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D. All electrical panels, enclosures, raceways, conduits, wireways, boxes, <br />cabinets, etc., shall be fabricated of metal. Nonmetallic substitutes are not <br />' acceptable. This does not apply to buried work. <br />' 2.02 RACEWAYS AND FITTINGS <br />A. All conduits shall be Schedule 80 PVC. Burial depth shall be in accordance <br />with the NEC. <br />2.03 CONDUCTORS <br />A. Conductors shall be copper. Power circuits shall have 600 volt PVC insulation <br />(Underwriters' approved Type THWN). Conductors shall be color coded in <br />accordance with the NEC. <br />2.04 PANELBOARDS <br />05/04 <br />A. Rating <br />1. Panelboard ratings shall be as shown on the Drawings. All panelboards <br />shall be rated for the intended voltage. <br />B. Standards <br />1. Panelboards shall be in accordance with the Underwriter Laboratories, <br />Inc. "Standard for Panelboards" and "Standard for Cabinets and Boxes" <br />and shall be so labeled where procedures exist. Panelboards shall also <br />comply with NEMA Standard for Panelboards and the NEC. <br />C. Construction (NEMA 4XSS) <br />1 . All interiors shall be completely factor assembled with circuit breakers, <br />wire connectors, etc. All wire connectors, except screw terminals, shall <br />be of the anti -turn solderless type and all shall be suitable for copper or <br />aluminum wire of the sizes indicated. <br />2. Interiors shall be so designed that circuit breakers can be replaced <br />without disturbing adjacent units and without removing the main bus <br />connectors and shall be so designed that circuits may be changed <br />without machining, drilling or tapping. <br />3. Branch circuits shall be arranged using double row construction except <br />when narrow column panels are indicated. Branch circuits shall be <br />numbered by the manufacturer. <br />160501 -6 03 -4465 <br />