Brilliant Gfci Ground Wire
Turn the power back on then carefully use a multimeter to find the live wires.
Gfci ground wire. You ve no doubt seen these before at bathrooms or kitchens and you can read more about these on a previous post here. Gfci stands for ground fault circuit interrupter. Gfci also known as ground fault circuit interrupter is a protective device which automatically detects the ground faults and leakage current and provides personal protection against electrocution.
Gfci as an outlet receptacle combo or circuit breaker automatically cuts off the main power supply within millisecond against electric shock. Leave the ground terminal on the gfci unconnected. The national electrical code now requires ground fault circuit interrupter gfci receptacles to meet electrical code in kitchens bathrooms and outdoors among other potentially wet places at least for new installations.
This device is installed in areas around water to provide extra protection against accidental electrical shock.