Intrinsically Safe Apparatus

Intrinsically safe apparatus, associated apparatus, and other equipment must be installed in accordance with the _____ drawing(s).

a) approved
b) control
c) identified
d) any of the above

See answer and applicable Code reference

The correct answer is: b) control

Article 504 of the 2011 NEC focuses on the requirements for Intrinsically Safe Systems. As noted in Sec. 504.10(A), "Intrinsically safe apparatus, associated apparatus, and ot

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