I need to run conduit underground to a new garage. My problem is I don't understand the proper way to run the 2in PVC conduit outside to the sub panel. The wall sits on a 3ft 8in stem wall. The top of the footing is at grade level. It extends from the wall about 14 inches. The buried conduit will be 21 inches deep. Then it will have to rise to the edge of the footing, then on top of the footing to the stem wall and rise up to the wall.
If I used 90 degree bends,.. that will force me over the 360 degree rule. The cables are 1/0 THHN. so Pulling that through the 90s will be nearly impossible. Can I used LBs in the place of the 90 degree bends at the ground level? If I do, what is the proper way to secure them? Any input will appreciated. Thank you
It was pointed out that I should explain why I will be over the 360 degree code. The other end of the conduit. There are two more bends that have to be. From an outdoor box, on the corner of the house, it heads under ground, then at 21in, it makes a 90 to run to the back yard. There it's another 90 to run 65 feet to meet with what you see in the picture.
I have all of the wiring completed inside the garage, and this is the last piece of the puzzle before I call in for rough-in inspection.