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Thread: Shared Grounding Electrode System with separate structure

  1. #1
    Join Date
    Feb 2007
    Location
    Alexandria, VA
    Posts
    397

    Shared Grounding Electrode System with separate structure

    I am always looking for a way to avoid driving ground rods!

    I have a separate structure (workshop with no water) about 20 feet from the house meter/panel.

    Can I run a #6 from the panel in the workshop back to the house GES thus avoiding driving two more rods?

  2. #2
    Join Date
    Dec 2010
    Location
    Tennessee NEC:2008
    Posts
    4,564
    Short answer, No
    If you aim at nothing, you will hit it every time!

  3. #3
    Join Date
    Sep 2005
    Location
    Greenville SC
    Posts
    716
    what if it is slab on grade with steel which might qualify as a ufer ... perhaps easy if yet to be built?

  4. #4
    Join Date
    Aug 2004
    Location
    Northern illinois
    Posts
    16,534
    Quote Originally Posted by GeorgeB View Post
    what if it is slab on grade with steel which might qualify as a ufer ... perhaps easy if yet to be built?
    unless the slab has a foundation there is no CEE and thus not a valid GE according to the NEC.

    pound a few ground bars and be done with.
    Bob

  5. #5
    Join Date
    Jul 2003
    Location
    New Jersey
    Posts
    24,956
    Quote Originally Posted by GeorgeB View Post
    what if it is slab on grade with steel which might qualify as a ufer ... perhaps easy if yet to be built?
    If you can meet the requirements for a CEE in the footings then you won't need ground rods.
    Rob

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    All responses based on the 2014 NEC unless otherwise noted

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