In part of construction of the new garage/shop I am planning out power. Here are my thoughts:
- I would like to install a outdoor load center near my barn. My need for this is for outdoor outlets for horse buckets, pool pump, outdoor wood boiler and I'd like to move the feed for the barn to the sub panel(there is no panel in the barn). Right now it goes underground into the main panel. I would then like to run power to the garage from this outdoor panel. the outdoor panel would be 130' from the main panel, and the garage is 200' from the sub panel.
- Can I daisy chain 2 sub panels like this? I understand the loads would need to be calculated. If I did a 125 or 150A outdoor sub panel, could I run a 100A sub to the garage? I did my calculations on wire size from the main panel to the outdoor panel and plan to use copper USE #2 direct burial for the 2 hots and neutral and a #6 for the bonding ground. According to my calculations I can run a 150A load up to 131' @ 3 percent voltage drop. I plan on using aluminum 4 wire to the garage but have not done any calculations yet.
My biggest concern is keeping it all to code. I am not a NEC nut that knows the book like a bible. Thanks for any help!