So I'm having some problems planning the last step of my electric run to my detached garage subpanel. I'm using 2 inch pvc buried with individual 1 gauge aluminum conductors (and a 2 gauge ground).
The garage was just built, so open walls and such. I'd kinda like to mount the subpanel between the studs and have all wiring be behind the wall. My understanding though is that since I'm using individual conductors, they have to be in an approved raceway, like PVC. 90 degree pvc bends are very large. Each one is about a foot. I'm not sure what my options are. My state uses 2014 NEC.
I was thinking:
- Two LB conduit body boxes, one on each side of wall to make kind of a U? 2" ones are pretty massive so I may need to downsize to 1.5".
- Two 45 degree angles may work, but the hole would be difficult for me to drill at an angle, or kinda large (i.e. out of the ground, 45 into structure, 45 on other side to straighten it out into subpanel).
- I've thought about switching to a SER cable near the end, but I'm not sure how to properly join large gauge aluminum connectors. Would I be able to switch it in a conduit body piece above ground outside the structure?