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    okey2k5's Avatar
    okey2k5 Posts: 1, Reputation: 1
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    #1

    Oct 13, 2007, 10:47 AM
    Cable size for loads
    What Is The Cable Size A Load Of 150ampere.
    Stratmando's Avatar
    Stratmando Posts: 11,188, Reputation: 508
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    #2

    Oct 13, 2007, 12:17 PM
    Cable size A? 1/0 ? Not sure what you mean cable size A. National Electrical Codebook
    Article 310-16 will give Conductor Ampacities for Conductors.
    tkrussell's Avatar
    tkrussell Posts: 9,659, Reputation: 725
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    #3

    Oct 14, 2007, 04:56 AM
    Your question is too vague, as there are several variables we do not know.

    Is this residential service or feeder? Then 150 amp feeder needs to be a minimum of #1 copper or #2/0 aluminum.

    Is the load actually 150 amps? The wire size needs to be increased to carry 125% of 150 amps.

    What exactly do you have so you can get accurate advice?
    Stratmando's Avatar
    Stratmando Posts: 11,188, Reputation: 508
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    #4

    Oct 14, 2007, 05:44 AM
    Question was vague, as probably my answer was, should have mentioned Aluminum, and even allowance for Voltage Drop for long runs. Need More Info.
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