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    Wired1's Avatar
    Wired1 Posts: 2, Reputation: 1
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    #1

    Nov 8, 2011, 09:26 PM
    Looking Wire a generator 4 #2's and 4 #18's what size PVC pipe is required ?
    Looking Wire a generator 4 #2's and 4 #18's what size PVC pipe is required ?
    tkrussell's Avatar
    tkrussell Posts: 9,659, Reputation: 725
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    #2

    Nov 9, 2011, 06:13 AM
    What are the #18 wires for?
    Wired1's Avatar
    Wired1 Posts: 2, Reputation: 1
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    #3

    Nov 9, 2011, 06:27 AM
    Two communication and two for battery charger
    tkrussell's Avatar
    tkrussell Posts: 9,659, Reputation: 725
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    #4

    Nov 9, 2011, 12:05 PM
    #18 is not allowed to be used as a building wire, the charging circuit is 120 volts and will need to be a min of #14.

    The communcation cannot be in the same conduit as the power.
    stanfortyman's Avatar
    stanfortyman Posts: 5,598, Reputation: 279
    Electrical & Lighting Expert
    		  
    #5

    Nov 9, 2011, 02:20 PM
    TK, many generators, such as Generac, do allow the control wiring in the same conduit provided it is a limited length of run.
    The control wiring is typically a 240v reference signal that tells the genny that the utility is on, and the other is the load side of a battery charge circuit coming from the transfer switch.

    I will say though, #18ga seems small to me. I would not use smaller than #14.
    tkrussell's Avatar
    tkrussell Posts: 9,659, Reputation: 725
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    #6

    Nov 10, 2011, 03:29 AM
    Control is one thing, communication is another. All I can go by is the information provided.

    Perhaps Wired1 can provide more details of what is being done.
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