Groundfault circuitinterrupter Receptacles Electrical Shock Protection ReceptaclesPart 2

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Ground-fault circuit-interrupter Receptacles • Electrical Shock Protection • (Receptacles-Part 2) • W. C. “Buster”

Ground-fault circuit-interrupter Receptacles • Electrical Shock Protection • (Receptacles-Part 2) • W. C. “Buster” Hounshell • Spring 2002

Ground-fault circuit-interrupter • The ground-fault circuitinterrupter (GFCI) receptacle protects against electrical shock caused by

Ground-fault circuit-interrupter • The ground-fault circuitinterrupter (GFCI) receptacle protects against electrical shock caused by a faulty appliance, or a worn cord or plug • It senses small changes in current flow and can shut off power in as little as 1/40 of a second.

Ground-fault circuit-interrupter • GFCls are now required in bathrooms, kitchens, garages, crawl spaces, unfinished

Ground-fault circuit-interrupter • GFCls are now required in bathrooms, kitchens, garages, crawl spaces, unfinished basements, and outdoor receptacle locations • Consult your local codes for any requirements regarding the installation of GFCI receptacles.

Ground-fault circuit-interrupter • The GFCI receptacle may be wired to protect only itself (single

Ground-fault circuit-interrupter • The GFCI receptacle may be wired to protect only itself (single location) • Or it can be wired to protect all receptacles, switches, and light fixtures from the GFCI "forward" to the end of the circuit (multiple locations).

Ground-fault circuit-interrupter • Most GFCls use standard screw terminal connections • Some have wire

Ground-fault circuit-interrupter • Most GFCls use standard screw terminal connections • Some have wire leads and are attached with wire connectors

Ground-fault circuit-interrupter • Because the body of a GFCI receptacle is larger than a

Ground-fault circuit-interrupter • Because the body of a GFCI receptacle is larger than a standard receptacle • Small crowded electrical boxes may need to be replaced with more spacious boxes

Ground-fault circuit-interrupter • Because the GFCI is so sensitive • It is most effective

Ground-fault circuit-interrupter • Because the GFCI is so sensitive • It is most effective when wired • To protect a single location.

Ground-fault circuit-interrupter • The more receptacles any one GFCI protects • The more susceptible

Ground-fault circuit-interrupter • The more receptacles any one GFCI protects • The more susceptible it is to "phantom tripping, “ • Shutting off power • Because of tiny, normal fluctuations in current flow.

Single Location Protection • A GFCI wired for single-location protection (shown from the back)

Single Location Protection • A GFCI wired for single-location protection (shown from the back) has hot and neutral wires connected only to the screw terminals marked LINE • A GFCI connected for single-location protection may be wired as either an end-of-run • Or middle-of-run configuration

Multiple -Location Protection • A GFCI wired for multiple-location protection (shown from the back)

Multiple -Location Protection • A GFCI wired for multiple-location protection (shown from the back) • Has one set of hot and neutral wires connected to the LINE pair of screw terminals • And the other set connected to the LOAD pair of screw terminals.

Multiple- Location Protection • A GFCI receptacle connected for multiple-location protection may be wired

Multiple- Location Protection • A GFCI receptacle connected for multiple-location protection may be wired only as a middle-of-run configuration.