Gfci

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History of GFCI requirements in the NEC


The GFCI was marketed in 1962 as a self-contained unit, to be wired in series with a load. The first circuit breaker type was introduced around 1968, and the first receptacle type in 1972.


1968 NEC * GFCI protection for underwater pool lights was required.


1971 NEC * GFCI protection was required for storable pools, for pool receptacles, and for some feeders. It becomes an option for protection of receptacles at construction sites.


1973 * required for outdoor receptacles at dwellings.


1975 NEC * required for receptacles in dwelling bathrooms, and for fountains.


1978 NEC * required for receptacles in dwelling garages; for bathroom and outdoor receptacles in mobile homes and recreational vehicles; for receptacles in recreational vehicle parks, marinas, and boat yards; and for receptacles in health care facilities.


1981 NEC * tub motors and portable signs were included.


1984 NEC * covered replacement receptacles, and also added hotel bathrooms.


1987 NEC * added receptacles in commercial garages, dwelling basements, and boat houses, spray washers, and receptacles serving kitchen counters near sinks.


1990 NEC * added photovoltaic roof arrays, receptacles serving kitchen islands, receptacles in crawlspaces, and receptacles near sinks in mobile homes and recreational vehicles.


1993 NEC * added receptacles in non-dwelling bathrooms, on rooftops, in elevator pits, and serving wet bar sinks in dwellings.


1996 NEC * added receptacles in trailers, receptacles serving escalators, electric vehicle chargers, receptacles in sheds, balcony receptacles, and receptacles serving previously exempt kitchen counters.

1975 NEC section 210-7, was the first year that all 15 and 20 amp receptacles in residential occupancies, were required to be the grounding type.
 
I believe GFCI was required in Bathrooms in 1975 but not until 1987 for kitchen counters within 6' of the sink. I think in 1996 it was required for all kitchen counter receptacles
 
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