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

    Feb 12, 2012, 09:18 PM
    Running romex in pvc conduit?
    Washington mentioned THHN or UF for outdoor use. Did he then mean UF can be run in conduit?

    I am wanting to put two runs of 12/3 inside conduit running underneath a deck to a hot tub. They are 240V circuits at 20A and 30A. The run is about 50 ft which sounds like 12 ga copper should work.
    I saw a 250' roll of 12/3 w/g UF cable that would better suit the project and budget than buying THHN.

    Can someone please advise?
    tkrussell's Avatar
    tkrussell Posts: 9,659, Reputation: 725
    Uber Member
    		  
    #2

    Feb 13, 2012, 03:38 AM
    Since a spa or hot tub falls under the Code for pools, an insulated equipment ground is required, UF cable is NOT allowed for a spa or hot tub.

    Use PVC conduit with THHN/THWN insulated wire.
    stanfortyman's Avatar
    stanfortyman Posts: 5,598, Reputation: 279
    Electrical & Lighting Expert
    		  
    #3

    Feb 13, 2012, 04:47 AM
    Quote Originally Posted by mikeinelk View Post
    They are 240V circuits at 20A and 30A. The run is about 50 ft which sounds like 12 ga copper should work.
    I saw a 250' roll of 12/3 w/g UF cable that would better suit the project and budget than buying THHN.

    Can someone please advise?
    A) I hope you were not planning on using #12 for a 30A circuit such as this.

    B) Why would you have chosen 12/3 for a straight 240v circuit?

    C) PLEASE hire an electrician to at the very least help you with this. A hot tub is not a place to figure things out as you go. You should know what you are doing right from the start.
    Stratmando's Avatar
    Stratmando Posts: 11,188, Reputation: 508
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    #4

    Feb 13, 2012, 05:49 AM
    Some may pull 2 #6's a #8 for neutral and a #10 for ground to supply a 4 or 6 circuit panel, install any necessary GFI's, at the required distance.
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