So it looks like NFPA 101 is permissive if it's effective but the IFC 904 requires specific AHJ approval. Of course the AHJ in 101 would have to agree it's effective so I guess it's not given really. Also note the real catch in 904 and you might have a problem if say for example you take the area increase for sprinklers and use a clean agent in the sever room..."Automatic fire-extinguishing systems shall not be considered alternatives for the purposes of exceptions or reductions allowed by other requirements of this code."
Chris Cahill, P.E. Fire Protection Engineer Sentry Fire Protection, Inc. 763-658-4483 763-658-4921 fax Email: [email protected] Mail: P.O. Box 69 Waverly, MN 55390 Location: 4439 Hwy 12 SW Waverly, MN 55390 -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Autry, David Sent: Tuesday, February 09, 2010 3:17 PM To: [email protected] Subject: RE: Gas systems replacing sprinklers Look at NFPA 101 (2000, edition) 9.7.3.1 In any occupancy where the character of the potential fuel for fire is such that extinguishment or control of fire is effectively accomplished by a type of automatic extinguishing system other than an automatic sprinkler system, such as water mist, carbon dioxide, dry chemical, foam, Halon 1301, water spray, or a standard extinguishing of another type, that system shall be permitted to be installed in lieu of an automatic sprinkler system. Such systems shall be installed, inspected, and maintained in accordance with appropriate NFPA standards. David Autry Plans Examiner Nebraska State Fire Marshal's Office 246 S. 14th Street Lincoln, NE 68508 402-471-9659 402-471-3118 fax www.sfm.ne.gov ** Note new email address: [email protected] -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of [email protected] Sent: Tuesday, February 09, 2010 12:35 PM To: [email protected] Subject: Gas systems replacing sprinklers Does anyone know if NFPA specifically states that a gas fire suppression system can replace a fire sprinkler in a room, or rooms? I scanned and searched and the only section it addresses that issue is in marine systems 25.1.5, partial systems. Section 1.5 possibly covers it but convincing a fire marshall of that could be a bit tough. Thanks. Aaron Johnson Northwest Consulting, Inc. _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field)
