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Zog
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Post subject: Update on the famous arc flash security camera video Posted: Thu Jul 16, 2009 11:40 am |
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Joined: Mon Jun 02, 2008 11:58 am Posts: 1103 Location: Charlotte, NC
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TxEngr
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Post subject: Posted: Mon Jul 20, 2009 8:57 am |
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Joined: Fri Jan 16, 2009 1:07 pm Posts: 67 Location: North Florida
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Zog,
Just to be clear, you're referring to the B&W video shot with security cameras where 3 individuals are in a peice of gear when it flashes?
Do you have any additional info on this accident? In particular, I was told that the heavy set gentleman was never able to return to work due to head injuries. True or False? It's a great training aid to show supervisors why they don't need to be over our shoulders when we're troubleshooting or doing other work but I like to have my facts straight.
Thanks again for posting.
TxEngr
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Zog
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Post subject: Posted: Mon Jul 20, 2009 9:47 am |
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Joined: Mon Jun 02, 2008 11:58 am Posts: 1103 Location: Charlotte, NC
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TxEngr
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Post subject: Posted: Mon Jul 20, 2009 1:08 pm |
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Joined: Fri Jan 16, 2009 1:07 pm Posts: 67 Location: North Florida
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Thanks Zog. That's good info and will be useful during training.
TxEngr
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Mike Frain
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Post subject: Posted: Tue Jul 21, 2009 5:29 am |
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Joined: Mon Jul 09, 2007 11:43 pm Posts: 60 Location: Sheffield, England
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Thanks Zog, I've heard so many versions of the story that it is good to have the facts..Mike
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Capt Jim
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Post subject: Posted: Tue Jul 21, 2009 8:00 am |
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Joined: Thu Nov 15, 2007 7:58 am Posts: 33 Location: NY
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Does anyone have a link to the video ?
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Jim Phillips (brainfiller)
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Post subject: Posted: Tue Jul 21, 2009 8:06 am |
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Joined: Mon Sep 17, 2007 5:00 pm Posts: 1578 Location: Scottsdale, Arizona
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Here it is.
[url="http://www.brainfiller.com/ARCFLASHFULL1.mpg"]World famous arc flash video that Zog mentioned[/url]
It's a pretty big file.
btw thanks for the update Zog.
I heard at a safety conference several years ago that the person blown to the left out of the video died. Amazing how the rumor mill can change a story. Thanks for passing along the info!
_________________ Jim Phillips, P.E. Brainfiller.com
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SLK537
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Post subject: Posted: Tue Jul 21, 2009 10:13 am |
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Joined: Fri Oct 17, 2008 2:24 am Posts: 3
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I had not looked at this one in a while. The force must have been quite strong, launching that fairly large person on his back like that. Was he blinded? I see he grabs his eyes?
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Ralpa494
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Post subject: Posted: Wed Jul 22, 2009 6:50 pm |
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Joined: Tue Feb 24, 2009 5:06 pm Posts: 3 Location: SE Wisconsin
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Some body in one of the last 70E classes said they were working at Patrick Cudahy and all the guys were back. They don't wear the polyester smocks any more. Did the big fire there 2 weeks or so ago make the national news?
The most seriously injured guy was in a drug induced coma for around two months.
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elihuiv
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Post subject: Posted: Tue Aug 25, 2009 11:07 am |
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Joined: Sun Jan 04, 2009 5:00 pm Posts: 286 Location: Louisville, KY
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Accident at Cudhay
The large guy was barely burned. He was the supervisor. He had a sun burn to his face and could have returned to work quickly but had issues returning. The other two will never return to work is my understanding. One who goes off camera has about 45% body burn and had a large part of his scalp badly burned by a polyester hairnet (food packers electrical workers are now required by NFPA 70E-2009 to wear arc-rated hairnets and beardnets).
The arc blast from a medium voltage switchgear like this would be VERY low. The fault current is the biggest predictor of arc shockwave and fault currents on 15kV gear is rarely more than 8kA. The flash is substantial. Ignition of polyester requires 2-5 cal/cm2. The burning of the poly-cotton coverall does most of the damage.
One of the guys was in a coma for sometime.
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Zog
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Post subject: Posted: Mon Dec 14, 2009 1:17 pm |
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Joined: Mon Jun 02, 2008 11:58 am Posts: 1103 Location: Charlotte, NC
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Brodie
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Post subject: Posted: Fri Dec 25, 2009 5:57 pm |
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Joined: Fri Dec 04, 2009 8:15 pm Posts: 27 Location: washington
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Percentages
I wonder to what degree or reasons the worker was found to be 10% negligent?
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