Ground-fault interrupter , electrical current

As indicated in Table 5.1, it takes very little current to cause electrical shock and even loss of life. This is why ground fault circuit interrupters (GFCIs) are required by the NEC for convenience outlets in certain areas of homes or facilities. 

GF C I, or G F I- Ground Fault Circuit Interrupter- an ultra sensitive plug designed to shut off all electric current. Used in bathrooms, kitchens, exterior waterproof outlets, garage outlets, and "wet areas". Has a small reset button on the plug. 

Ground-fault circuit interrupter A device whose function is to interrupt the electric circuit to the load when a fault current to ground exceeds some predetermined value that is less than that required to operate the overcurrent protective device of the supply circuit. 

Gross, T.A. 1979. People-protecting three-phase ground fault current interrupters. Plant Electrical Systems. October/November. 

Electrical equipment in process facilities is often exposed to rain and process fluids. Therefore it is important to use Ground Fault Circuit Interrupters (GFCIs) in these situations. These are devices that will trip and disconnect a circuit when the leakage current to ground exceeds approximately 5 mUliamps—below any personnel hazard level. The speed of response generally is less than 0.05 seconds for 15—20 amp units. GFCIs should be used for the following applications ... 

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