Wire size for Machine Shed

[tractorguy]

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!

 

[rbulsara]

http://www.edreference.com/Updateedr/

Check out the above site. They have inexpensive program for voltage drop.

Look for max 3% voltage drop.