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    seanep's Avatar
    seanep Posts: 2, Reputation: 1
    New Member
    		  
    #1

    Nov 29, 2010, 09:09 AM
    Grounding
    I have an underground (10-2) wire and was wondering if it is acceptable to run that to a sub-panel (in a shed) supplied by a 30amp 2-pole braker with the black and white hot and the ground as neutral, then drive a grounding rod at the sub-panel for ground/neutral bonding
    donf's Avatar
    donf Posts: 5,679, Reputation: 582
    Printers & Electronics Expert
    		  
    #2

    Nov 29, 2010, 09:15 AM

    No!

    A sub-panel requires a four wire feeder, per NEC.

    You will also have to keep ground and neutral isolated from each other. The bonding jumper cannot be installed in the sub-panel.

    Also, since the building is a separate structure, you must set at least on ground rod and connect the sub-panel to this rod via a grounding electrode conductor.
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