NEC articles 501, 502, and 503 cover the installation of _______ wiring in hazardous (classified) locations. This system is designed to prevent the ignition of a surrounding explosive atmosphere when arcing occurs within the electrical system, and has three classes.

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Multiple Choice

NEC articles 501, 502, and 503 cover the installation of _______ wiring in hazardous (classified) locations. This system is designed to prevent the ignition of a surrounding explosive atmosphere when arcing occurs within the electrical system, and has three classes.

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