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  • Stands for Ground Fault Circuit Interrupter.
  • Also known as a GFI or ground fault interrupter
  • Used to protect against ground faults, which occur when a person comes into contact with a live electrical wire. This may be caused by worn insulation on a wire or by operating a faulty appliance or power tool.
  • The GFCI interrupts power quickly enough to help prevent a lethal dose of electricity.
  • To turn the GFCI back on after it trips, push the reset button located in the middle of the switch.
  • They can be installed as a receptacle or at the main power panel.

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