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John Grabowski John Grabowski is offline
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Default Outdoor Wiring Question


"DerbyDad03" wrote in message
ups.com...
I have some questions about installing an exterior outlet.

I have a circuit that has 2 exterior lights and an exterior GFCI
receptacle on it. I want to tap into this circuit and add another
GFCI. I plan to tap into the circuit along a run of romex inside my
basement, go out through the house rim joist & deck ledger and then to
the outlet. I plan to run Schedule 40 PVC straight out along one of
the deck joists to the far end of the deck.


If the run is going to be hidden, you could make it easy on yourself and
just use UF cable stapled to the joist of the deck. You would need a
compression type connector to enter the outdoor outlet box, but only a romex
connector in the basement. The UF cable would need a smaller hole than the
PVC through the house.



Here are my questions:

1 - Is it OK to attach the GFCI receptacle, in an weather proof box,
to one of the joists that support my deck? The underside of the deck
is about 6 feet off the ground and I want to hide the outlet behind
the front rim joist of the deck.



Yes, it is okay to do that.


2 - Assuming it OK to mount the box under the deck, would it be better
to mount the box such that the receptacle faces down towards the
ground or out towards the next joist?



Whichever suits your needs, however if it faces outward you will need a "In
use bubble cover". If it faces down I think a standard weatherproof GFI
cover will suffice.


3 - The junction box inside the house will be just inside the rim
joist and I should be able to connect the PVC directly to the junction
box. Should I run individual conductors from the junction box, through
the PVC, to the GFCI or is there a special type of Romex for this
application?



It is easier to pull individual conductors into the conduit. If you want to
pull Romex I would use 3/4" PVC conduit.