General Requirements in Hazardous (Classified) Locations

Areas designated as hazardous (classified) shall be properly _____ and shall be available to those authorized to design, install, inspect, maintain, or operate electrical equipment at these locations.

a) cleaned
b) documented
c) maintained
d) all of the above

See answer and applicable Code reference

The correct answer is: b) documented

General requirements for electrical and electronic equipment installed in hazardous (classified) locations can be found in Sec. 500.4 of Art. 500. As noted in Sec. 500.4(A), "All areas designated as hazardous (classified) locations shall be properly documented. This documentation shall be available to those authorized to design, install, inspect, maintain, or operate electrical equipment at the location."

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