3 ms·
This article only scratches the surface. There are at least 241 NEMA (National Electrical Manufacturers Association) configurations in the USA. Each serves a pu
by CapitalistCartr 5y ago
This article only scratches the surface. There are at least 241 NEMA (National Electrical Manufacturers Association) configurations in the USA. Each serves a purpose. Each voltage/amperage combo gets one in straight blade and locking. This prevents people from plugging into something dangerous. Also, there is support for obsolete stuff, such as two-wire.