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I have an existing 1 1/2 PVC pipe run to a barn, the homeowner wants a panel at the barn. Whats the largest size feeders that can be installed in the PVC? 120/240v single phase, 425ft long, 60 or 100amp is desired. HELP
 

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It was answered in the other thread but, here it is again.

Using 56 amps of load, no more than 3% drop you would need 3/0 AL or #1 copper


Using 100 amps of load, no more than 3% drop you would need 350 AL or 4/0 copper.
 
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