Thats quite fascinating to watch, however I'm not sure if I missed it but I didn't see the tower being earthed. Those installers must have some impressive protection in place.
I used to be a volunteer on an emergency lifeboat crew, we would do a lot of drills with a man on a winch and the first rule is, don't touch until he's earthed. Helicopters pick up a hell of a lot of static electricity so you normally see a small earthing line hanging below the man on the end of the line.
One time we were practicing fast recovery, the boat and the helicopter doing crew exchange at high speed. We screwed it up and the static charge blew a hole in the side of the boat!
I used to be a volunteer on an emergency lifeboat crew, we would do a lot of drills with a man on a winch and the first rule is, don't touch until he's earthed. Helicopters pick up a hell of a lot of static electricity so you normally see a small earthing line hanging below the man on the end of the line.
One time we were practicing fast recovery, the boat and the helicopter doing crew exchange at high speed. We screwed it up and the static charge blew a hole in the side of the boat!