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Electrical Code - USA Commercial or Residential 1999 / 2002 / 2005 versions - for UNITED STATES

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  #1   IP:
Old April 13th, 2005, 01:25 PM
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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.

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  #2   IP:
Old April 13th, 2005, 02:18 PM
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mdshunk mdshunk is offline
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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"
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  #3   IP:
Old April 13th, 2005, 09:07 PM
6pack 6pack is offline
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Join Date: Oct 2002
Posts: 1,781

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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