When you think about it, not having a third-wire ground at all is the ultimate ground fault. A GFCI does not require an ...

Imagine you are sitting snug in your house on a stormy evening when, all of a sudden, the lights start flickering, and there's a low buzzing noise. You brush it off, but without your knowledge, an ...

Just 40 milliamps of AC current (or 300–500 mA of DC at high voltage) can cause cardiac fibrillation. What a ground-fault circuit-interrupter (GFCI) does is constantly monitor the current ...