Forum Discussion
DrewE
Nov 01, 2021Explorer II
I suspect you have an open hot wire, or a very nearly open hot wire, and are measuring the voltage with a high-impedance voltmeter (such as a typical digital multimeter) that is showing you the "phantom" voltage in the wire due to capacitive and/or inductive coupling.
"Open hot wire" could mean something as simple as a blown fuse or tripped breaker on one leg of the circuit. For breakers, they are supposed to be controlled with a two-pole breaker such that both legs are disconnected when either is overloaded, but it's not beyond the realm of believability that your friend's place is improperly set up with two single pole breakers. For fuses, the legs are independent of each other.
"Open hot wire" could mean something as simple as a blown fuse or tripped breaker on one leg of the circuit. For breakers, they are supposed to be controlled with a two-pole breaker such that both legs are disconnected when either is overloaded, but it's not beyond the realm of believability that your friend's place is improperly set up with two single pole breakers. For fuses, the legs are independent of each other.
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