344 – Rigid Metal Conduit: Type RMC

344.10(A) – Uses Permitted of Red Brass RMC

Change at a Glance:

Revision to clarify that red brass RMC is not restricted to just underground or swimming pool applications.

344.10 Uses Permitted.

(A) Atmospheric Conditions and Occupancies.
(1) Galvanized Steel and, Stainless Steel, and Red Brass RMC. Galvanized steel and, stainless steel, and red brass RMC shall be permitted under all atmospheric conditions and occupancies.
(2) Red Brass RMC. Red brass RMC shall be permitted to be installed for direct burial and swimming pool applications.
(2) (3) Aluminum RMC. Aluminum RMC shall be permitted to be installed where approved for the environment. Rigid aluminum conduit encased in concrete or in direct contact with the earth shall be provided with approved supplementary corrosion protection.
(3) (4) Ferrous Raceways and Fittings. Ferrous raceways and fittings protected from corrosion solely by enamel shall be permitted only indoors and in occupancies not subject to severe corrosive influences