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Old 07-06-2014, 10:55 AM   #16
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Outdoor electric project - rough in help please


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Why not go one step further and put the 2 GFCI receptacles in a double box on the outside of the house? That way he would gain 2 additional outside receptacles and could use the same box to make this splice between NM and TWHN for the underground run.
But the nm isn't rated for outdoor, and if you stripped the nm to make the splice you wouldn't be able to read on the conductor what it is.


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Old 07-06-2014, 11:03 AM   #17
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Outdoor electric project - rough in help please


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Actually he can run it as a mutiwire if he uses the 2 pole GFCI breaker.
I'm actually not sure of that.

That would be a 240v 3 wire w ground circuit.

A 12" depth wouldn't work.
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Old 07-06-2014, 11:08 AM   #18
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Outdoor electric project - rough in help please


What about UF cable from the panel to the first GFCI outlet/outdoor box and then transition to THWN? Otherwise, it sounds like I still need to make a junction inside of the house with the PVC and NM hitting the same box and then going out through the rim joist in PVC outside to the GFCI outlet/box along the house.
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Old 07-06-2014, 11:10 AM   #19
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Outdoor electric project - rough in help please


Updated my original drawing based on having the GFCI outlets outside the house to serve as transition, though that seems to be in question now due to NM not being allowed outside.

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Old 07-06-2014, 01:27 PM   #20
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though that seems to be in question now due to NM not being allowed outside.
I was playing.
Please. Put it in. It's done all the time. (Okay. Waiting for the backlash).
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Old 07-08-2014, 07:50 AM   #21
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Outdoor electric project - rough in help please


Morning everyone -

What is the best way to transition from indoor to outdoor? If I can use NM into the back of a weatherproof box (attached to the house), then I can just transition from NM to THWN in the box outside and set my GFCI outlets there.

If I cannot connect NM to the back to the outdoor box it sounds like I may have to go NM inside to a J-box, then PVC from the box to the outdoor box+GFCI outlets, then THWN from there to the final outlets.
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Old 07-08-2014, 08:19 AM   #22
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Outdoor electric project - rough in help please


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Morning everyone -

What is the best way to transition from indoor to outdoor? If I can use NM into the back of a weatherproof box (attached to the house), then I can just transition from NM to THWN in the box outside and set my GFCI outlets there.

If I cannot connect NM to the back to the outdoor box it sounds like I may have to go NM inside to a J-box, then PVC from the box to the outdoor box+GFCI outlets, then THWN from there to the final outlets.
That is the way I would do it and not miss a beat.
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Old 07-08-2014, 08:21 AM   #23
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Outdoor electric project - rough in help please


Got it - thank you!
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Old 07-08-2014, 03:46 PM   #24
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Outdoor electric project - rough in help please


NM into the back of a WP box is done all the time. I have never heard of an inspector question it. Millions of AC disconnects are wire that way.
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Old 07-18-2014, 01:18 PM   #25
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Outdoor electric project - rough in help please


I got all of my SCH40 PVC conduit run and glued together, now I am going to pull through my wires.

I just want to confirm - am I allowed to have 2 separate circuits run into a double gang 4x4 box? From here each circuit will connect to a GFCI outlet and then from the load side, I am going to run 12G THWN out to the post in the yard where each circuit will terminate in a single gang outlet.

Are you allowed to have 2 separate circuits power 2 separate outlets in the same box? Or should I just use this 4x4 box as a junction box and skip the outlets? I did like the outlet idea.



Thanks!
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Old 07-18-2014, 02:18 PM   #26
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Outdoor electric project - rough in help please


You can share the box with 2 circuits.
Make sure you do not mix up the neutrals, or the gfci's will trip.
Tie all the ground together.
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Old 07-18-2014, 02:25 PM   #27
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That was my plan. Thanks for confirming. I will still label it well. I labeled the wires befoe I fed them through the conduit.

Much appreciated.
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Old 07-19-2014, 03:32 PM   #28
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Outdoor electric project - rough in help please


connector in the box. shabby.

check before you get more involved, if you're putting devices in that box they may not fully go in (because of the connector).
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Old 07-19-2014, 03:34 PM   #29
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Outdoor electric project - rough in help please


Also, it looks like poly string in conduit.

Careful on the pull as it cuts into the pvc and may dig in and notch your below grade 90.
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Old 07-20-2014, 06:32 PM   #30
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Outdoor electric project - rough in help please


Be careful where you locate the convenience receptacle. If memory serves, it has to be within 20' of, but not closer than 10' to the pool.

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