Hello all new here I'm a home improvement contractor of 30 years and have a small project I need some assistance with. I have a existing detached garage with a 100amp sub panel fed with 2-2-4-6 MHF from a 200amp main panel less than 15' away. I added a second detached garage roughly 125' away from the first detached. The plan was to add a 90amp panel in the new garage which will feed receptacles, lighting, lift, air comp. tire machine, mini split and a welder outlet.
I was going to run SER through the existing garage which is about 30-35' to a JB then convert to either MHF or XHHW-2 in conduit under ground to the new garage. I planned to run 2-2-2-4 wire and that with the run in conduit looks like it's just under 3% voltage drop. Now I have to add in the drop for the 30' of SER cable which if I use the same size it's like 0.89%. So is this too much loss? Would increasing the SER cable size help that?
I was going to run SER through the existing garage which is about 30-35' to a JB then convert to either MHF or XHHW-2 in conduit under ground to the new garage. I planned to run 2-2-2-4 wire and that with the run in conduit looks like it's just under 3% voltage drop. Now I have to add in the drop for the 30' of SER cable which if I use the same size it's like 0.89%. So is this too much loss? Would increasing the SER cable size help that?
