That video's been posted here before. Not that I mind seeing it again. "Powerful" stuff. (boo-hiss bad pun)
Unbelievable about KC substations getting grounds swiped. Maybe one night someone will cut the wrong wire and BAM! No more crackhead thief. In Dallas they're swiping condensers and stripping RTU's for the copper. They're even going after the metal covers on light pole bases all over town. Pulling them off and leaving all the wiring hanging out in the open for some curious kid or gnawing squirrel to grab hold of. Stupid druggies.
Electricity makes refrigeration happen.
Refrigeration makes the HVAC psychrometric process happen.
HVAC pyschrometrics is what makes indoor human comfort happen...IF the ducts AND the building envelope cooperate.
A building is NOT beautiful unless it is also comfortable.
I went to an arc flash class and this video was shown.I beleive the gas canisters to prevent the arc somehow failed. I think the gas they used was something called fx-6,the instructor said this gas was supposed to be the most chemically inert gas known.I think I recall him saying that was 125000 volt switch.
Originally posted by roaddog I went to an arc flash class and this video was shown.
Aint that something else. I know it's all safety and stuff but can you see sparky wearing a high cal suit to change a breaker in a 480 panel ?? I know lots of electricians and when I mention arc flash hazzard they look at me all glassy eyed like I just spoke alien.