Exhibit B2- Section 16121 Medium Voltgage Cable.pdf

P-F3 TO P-F4 15KV CABLE INSTALLATION 3-7-103B

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SECTION 16121 - MEDIUM VOLTAGE CABLE

PART 1 - SCOPE

1.01

1.02

1.03

1.04

INCLUDED: This Specification details the requirements for 15 kV, solid dielectric, ethylene propylene rubber insulation, triplexed aluminum cable with jacketed concentric, copper, neutral conductors. Cable shall be suitable for use on 13.8 kV, 60 hertz, solidly grounded systems.

CONDUCTOR SIZE: Refer to one line diagram for the conductor sizes and quantities.

INSTALLATION: Cable shall be suitable for installation in wet or dry locations, in an underground duct distribution system or direct buried in earth.

The 15 kV cable and splice kits will be provided by FFGD, installed and wired by Electrical Contractor.

PART 2 - CONDITIONS

2.01 APPLICABLE STANDARDS: The publications listed below form part of this Specification. Each publication shall be latest revision and addendum in effect on the date of subcontract award, unless noted otherwise. Except as specifically modified by the requirements specified herein, the work included under this Specification shall conform to the provisions of these publications:

A. AEIC (Association of Edison Illuminating Companies).

B. ANSI (American National Standards Institute)

C. ASTM (American Society for Testing and Materials).

D. ICEA (Insulated Cable Engineers Association).

E. NEMA (National Electrical Manufactures Association).

F. NFPA (National Fire Protection Association)

1. NFPA 70 (National Electric Code)

G. The Wire Association International "Electrical Wire Handbook."

Should a conflict occur between the above referenced standards, the AEIC standard will prevail. Any conflict, however, shall be brought to the attention of

FFGD.

This Specification shall be the operative norm where it exceeds the listed standards.

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PART 3 - MATERIALS

3.01 RATINGS:

A. Cable assemblies shall operate on a 13.8 kV (phase-to-phase), 60 hertz, wye connected, solidly grounded system.

B. Cable shall be rated 15 kV.

3.02 CENTER CONDUCTOR:

A. The center conductor shall be uncoated, electrical grade aluminum alloy 1350, three-quarter hard drawn, H16 Grade temper meeting the requirements of ASTM for tensile, elongation and brittle requirements.

B. The conductor shall be concentric lay Class B stranding with 1% to 3% compressed concentric lay.

C. Compatible semiconducting, high viscosity compounds shall be used to completely fill the interstices of the stranded conductors.

D. The conductor shall have a minimum tensile strength as prescribed by ASTM standards.

E. Splicing of conductors is strictly prohibited. Cables shall be shipped in continuous unspliced lengths.

3.03 STRESS CONTROL LAYER (CENTER CONDUCTOR SHIELD):

A. Center conductor shield shall be extruded, conducting or preferably non-conducting, thermosetting compound with a minimum average thickness of 18 mils. Supplier shall distinguish at the time of bid whether the center conductor shield is conducting or non-conducting.

B. Stress control layer material shall be compatible with conductor and insulation materials.

C. Stress control layer material shall have an allowable operating temperature at least equal to that of the insulation system.

D. Stress control layer shall be bonded to the overlying insulation yet be easily removed from the conductor without leaving residues.

3.04 INSULATION:

A. The insulation shall be ethylene propylene-rubber resistant to heat, moisture, impact, ozone and discharge.

B. The insulation system shall be suitable for a minimum continuous conductor temperature of 90°C, an emergency temperature of 130°C and short circuit temperature of 250°C. At the time of quotation, the cable supplier shall clearly

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indicate the cable thermal specifications (continuous, emergency, and short circuit) of the product they are proposing.

C. The minimum average thickness of the insulation shall be 175 mils.

D. Insulation physical and electrical properties shall be in accordance with ICEA Paragraph 3.6 (Type 1 Insulation).

E. Insulation shall contain no polyethylene compounds.

3.05 INSULATION SHIELD:

A. The insulation shield shall be an extruded thermosetting semiconducting compound.

B. Insulation shield physical and electrical properties shall be in accordance with AEIC requirements.

C. Insulation shield shall be free-stripping leaving no conducting particles or residue on the insulation surface.

D. Insulation shield shall be identified as being conductive.

3.06 CONCENTRIC NEUTRAL CONDUCTORS:

A. Concentric neutral conductors shall be solid, bare, annealed, uncoated, round copper spirally applied over the insulation shield with uniform spacing between wires.

B. Concentric neutral conductors shall be provided in accordance with ICEA S-68- 516 Table 7.6.5 and twenty-four (24) #12 AWG conductors shall be provided.

C. The concentric neutral spacing shall be uniform with the length of lay not less than six (6) nor more than ten (10) times the diameter over the concentric wire layer.

3.07 JACKET:

A. A non-conducting encapsulating linear, low-density, polyethylene jacket shall be provided over the concentric neutral conductors.

B. Jacket shall be in accordance with ICEA and AEIC Standards.

3.08 IDENTIFICATION:

A. All cable shall be identified by means of surface printing to indicate:

1. Manufacturer's name.

2. Cable size.

3. Insulation type and thickness.

4. Voltage rating.

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5. Year of manufacture.

6. Sequential footing marking.

3.09 TESTING AND QUALITY ASSURANCE FOR EACH REEL: All testing as noted in this section pertains to factory tests conducted at the time of manufacture. Results of these tests will be made available to the FFGD Standards Engineer prior to the shipment of cable reels as noted in Appendix II requirements to the supplier.

A. Insulating shield stripping tests:

1. The semiconducting or non-conducting material shall be cut longitudinally using a scoring tool radial depth of one (1) mil less than the minimum point.

A second parallel cut shall be made radially 1/2" from the first cut. The shielding shall be removable for 12" of length without tearing or leaving conducting material on the insulation. Stripping tension shall be 20 lbs.

(maximum).

B. The completed cable shall be tested in accordance with Sections E and F of AEIC CS6 for ac voltages only.

1. The partial discharge shall be 5 pC or less for all voltages. Manufacturer shall provide X-Y plots as part of the certified test reports or the cable insulation shall be qualified using the ASTM D2275-89 "Standard Test Method for Voltage Endurance of Solid Electrical Insulating Materials Subjected to Partial Discharges (Corona) on the Surface".

C. An inspection shall be made and reported for the surface of each conductor to assure that the outer surface of the conductor is clean and free of water blocking compound or any foreign matter.

1. A water penetration test shall be made for each shipping reel to assure that each stranded conductor is properly filled with an approved water blocking compound.

2. Test results for water penetration tests and inspection of conductor surface shall be included as part of the certified test reports.

D. A water migration test shall be provided at least once for each cable shipment or at intervals of each 25,000 conductor feet as an on-going performance indicator of the longitudinal water blocked jacket. Results shall be included as part of the certified test report.

E. Certified test reports shall be forwarded with each reel and shall include oscillograms, test reports, and drawings required to comply with this Specification.

F. FFGD reserves the right to witness all testing, and shipment commitments shall allow five (5) days for advance notification.

PART 4 - WARRANTY

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4.01 Cable being proposed shall include warranty period and coverage. Cable shall be designed and manufactured to provide a life expectancy for a minimum 40 year period commencing upon delivery to FFGD. The Subcontractor shall clearly indicate the cable manufacturer's inclusive warranty period and conditions for the cable being supplied to FFGD. Replacement costs associated with premature cable failure due to inadequate design or faulty manufacturing shall be the full responsibility of the Subcontractor.

4.02 WARRANTY CABLE REPLACEMENT: The following describes the special conditions associated with a cable failure and warranty replacement. It is intended as a guideline should a cable fault occur and FRA determines that it may have resulted from a manufacturing defect.

A. Definition of a cable segment:

1. A cable segment is a single or triplex cable from the termination point on one end to the termination point on the other end.

2. A stand alone single-faulted cable or a single-faulted cable within a triplex bundle that may be direct buried, in PVC conduit, or in a ductbank.

3. If a single conductor of a triplex group has faulted, then the entire triplex bundle (a triplex cable section) is considered failed at that point due to thermal stresses.

B. Test of faulted segment:

1. When a cable segment has failed, FFGD will remove the faulted section.

This faulted segment will be sent by FFGD to an independent testing laboratory for analysis.

2. The independent test laboratory will test the faulted cable segment to determine why the cable failed. If the failure is determined to have resulted due to a manufacturing failure in the insulation or protective jacket, cable replacement by the manufacturer will be handled as noted in (c) below.

C. Cable replacement by the manufacturer:

1. A cable segment determined to have faulted because of a manufacturing defect will be replaced in its entire segment length (single or triplex) by the cable manufacturer. This replacement will include all costs associated with manufacturing, manufacturer's required testing, cable reel, and delivery charges (i.e., f.o.b. FFDG shipping dock).

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PART 5 - SUPPLEMENTARY SPECIFICATION

5.01 ICEA/NEMA Standards Publication for Ethylene-Propylene-Rubber-Insulated Wire and Cable for the Transmission and Distribution of Electrical Energy, ICEA Publication No. S- 68-516, NEMA Publication No. WC8.

5.02 NEMA Standards Publication for Wire and Cable Packaging, WC-26.

5.03 ANSI Standard C2, National Electric Safety Code.

5.04 ANSI Standard C119.4, Connectors for Use Between Aluminum-to-Aluminum or ICEA Publication T-31-610, Guide for Performance Of a Longitudinal Water Penetration Test for Sealed Conductor.

END OF SECTION 16121