NOW MY QUESTION:
I have a barn that needs power and requires a wire run of about 75-80 feet (actual run length from box to box, not just the distance from house to barn). What I would like to do is run direct bury, #2 aluminum (4 wire) from a 100 amp breaker in the house sub-panel, underground to another 100 amp sub-panel in the barn. The electrician I hired 2 years ago said that doing so would not be a problem as long as the 2nd sub panel in the barn was properly grounded. I would like other opinions or advice on this please.
Why 100 amp instead of 60 amp in the barn you ask? Why not, besides I already have a Square D 100 amp panel I bought that was much cheaper than 60 amp panels I looked at, not to mention the expandability 100 amps offers. In the barn I plan to run lights, 20 amp power outlets, an air compressor (220), small arch welder (220), gas furnace, and typical power tools such as a table saw, drill press, etc...
Of course, if my "plans" aren't safe, than I would certainly change whatever was needed to be considered safe. That's why I'm asking for feedback from this group. In hind-sight, I really wish I would have bought a new 200 amp panel when I remodeled the house. Ah...if only I knew everything....lol
Thank you in advance, it's appreciated!