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    dgley's Avatar
    dgley Posts: 4, Reputation: 1
    New Member
    		  
    #1

    Apr 24, 2010, 05:25 AM
    When running underground wire from one disconnect to another 100 feet away do I need
    I am installing 400 amp service with two 200 amp disconnects and then running direct burial alum wire to another 200 amp disconnect 100 feet away due I need to run a ground wire in that underground wire bundle to connect to the two disconnects as long as I separate 200 amp disconnect ground and the nuetral at the last diconnect
    stanfortyman's Avatar
    stanfortyman Posts: 5,598, Reputation: 279
    Electrical & Lighting Expert
    		  
    #2

    Apr 24, 2010, 05:35 AM

    You DO need an equipment grounding conductor between the service equipment (main disconnect) and any/all panels.

    There used to be certain conditions which allowed a 3-wire feeder omitting the equipment ground, but this has been removed from the code.
    dgley's Avatar
    dgley Posts: 4, Reputation: 1
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    #3

    Apr 25, 2010, 01:33 AM

    Thanks for your help
    tkrussell's Avatar
    tkrussell Posts: 9,659, Reputation: 725
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    #4

    Apr 25, 2010, 04:04 AM
    Isn't that what I stated here:

    https://www.askmehelpdesk.com/electr...ct-466657.html
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