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    atel29's Avatar
    atel29 Posts: 1, Reputation: 1
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    #1

    Dec 14, 2009, 04:43 PM
    Conduit sizing for wire
    I would like to pre run underground conduit for a future above ground SPA. Load is 50-60 amps and location is about 100 feet from the main panel. Conduit would eventually be used to feed a sub panel at the spa location.

    What size wire would be suggested and then what size PVC conduit could be used to pre-plumb this run?
    Missouri Bound's Avatar
    Missouri Bound Posts: 1,532, Reputation: 94
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    #2

    Dec 14, 2009, 06:18 PM
    Is this a 120v or 240v installation, or does it require both?
    As far as wire size, it'll be either #6 or #8, depending on what the spa actuallyrequires. 1" will make it easy for either, assuming you are pulling 4 wires. The tub MFG. will tell you what size circuit to provide. (50 amps seems a bit high to me)
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