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Wire size for Machine Shed

Wire size for Machine Shed

Wire size for Machine Shed

(OP)
Folks,

I was wondering if you can help me with selection of the correct wire size for a building I am putting up next to my home.  Currently I have a home with 320a service.  What I want to do is to run a wire from a 100a disconnect on the house to the machine shed which is ~300 feet away.  I wish to supply 240v/100a to the building.  A second option would be to provide 240v/60amp to the building as a minimum.  I was considering using 2awg for the 60amp service and 1/0 for the 100a service...any thoughts?  Is there a nice website out there that provides a table/chart for this? What is the max voltage drop you look for in this type of application?  In the machine shed I will be using a computer.

Thanks!

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