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Mapj1:
... if you could cut the load in half and stick a meter half way along - and with an old fashioned bar type electric heater maybe you could, that point would be equally far from the original L and N, and so at 120 V to earth or so.
mapj1:
Welcome to the new place, glad you made it OK :D
More importantly, did my answer actually make sense?
3 phase is more complex, as the currents from the three single phases to some degree will cancel, but the concept remains the same.
Dave Newton:
Maybe this image will help clarify the worst case Neutral voltage you should ever find without a fault.
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