Wednesday, Jul 13, 2005 at 11:02
Hi rengatt
>don't know if many people watch Mythbusters on ABC
Tried it once but decided the target audience was 15 year old boys :)
>but they attempted to
test the refuelling fire scenario with
>mobile phones.
Given the output power of mobile phones the chances of it generating enough field strength to cause a spark is probably less than being struck by lightening whilst filling up. Although it is just possible that poor battery contacts in a mobile might (on a good day with a back wind) generate a spark.
>I wouldn't take the Mythbusters findings as gospel as they don't
>have a what you could call a controlled environment during their
>experiments but it is food for thought.
The US has had quite a few fires/explosions at filling stations where there is very strong circumstantial evidence to indicate static as the cause. And almost everyone has first hand experience of the energy produced when their car get a decent build-up of static - it's enough
to give an unpleasant shock to the human body and more than enough volts to produce a spark which is all petrol vapour needs. It's a subject which is not getting enough exposure but as it's one most non technical people will not naturally understand there really needs to be more education about it.
Mike Harding
PS. Apparently diesel does produce a lot more static than petrol when you pour it but because it has a lower flash point it’s not a big issue.
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