So you're saying the A/C units were wired bypassing the breaker straight from the mains? That doesn't sound safe to me, and at a guess would violate safety codes of wherever you're at. I'm not an ...

We recently had a new dishwasher installed to replace a 15-year-old model that had failed and was not worth repairing (and we were never really happy with it, anyway). For a modest fee, the appliance ...

You can use a simple battery-poweredcircuit to detect whether anac-mains wire is live without makingany electrical contact with it. The circuituses a CD4011 NAND gate’s highinput impedance to sense a ...