Dead front is defined in Article 100 of the NEC as being “without live parts exposed to a person on the operating side of the equipment.” Section 408.38 requires that panel boards be mounted in cabinets, cutout boxes or enclosures designed for the purpose and shall be dead front. The term “dead front” is used in other places in the NEC, but basically, the NEC requires distribution panels, panel boards (load centers), switchboards (stage and theater) be constructed so that switches, circuit breakers and other electrical components can be operated without the user being exposed to live parts.
Friday, December 13, 2013
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