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Shed Wiring Question
Hello,
I know this subject has probably been beaten into the ground but I have a question about wiring my 10 x 10 shed. All I want is a couple of outlets and two lights, one outside and one inside. The outlets will be for occasional power tool use, nothing heavy duty. I want to run a double 20 Amp circuit from my outside panel using 12-3 w/ground uf (one neutral, two hots, one ground) from a 20 220v GFCI breaker and use a 20 amp dp switch as a disconnect at the shed. I will then split it off into 2 different 20 amp circuits, one for the outlets and one for the lights. I want to know if you think an 80 foot run of wire is too far for 12 gauge wire and are there any grounding issues with this type of disconnect setup?I have thought about the subpanel route but the electricity use in this shed will be minimal, mainly during the landscape season. Any response is greatly appreciated. Thanks, Jaime |
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If the #12 wire has a load of 16 amps, the voltage drop will exceed the recommended 3% a bit. I realize it would cost more, but I would suggest using #10 wire. This will help with motor loads, and allow a bit more usage in the future.
If the load is as minimal as you think then #12 is fine, just remember that later on if any more load is added, you may wish you had #10. Just a thought, it is entirely up to you. Consider if you use a long extension cord from the shed outlet, the voltage drop will show up then even with a minimal load. The grounding and the use of a 2 pole GFI CB sounds fine, just be sure to use the breaker that is rated 120/240 volt, this will have the neutral lug and pigtail. The 2 pole switch/disconnect is not necessary, but OK to have if you desire. |
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