ANSI C80。3-2020涵盖了用作电气系统电线或电缆管道的钢制电气金属管的要求。成品管的标称长度通常为10英尺（3.05米）。外表面采用金属锌涂层或替代防腐涂层进行保护（替代防腐涂层要求见UL 797），内表面采用锌涂层或有机涂层进行保护。

ANSI C80.3-2020 covers the requirements for steel electrical metallic tubing, for use 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 a zinc or organic coating.