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Bid Package 08 North Well Field - Garney Construction

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Colorado River Municipal Water District<br />

Raw Water Supply <strong>Well</strong> Sites<br />

Ward County <strong>North</strong> <strong>Well</strong> <strong>Field</strong><br />

2.2 WIRE MARKING<br />

A. Wire marking shall be in accordance with the National Electrical Code Article 310 and<br />

shall be printed on the wire insulation at 2 foot intervals. The printing method used shall<br />

be permanent and the color shall sharply contrast with the jacket color.<br />

B. Wire marking shall include the U.L. label and necessary identification, including the<br />

Manufacturer, the number of conductors, size, conductor insulation type, sun-resistance,<br />

and other pertinent information.<br />

2.3 CONDUCTORS AND CABLES<br />

A. SINGLE CONDUCTOR CABLES: Conductor with thermoplastic insulation rated at 600<br />

volts and insulated with type XHHW-2 insulation. Wire shall be water tank tested and<br />

approved as machine tool wire, in accordance with National Machine Tool Builders<br />

Association. Wire in light fixture channels and other special locations shall be as<br />

specifically noted for temperature in NEC Article 300. Conductors 38 or larger and<br />

conductors #14 shall be stranded. Wire shall be manufactured by Southwire, Okonite,<br />

Encore, General Cable, or Houston Wire & Cable.<br />

B. GROUND WIRE: Ground wire shall be Class B stranded tin-plated conductor without<br />

insulation in all cases where a single ground wire is indicated to be installed in a conduit<br />

with no other conductors in the conduit, or where the ground wire is directly buried in<br />

earth or concrete. In all other cases, insulate ground wire with green insulator as<br />

specified for low voltage wire.<br />

C. PAIRED SHIELDED CABLE: Individually and overall shielded 18 gauge, 7/28<br />

stranded, tinned copper conductors with .021" extruded PVC; .004" nylon insulation<br />

twisted into pairs, stranded into a core and enclosed by a non-hygroscopic core tape,<br />

100% coverage, helically wound, aluminum foil shield, drain wire, and .050" minimum<br />

extruded PVC jacket. Pairs shall be black/red or black/white numbered. Cables shall be<br />

600 volts in accordance with NEC-725 and IEEE 383 and shall be suitable for wet<br />

location and cable tray rated. Cables shall be manufactured by Alpha, Okonite, General<br />

Cable, Southwire, Belden, or Houston Wire & Cable.<br />

2.4 WIRE CONNECTIONS AND DEVICES<br />

A. CONNECTORS, COMPRESSION, COPPER, 600 VOLT: As manufactured by Burndy,<br />

Thomas & Betts, or Ideal Industries; of the appropriate hole sizes and spacing which are<br />

in accordance with NEMA standards; two (2) holes in the tongue for use on conductor<br />

sizes 250 kcmil or larger; not required for connections to the circuit breakers in the<br />

lighting and/or receptacle panels. All compression connectors shall be long-barrel type,<br />

no exceptions.<br />

B. 600 VOLT PLASTIC TAPE: Minnesota Mining & Manufacturing Company, No. 35.<br />

May 18, 2012<br />

Low Voltage Electrical Power Conductors & Cables<br />

Revision 0 26 05 19-3

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