Well.....that 500 MCM wire that I isolated a few weeks earlier because of a path to ground.....It was practically blown in half!!!!! Mabey 9 strands holding it together. Looks like it was resting on a sharp edge when originally installed, and over 2 years of the presses vibrating the whole building, that corner worked it's way through the insulation. I filed those sharp edges away to prevent this from happening again!
