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Q. What are the NEC requirements for installing MC cable for exposed work?
See answer below.
A. The requirements for installing MC cable for exposed work are found in Sec. 330.15.
Section 330.15 requires thay exposed runs of Type MC cable, except as provided in Sec. 300.11(B), must closely follow the surface of the building finish or running boards. Type MC cable installed on the bottom of floor or ceiling joists must be secured at every joist and not be subject to physical damage.
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