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

2. Ground-fault circuit-interrupter The ground-fault circuit- interrupter (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.

3. 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.

4. 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).

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

6. 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

7. Ground-fault circuit-interrupter The more receptacles any one GFCI protects The more susceptible it is to "phantom tripping,“ –Resulting in shutting off power. Due to tiny, normal fluctuations in current flow.

8. 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

9. 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.

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