electrical ?

JD2ACWD · Oct 7, 2015

want to run power out to shed from the house 125 feet what size wire do I need? will need 220 to run compresser ,thanks for any help

Ozlander · Oct 7, 2015

1 hp compressor or 100 hp compressor?

old · Oct 7, 2015

You will pretty much need a size that is about the same as you run the house off of. 4/0 or so if not bigger. If your going to shop you figure you will need a whole lot more in the future then you think you will

JD2ACWD · Oct 7, 2015

5 hp compressor

Duane WI · Oct 7, 2015

When I bought my place the shed that I turned into my workshop had a 10 gauge 30 amp 220 feeder. It pulls off a panel from my garage about 75 feet away. I always figured I would upgrade it at some point but so far there has not been a need. I run my 60 gallon upright compressor with a 5hp motor. I can run my welders. I can pretty much do anything I want. The key is only one major tool at a time. Only light the area you are working in. Turn off the compressor if you aren't using compressed air. You will be surprised at how far 40 amps will go if you are the only one working in the shop.

buickanddeere · Oct 7, 2015

60Amp service absolute minimum. Three insulated #4 and a bare #6 copper underground to be legal. #6 insulated would probably do but you are not saving more than a few bucks.
Isolate the neutral bar from ground at the shed panel. Drive at least one 8ft long ground rod to also connect to the shed panel.
Do not put lights on the same circuit as receptacles .

paul · Oct 7, 2015

This entire farm used to be on a 60 amp service.

If dad welded at the same time mom washed clothes, it would blow a fuse.

Think most wire was overhead #8. The electricians scratched their head that the deep well actually worked.......

Was into this century before I got things rewired around here. I ran 60 amp to every building, and most actually have a 200 amp box to branch off of to the next.

Anyhow, I sure would run 60 amp to a building you will run a good compressor and probably other tools in.

Paul

dr sportster · Oct 8, 2015

It depends on what your loads are . Before an installation load calculations are done to meet the needs of the equipment. General shop 60 amp may be fine . Welding shop probably not. What size building and how many light fixtures etc.?

ss55 · Oct 8, 2015

There is enough information missing for your question that you really should hire an electrician to size up and install that run for you. Some guys install wiring that is too small, have problems with lights dimming, low power from motors, and burnt out motors from too much voltage drop, but will still claim it "Works OK". An electrician should also check if the wiring that you are tapping into at the house to verify it is heavy enough to handle the extra load before adding another circuit.

electrical ?

JD2ACWD

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Ozlander

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old

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JD2ACWD

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Duane WI

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buickanddeere

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paul

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dr sportster

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ss55

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