Electricity to a shed

shauninusaFebruary 16, 2012

I have a couple of quick questions. I live in MD and i have a shed that is connected to my garage via a deck which is 100 feet long run. I have a sub panel in my garage and i want to run 2x20amp circuits in my shed. The circuits are for lighting and small power tools and exist today but run off a generator when i need them. I want to hardwire the circuits to the garage subpanel so my plan was to run 2x20amp residential circuits to the shed one for lights (15amp would do for lights) and one for the outlets.

I was told by an electrician that to do this I can run conduit under the deck and don't need to bury it as the two buildings are connected by the deck. So first question is that true? My understanding was that PVC conduit needs to be buried 18" and metal conduit 8".

I could also install a subpanel in the shed but i feel this would be complete overkill as I would always use the generator if i needed additional power above 20amps so as to not trip the garage subpanel. Second question does this sound OK and within code or is there a better way to do this? I have 200' UV 10/3 cable already to do the install and 60' of 1" PVC conduit that was given to me for this job by a friend. before I buy the extra conduit and bits to do this i wanted to run it by the experts here. Sorry if this is a newbie question I am an electrician trained in England and there are huge code differences in the US.

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Cable in conduit is only allowed under some specific conditions, and it is a real PITA to pull for any length or through bends since cables often use solid conductors.

What other letters are on the cable?
UV is not a general cable type, but is added to some to indicate the jacket is stable against UV light and can be left exposed.

For outside use type UF cable could be used under the deck, and probably would not require any conduit for physical protection.

    Bookmark   February 16, 2012 at 10:45AM
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OK this is what I can read from the cable.
"F194090 (UL) 10/3 Type UF-B with Ground 600 volts Sunlight Resistant Lead free".
I have between 1.5 - 3 foot of clearance under the deck so could easily attach the cable via cable clips under the whole of the deck if that is allowed or a better solution than running conduit. If not i could do the same with conduit under the deck. if the conduit needs to be buried then that's a lot of work but doable by going out and in front of the deck. What would work best?

    Bookmark   February 16, 2012 at 11:15AM
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I'd just staple the UF to the underside of the deck. Running boards may also be required.

    Bookmark   February 16, 2012 at 11:09PM
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