New Circuit Load - 208/3 Phase with single phase loads

[Jerrodlk]

It’s a conduit issue. We can bend 1” EMT in the lift.
It looks like I can put 3-#3’s + #6 or #8 ground in a 1”. Runs are less than 50’ from the bus to the welder.
Trying to make the job buildable. Anything over 1” conduit gets our crew in a whole different ballpark.

 

[winnie]

I'd suggest getting the complete specs for the welders, specifically the rated duty cycle, and then reviewing article 630.

I _think_ that you are more than fine with using #3's, and might be acceptable with smaller.

-Jon