All questions and answers are based on the 2011 NEC. Q. What wiring methods does the NEC permit in a Class I, Div. 2 location? A. Only the following wiring methods are permitted within a Class I, Div. 2 location [501.10(B)(1)]: 1) Wiring methods permitted in Class I, Div. 1 locations [501.10(A)]. 2) Enclosed gasketed busways and enclosed gasketed wireways. 3) PLTC and Type PLTC-ER cable terminated with listed fittings in accordance with Art. 725. 4) ITC and ITC-ER cable ...
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