The idle portion of The Thermal Club IndyCar Grand Prix went dark on Sunday as the live FOX broadcast disappeared for the ...

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.

Read more: 5 Things Harbor Freight Employees (Probably) Won't Tell You Circuit breakers are one of the components inside the main electrical service panel inside your home -- some people refer to ...

Even if you aren’t an electronics person, you probably have a working knowledge of circuit breakers. When the lights go out, you find the circuit breaker and flip it back to the on position.