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I'm supplying 200amp service to a cabin. There is a service disconnect at the meter. Can i use 3 wire 4/0 al to the main panel and put a grounding rod at the main panel and not bond the neutral and ground bus or do i have to use 4 wire from the disconnect to the main panel supplying the ground wire through that?

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  • Why are you wanting to use 3 wire cable for this? Feb 21 '21 at 1:34
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Past the service disconnect you will need 4 wire and you will need ground rods at the cabin.

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