FM200 residue is mostly all of the gunk and grease in the pipes left over from their manufacture and threaded-metal-fitting assembly.
John > On 14 Dec 2018, at 4:31 am, Bevan Slattery <[email protected]> wrote: > > It’s pretty much all been said. > > Halon (long gone). Reaction sucks oxygen out of air. > FM200 (safe but being phased out). Heard it can leave a residue despite the > brochure saying not. > Inergen more common (and others like it). Fundamentally mostly nitrogen > that drops oxygen below 15% and drops temperature. These are two components > of a fire (heat, fuel and oxygen). People can operate comfortably below 15% > oxygen. In fact at 10% you can still function more than enough to pick up > your gear and leave the room. > > I did quite a bit of research on reduced oxygen environments (hypoxic) which > is used on (Firepass etc.) http://www.firepass.com/oxygen-reduction-fire > > Obviously dry pipe is used a lot. The issues with gas suppression today are > more around noise (and vibration) and temp drop and they relate to spinning > disks and circuit boards, more than people. > > The issues around dry pipe is, well when it goes off, it’s not very dry and > water/equipment certainly doesn’t mix. > > Cheers > > B > > From: AusNOG <[email protected]> on behalf of Paul Wilkins > <[email protected]> > Sent: Wednesday, December 12, 2018 3:53 pm > To: [email protected] > 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 totwo techs being found > dead working on a fire suppression system in Antarctica, 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 > [email protected] > http://lists.ausnog.net/mailman/listinfo/ausnog
_______________________________________________ AusNOG mailing list [email protected] http://lists.ausnog.net/mailman/listinfo/ausnog
