People often use these electrical terms interchangeably ... with or without a ground wire. This is used for thermostat wiring ...

The ground-fault current path must have adequate ... You can't use ceiling support wires or the ceiling grid to support raceways or cables. You can support electrical wiring within the cavity of a ...

The ground wire is what's missing in a knob and tube electrical system," added Ticknor. Another clue are the outlets. Knob and tube wiring has two prongs outlets, not three. In some knob and tube ...