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Old January 16th 19, 12:01 PM posted to rec.bicycles.tech
news18
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Default Electric dangers

On Wed, 16 Jan 2019 03:10:29 +0000, David Scheidt wrote:

news18 wrote:
:On Tue, 15 Jan 2019 17:14:43 -0800, Mark J. wrote:

: On 1/14/2019 3:22 PM, John B. Slocomb wrote:
: On Mon, 14 Jan 2019 13:36:48 -0500, Frank Krygowski :
wrote:
:
: https://www.9news.com.au/2019/01/14/...de-news-man-s-
:electric-bike-explodes-almost-starts-bushfire :
: I liked the part where it was said that "The motor's lithium
batteries : and CO2 cartridges from its repair kit had ignited".
:
: I suspect that the reporter might have a bit at odds with the facts
at : that point.
:
: I noticed that too; I think the intent was "batteries ignited and CO2
: cartridges /exploded/," which fits the later text and makes sense in
: context. Then an editor caught hold of it.
:
: Mark J.

:ALL gas sylinders explode over here, even though they are engineered to
:vent the contents at too high a pressure. IME, CO2 cartridges don't
have :that enginering, so theryprobably did explode. Situated above the
:flamming battery probably wasn't a good position in this case.

I've seen morons throw 16 g CO2 cartridges into a fire. They burst,
at the end where they're punctured by the inflator. I assume that's
intentional. They do fly a long way though....


The unpredictability of the direction of travel and that much hot metal
is a mighty reason not to do that. OTOH...

The closest to that is when I was a young teenager on a camp, a safety
demonstration was why you didn't place an unpunctured tin in the fire. We
used a tin of peas and were all sitting well back from the fire, then....
One of our well meaning leaders decided then was the time to wander over
and rabbit on about something and we waited for him to clam up and wander
off.

Sigh, the fact that all of us were sitting well back from the campfire on
a cold night should have twigged the brain cells, then KABOOM.

His involuntary start propelled him back about 3' without any obvious
effort. It was impossible to contain our mirth and he eventually say the
funny side from the "green pants" he was now wearing. It has split neatly
along the side seam and sprayed his gmboots and legs.

Once I took up bicycle touring the only things that I caused to explode
was popcorn kernels that I used over the camp fire to make popcorn on
camping trips. That and communal stews were the only reasons for carrying
a 4 litre billy.


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