Wire for 50A 220V Service - 110' run
I have on hand about 30' of #2 aluminum wire and about 100' of #6 aluminum wire. The run from the breaker to the outlet will be about 120'. Can I run about 30' or so of #2, then continue with #6 to ...
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FWIW, with a length of 120', 240' there and back, using copper wire at a current of 50A, #6 AWG will have a voltage drop of 9.48v and #4 5.96v, so your 120v would be 110.52v and 114.04v at the RV.
