Safety Question!
HI ExpoZ,
my question this time goes far out of Electronics, but i think you guys, are Jacks of all, but Masters of some that you might be masters in the thinkg i am asking about.Anyway. not to make it seem long, my question is about why Do'nt we use the Co2 extinguishers to fight planes Fires? and why aint there a fire extinguisher upon the plane?
Muhammad89
When you Teach, You Learn Twice!
Because the CO2 will poison the passengers?
I do not answer private messages asking for help because no one else can: benefit from advice I may give or correct me if I'm wrong.
Please ask on the open forum if you have a question and I'll be happy to help, if I know the answer.
We were told CO2 gas is the biggest contributed factor to global warming issues.Originally Posted by Muhammad89
Passengers cannot extinguish an engine fire from "inside" the plane because engines are mounted on the wings outside the plane cabin.and why aint there a fire extinguisher upon the plane?
L.Chung
CO2 is toxic, not as much as its evil little brother CO (carbon monoxide). Fire extingushers use compressed CO2, so setting one off in a confined space blows a lot of the oxygen elsewhere, leaving a concentrated amount of CO2. You ahve to remember this is one of the human bodies waste products, our system doesn't want large concentrations of it (but we require a small amount in our blood to maintain pH levels).
Can't use them on planes because its a closed system, can't exactly open a window to ventilate now can we?
Blueteeth
Inconsistency is the key to flexibility!
what if the plane was emptied from Passengo, why wouldnt Co2 be used ?
When you Teach, You Learn Twice!
Ok so you have an empty plane. Still no ventilation. So any fire fighters would require breathing apparatus. Plus CO2 isn't the only type of fire extinguisher, water foam, pwder etc... CO2 combats fires by dispelled the local oxygen content - no oxygen, no fire. Similarly, no oxygen, no breathing.what if the plane was emptied from Passengo, why wouldnt Co2 be used ?
And as someone else pointed out, most fires occur on the engines. And I don't think they allow flammable substances in the cabinIn answer to your question, its jsut a case of common sense. There are situations where CO2 should be used, and is effective. Confined spaces isn't one of them.
Blueteeth
Inconsistency is the key to flexibility!
[QUOTE=eblc1388;340227]We were told CO2 gas is the biggest contributed factor to global warming issues.
if Co2 was the biggest contributed factor to global warming, it would be globaly banned just like what happened to the BCF!
Imagine the fire is outside upon the engine, why Co2 isnt used as we know its use with Electrical & electronics fires(the motor is electrically or maybe electronically operated)
Muhammad89
When you Teach, You Learn Twice!
What if the plane isn't empty?what if the plane was emptied from Passengo, why wouldnt Co2 be used ?
Why would you have two, fire extinguishers for an empty and full plane when you only need one?
I do not answer private messages asking for help because no one else can: benefit from advice I may give or correct me if I'm wrong.
Please ask on the open forum if you have a question and I'll be happy to help, if I know the answer.
Where did you get the idea that fire extinguishers were not aboard aircraft? They most certainly are aboard most aircraft and all commercial aircraft -- at least those regulated by the FAA and similar agencies in most nations. See: http://www.fire.tc.faa.gov/ppt/syste...E_Ottawa.ppt#1
As for the choice of extinguisher, there are many considerations. In general, Halon is used in preference to other types. The following is from a large manufacturer of aircraft fire extinguishers:
JohnWater is very effective on class A fires (common combustibles like wood and paper). Halon is effective on common combustibles (although not as effective as water), but Halon is also effective on class B (flammable liquids), and it does not conduct electricity back to the extinguisher operator (class C).
Halon is similar to CO2 in that it is suitable for use in cold weather and leaves no residue. Unlike CO2, however, Halon does not displace the air out of the area where it is dispensed. Even for the toughest fires, less than an 8% concentration of Halon by volume is required, leaving plenty of air to use in the evacuation process. Also, unlike CO2, there is no danger of "cold shocking" avionics or other sensitive electrical equipment.
Dry chemical fire extinguishers are effective on A, B and C class fires. However, they are highly corrosive, and create billowing clouds of choking dust; dry chemical extinguishers should not be used in an aviation environment.
I for one would support the banning of CO2. Don't hold your breath though.
L.Chung
[QUOTE=Muhammad89;340215]HI ExpoZ,
my question this time goes far out of Electronics, but i think you guys, are Jacks of all, but Masters of some that you might be masters in the thinkg i am asking about.Anyway. not to make it seem long, my question is about why Do'nt we use the Co2 extinguishers to fight planes Fires? and why aint there a fire extinguisher upon the plane?
Muhamma89
hi there!
Safety!!!hmmmmmmm!
I guess i can have my say into this field!
Muhammad90
hey duke!
it is not up to me or yo, dude!! that has ben agreed on internationally.
whatever!Halon is much dangerous than Co2 on Environment!
see this !
Yes, Halon production in North America has ceased due to the signing of the Montreal Protocol. The banning of the manufacture of this agent was required due to the fact that Halon's contain C.F.C.'s(Chlorofluorocarbons).
you can also have a look at this !
http://www.unep.org/Ozone/pdf/htoc2002.pdf
Heh I see what you did there...
Inconsistency is the key to flexibility!
Halon is also much more poisonous than Co2.
But obviously not for the same reasons.
Larry
Confucius says: "One in three is a teacher."
Lol, here in Aus, it's not yet banned but will require a permit to produce in 2 years time. Guess it's time to leave the arse end of the planet. Problem is I'm running out of corners to run to!!
Mike.
P.S. how many corners has this planet got?
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