The apartment I will be moving into on Wednesday has three-prong receptacles in all the rooms. My GFI receptacle tester ($5 from the hardware store) tells me that most of these receptacles have an ...
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 ...