pic: ummm......what?

[EricH]

David, IIRC, it was some form of short circuit. It's been a few years, but it was in a row of batteries that were charging. I looked around to see several people rush over to try to figure out how to disconnect the battery that was throwing sparks. Like I said, it's been a few years, so I forget the details like what exactly fused to what.

Also, I never said to touch the circuit breaker with your hand. I said to use an insulated poke stick. That way, there is zero chance that electricity goes to your hand.

[Andrew Y.]

eric, thanks for your point of view...but my professional experience and my advisors at work all agree my kids took the correct action by unplugging the battery...even the OSHA dude at work agrees...and him and i NEVER agree.

[Bill_B]

How does the replacement look now? Look carefully for cracks and feel the smoothness of the new breaker in the places the other one failed. Not sure about your situation, but I have seen Bakelite body terminal strips give out because the mounting holes were ever-so slightly misaligned. Tightening the mounting screws for the terminal strip didn't break the strip but it did stress it so that normal usage eventually caused failure. If the mounting hardware didn't slide into place easily or wasn't perpendicular to the mounting plate, then tightening the mounting nuts may have set up internal stresses that were later released by your collision. It would be harder to develop that stress in a more flexible or more compliant base, like wood or lexan.

[Hawiian Cadder]

This, is why all of our electronics are secured via Zip Tie, and not solid mounting hard-wear, its faster, easier, as secure.

[santosh]

Originally Posted by Hawiian Cadder

This, is why all of our electronics are secured via Zip Tie, and not solid mounting hard-wear, its faster, easier, as secure.

The breaker and the cRIO are the only things that we dont have ziptied down. Im still not 100% sure it was because we got hit hard a few times. But it is definitely a possibility

[Billfred]

First it was the digital sidecar at Peachtree, now a main breaker in North Carolina.

If you guys make Einstein, I'm bringing a fire extinguisher.

[santosh]

Originally Posted by Andrew Y.

eric, thanks for your point of view...but my professional experience and my advisors at work all agree my kids took the correct action by unplugging the battery...even the OSHA dude at work agrees...and him and i NEVER agree.

I dont understand the smileys. there is nothing fun or happy about safety issues such as these.

[MishraArtificer]

Originally Posted by santosh

I dont understand the smileys. there is nothing fun or happy about safety issues such as these.

...I believe the smileys were directed at the incredible circumstance of him and the Occupational Safety and Health Administration guy actually agreeing on something.