Hello, I’m building a wood shop. I’m planning on installing 240 and 120 outlets. I plan to connect to my supply panel using a 90 amp breaker. They’re run to the shop is 140 feet. I will use 2” underground conduit. I’m just not sure what size and what rated copper conductors to use. I used to work as a forensic electrical fire inspector. But that was many years ago. I did just complete the 400 amp service with all the bells and whistles in my own new construction home and it passed final inspection on the first pass. Thanks for your accurate help. Jim in Franklin, TN