Originally Posted by watersparkfalls
Thanks again,
decided to use 1/0 URD in the trench, since it is the longest part of the 260 foot run (155 to be exact)its going to land in a 200 amp main breaker (sub panel) I wont have to fight the over sized wire into a 2 pole breaker. I needed a Jbox anyway to switch from SER #2 to the URD, so I figured split bolts and tape save the day. I will reduce my volt drop to a total of 6.55 volts by only using 105 feet of SER #2 from the main panel to JBOX which will be less than 3%.



H20


I am confused, or maybe I missed a post...but you are going to run 1/0 to feed a 200a MB panel...and on top of that change wire sizes in the run???