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So this ancient, ungrounded and live 20A twistlock relic is down my basement.
Can I safely update it, ground it and use it for pinball machines or do I have to rip out the feed all the way from the circuit breakers?
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Quoted from jeffc:I would not trust anyone named electrocute on this matter
Greatest response ever
Quoted from vid1900:Let's see a clear picture of whats inside the box behind the receptacle
Turn off power at breaker
remove cover plate
remove receptacle
light it up bright and show us some focused pics
Did you test it with your meter? Is it 120 or 240v ?
Will do
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Marblehead, MA