My California dryer wall socket has 3 blades shown in picture. I measured across bottom 2 blades = 240VAC. I measured top L-blade with one of the bottom blade = 120V. Is the L-blade a neutral? If yes, why no Ground blade? If the L-blade is Ground instead, then why no Neutral blade?
I tried testing continuity of the center round hole to a nearby 120V regular wall socket's ground, no continuity = center hole not a ground??
I tried testing continuity of the center round hole to a nearby 120V regular wall socket's ground, no continuity = center hole not a ground??
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