Q: You talked about a ground fault circuit interrupter and that it’s necessary in different places in the home. My home was built in the 1950s, and I don’t have ...

A ground fault circuit interrupter (GFCI) protects people from shock, while an arc fault circuit interrupter (AFCI) protects people from fires that could result from electrical arcing of wiring inside ...

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 ...

Ground-fault circuit interrupters (GFCIs) limit the available shock current to personnel by sensing current flow in the neutral and interrupting the circuit at a predetermined value (typically 6mA) ...

There are 15 standardized types of domestic electrical outlet plugs in use worldwide. The standard North American outlet, for example, has two vertical slots and a round hole beneath them for ...