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National Electrical Code Regulations - Dwelling Unit GFCI's

Ground-Fault Circuit-Interrupter Protection For Dwelling Units

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A photo of a GFCI kitchen outlet in a camper.

A photo of a GFCI kitchen outlet in a camper.

Timothy Thiele

The National Electrical Code has specific requirements for dwelling units. Ground-fault circuit-interrupters are designed to save lives and are to be used in wet and damp locations in and around the home and outbuildings. Article 210.8 states that ground-fault circuit-interrupters shall be used for all 125-volt, single-phase, 15- and 20-amp receptacles installed in the following locations.

  • Bathrooms

  • Garages and Accessory Buildings that have a floor located at or below grade level not intended as habitable rooms and limited to storage areas, work areas, and areas of similar use.

  • Outdoors

    * Exception: Receptacles that are not readily accessible and are supplied by a dedicated branch circuit for electric snow-melting or deicing equipment shall be permitted to be installed in accordance with Article 426.28.

  • Crawl Spaces - Located at or below grade level.

  • Unfinished Basements - Unfinished basements are defined as portions or areas of the basement not intended as habitable rooms and limited to storage areas, work areas, etc...

    * Exception: A receptacle supplying only a permanently installed fire alarm or burglar alarm system. See Articles 760.41(B) and 760.121(B)for specific fire alarm system power supply requirements. This exception for receptacles shall not be considered as meeting the requirements of Article 210.52(G).

  • Kitchens - receptacles in this area that are used to supply power to countertop surface devices.

  • Laundry, Utility, and Wet Bar Sinks - Where receptacles are placed within six feet of the outside edge of the sink.

  • Boathouses

    Ground-fault circuit-interrupters are easy enough to install by following this article on how to install a GFCI.

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