[Public-List] Fire

[Michael Grosh]

There were two versions of halon. The first was found to damage ozone. The
second, 1302, was found to form a toxic gas in the presence of fire,
different than dying from lack of oxygen, apparently.
I have a brand new tug launched in May with fixed co2.
Co2 is not rated for class A or B fires-electrical only, in other words,
unless one is flooding a space to displace oxygen, shutting hatches,
blowers, etc.
It can also stop a runaway engine, most likely cracking the block in the
process.

MichaelGrosh
#220 Checkmate
On Jul 12, 2011 7:22 PM, "Robert Kirk" <isobar at verizon.net> wrote:
> At 04:59 PM 7/12/2011, Stephen Gwyn wrote:
>>...Fire extinguishers really work. The make a real mess however as you can

>>see in the photos here: ...
>
> Stephen (and anyone else who is interested): I don't know about Canada's
> regulations, but in the US, the officially required boat fire
extinguishers
> are effective, but leave a god-awful powder residue which turns to a slimy

> coating whick often ruins what you are trying to save. Thankfully, they
put
> the fire out as you've seen. Some years ago the USA banned for
> environmental reasons (ozone layer), the excellent halon fire
extinguishers
> [except for automatic engine compartment systems, I think] . They also put

> the fire out but leave everything clean. I bought a quantity of hand held
> halon extinguishers for boat and household use just before they went off
> the market since they leave no residue in a kitchen or boat fire and work
> on Class A,B,or C fires. By all means, keep the legal extinguishers aboard

> for inspection reasons but try to obtain a halon or CO2 bottle for real
> use. CO2 is almost as good. I'm not sure where you can get a CO2 bottle
> now, but I think they are still legal.
>
> Bob Kirk
> Isobar 181
>
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