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Running some power to a barn ~275 ft from the house. I plan to put in a 100A main panel (with the nuetral and ground bars seperated) As a sub panel so I'll have a quick disconnect without having to run 300 ft to the house.
Current draw in the building will be between 50&60A as it will only be myself in there and I can't possibly think when or how everything would ever be on, i.e saw/compressor/heater/router etc.
I added up the big amperage draws, and the saw/compressor and heaters total 52A. Knowing how the building is wired and such I'll never run all the heaters at once as the building is divided into seperate rooms. My only concern would be compressor kicking on. Lighting will most likely be flourescent or led so I'll have low draw there. Ideally I'd feel better if I had 70A available for the random turn on of the compressor.
Now to my question, I was told 2/2/2/6 would supply close to a 100A, but at that distance it'll be closer to 60A. I'm running conduit in ground and want to be sure that I'm in the ballpark for my wire size. I saw depot has what they label service entrance wire (wrapped in grey sheathing) for a decent price. Is this acceptable to use for that distance of a run? I figured the sheathing would be nice to keep the wires somewhat manageable.
The other option they had was three individual (2/2/2) wires loosely twisted together which I think was direct burial for even cheaper but I'd have to get the ground seperately, and either way I'd still want to run it in conduit for any future use and for the fact I don't feel like digging a 24" deep trench. I also read somewhere that you can do 1 ga for the hots, a smaller ga like 2 for nuetral and then a 4 or 6 for ground. Just like everyone, I'm trying to be cheap as possible, but I don't want to get this all done and be flipping breakers all the time.
I did a quick search, but it seems everyone has way shorter runs than what I'm looking at... Thanks in advance,
Current draw in the building will be between 50&60A as it will only be myself in there and I can't possibly think when or how everything would ever be on, i.e saw/compressor/heater/router etc.
I added up the big amperage draws, and the saw/compressor and heaters total 52A. Knowing how the building is wired and such I'll never run all the heaters at once as the building is divided into seperate rooms. My only concern would be compressor kicking on. Lighting will most likely be flourescent or led so I'll have low draw there. Ideally I'd feel better if I had 70A available for the random turn on of the compressor.
Now to my question, I was told 2/2/2/6 would supply close to a 100A, but at that distance it'll be closer to 60A. I'm running conduit in ground and want to be sure that I'm in the ballpark for my wire size. I saw depot has what they label service entrance wire (wrapped in grey sheathing) for a decent price. Is this acceptable to use for that distance of a run? I figured the sheathing would be nice to keep the wires somewhat manageable.
The other option they had was three individual (2/2/2) wires loosely twisted together which I think was direct burial for even cheaper but I'd have to get the ground seperately, and either way I'd still want to run it in conduit for any future use and for the fact I don't feel like digging a 24" deep trench. I also read somewhere that you can do 1 ga for the hots, a smaller ga like 2 for nuetral and then a 4 or 6 for ground. Just like everyone, I'm trying to be cheap as possible, but I don't want to get this all done and be flipping breakers all the time.
I did a quick search, but it seems everyone has way shorter runs than what I'm looking at... Thanks in advance,
