Consolidates the descriptions and applications, features and test criteria, and design tests of all NEMA-type enclosures (except for rotary-type apparatus) into a single document. Does not cover manufacturing standards for specific products. For manufacturing standards for a specific product, refer to the following standards: Busway-BU 1; Pin and Sleeve-FB 11; Switchboards-PB 2; Switches-KS 1; Traffic Control Systems-TS 1; Transformers-DC 20, TR 1; Arc Welding-EW1, EW3.