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Mike G., Master Electrician
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I have a 200 amp serv to the house and a 200 amp serv at my

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I have a 200 amp serv to the house and a 200 amp serv at my shop. Want to serve the shop from the house as it is no longer used much. Already have #2 cable underground stubbed out at both boxes. Want to pull the shop meter and run from the house serv with maybe a shutoff in between. The shop Box is approx 160 ft from the house serv.

Submitted: 1 year ago.
Category: Electrical
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Expert:  Mike G. replied 1 year ago.

Hi, I'm Mike and I'll be glad to assist you. Is the total run 160 or 220 feet? How many wires and their sizes?
Mike G.41051.0346190625

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Expert:  Mike G. replied 1 year ago.

Is the wire copper or aluminum?

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Customer: replied 1 year ago.

total run is 160 ft 100ft is already undergrond and stubbed out at the house box It is Alcon B #2 alum with a #4 ground wire

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Expert:  Mike G. replied 1 year ago.

How many wires exactly? A sub feed run requires 4 wires.

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Customer: replied 1 year ago.

3 wire cable--2 #2 & a#4 grnd.

Expert:  Mike G. replied 1 year ago.

I hope it's in pipe. You'll need to run another #4 wire for the ground. The calculation for the the distance and voltage drop is 80 Amps. I assume that you have a ground rod at the shops old service.

Mike G., Master Electrician
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Expert:  Mike G. replied 1 year ago.

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