Inductive voltage probe going off

Old 11-19-03, 01:14 PM
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Inductive voltage probe going off

What does it mean when the 3-light circuit tester shows no lights, both breakers of a circuit with a shared return are off, but the inductive voltage probe still shows current at an outlet until a third breaker is switched off?

(always have a backup!)

Does it mean that the shared return got shared again for another circuit. ?!?
Old 11-19-03, 02:37 PM
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Inductance is cool

It turns out one leg of the shared return circuit ran parallel to that third circuit for a while. The third circuit was powering the filters in my koi-filled fish tanks. Those filters pump water by using magnetic impellers.

Turn fish filters off on circuit #3, inductive voltage probe stops going off on circuit #1 & 2.

Probably doesn't help that circuit #3 was put in by someone who didn't believe in grounding anything, so everything runs off plug-in GFCIs.
Old 11-19-03, 05:08 PM
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