At the Ammo plants' Danger Areas and some of the Bomb Dumps that I worked in, we had to wear special conducting-footwear and pass a test by a machine at the entry points which showed we were conductive to ground. All except the Electrical Department, who all had a concession from the Director to wear special non-conducting boots. If the Safety Man caught you in the wrong boots on 'Clean-side' without a concession, (the outside world was Dirty-side!), you were on a v. serious fizzer; (wrong boots- couldn't have passed the test); and usually got 3 days suspension no pay. The very real danger from a static-spark putting a dozen men into low orbit outweighed the remote danger from electrocution- except for the guys who had to meddle in the iron-clads. Electric dets. were the worst- even the current your body uses in the nerves to control the muscles in your hand would set them off, so we used to pick them up with loooonnnnggg wooden tweezers behind a poly-carb screen!
Also, I often saw 'sparks' put the fuses from any circuit he isolated into his pocket before starting work, so no idiot could re-energise it while he was working, which I thought was a good idea.
Alan

Wood work but can't!