Chris, When I worked in the Kansas City area in the ‘80’s we installed sprinklers in hundreds of thousands of square feet of limestone caves. I was not aware that hazardous materials were permitted to be stored underground. At the time, most was restricted to philatelic, wine, paper records and not much more than Class IV products.
The problem I see right off the bat, is secondary containment of the sprinkler water runoff. There are super fast deluge systems but not sure deflagration hazards are a good match for subterranian storage opportunities. my two cents Bob Bob Caputo, CFPS *President* *American Fire Sprinkler Association* p: 214-349-5965 ext124 w: firesprinkler.org <https://www.facebook.com/firesprinkler.org/> <https://twitter.com/afsa/status/1039528345367732224> <https://www.linkedin.com/company/american-fire-sprinkler-association-afsa-/> <https://www.instagram.com/firesprinklerorg/> *Train a safer, more efficient workforce.* By enrolling your employees in the AFSA Apprenticeship Training Series for Sprinkler Fitters <https://www.firesprinkler.org/WWW/Education/Apprentice_Training/WWW/Education/Apprenticeship_Training.aspx?hkey=e88ef09e-d74c-407f-abcd-995aff866149>, you will reap the benefits of a qualified, professional installation crew. Well-trained employees will work smarter, increasing your company's productivity and, in turn, its profits. Learn more <https://www.firesprinkler.org/WWW/Education/Apprentice_Training/WWW/Education/Apprenticeship_Training.aspx?hkey=e88ef09e-d74c-407f-abcd-995aff866149> . On Fri, Apr 5, 2024 at 3:05 PM Chris Dorn <chris.d...@dornfireprotection.com> wrote: > Trying to help a friend of a friend. Has anyone ever provided any type of > fire suppression system for underground storage of ANFO (Ammoniun Nitrate > and fuel oil mixture)? The area in question is in a limestone mine > underground. The space is pretty large and has 30’ ceilings so I’m guessing > that chemical suppression is not going to be an option. I tend to believe > that sprinklers may not be the route to go. Water will apparently render > the ANFO inert but in case of a fire I’m not sure that the sprinklers could > operate fast enough to provide any real protection. Additionally, the water > supply is inadequate for almost any type of sprinkler system anyway. > > > > I’m not really finding much in NFPA except Annex C in NFPA 495 which > refers to separation distances. I did find a reference to NFPA 490 2002 > Edition but cannot find a current code so I’m guessing it was folded into > 495 at some point. > > > > Any direction at all would be appreciated to help me in my research. > > > > Chris Dorn > > Dorn Fire Protection LLC > > > > _________________________________________________________ > SprinklerForum mailing list: > https://lists.firesprinkler.org/list/sprinklerforum.lists.firesprinkler.org > To unsubscribe send an email to > sprinklerforum-le...@lists.firesprinkler.org
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