450' electrical line run

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Old 11-29-18, 04:27 PM
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450' electrical line run

I want to supply 50 amps to my motorhome which is 450' from 150 amp service service panel. What size wire do I need to accomplish this?
 
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Old 11-29-18, 04:48 PM
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If you'll want to be running both A/C units you will need considerably larger sized wiring.
Are you looking for direct burial or are you running conduit ?

To stay under a 3% voltage drop you will need at least #1 copper or 2/0 aluminum.
 
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