I was working on a step ladder swapping out a 3 Phase 480 volt magnetic contactor. The parts that I were given were used and of questionable quality. So after swapping out the THIRD BROKEN CONTACTOR, I was becoming complacent with the disconnecting means. Combine this with the lingering affects of the flu and you have a dangerous situation.
Needless to say (you guessed it) I left the power ON! When I pulled the phase conductors from their terminals (all 3 at once) with my left hand (my right shoulder was grounded against the ductwork) and I lit up like a Christmas tree!
I didn't fall off the ladder, but I actually smelled burned flesh after the blast! Not sure, but I THINK it was out of my mouth!

My hand didn't smell like it was burned, but the odor persisted for 10 seconds or so!
I feel fine now, but was a bit unsure of myself right after it happened!
Now, we are all tempting fate each day we fly. We are all drawn to the dangerous. We do things that others can't or don't want to do. Let's try to do them as safely as possible!
I am not sure if I learned anything from that. I hope I did. The power was off and on so many times, the last time the cabinet must not have been fully closed and didn't engage the internal lever disconnecting the load, leaving the terminals and conductors live!
I filled out an accident report and called it a day.
BTW, the air handler STILL isn't working because we had no good contactors!
What a WASTE of a DAY!
I am going to tinker in the shop now.
BE SAFE!
