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Falcon67, sounds like you did alright. I am jealous I haven't even built my garage yet, and when I do I will probably be limited in terms of building space & electrical capacity.

pattenp, You are correct - I did miss that I will edit my original post

Falcon67, they are probably using NEC 310.15 (B)(7) - which is supposed to be restricted to main service conductors only. But if the inspector was OK with it, he has the final say as the Authority Having Jurisdiction. It was not my intention to drag this out - I would recommend the 1/0 AL and...

Falcon 67, I can't disagree with you, the NEC has a lot of rules I have a hard time justifying. I interpret that to mean if the cable is encased or surrounded by insulation, the ampacity will be reduced, because the heat can not dissipate as readily. So only if the cable is buried in the...

I assumed the OP was talking about an outdoor installation as his distance listed was 100' +/-. I understand your point, so I don't see why you would disagree with my original statement, the USE is not allowed to be installed indoors, so it would not be in thermal insulation, therefore the...

I am also referring to the 2011 edition - I interpret this restriction to mean that if the cable or conductors are routed through an interior area that has thermal insulation (ie: fiberglass), then the ampacity of the conductors is limited to those listed in the 60 degree column. Otherwise...

I interpret "installation in thermal insulation" to mean fiberglass or some other type of insulation used to prevent heat loss within the dwelling

NEC 338.10 (4) restricts the wire to the 60 degree rating for interior installations with thermal insulation, and although part of this circuit is inside, the majority of it is exterior. I think this is a code interpretation issue The explanation in the NEC Handbook does refer to 110.14 for...

I would suggest a 100 amp w/aluminum conductors. If you look around you should be able to find a 100 amp valu-pack. Which is a panel packaged with several breakers (usually single pole 20 and 15 amp breakers and a double pole 30 amp). You may find that the 100 amp combination is cheaper than...