Anyone who's lived in a home or apartment has probably heard the terms "fuse box" or "circuit breaker" before. If you ever ...

Related: How to Reset a Tripped Circuit Breaker The breaker panel, or electrical box, serves as the connection between the local power grid outside the home and the wiring inside the home.

See? Good and evil. An RCD (or GFCI in the States) is a kind of circuit breaker that trips when the amount of current in the hot and neutral mains power lines aren’t equal and opposite ...