3 prong plug types - max-expo.pl
Looking at the cord end without the plug, the left and right wires are the hot wires and the middle wire is the neutral. Black 15 Amp grounding 3-wire AC plug. 2 vertical flat blades In 1999, the National Electric Code began requiring all dryer receptacles to be the four-prong type for increased safety, but homes built prior to ...
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