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    kich1031's Avatar
    kich1031 Posts: 26, Reputation: 3
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    #1

    Nov 4, 2008, 03:20 PM
    Wire size.
    I have to install a 30 am sub panel in a garage. The distance is 200' and it will be in a trench. Could I get away with running 8/3 UF for this or will the voltage drop be too great, meaning I would have to use 6/3 UF. All tha will be in the garage is 5 garage door openers, 4 lights and a dozen outlets. Im trying to keep the wire cost down for the homeowner.
    ZoeMarie's Avatar
    ZoeMarie Posts: 2,049, Reputation: 468
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    #2

    Nov 4, 2008, 03:27 PM

    200' is pretty far. I'm not sure how accurate this is, but when I worked in an electrical department at a local home improvement center our wire vendor told us that you should use a heavier gauge for every 75' which would put you at 6/3. Wait for someone else to tell you for sure though. I don't want to misguide you.
    kich1031's Avatar
    kich1031 Posts: 26, Reputation: 3
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    #3

    Nov 4, 2008, 03:37 PM

    Im pretty sure I have to use 6/3, don't think there is anyway around it.
    Washington1's Avatar
    Washington1 Posts: 798, Reputation: 36
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    #4

    Nov 4, 2008, 04:58 PM

    #6CU sounds good!
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