Home » Public Forums » GMCnet » Halo Fire Extinguisher
| Halo Fire Extinguisher [message #220010] |
Mon, 26 August 2013 14:55  |
lawrence gaskins
Messages: 8
Registered: January 2004
Karma: 0
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Junior Member |
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Hi All , Halon fire extinguisher for Norcold frig has leaked down this summer . How is the best way to get refilled ?
Purchase a new cylinder or send empty cylinder to get refilled ?
Heading to Chillicothe , Ohio . Ross County fair grounds tomorrow for the Easy Rider motorcycle rodeo for rest of the week . Any one here been there ? This will be fourth year , I like being able to ride motorized vehicles at the fair ground .
The allow riding lawn mowers ,ATV , home made vehicles ,bar stools even motorized roller skates . I will be towing 2009 Polaris RZR side by side ATV . Have used golf cart but it does not have good braking if loaded with three adults and stoping on down hill grade . LOL This is a good place for a new hobbie of photos .
Lawrence Gaskins
West Union Wv
X 1973 Painted Desert
199 American Eagle
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| Re: [GMCnet] Halo Fire Extinguisher [message #220011 is a reply to message #220010] |
Mon, 26 August 2013 15:01  |
James Hupy
Messages: 6806
Registered: May 2010
Karma: -62
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Senior Member |
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Call Jim Bounds for best shipping info, send it to him for refill or
exchange. Make sure that it didn't discharge. If it did, it paid for itself
many times over.
Jim Hupy
Salem, Or
78 GMC Royale 403
On Aug 26, 2013 12:55 PM, "lawrence gaskins" <gmclawrence@hotmail.com>
wrote:
>
>
> Hi All , Halon fire extinguisher for Norcold frig has leaked down this
> summer . How is the best way to get refilled ?
> Purchase a new cylinder or send empty cylinder to get refilled ?
>
> Heading to Chillicothe , Ohio . Ross County fair grounds tomorrow for the
> Easy Rider motorcycle rodeo for rest of the week . Any one here been there
> ? This will be fourth year , I like being able to ride motorized vehicles
> at the fair ground .
> The allow riding lawn mowers ,ATV , home made vehicles ,bar stools even
> motorized roller skates . I will be towing 2009 Polaris RZR side by side
> ATV . Have used golf cart but it does not have good braking if loaded with
> three adults and stoping on down hill grade . LOL This is a good place for
> a new hobbie of photos .
>
> Lawrence Gaskins
> West Union Wv
>
> X 1973 Painted Desert
> 199 American Eagle
>
>
> _______________________________________________
> GMCnet mailing list
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| Re: [GMCnet] Halo Fire Extinguisher [message #220012 is a reply to message #220011] |
Mon, 26 August 2013 16:35 |
Joe Weir
Messages: 769
Registered: February 2013
Location: Columbia, SC
Karma: 7
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| James Hupy wrote on Mon, 26 August 2013 15:01 |
Call Jim Bounds for best shipping info, send it to him for refill or
exchange. Make sure that it didn't discharge. If it did, it paid for itself
many times over.
Jim Hupy
|
Jim has a nice selection of automatic activated halon bottles, something for every corner of the coach. For the price they are a no brainer.
76 Birchaven - "Wicked Mistress" - New engine, trans, alum radiator, brakes, Sully airbags, fuel lines, seats, adult beverage center... those Coachmen guys were really thinking about us second hand owners by including that beverage center...
Columbia, SC.
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| Re: [GMCnet] Halo Fire Extinguisher [message #220015 is a reply to message #220013] |
Mon, 26 August 2013 16:56 |
Gary Worobec
Messages: 867
Registered: May 2005
Karma: -1
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Senior Member |
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I've got one of Jim's engine compartment extinguishers and it uses kind of a
foamy liquid. I know because I inadvertently discharged it in the cab of the
coach. The handle caught on something as I was installing it. The little
removeable safety bolt had fallen out in shipping and I did not notice it. I
will say the stuff has a nice fresh smell and cleans up very well. Vinyl
upholstery looked great. Anyway Jim was kind enough to refill it for me at
no charge.
Thanks,
Gary and Joanne Worobec
1973 GMC Glacier
Anza, CA
-----Original Message-----
From: gmclist-bounces@temp.gmcnet.org
[mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of Kelvin Dietz
Sent: Monday, August 26, 2013 2:46 PM
To: gmclist@temp.gmcnet.org
Subject: Re: [GMCnet] Halo Fire Extinguisher
On 8/26/2013 2:35 PM, Joe Weir wrote:
>
> James Hupy wrote on Mon, 26 August 2013 15:01
>> Call Jim Bounds for best shipping info, send it to him for refill or
>> exchange. Make sure that it didn't discharge. If it did, it paid for
>> itself many times over.
>> Jim Hupy
>
> Jim has a nice selection of automatic activated halon bottles, something
for every corner of the coach. For the price they are a no brainer.
>
A buddy of mine is in the fire extinguisher business.
He wondered if anyone has actually had occasion to USE one of the engine
compartment extinguishers...
He's concerned that the halon would have a hard time putting out the
fire if the coach was going down the road. Not a problem if you were
sitting still... but moving?
Anyone willing to pipe in? JimB, perhaps?
Kelvin
'73 23' with one of JimB's engine compartment extinguishers installed..
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| Re: [GMCnet] Halo Fire Extinguisher [message #220042 is a reply to message #220036] |
Mon, 26 August 2013 21:09 |
kelvin
Messages: 608
Registered: February 2004
Location: Eugene, OR
Karma: 0
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On 8/26/2013 6:17 PM, Jim Galbavy wrote:
> Kelvin,
> If you would reread Lawence's message it is not in the GMC's engine compartment but the fridge compartment. Halon should only be used in an enclosed external compartment(like generator or fridge). An engine compartment that is open at the bottom should use a foam product.
Yes, I realized where Lawrence's system was.
I was hijacking the thread and responding to this:
>>Jim has a nice selection of automatic activated halon bottles,
something for every corner of the coach.
My extinguisher is a SS-50 filled with Halon 1211. That's what Jim was
selling at the time - and still is.
*SS-50*, A 3 pound "Clean Agent Gas" (*Halon 1211)* larger system, this
unit comes also in straight or 90 degree head configuration. Available
charged with *Halon 1211 *or *AFFF (Foam)* this unit is for larger
enclosed compartments up to 72cf enclosed compartments. automatic
trigger (specify application when ordering) --*$325
* In hindsight would it have been wise to wait for the AFFF foam? Since
I've had no fires since installing this in 2009, I suppose so.
That said... is my investment in this extinguisher justified? Literature
that came with the system says that you only need 9% Halon in the air to
smother a fire. So considering the GMC engine compartment is a big,
upside-down box, is this thing going to work?
Has anyone actually had it work at speed?
Probably not. As soon as you proactively protect yourself the Universe
somehow knows and doesn't bother you anymore...
Kelvin
'73 23' with Halon protection...
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| Re: [GMCnet] Halo Fire Extinguisher [message #220047 is a reply to message #220042] |
Mon, 26 August 2013 21:45 |
Jim Galbavy
Messages: 1443
Registered: August 2007
Karma: 7
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Senior Member |
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Kevin,
I too have a FFP SS-50 Halon in my engine compartment that Ralph installed back about 6-7 years ago. I have added a Foam SS-50 to the engine compartment recently but left the SS-50 Halon in place. It should sense a fire, knock it out and along with the foam keep it out. Is the SS-50 Halon alone enough by itself in the engine compartment? I think so as long as you are using an electric fuel pump that is tied to the starter or a mechanical fuel pump that stops with the engine off. You don't want to be pumping gas or oil to the fire. Would you get a reflash? Maybe.
Will there still be enough Halon to put it out? Depends. The engine and fan needs to be off as soon as you can do it and the coach stopped. Remember that you are not primarily trying to fight a fire, you are buying time to get you and your family out to safety. That is the cake. The icing is saving the coach.
jim galbavy
'73 x-CL ANNIE
Lake Mary, Fl
[Updated on: Mon, 26 August 2013 21:46] Report message to a moderator |
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| Re: Halo Fire Extinguisher [message #220061 is a reply to message #220036] |
Mon, 26 August 2013 22:50 |
lawrence gaskins
Messages: 8
Registered: January 2004
Karma: 0
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Junior Member |
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Hi Jim Hupy & Jim Galby
I purchased it from Jim Bounds and see that will be a good way to get refilled .
Contacting Jim and shipping will have to wait till next week ,going camping tomorrow .
Thank goodness it was not unloaded from a fire .
Motor home has been stored inside plugged into electric for 2 1/2 months not being used . Getting ready for a trip the Norcold had no electric power . A black box installed by Norcold recall had clicked off . This second generation recall is designed to shut down if frig chimney overheats . Frig was working fine when shut down few months ago . Research showed that a magnet positioned across top of box clicked the power back on . Power restored and frig working fine for the last four days .
I think a power surge clicked off the frig black box off because the power strip for satellite box was also off . Had to push the reset button on power strip .
A surge protector is always used on the 50 amp shore power cord .
All systems ready to go camping with full coverage insurance in effect .
Lawrence Gaskins
GmcLawrence
X 1973 GMC Painted Desert
1999 American Eagle
West Union wv
Lawrence Gaskins
West Union,Wv
www.Picturetrail.com/GmcLawrence
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| Re: [GMCnet] Halo Fire Extinguisher [message #220080 is a reply to message #220013] |
Tue, 27 August 2013 06:59 |
Steven Ferguson
Messages: 3447
Registered: May 2006
Karma: 0
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Senior Member |
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Kelvin, the Halon is used in the refer compartment. When the slug melts,
it does a big dump of Halon removing all the oxygen from the source of
combustion. The engine and genset compartments use AFFF (Aqueous Film
Forming Foam) and not only suffocates the fire, but cools at the same time
and suppresses reflash. That unit Jim B markets is made to instantly put
out a 12" blanket of foam in about a 10' diameter circle. AFFF works
better than anything on fuel fires. It's the same stuff you see them
applying to runways when there is a plane coming in with no landing gear.
It is also the primary agent used for fire suppression in the US Navy.
Since the shipping regs on the stuff has changed, it is becoming cheaper
and cheaper to purchase and ship. It is also harmless (you can even digest
it with no side effects) and won't destroy everything it touches like those
darn dry chem extinguishers. Jim B. is the only one marketing a kit. I
have one mounted in the eng comp of my SOB.
Steve F
On Mon, Aug 26, 2013 at 2:46 PM, Kelvin Dietz <kelvin@datsuns.com> wrote:
> On 8/26/2013 2:35 PM, Joe Weir wrote:
> >
> > James Hupy wrote on Mon, 26 August 2013 15:01
> >> Call Jim Bounds for best shipping info, send it to him for refill or
> >> exchange. Make sure that it didn't discharge. If it did, it paid for
> itself
> >> many times over.
> >> Jim Hupy
> >
> > Jim has a nice selection of automatic activated halon bottles, something
> for every corner of the coach. For the price they are a no brainer.
> >
>
> A buddy of mine is in the fire extinguisher business.
> He wondered if anyone has actually had occasion to USE one of the engine
> compartment extinguishers...
>
> He's concerned that the halon would have a hard time putting out the
> fire if the coach was going down the road. Not a problem if you were
> sitting still... but moving?
>
> Anyone willing to pipe in? JimB, perhaps?
>
> Kelvin
> '73 23' with one of JimB's engine compartment extinguishers installed..
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
--
Take care,
Steve
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| Re: [GMCnet] Halo Fire Extinguisher [message #220180 is a reply to message #220080] |
Wed, 28 August 2013 08:56 |
 |
USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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Senior Member |
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G'day,
Halon is what the USAF used under jet engine cowlings to put out engine fires. Unlike prop engines they are "pretty much" sealed.
II have two of JimB's hand held AFFF units in Double Trouble.
Regards,
Rob M.
-----Original Message-----
From: Steven Ferguson
Kelvin, the Halon is used in the refer compartment. When the slug melts,
it does a big dump of Halon removing all the oxygen from the source of
combustion. The engine and genset compartments use AFFF (Aqueous Film
Forming Foam) and not only suffocates the fire, but cools at the same time
and suppresses reflash. That unit Jim B markets is made to instantly put
out a 12" blanket of foam in about a 10' diameter circle. AFFF works
better than anything on fuel fires. It's the same stuff you see them
applying to runways when there is a plane coming in with no landing gear.
It is also the primary agent used for fire suppression in the US Navy.
Since the shipping regs on the stuff has changed, it is becoming cheaper
and cheaper to purchase and ship. It is also harmless (you can even digest
it with no side effects) and won't destroy everything it touches like those
darn dry chem extinguishers. Jim B. is the only one marketing a kit. I
have one mounted in the eng comp of my SOB.
Steve F
On Mon, Aug 26, 2013 at 2:46 PM, Kelvin Dietz <kelvin@datsuns.com> wrote:
> On 8/26/2013 2:35 PM, Joe Weir wrote:
> >
> > James Hupy wrote on Mon, 26 August 2013 15:01
> >> Call Jim Bounds for best shipping info, send it to him for refill or
> >> exchange. Make sure that it didn't discharge. If it did, it paid for
> itself
> >> many times over.
> >> Jim Hupy
> >
> > Jim has a nice selection of automatic activated halon bottles, something
> for every corner of the coach. For the price they are a no brainer.
> >
>
> A buddy of mine is in the fire extinguisher business.
> He wondered if anyone has actually had occasion to USE one of the engine
> compartment extinguishers...
>
> He's concerned that the halon would have a hard time putting out the
> fire if the coach was going down the road. Not a problem if you were
> sitting still... but moving?
>
> Anyone willing to pipe in? JimB, perhaps?
>
> Kelvin
> '73 23' with one of JimB's engine compartment extinguishers installed..
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
--
Take care,
Steve
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Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
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| Re: [GMCnet] Halo Fire Extinguisher [message #220297 is a reply to message #220180] |
Thu, 29 August 2013 07:26 |
Steven Ferguson
Messages: 3447
Registered: May 2006
Karma: 0
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Senior Member |
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All ships in the USN used massive halon systems installed in the big
Gaylord hoods over the stoves & ovens. The big problem with Halon is
because of the way it breaks up the fire triangle, it is very hazardous to
humans. When those alarms go off, the personnel in the area had only
seconds to evacuate.
AFFF is the finest fire suppression agent out there and I have 24 bottles
in the house, garage, shop, and all the vehicles. So inexpensive for what
it does.
Steve
On Wed, Aug 28, 2013 at 6:56 AM, Rob Mueller <robmueller@iinet.net.au>wrote:
> G'day,
>
> Halon is what the USAF used under jet engine cowlings to put out engine
> fires. Unlike prop engines they are "pretty much" sealed.
>
> II have two of JimB's hand held AFFF units in Double Trouble.
>
> Regards,
> Rob M.
>
> -----Original Message-----
> From: Steven Ferguson
>
> Kelvin, the Halon is used in the refer compartment. When the slug melts,
> it does a big dump of Halon removing all the oxygen from the source of
> combustion. The engine and genset compartments use AFFF (Aqueous Film
> Forming Foam) and not only suffocates the fire, but cools at the same time
> and suppresses reflash. That unit Jim B markets is made to instantly put
> out a 12" blanket of foam in about a 10' diameter circle. AFFF works
> better than anything on fuel fires. It's the same stuff you see them
> applying to runways when there is a plane coming in with no landing gear.
> It is also the primary agent used for fire suppression in the US Navy.
> Since the shipping regs on the stuff has changed, it is becoming cheaper
> and cheaper to purchase and ship. It is also harmless (you can even digest
> it with no side effects) and won't destroy everything it touches like those
> darn dry chem extinguishers. Jim B. is the only one marketing a kit. I
> have one mounted in the eng comp of my SOB.
> Steve F
>
>
> On Mon, Aug 26, 2013 at 2:46 PM, Kelvin Dietz <kelvin@datsuns.com> wrote:
>
> > On 8/26/2013 2:35 PM, Joe Weir wrote:
> > >
> > > James Hupy wrote on Mon, 26 August 2013 15:01
> > >> Call Jim Bounds for best shipping info, send it to him for refill or
> > >> exchange. Make sure that it didn't discharge. If it did, it paid for
> > itself
> > >> many times over.
> > >> Jim Hupy
> > >
> > > Jim has a nice selection of automatic activated halon bottles,
> something
> > for every corner of the coach. For the price they are a no brainer.
> > >
> >
> > A buddy of mine is in the fire extinguisher business.
> > He wondered if anyone has actually had occasion to USE one of the engine
> > compartment extinguishers...
> >
> > He's concerned that the halon would have a hard time putting out the
> > fire if the coach was going down the road. Not a problem if you were
> > sitting still... but moving?
> >
> > Anyone willing to pipe in? JimB, perhaps?
> >
> > Kelvin
> > '73 23' with one of JimB's engine compartment extinguishers installed..
> > _______________________________________________
> > GMCnet mailing list
> > Unsubscribe or Change List Options:
> > http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
> >
>
>
>
> --
> Take care,
> Steve
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
--
Take care,
Steve
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| Re: [GMCnet] Halo Fire Extinguisher [message #220384 is a reply to message #220297] |
Thu, 29 August 2013 18:06 |
 |
Matt Colie
Messages: 8547
Registered: March 2007
Location: S.E. Michigan
Karma: 7
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Senior Member |
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| Steven Ferguson wrote on Thu, 29 August 2013 08:26 |
All ships in the USN used massive halon systems installed in the big Gaylord hoods over the stoves & ovens. The big problem with Halon is because of the way it breaks up the fire triangle, it is very hazardous to humans. When those alarms go off, the personnel in the area had only seconds to evacuate.
AFFF is the finest fire suppression agent out there and I have 24 bottles in the house, garage, shop, and all the vehicles. So inexpensive for what it does.
Steve
--
Take care,
Steve
|
Steve,
I fear you were mislead.
While any halogenated hydrocarbon can disassociate with heat, the two common in fire fighting equipment are do not generate toxic residue when exposed to normal fire temperatures - like those created in a galley situation. The reason the navy had the EESO (Emergency Evacuate Spaces Order) (I'm not sure if that is current use) is simply because the navy was still using the protocol from CO2 days and flooding spaces as CO2 required.
The place we did have to be careful was in engine test labs with incandescent exhaust manifolds and turbochargers. Those will cause the halons to break into toxic components. In Dynoland, a fire detection or manual trip would stop all tests and shut down all ventilation. Then, If a halon surpression system had deployed, all the other test cells would be ventilated at high for three minutes and the subject cell would be inspected (if possible) from out side to determine if any fire or ember remained. If none, then personnel could reenter the test cell with a protocol that would not allow a technician to be alone.
We rarely had to go to the next step that required calling in people with breathing apparatus.
To date, I have now see three failures of AFFF, one was a direct result of the container being frozen. This could be a real issue in a coach. The other two were local FAR crews using non-alcohol resistant AFFF on a motorfuel fire. Unfortunately, AR-AFFF is still more expensive. Fortunately for both of those they were also vary well trained in handling fog systems.
In my own coach, I have a halon bottle in the main engine bay and have tried to keep one with the APU, but that has been less of a success. It was once found deployed with circumstances unknown, and then again in the heat of a very hot weekend, it put out the APU. You can just imagine what I was thinking when, ¡BANG! and the APU stopped fast - along with the A/C and fans. It took some investigation to figure out that the surpression system had just take the temperature (it was that hot) as a sign of trouble and put out the fire in the APU cylinders.
I still have to get that back for a recharge.
Matt
Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit
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| Re: [GMCnet] Halo Fire Extinguisher [message #220423 is a reply to message #220384] |
Thu, 29 August 2013 21:42 |
Jim Galbavy
Messages: 1443
Registered: August 2007
Karma: 7
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Senior Member |
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Since about WW-II to the first generation of the Abrams M-1 tank, American military tracked weapons systems all used CO2. Starting with the second generation Abrams to the present they all now use Halon.
With Fire Fight Product's foam in freezing conditions all that is necessary is to remove the device until temperatures rise. The Foam will never freeze solid, but will become like a sloppy. With the engine running at temperature the foam should deploy. ..but not leaving anything to chance is why I now have two SS-50s in the engine compartment. One Halon and one foam
As for Matt's device that deployed, what was the temperature reading on the sticker? Sounds like the device did it's job.
As for the original question, Lawrence has already made contact with JimB.
jim galbavy
'73 x-CL ANNIE
Lake Mary, FL
[Updated on: Fri, 30 August 2013 07:28] Report message to a moderator |
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| Re: [GMCnet] Halo Fire Extinguisher [message #220489 is a reply to message #220384] |
Fri, 30 August 2013 08:47 |
Steven Ferguson
Messages: 3447
Registered: May 2006
Karma: 0
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Senior Member |
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Matt,
Personnel were evacuated because of the lack of oxygen when the Halon
deployed, not because of toxins.
Steve F.
On Thu, Aug 29, 2013 at 4:06 PM, Matt Colie <matt7323tze@gmail.com> wrote:
>
>
> Steven Ferguson wrote on Thu, 29 August 2013 08:26
> > All ships in the USN used massive halon systems installed in the big
> Gaylord hoods over the stoves & ovens. The big problem with Halon is
> because of the way it breaks up the fire triangle, it is very hazardous to
> humans. When those alarms go off, the personnel in the area had only
> seconds to evacuate.
> > AFFF is the finest fire suppression agent out there and I have 24
> bottles in the house, garage, shop, and all the vehicles. So inexpensive
> for what it does.
> > Steve
> > --
> > Take care,
> > Steve
>
> Steve,
>
> I fear you were mislead.
> While any halogenated hydrocarbon can disassociate with heat, the two
> common in fire fighting equipment are do not generate toxic residue when
> exposed to normal fire temperatures - like those created in a galley
> situation. The reason the navy had the EESO (Emergency Evacuate Spaces
> Order) (I'm not sure if that is current use) is simply because the navy was
> still using the protocol from CO2 days and flooding spaces as CO2 required.
>
> The place we did have to be careful was in engine test labs with
> incandescent exhaust manifolds and turbochargers. Those will cause the
> halons to break into toxic components. In Dynoland, a fire detection or
> manual trip would stop all tests and shut down all ventilation. Then, If a
> halon surpression system had deployed, all the other test cells would be
> ventilated at high for three minutes and the subject cell would be
> inspected (if possible) from out side to determine if any fire or ember
> remained. If none, then personnel could reenter the test cell with a
> protocol that would not allow a technician to be alone.
>
> We rarely had to go to the next step that required calling in people with
> breathing apparatus.
>
> To date, I have now see three failures of AFFF, one was a direct result of
> the container being frozen. This could be a real issue in a coach. The
> other two were local FAR crews using non-alcohol resistant AFFF on a
> motorfuel fire. Unfortunately, AR-AFFF is still more expensive.
> Fortunately for both of those they were also vary well trained in handling
> fog systems.
>
> In my own coach, I have a halon bottle in the main engine bay and have
> tried to keep one with the APU, but that has been less of a success. It
> was once found deployed with circumstances unknown, and then again in the
> heat of a very hot weekend, it put out the APU. You can just imagine what
> I was thinking when, ¡BANG! and the APU stopped fast - along with the A/C
> and fans. It took some investigation to figure out that the surpression
> system had just take the temperature (it was that hot) as a sign of trouble
> and put out the fire in the APU cylinders.
>
> I still have to get that back for a recharge.
>
> Matt
> --
> Matt & Mary Colie
> '73 Glacier 23 Chaumière (say show-me-air)
> Now with 4 working Rear Brakes
> SE Michigan - Twixt A2 and Detroit
> _______________________________________________
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--
Take care,
Steve
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| Re: [GMCnet] Halo Fire Extinguisher [message #220521 is a reply to message #220489] |
Fri, 30 August 2013 11:36 |
jhbridges
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
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Senior Member |
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When last I had a halon system installed (been many years) the provider said they sized them to produce an 8% concentration in the space, 6% being sufficient to squelch the fire. It is heavier than air, and fire just 'doesn't work' in it. IUf you huff a mouthful, it is the opposite of helium... deepens the voice. In isn't toxic, but >will< asphyxiate if it displaces the oxygen in an enclosed space.
--johnny
--------------------------------------------
On Fri, 8/30/13, Steven Ferguson <botiemad11@gmail.com> wrote:
Subject: Re: [GMCnet] Halo Fire Extinguisher
To: gmclist@temp.gmcnet.org
Date: Friday, August 30, 2013, 1:47 PM
Matt,
Personnel were evacuated because of the lack of oxygen when
the Halon
deployed, not because of toxins.
Steve F.
On Thu, Aug 29, 2013 at 4:06 PM, Matt Colie <matt7323tze@gmail.com>
wrote:
>
>
> Steven Ferguson wrote on Thu, 29 August 2013 08:26
> > All ships in the USN used massive halon systems
installed in the big
> Gaylord hoods over the stoves & ovens. The
big problem with Halon is
> because of the way it breaks up the fire triangle, it
is very hazardous to
> humans. When those alarms go off, the personnel
in the area had only
> seconds to evacuate.
> > AFFF is the finest fire suppression agent
out there and I have 24
> bottles in the house, garage, shop, and all the
vehicles. So inexpensive
> for what it does.
> > Steve
> > --
> > Take care,
> > Steve
>
> Steve,
>
> I fear you were mislead.
> While any halogenated hydrocarbon can disassociate with
heat, the two
> common in fire fighting equipment are do not generate
toxic residue when
> exposed to normal fire temperatures - like those
created in a galley
> situation. The reason the navy had the EESO
(Emergency Evacuate Spaces
> Order) (I'm not sure if that is current use) is simply
because the navy was
> still using the protocol from CO2 days and flooding
spaces as CO2 required.
>
> The place we did have to be careful was in engine test
labs with
> incandescent exhaust manifolds and turbochargers.
Those will cause the
> halons to break into toxic components. In
Dynoland, a fire detection or
> manual trip would stop all tests and shut down all
ventilation. Then, If a
> halon surpression system had deployed, all the other
test cells would be
> ventilated at high for three minutes and the subject
cell would be
> inspected (if possible) from out side to determine if
any fire or ember
> remained. If none, then personnel could reenter
the test cell with a
> protocol that would not allow a technician to be
alone.
>
> We rarely had to go to the next step that required
calling in people with
> breathing apparatus.
>
> To date, I have now see three failures of AFFF, one was
a direct result of
> the container being frozen. This could be a real
issue in a coach. The
> other two were local FAR crews using non-alcohol
resistant AFFF on a
> motorfuel fire. Unfortunately, AR-AFFF is still
more expensive.
> Fortunately for both of those they were also vary
well trained in handling
> fog systems.
>
> In my own coach, I have a halon bottle in the main
engine bay and have
> tried to keep one with the APU, but that has been less
of a success. It
> was once found deployed with circumstances unknown, and
then again in the
> heat of a very hot weekend, it put out the APU.
You can just imagine what
> I was thinking when, ¡BANG! and the APU stopped fast -
along with the A/C
> and fans. It took some investigation to figure
out that the surpression
> system had just take the temperature (it was that hot)
as a sign of trouble
> and put out the fire in the APU cylinders.
>
> I still have to get that back for a recharge.
>
> Matt
> --
> Matt & Mary Colie
> '73 Glacier 23 Chaumière (say show-me-air)
> Now with 4 working Rear Brakes
> SE Michigan - Twixt A2 and Detroit
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
--
Take care,
Steve
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Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
I forgive them all, save those who hurt the dogs. They must answer to me in hell
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