I had always used "just a belt" until I worked for Motorola from about ? 95--2000 ? or so. One of the first things they did is send several of us to "tower climbing school" use to be "Com Train" back then. Nice guy, gone now, I dont recall his name right now. He came into class to demo a problem, and I could see it coming. He had a dilapidated D ring on about 6" of frayed waist belt, and a non-lock safety hook on about 6" of frayed lanyard. "You all know these, right?" Snaps them together, and obviously practiced, held them above his head, gave a magic twist, and POOF!!! they are disconnected. Turns out there's been at least a couple of fatalities. guys get the work lanyard accidently twisted, maybe snagged against the tower, and the damn thing comes apart, and next thing ya know, you are on the ground, dead
Tow school was quite interesting. They took us out to a big tower to show us various things "in practice," as well as "jumping" a couple of different shock absorb units to show how those worked. Got a guy up just high enough to jump and still be feet off the ground, and rip a brand new shock strap And, obviously, there's been changes since then.
I've always and still am VERY ANGRY AND CRITICAL of tower manufacturers who don't step up. I think the cable brake system on these cell towers (monopoles) should be revised, and I think the damn climbing pegs should be outlawed, and "real" ladders installed. and I think ALL of the Rohn self supporting stuff that is large enough to have a center ladder should be required to, instead of the one-leg staggered pegs. And there was a fatality with THOSE as well
I've posted that one before...........