Each wire powers one “bus” (copper vertical leg) inside the main service panel. That’s why you usually see two columns of circuit breakers (or fuses) when you open your service panel door.

A short circuit happens suddenly, and the results can be minimal, such as tripped circuits, or it can become hazardous, ...

Old electrical panels and circuits are some of the most neglected aspects of a home or business property, but they have far-reaching consequences for safety and costs. With increasingly ...