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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 />

PART 2 PRODUCTS<br />

2.1 MATERIALS<br />

A. GENERAL: Exposed wall recessed pull and junction boxes shall be 304 stainless steel.<br />

Pull boxes in floors shall be of galvanized malleable cast iron, with gasketed covers.<br />

Exposed pull boxes or junction boxes installed outdoors, per NEMA 250 shall be<br />

weatherproof and shall be provided with watertight gasketed covers fastened with<br />

stainless steel screws.<br />

B. NEMA 4X, 304 stainless steel for all other locations.<br />

C. PULL AND JUNCTION BOXES: Metal construction conforming to National Electrical<br />

Code and ANSI/NEMA OS 1. Provide hinge type for sheet metal boxes of 12" or larger<br />

in any dimension.<br />

D. FLUSH-MOUNTED PULL BOXES: Provide overlapping covers with flush-head cover<br />

retaining screws.<br />

PART 3 EXECUTION<br />

3.1 INSTALLATION<br />

A. Use separate pull boxes and junction boxes for electric power, control and<br />

communication systems.<br />

B. Install pull boxes and junction boxes where required by the National Electrical Code and<br />

wherever required to overcome mechanical difficulties.<br />

C. Install pull boxes in interior conduit at not more than 100' apart when conduit runs are not<br />

broken by junction or outlet boxes.<br />

D. Pull and junction boxes shall be accessible and not buried.<br />

E. Do not install boxes back to back in walls and provide a minimum of 6" separation,<br />

except in acoustic-rated walls, provide 24" separation.<br />

F. Support boxes independently of conduit except for cast boxes that is connected to two<br />

rigid metal conduits, both supported within 12" of box.<br />

G. Junction boxes shall have terminal strips/distribution blocks for splicing conductors<br />

where approved by the Engineer or as shown/specified on the plans. Terminal strips shall<br />

be 600V, NEMA rated manufactured by Allen-Bradley, Phoenix Contact or approved<br />

equal. Distribution blocks shall be per Section 26 05 19.01, “Low Voltage Electrical<br />

Power Conductors and Cables”.<br />

END OF SECTION<br />

May 18, 2012<br />

Pull and Junction Boxes for Electrical Systems<br />

Revision 0 26 05 33.04-2

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