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@DeanMacGregor That simply isn't accurate. A MWBC can have 0 V between hot wires. Turning off one breaker won't make it safe to work on. In this case, the 0 V reading indicates a much more dangerous situation. Combine that with, say, a partial-open neutral and a ground fault or two on the same circuit and it's a recipe for disaster.

Robert Chapin
– Robert Chapin

2023-08-24 15:33:30 +00:00
Commented Aug 24, 2023 at 15:33
I see it as a waste of effort. In my own home, all of the MWBC outlets have only one hot wire. So this method would give nothing but false information

Robert Chapin
– Robert Chapin

2023-08-24 16:27:44 +00:00
Commented Aug 24, 2023 at 16:27

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