260125 R0 138k VVoltage Cable PDF

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SPECIFICATION SECTION 260125 138 KV VOLTAGE CABLE

PART 1 1.1

GENERAL

SUMMARY A.

Section Includes Underground 138 kV shielded transmission cable for direct burial below the water table

B.

1.2

Related Sections 1.

Section 003119 - Site Conditions

2.

Section 013300 - Submittal Procedures

3.

Section 016000 - Product Requirements

4.

Section 017000 - Execution and Closeout Requirements

5.

Section 260001 - Electrical Codes and Ordinances

6.

Section 260510 - Wire and Cable

7.

Section 260511 - Cable Installation and Termination

SCOPE OF WORK This section covers the furnishing of all 138 kV voltage power cable for the Nueces Bay project. The information contained in this section applies to facility 138 kV cabling only.

1.3

REFERENCES Cable shall conform and test in accordance with the latest issue of the following applicable codes and standards: A.

AEIC CS7 - Specifications for crosslinked Polyethylene Insulated Shielded Power Cable rated 46 kV through 138 kV

B.

AEIC CS9 - Specifications for extruded insulation power cables and their accessories rated above 46 kV through 345 kV

C.

ASTM B3 - Specification for Soft or Annealed Copper Wire

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SPECIFICATION SECTION 260125 138 KV VOLTAGE CABLE

1.4

1.5

D.

ASTM B8 - Specification for Concentric Lay Stranded Copper Conductors

E.

ASTM B33 - Specification for Tinned Soft or Annealed Copper Wire

F.

ASTM D2275-89 - Standard Test Method for Voltage Endurance of Solid Electrical Insulating Materials Subjected to Partial Discharges on the Surface

G.

IEEE Std 400 - IEEE Guide for Making High Direct Voltage Tests on Power Cable Systems in the Field

H.

NEMA WC 26 - Wire and Cable Packaging

I.

NEMA WC 74 - 5-46 kV Shielded Power Cable for Use in the Transmission and Distribution of Electric Energy

J.

NFPA 70 (NEC) - National Electric Code

SUBMITTALS A.

Submit under provisions of Section 013300 - Submittal Procedures and Section 017000 - Execution and Closeout Requirements.

B.

Provide complete product data.

C.

Manufacturer’s Installation Instructions: Indicate application conditions and limitations of use stipulated by product testing agency specified under regulator requirements.

QUALIFICATIONS Manufacturer: Company specializing in manufacturing the Products specified in this section with minimum 5 years documented experience.

1.6

REQUIREMENTS A.

Conform to requirements of NFPA 70E and National Electrical Safety Code C2.

B.

Furnish products listed and classified by Underwriters Laboratories, Inc. as suitable for purpose specified and shown.

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SPECIFICATION SECTION 260125 138 KV VOLTAGE CABLE

1.7

DELIVERY, STORAGE, AND HANDLING As specified in Section 016000 - Product Requirements

1.8

ACCEPTABLE SUPPLIERS High Voltage Power Cable:

1.9

Brugg ABB Southwire Company The Kerite Company

REFERENCE DRAWINGS The following drawings are being submitted as part of this specification (Attachment A): A.

General Arrangement Plan

D013232-SRWL00001, S01

B.

Underground 138 kV Cable

D013232-SUUE00028, S01

PART 2 2.1

PRODUCTS

SITE CONDITIONS The underground 138 kV shielded transmission cable design shall include the site data in Section 003119 - Site Conditions.

2.2

HIGH VOLTAGE UNDERGROUND CABLE Underground 138 kV shielded transmission cable shall have the following features: A.

Stranded copper conductor, 1876 amps at 100% load factor

B.

Conductor shield

C.

Ethylene propylene rubber (EPR) insulation, 90°C, 100%, or cross-liked polyethylene (XLPE), 90°C, 850 mils

D.

Semi-conducting extruded insulation shield, which is easily removable for termination

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SPECIFICATION SECTION 260125 138 KV VOLTAGE CABLE

2.3

E.

5.0 mil bare copper tape helically applied directly over the semiconducting insulation screen covering, applied with a 20% minimum overlap to provide 100% coverage

F.

Extruded linear low density polyethylene (LLDPE) outer jacket

G.

Moisture barrier for XLPE cable

H.

Fault current = 63 kA sym.

I.

Ambient soil temperature: 20°C

J.

Soil thermal resistivity: 54 (°C-cm/watt)

K.

Bil = 650 kV

PACKAGING A.

Cable ends shall be fully sealed to prevent moisture entering the cable.

B.

Cable shall be reeled with three (3) equal lengths in parallel.

C.

Cable reels shall be as specified in NEMA WC6. Where the cable drum diameters do not meet the NEMA standards, written guarantee of suitability of reels supplied for packaging and transportation shall be provided.

D.

Lagging material shall be 3-ply waterproof plywood or approved equal.

E.

Cable reels shall be non returnable and preferably of wood construction.

F.

The following reel identification is required: 1.

Reel Number

2.

Cable Description

3.

Cable Length

4.

Gross Weight

5.

Manufacturer Name

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SPECIFICATION SECTION 260125 138 KV VOLTAGE CABLE

2.4

6.

Rolling Direction

7.

Storage Restrictions

INSTALLATION Submit quotation for installation of 138 kV cable. Price to include excavation, termination, and backfill.

PART 3

EXECUTION

Not Used.

END OF SECTION

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