05:33PM | 08/12/05
Member Since: 08/10/05
2 lifetime posts
I'm planning the install a new "panel"(i'm a mechanic and i'd usually call it a breaker box) in my separated shed/garage. the reason for installing the panel is i'm planning on installing a compressor (240v), a few outlets and lights(typical automotive stuff). the main service panel is about 60 feet away from where the new subpanel will be. 18 feet of that distance would have to be hung overhead (concrete driveway will not allow for any trenching). 1st question: what size wire will i need , i was thinking #8 or #6. 2nd question: what kind of wire or conduit do i need in between the buildings? 3rd question: can anyone point out a good step by step site or give a good description on the actual overhead wiring???

thank you


Tom O

06:22AM | 08/13/05
Member Since: 09/17/02
477 lifetime posts

You'll need to provide more information in order to get an accurate answer.

What is the compressor load? You can try giving us the horsepower, but I tend not to trust that number for some compressors since they are grossly inflated, so if you already own this item, look at the data plate & post how many amps it draws.

How many light fixtures & what does each one draw? How many receptacles?

I don't know of anyplace that would show step by step instructions for the overhead part . If you are crossing a residential driveway, you will need to provide a minimum of 12' above grade. If the driveway in question is not classified as residential, you'll need 18 feet of clearance.

Send me your e-mail address & I'll send you a FAQ that covers installation of sub-panels in detached structures. It is directed at underground installations, but will cover most things you need to know except the overhead span.


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