Hello everyone! First time I visited this site in a couple of months. My question is do any of you install swing-jacks into a hot 480 volt bus? I was told in our plant the policy is you can install up to 200 amp bus plug without shutting off bus. I do it and I always megger out the switch first. Am I being stupid. My boss told me if I felt uncomfortable with installing them hot then we would have the buss shut off. The problem with that is it is a big inconvenience to everyone else in a large factory and during production it is nearly impossible.

I would like to hear your opinions. Thanks.