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

    Oct 19, 2010, 07:40 PM
    Electric service to out building
    Garage/outbuilding is 100 ft from house service panel is 4 gage aluminium wire overkill for a garage door opener and 6 lights and 6 recepticals?
    tkrussell's Avatar
    tkrussell Posts: 9,659, Reputation: 725
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    #2

    Oct 20, 2010, 02:53 AM
    A bit, but given the choices of available wire sizes, I think you will be fine.
    ma0641's Avatar
    ma0641 Posts: 15,675, Reputation: 1012
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    #3

    Oct 20, 2010, 02:57 PM
    #4 is already in a subpanel? what is the panel rating or are you just planning to run the feed to the garage. If not, how are you going to reduce the size of the #4 wire to a workable #-12/14AWG. Welders? 240V compressors? If you are only using 15 and 20 amp outlets, #4 is plenty big and may be overkill but it is always better to be too big than too small. #4 aluminum is probably cheaper than 6 or 8 copper.
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