I saw a video of some indian guy get converted into a big piece of smouldering charcoal in a split second doing something similar.
These people were lucky..
I think I know the video you’re talking about. The guy turned into a human lightning bolt.
That was 13 kV, not 600 V.
But 600 V is plenty, especially when it’s backed up by 20 or 30 thousand amps, which a subway third rail is probably capable of.