I have 2 200 amp panles in the basement of my house. Oversized on purpose some 18 years ago.
I want to run about 100 to 125 feet of electrical wire to my 2 car garage not attached to the house. In it I have a 100 amp panel. I have no intentions of welding (don't know how) high priced wood working equipment (too cheap) etc. Basically just lites and outlets. I will never have HVAC in it if I use heat it will be either oil or propane.
The Home Desperate clerk suggested I use BIG aluminum wires and put it under ground (#2) I think. I am scared of aluminum wiring and think cooper is best for me. I also do not trust the Home Desperate (Depot) since the electrical genius may work in the hardware section and may not have a clue.
Any suggestions and these are just suggestions on the size of wire I would need to put in the conduit to the building? I was always told it is better to over size the wire just in case someone else may want to use the building as a shop.
I am also planning on not running a ground wire to the main power and drive in a ground rod at the detatched shop. (Three wires hot hot and neutral. Elec. box in detatched garage has the ground isolated from the neutral as well.