When installing heating cables in concrete or poured masonry floors, leads shall be protected where they leave the floor by ________ or by other approved means.
A) rigid metal conduit (RMC)
B) intermediate metal conduit (IMT)
C) rigid nonmetallic conduit
D) electrical metallic tubing (EMT)
E) any of the above
See the answer below.
Answer: E
Article 424 covers fixed electric equipment used for space heating. As specifically noted in Sec. 424.44(C), when installing heating cables in concrete or poured masonry floors, “Leads shall be protected where they Ieave the floor by rigid metal conduit, intermediate metal conduit, rigid nonmetallic conduit, electrical metallic tubing, or by other approved means.”
Owen is the owner and president of National Code Seminars and the holder of master electrician certifications in 46 states. He can be reached at [email protected].
