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teddillard
23 April 2013, 0813
I guess "Batteries" is as good a place as any to put this, but we've been talking about high-voltage and the dangers of such in other threads. Here's a friend of mine's video showing what happens to a bus bar at 480V:

<iframe src="http://player.vimeo.com/video/56859185" width="400" height="300" frameborder="0" webkitAllowFullScreen mozallowfullscreen allowFullScreen></iframe>

Athlon
23 April 2013, 1042
High voltage and High Amps , High voltage alone is much more friendly like this one

http://www.youtube.com/watch?v=LHSVKuHqyKE

liveforphysics
23 April 2013, 1112
That looked like kilo-Amps of fun to me!

Harold in CR
23 April 2013, 1118
Brings back fond memories from my Lineman days, especially storm damage repairs. That was with 7200-12,500 Volts at 200 Amps.

Hugues
23 April 2013, 1143
But what is actually happening ? does not look like a typical plasma event, more like a series of explosion...:confused:

teddillard
23 April 2013, 1232
What's happening is that a bus bar is turning into vapor. :rolleyes:

Richard230
23 April 2013, 1504
Eek. I hope that bus bar connection isn't part of Boeing's battery fix. Speaking of Boeing, I hear they got FAA approval to install their batteries in a Franklin Stove and duct the flue out the rear of the plane. That should fix the problem. :rolleyes:

Doctorbass
23 April 2013, 2048
The big difference between AC and DC plasma event is that on the AC, the arc blow out 120 times per second so it kind of instinguish 120 times per second... With DC, it's continuous! and freakin impressive!

Plasmaboy know something about that! ( the guy with the EV Datsun that is street legal and do 10.2s on the 1/4 mile..

Here is an interesting session about DC arc flash calculation: http://www.youtube.com/watch?v=-D0z9XGmuZI

jonescg
24 April 2013, 0151
That is so cool! I was thinking after I'm done racing my pack I should set up a similar experiment at 700 V. Although the fuses should stop it soon enough.