Article 406 covers the rating, type, and installation of receptacles and attachment plugs. It also covers flanged surface inlets [Sec. 406.1], as shown in Fig. 1. Fig. 1. The rating, type, and ...

Another handy Article in the National Electrical Code (NEC) every electrical apprentice must master is Art. 406, which covers a few basic rules to remember, such as receptacle rating requirements, ...