It is thhn 350kcmil wires, run in 2 sets of 4 (parallel) Two conduits come out of a disconnect and end a foot above the drop ceiling. The wire than is elevated 2-4ft above the ceiling tiles, and supported by rope (tied to the bar joist a couple ft higher) for about a 20ft span where there is than a cabletray, which runs down to a control center.
