Cutting battery cables

Safety and hazards on the job...
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Postby guitarmedic87 » Mon May 14, 2012 7:38 pm


I watched a video a while back about this video you have posted. I cant find it now but it had "experts" who had the inside information about what really happened on this scene. I believe the battery was not disconnected, as mentioned in the video and that the FFs were using the spreaders around the centre console area when they accidently crushed either a computer module, or a crush sensor causing the bag to deploy. I wish I could find the video because it did a really good job of explaining what really went on.. Air Bags going off after the initial event may be just a myth but I wouldnt go as far as to say its not possible. Give air bags the respect they deserve, stay away from them, take every precaution necessary to reduce the chances of these bags deploying and disconnect the battery. If you make a little extra work for our friends in blue by making OUR scene safe, then so be it.

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Postby 3rdGen » Mon May 14, 2012 7:44 pm


That is dayton ohio. the only documented case of air bags going off other than during the accident. would not have happened if they disconnected and didn't crush the srs brain with speaders

they used the spreaders against the trans hump (which housed the brain of the system) trying to move the seat to get a guy out of the back seat. he described it as getting hit in the head with a hammer and not knowing what to do. It is the only documented occurance.

I was suprised to learn that the capacitor bleed down time is irrelevant as well. Because you need the three facotors for the bags to deploy the capacitor is a back up to provide power for the split second that the sensor is hit under the right speed/deceleration conditions at the right time AND the battery is severed from the system...then and only then do the capacitors power the system.

1) turn off ignition
2) turn off head lights
3) disconnect battery

now its just metal and plastic...
"You can't be wrong for doing the right thing"

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Postby Buckster » Thu May 17, 2012 12:21 am

what makes this situation even more odd is this RCMP member is also a FF on a neighbouring dept......anyway, thanks for the info lads I'll let you know what happens
I may not know karate, but I know KA-razy, and I'm not afraid to use it!

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Postby dentedhead » Thu May 17, 2012 8:22 pm


That was most likely set off because someone didnt look close enough at the posts to see if there were side curtains.We make it practice to take the extra seconds to check and expose any ancillary bags.Great illustration of what can go wrong.
Thousand a week for hide and seek on call when Im paid to be.

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