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Thread: OT- Help me understand GFIC in a garage

  1. #1
    Join Date
    Jun 2014
    Location
    Louisville KY
    Posts
    1,281

    Default OT- Help me understand GFIC in a garage

    So can someone help me understand why GFIC is required in a garage. I always thought GFIC was only used around water being I always saw them used in circuits in the bathroom / kitchen. What is the deal with requiring them in a garage ?

  2. #2
    Join Date
    Mar 2017
    Location
    Grantham, New Hampshire
    Posts
    102

    Default

    A garage is considered "outdoors" by code and therefore requires GFIC. The assumption is that you could leave the door open and plug in a long extension cord and go to a location similar to the kitchen or bathroom as far as electrical hazard goes.
    CPeter

  3. #3
    Join Date
    Apr 2011
    Location
    South Louisiana
    Posts
    498

    Default NEC

    Water on the floor. Wet cars. Leaking water heaters. Extensions cord dragged out side and so on.

    2008 NEC
    210.8 Ground-Fault Circuit-Interrupter Protection for
    Personnel. Ground-fault circuit-interruption for personnel
    shall be provided as required in 210.8(A) through (C). The
    ground-fault circuit-interrupter shall be installed in a
    readily accessible location.
    Informational Note: See 215.9 for ground-fault circuitinterrupter
    protection for personnel on feeders.
    (A) Dwelling Units. All 125-volt, single-phase, 15- and 20-
    ampere receptacles installed in the locations specified in
    210.8(A)(1) through ( shall have ground-fault circuit interrupter
    protection for personnel.
    (1) Bathrooms
    (2) Garages, and also 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
    (3) Outdoors
    Exception to (3): Receptacles that are not readily accessible
    and are supplied by a branch circuit dedicated to
    electric snow-melting, deicing, or pipeline and vessel heating
    equipment shall be permitted to be installed in accordance
    with 426.28 or 427.22, as applicable.
    (4) Crawl spaces at or below grade level
    (5) Unfinished basements for purposes of this section,
    unfinished basements are defined as portions or areas of
    the basement not intended as habitable rooms and limited
    to storage areas, work areas, and the like

  4. #4
    Join Date
    Feb 2016
    Location
    Edmonton, Alberta, Canada
    Posts
    807

    Default

    Yeah, the floor in my garage is wet regularly for months at a time, generally from snow melting off my truck. I knock the big stuff off, from the mudflaps, but there's still enough to make a big wet spot.

  5. #5
    Join Date
    Apr 2010
    Location
    Canada
    Posts
    2,496

    Default

    Outside or rough environments require a GFI, even when a power tool etc is double insulated, there could be a condition where water etc. could come in contact with the tool or equipment causing a danger to the operator.
    Max.

  6. #6
    Join Date
    Jun 2014
    Location
    Louisville KY
    Posts
    1,281

    Default

    Well crap.... I created several circuits to make it a little easier for working on equipment etc and didnt think I needed GFI. Is there such a thing as a main GFI breaker I could just use to cover everything?

  7. #7
    Join Date
    Aug 2015
    Location
    Regina,Sask
    Posts
    64

    Default

    Yes there is a breaker. Here is a link
    http://www.homedepot.com/p/Square-D-...FICP/100002959
    Glenn Bird

  8. #8
    Join Date
    Jun 2014
    Location
    Louisville KY
    Posts
    1,281

    Default

    Quote Originally Posted by H380 View Post
    Water on the floor. Wet cars. Leaking water heaters. Extensions cord dragged out side and so on.

    2008 NEC
    210.8 Ground-Fault Circuit-Interrupter Protection for
    Personnel. Ground-fault circuit-interruption for personnel
    shall be provided as required in 210.8(A) through (C). The
    ground-fault circuit-interrupter shall be installed in a
    readily accessible location.
    Informational Note: See 215.9 for ground-fault circuitinterrupter
    protection for personnel on feeders.
    (A) Dwelling Units. All 125-volt, single-phase, 15- and 20-
    ampere receptacles installed in the locations specified in
    210.8(A)(1) through ( shall have ground-fault circuit interrupter
    protection for personnel.
    (1) Bathrooms
    (2) Garages, and also 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
    (3) Outdoors
    Exception to (3): Receptacles that are not readily accessible
    and are supplied by a branch circuit dedicated to
    electric snow-melting, deicing, or pipeline and vessel heating
    equipment shall be permitted to be installed in accordance
    with 426.28 or 427.22, as applicable.
    (4) Crawl spaces — at or below grade level
    (5) Unfinished basements — for purposes of this section,
    unfinished basements are defined as portions or areas of
    the basement not intended as habitable rooms and limited
    to storage areas, work areas, and the like
    So does this mean every circuit in a garage needs to have GFCI?? How are people doing this for high amperage circuits such as 220 compressor or welding stations? When I bought my house the garage came wired with a 15A circuit for lights, a 20A circuit with GFCI for outlets, and a 20A 220V for a welder. The only GFCI was on the receptacle circuit. It passed the inspection when I bought the house so I would have thought it would have been flagged if incorrect.

    What am I not understanding here.

  9. #9
    Join Date
    Apr 2011
    Location
    South Louisiana
    Posts
    498

    Default

    Quote Originally Posted by Axkiker View Post
    So does this mean every circuit in a garage needs to have GFCI?? How are people doing this for high amperage circuits such as 220 compressor or welding stations? When I bought my house the garage came wired with a 15A circuit for lights, a 20A circuit with GFCI for outlets, and a 20A 220V for a welder. The only GFCI was on the receptacle circuit. It passed the inspection when I bought the house so I would have thought it would have been flagged if incorrect.

    What am I not understanding here.
    2008 NEC
    210.8 Ground-Fault Circuit-Interrupter Protection for
    Personnel. Ground-fault circuit-interruption for personnel
    shall be provided as required in 210.8(A) through (C). The
    ground-fault circuit-interrupter shall be installed in a
    readily accessible location.
    Informational Note: See 215.9 for ground-fault circuitinterrupter
    protection for personnel on feeders.
    (A) Dwelling Units. All 125-volt, single-phase, 15- and 20-
    ampere receptacles
    installed in the locations specified in
    210.8(A)(1) through ( shall have ground-fault circuit interrupter
    protection for personnel.
    (1) Bathrooms
    (2) Garages, and also 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
    (3) Outdoors
    Exception to (3): Receptacles that are not readily accessible
    and are supplied by a branch circuit dedicated to
    electric snow-melting, deicing, or pipeline and vessel heating
    equipment shall be permitted to be installed in accordance
    with 426.28 or 427.22, as applicable.
    (4) Crawl spaces at or below grade level
    (5) Unfinished basements for purposes of this section,
    unfinished basements are defined as portions or areas of
    the basement not intended as habitable rooms and limited
    to storage areas, work areas, and the like

  10. #10
    Join Date
    Jun 2014
    Location
    Louisville KY
    Posts
    1,281

    Default

    Quote Originally Posted by H380 View Post
    2008 NEC
    210.8 Ground-Fault Circuit-Interrupter Protection for
    Personnel. Ground-fault circuit-interruption for personnel
    shall be provided as required in 210.8(A) through (C). The
    ground-fault circuit-interrupter shall be installed in a
    readily accessible location.
    Informational Note: See 215.9 for ground-fault circuitinterrupter
    protection for personnel on feeders.
    (A) Dwelling Units. All 125-volt, single-phase, 15- and 20-
    ampere receptacles
    installed in the locations specified in
    210.8(A)(1) through ( shall have ground-fault circuit interrupter
    protection for personnel.
    (1) Bathrooms
    (2) Garages, and also 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
    (3) Outdoors
    Exception to (3): Receptacles that are not readily accessible
    and are supplied by a branch circuit dedicated to
    electric snow-melting, deicing, or pipeline and vessel heating
    equipment shall be permitted to be installed in accordance
    with 426.28 or 427.22, as applicable.
    (4) Crawl spaces — at or below grade level
    (5) Unfinished basements — for purposes of this section,
    unfinished basements are defined as portions or areas of
    the basement not intended as habitable rooms and limited
    to storage areas, work areas, and the like

    ahhhhhhh totally overlooked that.

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