American National Standard for Electrical Metallic Tubing—Steel (EMT-S) covers the requirements for using steel electrical metallic tubing as a raceway for wires or cables of an electrical system. Finished tubing is typically furnished in nominal 10-ft. (3.05-m) lengths. It is protected on the exterior surface with a metallic zinc coating or alternate corrosion protection coating (see UL 797 for alternate corrosion protection coating requirements) and on the interior surface with zinc or organic coating.
Revisions include updated text and tables. Users of this Standard include building specifiers, original equipment manufacturers that use steel conduit, and prefabricated wiring assembly manufacturers.
The NEMA Building Infrastructure Division, as the secretariat of ANSI ASC C80, Raceways for Electrical Wiring Systems is looking for industry experts specifically in the categories of “Users” and “General Interest” to participate in Standards development activities. Please contact Kezhen.Shen@nema.org if you are interested and indicate your interest category and area of expertise.
It is available on the NEMA Standards Store for US$80.