The multi-wire branch is here to stay; so is ground fault protection. But we should unite these technologies only when it’s a good match. Ground-fault protection and the multi-wire branch circuit ...

A friend who was buying an older house was concerned about electrical safety and asked for my opinion as an electrical engineer. All of the AC receptacles (also called outlets) in the house were the ...

People often use these electrical terms interchangeably, but there’s a difference: A cable assembles two or more wires in a ...

Copper metal is usually at the core of any electrical wire, and this carries the current for the entire device. Wire insulation is another crucial but understated component. Common wire is insulated ...