It's been a while (~2003) since I read the inergen manual that came with the DC I was paid to baby sit, but I recall they add CO2 to the gas mix that is discharged as it forces the Human lung to work harder and cope with the lower oxygen levels.
> On 13 Dec 2018, at 3:34 pm, Matt Perkins <m...@spectrum.com.au> wrote: > > > Halon has been banned in Australia for about 20 years and it’s not that > deadly as it’s made out to be I had a halon extinguisher in the cockpit of my > plane which would not be ok if it were poison. Most DC in .au use FM200 or > inergen. > > I’m thinking they used CO2 in the remote station as it requires less gas and > is cheaper to transport. Inergen requires massive amounts of gas almost the > volume of the protected area which would not be practical in a remote area. > Co2 is also often used in high power environments where you can get a burning > metal fire. > > Don’t stir up a fuss here your safe in your DC if you have payed attention to > your induction and leave when your told. > > There is also an interesting suppression system that lowers the oxygen in the > room so combustion can not be supported. It’s interesting because humans > inhabit the room while the oxygen is lowered. Seems that a fire needs more > oxygen then a human! I have seen a demo with people attempting to light > matches inside that environement which extinguish almost instantly. > > > Matt > > > -- > /* Matt Perkins > Direct 1300 137 379 Spectrum Networks Ptd. Ltd. > Office 1300 133 299 m...@spectrum.com.au > <mailto:m...@spectrum.com.au> > Fax 1300 133 255 Level 6, 350 George Street Sydney 2000 > SIP 1300137...@sip.spectrum.com.au > <mailto:1300137...@sip.spectrum.com.au> > Google Talk mattaperk...@gmail.com <mailto:mattaperk...@gmail.com> > PGP/GNUPG Public Key can be found at http://pgp.mit.edu > <http://pgp.mit.edu/> > */ > > On 13 Dec 2018, at 11:29 am, Paul Wilkins <paulwilkins...@gmail.com > <mailto:paulwilkins...@gmail.com>> wrote: > >> See I would expect there would be an Australian Standard for Data Centre >> Fire Suppression >> Systems, with regular inspections that were certified and the certificate >> on display in the data centre. >> >> And as I haven't noticed this, and Chris hasn't noticed this, I would guess >> it's not a gap in places I've worked, but there's a more widespread lack of >> governance around inspections. >> >> Furthermore, the fire suppressant, may leak. Halon is poisonous and can >> impair your judgement. So there ought to be an alarm that detects if Halon >> is present. It's not good enough to rely on the fire alarm to warn you of >> the presence of fire suppressant, because you could have a leak without a >> fire. >> >> One would have to assume the people in Antarctica knew what they were doing, >> and yet, something went wrong and now they're dead. >> >> Kind regards >> >> Paul Wilkins >> >> >> On Thu, 13 Dec 2018 at 11:00, Chris Ford <chris.f...@inaboxgroup.com.au >> <mailto:chris.f...@inaboxgroup.com.au>> wrote: >> As a university cadet working for IBM in the late 80s I remember getting >> inducted into the Westpac data centres and getting a long explanation of >> what to do when the halon system went off – where the breathing gear was, >> where the exits were, to basically just drop everything and run. >> >> >> >> Have been inducted into a few DCs in the last 3 years and can’t remember >> that being part of the induction at all – although given I already knew it I >> may have just glossed over that part. >> >> >> >> -- >> >> Chris Ford >> >> Chief Technology Officer >> >> >> >> INABOX GROUP >> >> m 0401 988 844 e chris.f...@inaboxgroup.com.au >> <mailto:chris.f...@inaboxgroup.com.au> >> t 02 8275 6871 w www.inaboxgroup.com.au <http://www.inaboxgroup.com.au/> >> >> >> From: AusNOG <ausnog-boun...@lists.ausnog.net >> <mailto:ausnog-boun...@lists.ausnog.net>> On Behalf Of Paul Wilkins >> Sent: Thursday, 13 December 2018 10:53 AM >> To: AusNOG@lists.ausnog.net <mailto:AusNOG@lists.ausnog.net> >> Subject: [AusNOG] [AUSNog] : Re Data Centre Fire Suppression Safety >> >> >> >> Every data centre has a fire suppression system. We're not used to thinking >> of this as a hazardous environment, but consequent to two techs being found >> dead working on a fire suppression system in Antarctica >> <https://www.theguardian.com/world/2018/dec/12/antarctica-two-technicians-dead-mcmurdo-station-ross-island>, >> I find myself wondering yet again, why there aren't more stringent controls >> around the fire suppression systems in data centres: viz - when you enter a >> data centre, how confident can you be you're not going to be quietly >> asphyxiated? >> >> Kind regards >> >> Paul Wilkins >> >> _______________________________________________ >> AusNOG mailing list >> AusNOG@lists.ausnog.net <mailto:AusNOG@lists.ausnog.net> >> http://lists.ausnog.net/mailman/listinfo/ausnog >> <http://lists.ausnog.net/mailman/listinfo/ausnog> >> _______________________________________________ >> AusNOG mailing list >> AusNOG@lists.ausnog.net <mailto:AusNOG@lists.ausnog.net> >> http://lists.ausnog.net/mailman/listinfo/ausnog >> <http://lists.ausnog.net/mailman/listinfo/ausnog> > _______________________________________________ > AusNOG mailing list > AusNOG@lists.ausnog.net > http://lists.ausnog.net/mailman/listinfo/ausnog
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