENT:

Construct and complete the Devils Lake-Carrington and Rugby-Devils Lake 115-kV Transmission Line Structure Replacements, 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 5 – Transmission Line Steel Pole Structures (March 2010), Standard 7 – Wood Poles (July 2009), Standard 10 – Transmission Line Electrical (March 2010), 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.

The Western Construction standards and standard Drawings are available at http://www.wapa.gov/business/buys.htm.

Western project specifications and 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:

1. Constructing a new foundation and removing and reinstalling existing Structure 9/4 on the Devils Lake-Carrington 115-kV transmission line. Existing Structure 9/4 and the new foundation location are in Devils Lake, and are only accessible by water.

2. Providing steel collars for existing Structures 2/4 and 2/5 on the Devils Lake-Carrington and

Rugby-Devils Lake double circuit 115-kV transmission line. Existing Structures 2/4 and 2/5 are in Devils Lake, and are only accessible by water.

3. On the Rugby-Devils Lake 115-kV transmission line, removing approximately 1.75 miles of existing transmission line, including 14 wood 115-kV H-Frame structures, 397.5 KCMIL, ACSR conductor, 3/8 high strength overhead ground wire and optical overhead ground wire (OPGW) and constructing 1.75 miles of 115-kV transmission line on nine single-pole base-plated steel structures with 477 KCMIL, ACSR conductor, and 3.3 miles of one 0.465 OPGW. This section of the Rugby-Devils Lake 115-kV transmission line to be constructed is in water.

Paragraphs “Description of Bidding Schedule Items” in Divisions – 1, 2, 3, 5 and 10 describe the work to be performed.

The work is located in Ramsey County and Benson County, North Dakota near the town of Devils Lake as shown on drawings DL-CA 0002, DL-CA 0003, and RG-DL 0001.

Organized and escorted site visits will not be conducted. If a prospective bidder wishes to visit the site, contact Western in advance at (605) 353-2670 to communicate schedule and mode of transportation.

http://www.wapa.gov/business/buys.htm�

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. Providing a Construction Plan.

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 365 calendar days from date of receipt of such notice.

2. SUBMITTAL APPROVAL TIME: Except as otherwise provided for specific submittals, Western will require 40 calendar days for review of drawings or data submitted for approval.

3. OUTAGES AND SEQUENCE OF CONSTRUCTION: No outages will be allowed until all materials are on site. 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 COR. All proposed outages shall be requested in writing to the COR a minimum of 3 weeks in advance. The contractor shall schedule and sequence the work to minimize outages. 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 conditions 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.

a. Outage Sequence for Construction: Simultaneous outages on the Devils Lake-Carrington and Rugby-Devils Lake Transmission Lines will not be permitted, except a brief outage for installing the steel collars on the Devils Lake-Carrington and Rugby-Devils Lake double circuit 115-kV transmission line. The Contractor shall consider these restrictions when planning the work.

4. 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. The maximum available fault current on the Devils Lake-Carrington Transmission Line is

4751 amps. The maximum available fault current on the Rugby-Devils Lake Transmission Line is 4751 amps.

E. CONSTRUCTION PLAN:

1. PROPOSED CONSTRUCTION PLAN: The Contractor shall develop a proposed construction plan for each major phase of work. The construction plan shall detail how the work is to be accomplished, the equipment that will be utilized, and the safety measures that shall be taken.

Acceptable methods of construction for Devils Lake-Carrington Structures 9/4, 2/4, and 2/5 and Rugby-Devils Lake Structures 38/3 to 41/5 are listed below. The Contractor may submit other methods of construction. For the Rugby-Devils Lake construction, the Contractor shall investigate the site conditions and prepare the construction plan accordingly. Submit the proposed construction plan within 45 calendar days after date of Notice to Proceed.

2. DEVILS-LAKE CARRINGTON STRUCTURE 9/4 FOUNDATION AND STEEL COLLARS FOR

STRUCTURES 2/4 AND 2/5 and Rugby-Devils Lake Structures 38/3 to 41/5: Acceptable methods of construction include:

a. Construction by barge: The construction plan shall detail how a barge will be utilized to transport material and equipment to the site and how the barge will be positioned to support construction equipment such as the drill rig and crane. The construction plan for working from a barge shall be developed by a registered professional engineer with a minimum of 10 years experience in barge construction methods, including crane positioning and picks, transportation of materials, and any other requirements to utilize barge construction safely. The construction plan shall detail how the foundation excavation will be performed and how concrete will be placed. The methods for detaching and supporting the conductor and overhead ground wire shall be detailed. Detaching the conductor and overhead ground wire is not required for the installation of steel collars on Structures 2/4 and 2/5.

b. Construction of a road from shore, including constructing an island at the site: The construction plan shall detail how the road and island shall be constructed, the size of the road and island, how the road and island shall be protected from erosion, and the quality control measures to ensure that the road and island shall support the required construction equipment. The methods for detaching and supporting the conductor and overhead ground wire shall be detailed. Detaching the conductor and overhead ground wire is not required for the installation of steel collars on Structures 2/4 and 2/5.

c. Construction by travelling across the lake during winter after the ice formation. The construction plan shall detail the location of the access road across the ice, how the access road shall be constructed and maintained, and how the ice road and work areas shall be monitored for safety. The construction plan for working on ice shall be developed by a registered professional engineer with a minimum of 10 years experience in design and maintenance of ice roads and ice construction. The methods for detaching and supporting the conductor and overhead ground wire shall be detailed. Detaching the conductor and overhead ground wire is not required for the installation of steel collars on Structures 2/4 and 2/5.

3. CONSTRUCTION PLAN APPROVAL: The construction plan is subject to approval by the

COR. The COR will not approve any plan, that in the opinion of the COR, cannot be constructed safely. The COR may require modifications in the approved construction based on site conditions . The Contractor shall not begin onsite construction until the construction plan is approved.

F. CONSTRUCTION PROGRAM:

1. SUBMITTAL TIME: Submit a construction program to the COR within 45 calendar days after date of Notice to Proceed.

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

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

Item Estimated

Weight

(LB)

Estimated Delivery

Date

Estimated Cost

1. (7) Type 151L-65 galvanized steel pole structures with maintenance provisions and anchor bolt cages

9900 EA NLT 2/2012 $18,000 EA

2. (2) Type 151D-65 galvanized steel pole structures with maintenance provisions and anchor bolt cages

29,200 EA NLT 2/2012 $53,000 EA

3. (1) Type 116S-100 anchor bolt cage 1800 EA NLT 2/2012 $3500 EA

NLT - No later than

1. POINTS OF DELIVERY: Material furnished by Western will be delivered to Western’s Devils

Lake Substation, Devils Lake, ND, as shown on drawing DL 0015. The steel pole supplier will unload Western-furnished material. The steel pole supplier will unload the four pole shaft base sections to be installed under this contract at their specific structure locations. The construction contractor is responsible for transporting the ten anchor bolt cages for concrete foundations to the specific structure locations.

H. RIGHTS-OF-WAY:

1. GENERAL: Transmission line right-of-way is 75 feet wide. Western does not represent that 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 may have travel restricted areas. During the contract period, Western reserves the right to use Contractor-obtained access.

2. 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.

I. GEOLOGIC INVESTIGATIONS:

Geologic investigations do not exist for this project.

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.

J. ELECTRIC POWER FOR CONSTRUCTION PURPOSES:

Make arrangements and provide all electric power for construction purposes. At contract completion, remove temporary electrical equipment.

K. 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.

L. EXPLOSIVES AND BLASTING:

Explosives shall not be used.

M. 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 Manager, Upper Great Plains Region Construction Office ATTN: B5600, Pat Doak 200 4th St. SW Huron, SD 57350

b. Electrical Engineer:

ATTN: A7910, Ross M. Clark P.O. Box 281213 Lakewood, CO 80228-8213

c. Civil Engineer:

ATTN: A7920, Douglas Hanson P.O. Box 281213 Lakewood, CO 80228-8213

DIVISION 2 – SITEWORK

A. GENERAL:

Any excavation along the transmission line will require the contractor to dispose of excess excavated material off Government Right-of-Way and in an approved manner.

B. DESCRIPTION OF BIDDING SCHEDULE ITEMS:

1. Bidding Schedule item “Removing portions of existing transmission line” includes the following:

a. Removing electrical items and wood pole structures. Locations described by station are on the existing Rugby-Devils Lake 115-kV transmission line as shown on RG-DL 4009-2 and RG-DL 4010-1 drawings. Structures and materials between and including existing Structure Numbers 38/3 to 39/8 shall be removed in accordance with RG-DL 115-kV Plan and Profile Drawings RG-DL 4009-1 and RG-DL 4010-2. Existing OPGW from Structure Numbers 39/5 to 41/5 shall also be removed. Leave extra length as necessary for existing conductor, OGW, and OPGW to make the connections to the new taller steel pole structures at new structure numbers 38/3 and 39/5. If wood products are transferred to right-of-way landowners it shall be handled in accordance with Standard 13, Section

13.12. Items removed from the existing line that are not taken by landowners shall become the property of the contractor and shall be removed promptly from the right-of-way, and shall not be reused in constructing the new line.

b. 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. Contractor should remove and roll up old existing OPGW and remove from the site.

Contractor shall leave sufficient existing OPGW to make a new splice on new steel structure 38/3.

d. Remove type HS wood pole structures, from existing structure numbers 38/3 to 39/8 as shown on drawings RG-DL 4009-1 and RG-DL 4010-2.

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

a. Clearing as directed by the COR.

b. Grading for structure sites, line clearance, and access road repair as directed by the COR.

c. Excavations for foundations.

d. Unwatering auger excavations if required.

e. Disposing of excavated material.

f. Seeding as directed by the COR.

g. Complying with environmental protection standards.

DIVISION 3 – CONCRETE

1. Material:

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

b. Compressive Strength: 5000 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 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: Western may perform tests for potential reactivity for the sand and coarse aggregate to be used by the Contractor. If the tests determine the aggregate(s) to be unsuitable as a concrete aggregate, a suitable source shall be obtained by the Contractor.

B. DESCRIPTION OF BIDDING SCHEDULE ITEM:

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

a. Assembling Government-furnished anchor bolts into cages as shown on the shop drawings.

b. Constructing concrete foundations for transmission line steel pole Structure Nos. 38/3, 38/4, 38/5, 38/6, 39/1, 39/2, 39/3, 39/4, and 39/5 as shown on drawing RG-DL 2100.

c. Constructing a concrete foundation for transmission line steel pole Structure No. 9/4 as shown on drawing DL-CA 2105. Structure No. 9/4 shall be located within 50 feet of the existing foundation and shall be in the centerline of the transmission line. The foundation location shall be determined by the Contractor based on the foundation construction method and shall be subject to approval by the COR.

d. Providing clips for removable climbing rung sections on the concrete foundations.

e. Concrete construction includes earthwork, formwork, reinforcement, material used in concrete, drilling and grouting anchor bars, curing, finishing, joints, and other related work and material needed to complete the required concrete construction including but not limited to the following:

f. Placing concrete underwater

g. Casing auger excavations, if required.

h. Trial augering, if required.

i. Measurement for quantities will be made on the basis of concrete quantities shown on drawings RG-DL 2100 and DL-CA 2105. Regardless of concrete quantities actually placed, payment will be based on the quantities shown on the drawings.

DIVISION 5 – TRANSMISSION LINE STEEL POLE STRUCTURES AND STEEL COLLARS

1. Steel Pole Structures: Seven (7) Type 151L-65 and two (2) Type 151D-65 galvanized, single-circuit, base-plated and anchor-bolted steel pole structures will be delivered unassembled to Western’s Devils Lake Substation, as shown on drawing DL 0015. Structure components include pole shaft sections, davit arms, fixed climbing rung sections and rungs, connection bolts, nuts, locknuts, lockwashers, anchor bolts, anchor bolt washers and nuts, and anchor bolt templates.

Steel pole shop drawings will be furnished when available.

2. Steel Collars: Two steel collars as shown on drawings 43-14S 2102-1 and 43-14S 2102-2 shall be provided on Structures 2/4 and 2/5. Submit shop drawings in accordance with Construction Standard 4 – Substation Metalwork and Transmission Line Lattice Structures.

B. DESCRIPTION OF BIDDING SCHEDULE ITEMS:

1. Bidding Schedule item “Installing Government-furnished transmission line steel pole structures” includes installing the 9 galvanized steel pole structures listed in Table 5-1.

2. Bidding Schedule item “Steel Collars” includes providing steel collars for Structures 2/4 and

2/5, including grouting the space between the collars and the steel pole structures.

C. STRUCTURE DETAILS:

1. Structure details are listed in Table 5-1.

TABLE 5-1 -- STRUCTURE DETAILS

Structure Type and

Height "H" * (Ft)

Str.

No.

Bottom Pole Shaft

Section Length (Ft-In)

Est.

Pole Shaft

Base Section Weight

(LB)

151D-65 38/3 46-10 15,200

151L-65 38/4 44-11 4,700

151L-65 38/5 44-11 4,700 151L-65 38/6 44-11 4,700 151L-65 39/1 44-11 4,700 151L-65 39/2 44-11 4,700 151L-65 39/3 44-11 4,700 151L-65 39/4 44-11 4,700 151D-65 39/5 46-10 15,200

*“H” refers to height portion of structure designation listed in Bidding Schedule.

Following picture is Structure 2/4.

Structure 2/4

DIVISION 6 – RELOCATING TRANSMISSION LINE STEEL POLE STRUCTURE

Structure No. 9/4 is a single-circuit “Y-Type” steel pole structure bolted to an 18-foot steel extension on top of a reinforced concrete foundation on the Devils Lake-Carrington Transmission Line.

Structure details and dimensions are shown on drawing 43-116S 2300. Total structure height is 116 feet.

B. DESCRIPTION OF BIDDING SCHEDULE ITEM:

1. Bidding Schedule item “Removing and reinstalling Structure No. 9/4” includes the following:

a. Detaching the conductor and overhead ground wire from the structure and supporting the conductor and overhead ground wire as required by the construction plan.

b. Furnishing and attaching two 3/4-inch-thick steel safety straps to the 1 inch heavy hex nuts (jacking lugs) on both sides of the slip joints on the structure with 1 inch bolts to prevent slip joint separation.

c. Carefully supporting the complete structure with a crane and a sling below the crossarm prior to removing the bolts attaching the steel pole structure to the 18-foot extension.

d. Carefully lifting and transporting the complete structure to the new foundation.

e. Lowering the structure onto the new anchor bolts. Ensure that clips for removable climbing rung sections on the steel pole line up with the climbing clips on the foundation.

Exercise extreme care to not damage anchor bolt threads.

f. Installing washers and nuts and tightening the top nuts on the new foundation.

g. Removing the safety straps from across the slip joints.

h. Providing reflective tape around the remaining 18 foot steel pole extension at approximately one foot vertical intervals from the top of the pole down to the waterline.

Reflectiv tape shall be equal to 3M Marine Grade USCG High Intensity Reflective Adhesive Tape, orange in color.

Following pictures are of Structure 9/4

Closeup View of Structure 9/4 Structure is on 18-foot extension

Distance View of Structure 9/4

Distance View of Structure 9/4

Winter 2010 View of Structure 9/4

DIVISION 10 – TRANSMISSION LINE ELECTRICAL

A. DESCRIPTION OF BIDDING SCHEDULE ITEMS:

1. Bidding Schedule items for conductor insulator assemblies include furnishing material and performing work and tests to provide insulator assemblies shown on drawings 41 1020, 41 1021, 41 1022, 41 1023, and 41 1024. An estimate of material quantities for each type of structure is shown on drawing RG-DL 1001.

a. Insulators for single string suspension assemblies and single string tension assemblies shall be porcelain, ANSI 52-3, with a mechanical rating of 20,000 pounds and gray in color.

b. Insulators for double string tension assemblies shall be porcelain, ANSI Class 52-3, with a mechanical strength rating of 20,000 pounds per string and gray in color.

c. Line post-type insulator assemblies shall be polymer-fiberglass and gray in color.

d. Line post-type insulator assemblies for steel structures shall comply with the characteristics of Table 10-1.

Table 10-1--115-kV Line Post Insulator Assembly Characteristic

For Steel Structures

115-kV Line Post Insulator Assembly Characteristic Jumper Line Post

Insulator Assembly for Steel Structures

Base end fitting Flat

Minimum cantilever strength (foot-pounds) 500

Minimum 60-Hz wet flashover (kV) 375

Minimum positive critical impulse flashover (kV) 860 Minimum dry arc distance with grading ring (inches) 55

Minimum leakage distance (inches) 148.8

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

f. Armor rods for 477,000-circular mil, 30/7 strand, ACSR conductor shall be:

Rod wire diameter .................................................................. 0.250 inch Direction of lay ....................................................................... right Rods per set

2. Bidding Schedule item “Furnishing and installing three 477 KCMIL, ACSR, 30/7 strand conductors” include furnishing, stringing, splicing, repairing, sagging, and clipping in the conductors; installing jumper loops; and furnishing and installing material to complete the conductor installations from new structure numbers 38/3 to 39/5, except for material furnished and installed as a part of insulator assemblies and accessories. Furnish and install material including conductor, conductor joints, conductor repair sleeves, and joint inhibitor compound required to complete conductor installation.

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

SPECIAL CHARACTERISTICS

Completed conductor size (circular mil) 477,000 ACSR

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

23,800

Aluminum strands Number 30

Diameter (inches) 0.1261

Steel strands Number 7

Diameter (inches) 0.1261

*Standard lengths of conductor on each reel (feet)

6,650

Random lengths, for a maximum of 10 percent of total amount furnished, not less than (feet)

1,400

*Allowable minus tolerance 5 percent, no upper limit on length.

3. Bidding Schedule items for optical overhead ground wire assemblies includes furnishing and installing optical overhead ground wire assemblies shown on drawing 41 1031. An estimate of material quantities for each type of structure is shown on drawing RG-DL 1001.

4. Bidding Schedule item “Furnishing and installing 0.465-inch diameter, 24-fiber, optical overhead ground wire” includes furnishing, stringing, sagging, clipping in the optical overhead ground wire (OPGW), to complete the OPGW installation from structure numbers 38/3 to 41/5, except for material furnished and installed as a part of suspension and tension assemblies for optical overhead ground wires.

a. Coil approximately 80 feet of extra length, per OPGW fiber, at each splice location with tails fixed in the optical splice enclosure in accordance with drawing 41 1029.

b. Furnish and install one optical overhead ground wire as shown on plan and profile drawings between structures 38/3 and 41/5. The OPGW shall be AFL Telecommunication’s specification DNO-3825 (model CC-57/465, 24 single mode fibers), or equivalent.

c. Stringing shall strictly adhere to procedures recommended by the manufacturer. Ensure that the allowable bending radius limitation of the fiber optic cable is not violated at any time.

d. OPGW wires shall be routed down and attached to steel structures using guide clamps as shown on drawings.

e. Fiber Optic Testing: Perform fiber optic testing in accordance with the following:

(1) Factory Tests of OPGW: Factory tests shall be performed on each fiber of every reel at the factory. Results shall be recorded and included in the packaging with the cables. Product data sheets showing the cable characteristics including dispersion, dimensional quality, and tensile strength shall be provided from the manufacturer.

(2) Pre-installation Field Tests of OPGW: The Contractor shall test all fibers of each reel of OPGW upon delivery to insure the cable was not damaged during shipment.

Notify the COR at least 7 days prior to all pre-installation field tests to enable Western observers to be present. Contractor shall submit optical time domain reflectometer (OTDR) charts (hardcopies) at 1550 nm showing launch conditions and all other parameters used in setup, plus time and date. These charts shall illustrate and quantify the losses of each length of fiber and stress points on the fiber. Review the traces carefully and explain unusual discontinuities in detail. The OTDR testing and waveforms shall be stored on a compact disk, (CD), and included with the submittal. If the OTDR testing is performed using equipment other than Wavetek or Tektronics, the Contractor shall supply Western with the software necessary to view the test results.

(3) Post-Installation Field Tests: Contractor shall notify the COR at least 7 days prior to the post-installation field tests to enable Western observers to be present. Perform end-to-end tests for each fiber after installation is complete and both splice enclosures have been placed in their permanent position. These tests shall include:

(a) OTDR charts (hardcopies) at 1550 nm showing launch conditions and all other parameters used in setup (specify length of launch cable), plus time and date. These charts shall illustrate and quantify the losses for the length of fiber and stress points on the fiber. Review the traces carefully and explain unusual discontinuities in detail. OTDR measurements shall be made in both directions. A 1 km launch fiber (aprx.) will be spliced to the fiber under test.

OTDR results shall be submitted for every fiber of the completed fiber system.

The OTDR testing and waveforms shall be stored on an optical disk and included with the required submittals. If the OTDR testing is performed using equipment other than Wavetek or Tektronics, the Contractor shall supply Western with the software necessary to view the test results.

(4) Instrument Calibration: All test equipment shall be calibrated with certification traceable to the National Institute of Standards and Technology relative to their intended use.

(5) Qualifications of Splicing and Testing Personnel: The fiber optic tester shall have a minimum of one year testing and operations experience with the OTDR test equipment used for tests required in this specification, and shall be able to use all necessary test equipment without reference to test equipment instruction books while performing the required tests specified herein. All personnel performing splicing shall be certified to do so by the Electronic Technician Association or equivalent training program.

f. Fiber Optic Communication Drawings and Data:

All drawings and technical data required to be furnished by the Contractor shall be in English. The drawings and data shall be complete and accurate in their content. Originals and all copies shall be legible.

Western shall have the right to require the Contractor to make any changes in the drawings and data that may be necessary to show the equipment furnished conforms to the requirements of these specifications. The design and coordination of the fiber optic communication equipment shall be the responsibility of the Contractor and Western assumes no responsibility to approve or review drawings and data that are submitted.

Table 10-3 summarizes the drawings and data required under these specifications.

Table 10-3 – Drawings and Data Schedule for Fiber Optic Material

Type of Drawings and Data Delivery Time Type of Material

Quantity to A7910

Quantity to COR

Factory Test Results of OPGW With shipment Test

Results 1 2

Certification of testing personnel

30 days prior to fiber testing

Copy of Certification 1 2

Pre-Installation Field Test Results

14 days after receipt of OPGW

OTDR

Charts and

Disk 1 2

Post-Installation Field Test Results

14 days after completion of tests

OTDR

Charts and

Disk 1 2

5. Bidding Schedule item “Modifying optical splice enclosures” includes removing existing optical splice enclosure and external cable storage bracket from existing wood-pole structure 38/4, and reinstalling it at new steel-pole structure 38/3. The existing optical splice enclosure and cable storage bracket at existing structure 41/5 will be reused in-place. The optical splice enclosures will be AFL Telecommunication’s SB01. The cable storage brackets will be either Dulmison 30” part number FC-720-CB or Lankota’s part number 146. The optical splice enclosures on transmission line structures shall be mounted according to standard drawings.

Note, the existing optical splice enclosure mounted on existing structure 38/4 is lag-bolted into the wood pole. The contractor will be required to mount this enclosure to the new steel pole structure 38/3. The contractor shall determine best attachment method and submit this method to the COR for approval prior to mounting.

6. Bidding Schedule items for vibration dampers for conductors and overhead ground wire and optical overhead ground wire include determining the number of vibration dampers needed, furnishing material, and performing all work, including testing, required to furnish and install vibration dampers for ACSR conductors, overhead ground wire and optical overhead ground wire.

a. Vibration Damper drawing RG-DL 1002 contains all the 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 and the damper drawing to the manufacturer for application recommendations and final spacing’s for attachments on entire line. The Contractor shall furnish and install vibration dampers on the optical overhead ground wire from structure numbers 38/3 to 41/5.

b. Regardless of the Manufacturer’s recommendations, at least one damper shall be provided for each wire on each span.

c. Vibration dampers for use on overhead ground wire shall be spiral-type and shall be installed directly to the optical overhead ground wire.

d. Vibration dampers for use on 477,000 circular mil, ACSR conductors shall be stockbridge-type and shall be installed directly to the conductor or armor rod as applicable.

DIVISION 13 – ENVIRONMENTAL QUALITY PROTECTION

1. Bidding Schedule does not contain separate items for Environmental Quality Protection.

Include these items in applicable Bidding Schedule items.

a. Environmental Quality Protection: Standard 13 – Environmental Quality Protection (July

2009) and the following

b. U.S. Army Corps of Engineers Permit 9601-06. A copy of this permit is available from the

COR.

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.

B. DESCRIPTION OF BIDDING SCHEDULE ITEM: