The 2 1/2" conduit runs through conditioned office spaces. And back to backing two tranformers was a thought, but no place to put them on either side.
Shortcircuit - The wire size is just under as the motor is 206 FLA, but I totally agree, a big mess up was done on planning the design for that voltage, distance, wire size. And I too am weary of 350, being too low as well. Although the use is intermitant, it is frequent, so LRA constitutes 50% of actual run time. I had given some thought to buss duct for major portions of it, but a little cost prohibitive. More than to replace with larger conduit to accomodate 500MCM w/ ground.
Now Steve, I know of no UL listed product for that purpose. We are also talking about a huge amount of cubic inches of conduit.
