Branch Circuits & WiringQuestion 179 of 521
Couplings and connectors used with electrical metallic tubing (EMT) in a wet location must be what?
a.Threaded
b.Set-screw type
c.Painted
d.Listed for use in wet locations
Explanation
Section 358.42 requires EMT couplings and connectors used in wet locations to be listed for wet locations, commonly the raintight compression type. Plain set-screw fittings are not raintight, threading does not apply to EMT couplings, and paint does not make a fitting suitable for wet locations.
Law Reference: 2023 NEC §358.42Practice all 521 questions free — no signup required.
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