When trying to find pipe size for USE cable, the charts don't show USE that I can see. I know that USE is underground cable, but my supply houses don't supply aluminum wire except in USE. Is there somewhere in the code that specifies what USE is equivalent to, in insulation? I am thinking about the options of using # 1 USE aluminum for a feeder to a 100 amp panel, instead of #3 copper. I'm figuring up a bid on a job. The run will be approximately 100ft. Thanks
