Harm wrote in post #13280044
Fun stuff. The highest I've had to go and play with is 480kV systems. But I don't do too much other than some inspections and advise for upgrading with a team of people
We have 500kV lines here too, but you probably are somewhat aware of the NA grid. I never got to work on that hot.
Big Apple Photography wrote in post #13280276
My grandpa (77) just had a mini-heart attack...
Sorry to hear, hope he recovers good.
Guineh wrote in post #13280290
Probably quite a few more amps that I'm playing with. 120v mains still scares the crap out of me. Can't imagine the stuff feeding that.
Though I remember a while back walking under a set of those really high voltage lines (I'm going to guess 400-500kV) and hearing them hum and crackle. It was a bit spooky, to be honest. I saw a video of a lineman working from a helicopter to perform maintenance on the line. he stuck out a probe, the arc jumped a few feet, then he was brought in closer until the probe was touching and he could hook a clip to the line, then climbed on, did his thing, and did the same thing in reverse.
Takes one heck of a heli pilot to hover within a couple feet of the power lines, that's for sure!
They are bonding on to bring themselves to the same potential as the line. I did my hot work out of a bucket on a crane with an insulated boom. The bucket had a metal liner, and we wore full body suits that had metal thread in the fabric. The suit was bonding to the bucket liner, ans as we got close we bonded to the line with a clamp on the end of a pole (hot-stick). This brought us up to the potential of the line. Kinda line a bird on a wire. Still, using tools we would still draw a significant arc when using them on connectors.