Electrical Construction & Maintenance

Code Q&A: Wiring Methods Allowed in Hazardous Locations

A. Only the following wiring methods are permitted in a Class I, Div. 1 location [501.10(A)]: (a) Threaded rigid metal conduit (RMC) or intermediate metal conduit (IMC) with explosionproof fittings.
Electrical Construction & Maintenance

Code Q&A: Class II, Division 1 Wiring Methods

A. The following wiring methods can be installed in a Class II, Division 1 location [Sec. 502.10 (A)]: (Figure) Wiring methods that can be installed in a Class II, Division 1 location. (1) General. (1 ...