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    soonerboy71762's Avatar
    soonerboy71762 Posts: 1, Reputation: 1
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    #1

    Mar 30, 2007, 05:44 PM
    How many amps ?
    I have a 4/0 awg al type use 2 600 v xlpe phasea 2/0 neutral?? How many amps will it carry 165 feet and can I put it underground? :confused:
    tkrussell's Avatar
    tkrussell Posts: 9,659, Reputation: 725
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    #2

    Mar 31, 2007, 04:44 AM
    Any wire or cable marked "USE" is rated for direct burial.

    Maximum recommended voltage drop of a feeder is 3%. Assuming 240 volts supply, the max Vd is 7.2 volts.

    Assuming a full load of 200 amps, at 165 feet, at 240 volts, the Vd will be 6.6 volts, so a full 200 amps is available.

    If any large motors or welders are used, the voltage drop will be greater, so the full ampacity will be reduced.
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