COAL MINE FATALITY - On March 23, 2003, a 51-year-old section foreman, with 25 years mining experience, sustained serious burn injuries from a 480-volt receptacle located on a section power center. The injuries apparently occurred when the victim used the energized receptacle to detonate explosives while developing a boom-hole. He died at a burn center on April 10, 2003. The victim was not a qualified electrician or a certified shot-firer.
I've worked with explosives before (and yes I do have an explosives licence) and doing something as stupid as this would just never be done anywhere here. This guy got what was coming to him, I hate to say. Explosives are not for incompetent people.
Re: 480V Detonator???#68245 07/31/0602:44 AM07/31/0602:44 AM
I was an explosives engineer, [22 years Royal Ordnance]. No licence, [strictly for civvies]. The 480v did not detonate the explosives, period. Only a proper detonator could do that. This guy probably used the voltage to set off an electric detonator. I guess the injuries were caused at the panel shown, by a short, since only a complete wazzock would have put his contactor next the blowhole. [ Analagy: sawing off the branch you're standing on.] In which case, this was purely an electrical accident and the link to explosives is not an issue, except to the media ignoramusses. I will say that eventually you can get complacent about hazards in any profession, so this guy deserves our sympathy, where but for the grace of God....
In my case, I broke both my eardums.
Take care today.
Wood work but can't!
Re: 480V Detonator???#68246 07/31/0606:55 AM07/31/0606:55 AM
also, This fatality was determined to be chargeable to the coal mining industry on May 15, 2003.
the guy was not qualified / certified but companies most likely had to install yet another idiot-proof modification to equipment throughout the coal mining industry to prevent this type of accident from recurring and of course, more restrictions, more $$$, more training, more lost time
"The difference between genius and stupidity ....., ......genius has its limits " Einstein
Re: 480V Detonator???#68247 07/31/0608:02 AM07/31/0608:02 AM