SECTION 16121

MEDIUM VOLTAGE CABLE

PART 1 GENERAL

SECTION INCLUDES

Medium voltage cable.

Cable terminations.

REFERENCES

ANSI/IEEE C2 - National Electrical Safety Code.

ANSI/NFPA 70 - National Electrical Code.

IEEE 48 - Test Procedures and Requirements for High-Voltage Alternating-Current Cable Terminations.

NEMA WC 3 - Rubber-Insulated Wire and Cable for the Transmission and Distribution of Electrical Energy.

NEMA WC 5 - Thermoplastic-Insulated Wire and Cable for the Transmission and Distribution of Electrical Energy.

NEMA WC 7 - Cross-Linked-Thermosetting-Polyethylene-Insulated Wire and Cable for the Transmission and Distribution of Electrical Energy.

NEMA WC 8 - Ethylene-Propylene-Rubber-Insulated Wire and Cable for the Transmission and Distribution of Electrical Energy.

SUBMITTALS

Submit under provisions of Section [01300] [_____].

Product Data: Provide for cable, terminations, and accessories.

Test Reports: Indicate results of cable test in tabular form and in plots of current versus voltage for incremental voltage steps, and current versus time at 30 second intervals at maximum voltage.

Manufacturer's Instructions:	Indicate application conditions and limitations of use stipulated by Product testing agency specified under Regulatory Requirements.

Manufacturer's Instructions:	Include instructions for storage, handling, protection, examination, preparation, installation, and starting of Product.

PROJECT RECORD DOCUMENTS

Submit under provisions of Section [01700] [_____].

Accurately record actual sizes and locations of cables.

OPERATION AND MAINTENANCE DATA

Submit under provisions of Section [01700] [_____].

Maintenance Data: Include instructions for testing and cleaning cable and accessories.

QUALIFICATIONS

Manufacturer: Company specializing in manufacturing Products specified in this Section with minimum [three] [_____] years [documented] experience.

Installer: Company specializing in installing Products specified in this Section with minimum [three] [_____] years [documented] experience.

REGULATORY REQUIREMENTS

Conform to requirements of [ANSI/NFPA 70] [ANSI/IEEE C2].

Furnish products listed and classified by [Underwriters Laboratories, Inc.] [testing firm acceptable to authority having jurisdiction] as suitable for purpose specified and shown.

FIELD SAMPLES

Provide under provisions of Section [01400] [_____].

Provide field sample of [____________________], [two] [___] each at [2] [___] feet ([610] [___] mm) long.

DELIVERY, STORAGE, AND HANDLING

Deliver, store, protect, and handle Products to site under provisions of Section [01600] [_____].

Accept cable and accessories on site in manufacturer's packaging. Inspect for damage.

Store and protect in accordance with manufacturer's instructions.

Protect from weather. Provide adequate ventilation to prevent condensation.

PROJECT CONDITIONS

Verify that field measurements are as shown on Drawings.

Verify routing and termination locations of cable bank

prior to rough-in.

Cable routing is shown on Drawings in approximate locations unless dimensioned. Route as required to complete wiring system.

PART 2 PRODUCTS

MANUFACTURERS

[______________________________] Model [__________].

[______________________________] Model [__________].

[______________________________] Model [__________].

Substitutions: Under provisions of Section [01600] [_____].

MEDIUM VOLTAGE CABLE

Description:	[NEMA WC 3; rubber] [NEMA WC 5; thermoplastic] [NEMA WC 7; cross-linked polyethylene] [NEMA WC 8; ethylene propylene rubber] insulated cable.

Voltage: [5] [15] [___] kV, [grounded] [ungrounded].

Conductor: [Copper] [Aluminum], [compact round] [concentric], stranded, with [foil] [wire-woven] conductor shield.

Construction: [Single] [Three] conductor with metal [wire] [tape] insulation shielding.

Insulation Jacket: PVC, [___] mils ([___] mm) minimum thickness.

Armor Material: [Steel] [Aluminum].

Armor Design: [Interlocked metal tape] [Corrugated tube] [Smooth tube].

Armor Jacket: [None] [PVC] [_____].

POTHEADS

Manufacturers:

[______________________________] Model [__________].

[______________________________] Model [__________].

[______________________________] Model [__________].

Substitutions: Under provisions of Section [01600] [_____].

Description:	IEEE 48; Class 1 termination. Pothead with porcelain insulators, cable connector and aerial lug, sealed cable entrance and support, and insulating compound.

Conductors: [One] [Three].

CABLE TERMINATIONS

Manufacturers:

[______________________________] Model [__________].

[______________________________] Model [__________].

[______________________________] Model [__________].

Substitutions: Under provisions of Section [01600] [_____].

Description:	IEEE 48; Class 2 porcelain insulator cable terminator in kit form.

CAST EPOXY CABLE TERMINATION

Manufacturers:

[______________________________] Model [__________].

[______________________________] Model [__________].

[______________________________] Model [__________].

Substitutions: Under provisions of Section [01600] [_____].

Description:	IEEE 48; Class 1, cast epoxy cable termination in kit form with stress cone, shield ground connection, wet porcelain rain shield for outdoor units, epoxy resin molding material, and accessories and molds required for proper application.

MODULAR CABLE TERMINATION

Manufacturers:

[______________________________] Model [__________].

[______________________________] Model [__________].

[______________________________] Model [__________].

Substitutions: Under provisions of Section [01600] [_____].

Description:	IEEE 48; Class 1, molded rubber cable termination in kit form with stress cone, ground clamp, non-tracking rubber skirts, [load break] connector, rubber cap, and aerial lug.

TAPE TERMINATION

Manufacturers:

[______________________________] Model [__________].

[______________________________] Model [__________].

[______________________________] Model [__________].

Substitutions: Under provisions of Section [01600] [_____].

IEEE 48; Class 1, tape termination kit with semi- conductive tape, stress control tape, splicing tape, vinyl plastic tape, stress cone, mechanical ground straps, and cable preparation kit.

FIREPROOFING TAPE

Manufacturers:

[______________________________] Model [__________].

[______________________________] Model [__________].

[______________________________] Model [__________].

Substitutions: Under provisions of Section [01600] [_____].

PART 3 EXECUTION

EXAMINATION

Verify installation conditions under provisions of Section [01039] [_____].

Verify that [conduit] [duct] [trench] is ready to receive cable.

PREPARATION

Use swab to clean [conduits] [and] [ducts] before pulling cables.

INSTALLATION

Install cable and accessories in accordance with manufacturer's instructions.

Avoid abrasion and other damage to cables during installation.

Use suitable lubricants and pulling equipment.

Do not exceed cable pulling tensions and bending radius.

Ground cable shield at each termination and splice.

Install cables in manholes along wall providing longest route.

Arrange cable in manholes to avoid interference with duct entrances.

Fireproof cables in manholes using fireproofing tape in half-lapped wrapping. Extend fireproofing one inch (25 mm) into duct.

FIELD QUALITY CONTROL

Field [inspection and] testing will be performed under provisions of Section [01400] [_____].

Inspect exposed cable sections for physical damage.

Inspect cable for proper connections as shown on Drawings.

Inspect shield grounding, cable supports, and terminations for proper installation.

Perform DC high potential test of each conductor in accordance with NEMA [WC 3] [WC 5] [WC 7] [WC 8].

Connect untested conductors in circuit to ground during test.

Apply test voltage in at least eight equal increments to maximum test voltage.

Record leakage current at each increment, allowing for charging current decay.

Hold maximum test voltage for ten minutes.

PROTECTION

Protect installed cables from entrance of moisture.

END OF SECTION