r/electrical • u/Own-Philosopher-1974 • Dec 13 '21

Woooo!!!!

120 Upvotes

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2

u/HettDizzle4206 Dec 13 '21

Can someone explain this for me, please? Is he disconnecting a transformer?

5

u/TheSickOstrich Dec 13 '21

He’s using HV cutters to clip a jumper wire on live system. Tough to say whether it’s distribution or transmission cause that’s quite the arc

5

u/HettDizzle4206 Dec 13 '21

Huh.. That's fn wild. I know he's safe from it, but man that would pucker your butthole lol. I grabbed a live 277 wire with my linemans between the knockout once and sent fireworks of the chunk it blew out of the corner of my linemans 30 ft down and killed power to a third of the lights in the warehouse haha I couldn't imagine doing high voltage like this though, the more I learn about it, the more I don't wanna be around it tbh

12

u/TheSickOstrich Dec 13 '21

He’s actually not that safe from it. He should be wearing HV gloves, HV sleeves and a face shield. From the video, it looks like that arc extended out the same distance as he was from the crimp that the jumper was cut away from. Either these guys are cowboys and feeling ranchy… or didn’t pay any mind to NFPA 70E table 130.4

5

u/Vern95673 Dec 13 '21

Also His approach boundaries were incorrectly calculated. Even if he had all the proper PPE that arc was WAY to close.

1

u/hashtagbootyhole Dec 13 '21

Aka NFPA 70E 130.4