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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 MINI POWER STATION<br />

A. Mini power station shall be in a NEMA 3R, 316 stainless steel enclosure. Mini power<br />

station shall include:<br />

1. a 10KVA, 480V-120/240V step-down transformer. Transformer shall have<br />

copper windings.<br />

2. A 120/240V, single phase panelboard with a main circuit breaker and feeder<br />

breakers. Circuit breakers shall be of bolt-on type. Refer to plans for additional<br />

information.<br />

B. Mini power station panel shall have an interrupting capacity of not less than 18,000<br />

Amps, RMS symmetrical.<br />

C. Mini power station shall be as manufactured by Square D Catalog model no.<br />

MPZB10S40FSS or by Eaton Catalog model no. P48G11S10SS, no equal.<br />

2.3 CIRCUIT BREAKERS<br />

A. Panelboards shall be equipped with circuit breakers.<br />

B. Circuit breakers shall be molded case, bolt in type. Series rating of breakers is not<br />

acceptable.<br />

C. Single pole circuit breakers serving fluorescent lighting loads shall have the SWD<br />

marking. Circuit breakers serving air conditioning branch loads shall be U.L. listed as<br />

type HACR.<br />

D. Each circuit breaker used in 2<strong>08</strong>Y/120 Volt and 120/240V Panelboards shall have an<br />

interrupting capacity of not less than 18,000 Amps, RMS symmetrical. Each circuit<br />

breaker used in 480V Panelboards shall have an interrupting capacity of not less than<br />

65,000 Amps, RMS symmetrical.<br />

E. Circuit breakers shall be manufactured by the panelboard manufacturer.<br />

F. The panelboard and circuit breaker interrupting capacities and rating shall be equal to or<br />

greater than the fault currents available to each panelboard. Series rating of breakers<br />

shall not be permitted.<br />

G. Circuit breakers installed in existing equipment shall match make and manufacturer of<br />

existing equipment where being installed.<br />

2.4 SURGE PROTECTION DEVICES<br />

A. For Electrical Equipment Rack<br />

1. Surge Protection Device Description: IEEE C62.41-compliant, externally<br />

mounted, wired-in, solid-state, parallel-connected, modular (with fieldreplaceable<br />

modules) type, with sine-wave tracking suppression and filtering<br />

modules, UL 1449, third edition Type 2, short-circuit current rating matching or<br />

exceeding the panelboard short-circuit rating, and with the following features and<br />

accessories:<br />

a. Fuses, rated at 200-kA interrupting capacity.<br />

May 18, 2012<br />

Lighting and Branch Panelboards<br />

Revision 0 26 24 16.02 - 3

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