Support Requirements for RMC

Horizontal runs of RMC supported by openings through _____ at intervals not exceeding 10 ft and securely fastened within 3 ft of termination points shall be permitted.

a) walls
b) trusses
c) rafters
d) framing members

See answer and applicable Code reference

The correct answer is: d) framing members

Securing and supporting requirements for RMC are outlined in Sec. 344.30 of the 2011 NEC. The rule

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