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my new moneypit 01-10-2010 12:49 PM

New Sub Panel in Garage
 
I am adding a new sub panel in the attached garage. The new panel is a 100A mian lug panel, I will be feeding it with a 60A 2 pole breaker from the main panel (200A service). The run from one to the other is 45ft in conduit. The question is what size conductors and ground in copper THHN. and what size conduit.

Thanks in advance for the info. :)

Scuba_Dave 01-10-2010 12:57 PM

I used 1" PVC - bigger then needed but bigger is easier

I went with #6 wire = 2 hots & white neutral
I used green #8 as ground but you could use #10




my new moneypit 01-10-2010 01:01 PM

If I went to 70A would #6 still be OK?

Scuba_Dave 01-10-2010 01:07 PM

If newer equipment/panels #6 is rated for 65a in 75c column
So as long as your calculated load is not over 65a you can install a 70a breaker




Magnettica 01-10-2010 01:52 PM

Quote:

Originally Posted by Scuba_Dave (Post 380148)
If newer equipment/panels #6 is rated for 65a in 75c column
So as long as your calculated load is not over 65a you can install a 70a breaker

Yup. .:thumbsup:

As long as the insulation is THWN.


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