Questions about running electric to garage and barn.

I am about to run electric service to two separate buildings and looking for some advice. I have a 200 amp service in house, could potentially run 100 amp to barn/garage if nesc. Have a 130ft run from house panel to garage, plan on running lights, furnace, large 220v air compressor, and maybe a 120v welder. Then running from garage subpanel to barn subpanel but only planning on running lights in barn. Wondering what size I should run to garage and then out to barn. Also, is the 100 amp panel nesc between garage and barn?

Any help appreciated, thanks.

I'm not a professional electrician.

What I did: Put a 60 amp breaker in my house 200 amp panel, run 100 amp service wire to the shop, about 150 ft away. Put a 100 amp panel in the shop. I run a 4 HP ("6" HP in "modern" measurements) 220v compressor and a 220 amp Miller stick welder in the shop, plus the rest of the shop.

Not a pro but that sounds about right, I'd think it would be best to run the barn subpanel (30 amps should do it?) off the 100 amp garage subpanel. You'll need pretty heavy wire for a 130ft run to keep voltage drop down.

I have 200 in the house. Ran 100 to the garage and then a 30 from the garage to the kids clubhouse. Drove in separate grounding rods at the garage and the clubhouse. Kids have lights, electrical outlets and electric heat in the clubhouse and never tripped a breaker. Not even during Winter sleepovers with the kids cranking the heat and a clubhouse covered with Christmas lights. Its AC current, so distance isn't a big factor on wire size.

I had the same situation. My house has a 200A service. The cost of #6 vs #3 direct bury cable dissuaded me from having a 100A service in my shop. Therefore I have a 6/3 cable running out to the shop feeding a 60A service. I have an old 5hp 60 gallon compressor, hoist, lathe , milling machine, upright drill press, lights, welders, oil furnace and assorted and sundry power tools. Sometimes there's four or five guys working in my shop at the same time and other than tripping the odd individual breaker we've never had an issue. For the stable I just ran a 12/3 on a two pole 15A breaker from the shop. All there is in the stable is a dozen fluorescent lights and a couple of plugs. There was no reason to run a separate service to the stable since a couple of circuits were more than adequate.

Just my two cents worth and keep in mind that I'm a cheap ass. But I'm a practical cheap ass.

In reply to Dr. Hess: I guess I'm missing why you put 100 amp breaker going to garage and then 60 amp panel in garage?

Thanks

I put the 60 amp breaker in the house panel, ran a 100 amp (rated) wire(s) out to the 100 amp box in the shop. They sell 100 amp boxes, so that's what I put in it. I put 60 amps at the house because I figgered that would be plenty. I have not tripped it in 16 years from an overload, so I think I'm good.

1 (actually a licensed electrician cause I don't play with that amperage) ran a new box off of the service from the meter to a new 100a box at my garage. I wanted more, but the cables from the power pole to the meter weren't rated for more. Long discussion short.... Have someone who is qualified look at your service entrance and tell you your options.

I have 200 amps in the house.

And another 200 amps, on a separate meter, in the shop.

Overkill to say the least. My last shop ran just fine on 70 amps.

Our house has 200A. The garage is a separate meter (300' behind the house) and has its own service from the road with a 100A panel. Not cheap, but its nice to have the amperage. I can be running MIG while dad is running the 5hp compressor and a plasma torch.

In reply to Mrwalden:

If builder have much poor grammar can I trust with voltages to me canoe shed?