What gauge wire to barn?
#1
09-17-19, 07:48 PM
Join Date: Jan 2012
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What gauge wire to barn?
I currently have a 100 amp panel in my barn. It has its own meter separate from the house. I pay $35 a month per meter. I want to eliminate the meter at the barn. The previous owner did not want to trench the 200' from the pole that supplies the house to the barn. I need to know what gauge, type of wire, and depth I should use to run the 200' to the barn. I would prefer not to use conduit. Any help is appreciated. Thanks
#2
09-18-19, 07:45 AM
#3
09-19-19, 06:48 PM
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The barn has an electric heater, hot water heater, washer dryer, and several heated water tanks. I just finished trenching 18" deep trench for a propane line and it was miserable. So now I'm thinking I would much rather use conduit to dig as shallow as possible. Thanks for responding.
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09-20-19, 08:19 AM
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What gauge THWN should I use? I will need to pass under the driveway. It's an asphalt driveway will I need to go deeper under it?
#6
09-21-19, 08:31 AM
To use the full 100 amp the minimum size is 1 gauge aluminum. For 200' you will have measurable voltage drop. To keep under 3% at full load you need 4/0 - most don't do that at compromise somewhere between after looking at your likely loads.
Check for local amendments but normally 18" under "One- and two-family dwelling driveways and outdoor parking areas, and used only for dwelling-related purposes"
Check for local amendments but normally 18" under "One- and two-family dwelling driveways and outdoor parking areas, and used only for dwelling-related purposes"
