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Thread: wire/cable in pvc conduit - underground feed

  1. #1
    Unregistered Guest

    Default wire/cable in pvc conduit - underground feed

    i need to redo the wiring to feed an unattached garage the
    previous owner installed (they used unprotected cable 2"
    under soil surface?!). I will be using PVC conduit but am unsure
    what type of cables/wires area allowed in the conduit.
    can i simply use NM or do i need to go with UF or THWN?

    the garage is about 12' from the house and i will be using 12 ga.
    wire.

    thanks.

  2. #2

    Default

    You can use #12 THWN in 1/2" PVC conduit or you can use one 12-2 UF cable in 3/4" PVC conduit. Whatever you choose to run in the pipe, it must be rated for a wet location. THWN and UF are both wet location rated, as is XHHW and RHW.
    "Nothing is foolproof to a sufficiently talented fool"

  3. #3
    Join Date
    Oct 2002
    Posts
    1,781

    Default

    if gfi protected you can run just the uf cable at 12' deep. No conduit at all. See detached garage wiring

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