HOLY CRAP... cast iron bollocks?! →
well perhaps, but very well insulated ones, anyhow.
High Voltage Cable Inspection
So I got into a discussion with a friend about the arcing on the switchgear in one of the youtube links in this post
Dude is an electrical engineer. After some discussion in IM, during which I learned a lot about 500kV lines, he sent me the above, completely astonishing link of how power lines are cleaned and serviced.
The guy doing the inspection is in his 60's, incidentally.