Re: As an ex industrial Sparky, I have to agree.
I was a 2nd year apprentice on my first shop floor excursion, and I followed the instructions given.
1/ Isolator to "OFF"
2/ Open Isolator/Fuse board and unbolt the fuses.
I said 100A, but thinking back they may have been 300A fuses, fricking HUGE, I have seen smaller thermos flasks.
(This was some Italian gear with no way to lock off).
For some reason it had been wired directly from the sub-station, so the Isolator/Fuse board for the machine was it; they had to get the sub-station switched off to make it safe.
Yeah, good sparkys do it with one hand behind their back, although in this case I think my particularly dry skin helped (I can usually hold 240V mains and not feel it).
16kV hurts though, luckily it was low current.
Biting the hand that feeds IT
