NEMA - National Electrical Manufacturers Association

Includes standards dealing with rating, testing performance, manufacture, and applications of a wide range of electrical equipment: controls for electric water heaters; oil burner controls; electric baseboard heaters; conduit and cable; high voltage insulators; industrial storage bateries; high-voltage fuses; power switch gear assemblies; electrical connectors; washer head bolts and nuts; plastic tree guards; guide to pin and sleeve plugs, receptables, and connectors; smoke detectors; coaxial communication cable; X-ray tubes; and installation procedures.