Mailing List Archive Mailing List Archive
Hi!
Le/On13 Oct 96 @ 14:24, vous ecrivites/you wrote:
> I believe you will find that most chemical O2 generators are highly
> water reactive. Also they generate a fair amount of heat when
> activated. (Read up on the Value Jet crash in Miami). They have
> been in use as fire-fighting life-support systems for years. Most
> Navies still use them on board ship. They are referred to as OBA's,
> Oxygen Breathing Apparatus. I hated the damn things when I was in
> the service. Pain-in-the butt to use, but they did work. As a
> fire-fighter I still like my good-'ol SCBA.
Well, since you're a firefighter, here is a few questions I always
wanted to ask about SCBA but were afaid to ask (and I'm sure that
it'll entertain if not inform other subscribers)...
- The (well, some) tanks are composite, right? Are there any special
precautions for handling those? What is the service pressure? Do you
have to "VIP" the tank if you breathe it dry?
- The valve seems to integrate some kind of pressure gauge. Is it
placed before or after the "faucet"?
- Is there any fundamental differences between the regulator used (I
suppose it's a 2 stage reg) and a run-of-the-mill SCUBA reg?
- Is the air input in the mask itself directed against the "glass" to
avoid fogging (like some Russian or Israeli gas mask someone on this
list talked about a while back)?
(subsidiary question to anyone who knows about AGA FFMs: I tried one
a while back, and was surprised that it did not fog. Does the AGA
direct the airflow on the "glass", too???)
- Aside from plain vanilla talking and shouting, are there instances
where radio is used in those (fire-fighting) masks?
- Do you have to follow any specific "rule-of-thirds"-like rules
regarding air consumtion monitoring when on SCBA?
- Would you advise against using a "normal"* SCUBA tank and reg plus
mask in a fire environment? I ask this because I remember, as a kid,
reading in a French SCUBA diving textbook that "SCUBA tanks®s
should be mandatory in houses in case of a fire, gas leak or whatever
chemical spill"...
* Of course, "normality" varies according to your level of
strokery...
Thanks in advance...
------------------ Pour la Republique Francaise du Quebec ------------------
You don't have to worry about those immigrants sitting in the bus talking in
some language you can't understand. They are (unfortunately) not plotting to
overturn Western civilization but only talking about their personal problems
~~~ Last dives: the Aloha, the Effie Mae and the Wolfe Islander, 25 mfw ~~~
This is a long signature; Toto, I think we're on FIDONET anymore...
Marc Dufour - [\] ACUC6 31874 - TDI CD-0197 - http://www.accent.net/emdx
Navigate by Author:
[Previous]
[Next]
[Author Search Index]
Navigate by Subject:
[Previous]
[Next]
[Subject Search Index]
[Send Reply] [Send Message with New Topic]
[Search Selection] [Mailing List Home] [Home]