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    canovice's Avatar
    canovice Posts: 3, Reputation: 1
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    #1

    Nov 15, 2009, 10:45 AM
    Connecting to ground rod
    On my sons house, the ground wire runs down from the surface mounted main panel, to the ground rod in a piece of 1/2 inch EMT and exits it with the end of the EMT open. This looks a little strange, is it up to code?
    tkrussell's Avatar
    tkrussell Posts: 9,659, Reputation: 725
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    #2

    Nov 15, 2009, 12:15 PM
    Good question.

    A ground wire does need to be connected to the metal conduit, usually with a two screw connector is allowed. There is an EMT to cable adapter available. Or use an EMT connector, rigid couplng, and a cable connector all threaded together.
    Missouri Bound's Avatar
    Missouri Bound Posts: 1,532, Reputation: 94
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    #3

    Nov 15, 2009, 12:27 PM
    I've seen it before, but in commercial installations. The conduit is merely used to protect the wire. It has no physical connection to the wire, except where it may contact it. It's not a bad idea, and the ground isn't interrupted by anything since the conduit isn't part of the circuit, just a protection.
    canovice's Avatar
    canovice Posts: 3, Reputation: 1
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    #4

    Nov 15, 2009, 10:27 PM
    Thanks for the help guys...
    tkrussell's Avatar
    tkrussell Posts: 9,659, Reputation: 725
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    #5

    Nov 16, 2009, 03:41 AM
    There is no difference in commercial or residential, a metal conduit with a grounding electrode conductor must be bonded to that conductor.
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