Provide a source of ground-fault current during line-to-ground faults. Permit the connection of phase-to-neutral loads when desired. If a single line-to-ground fault occurs on an ungrounded or ...

Figure 1 For many decades, home AC-line wiring used a basic two-wire receptacle ... and there is no current flow through the ground wire. When there is a fault such as current leaking from one of the ...

The OSHA standard for ground fault protection on construction sites requires the provision of approved GFCIs for all 120V, single-phase, 15A and 20A receptacle outlets that aren't part of a building ...