I can't imagine that computer equipment in a 12x12 room can be so costly as to justify a fire system that will not protect the building if it fails on it's one shot or justifies the additional cost of back-up equipment (i.e.: multiple additional bottles) to provide for a second try just to mitigate against a myth about accidental discharge being a common problem in 12 x 12 computer rooms. Heads that fail by themselves usually leak rather than discharge and the clumsy maintenance guy and his ladder can be mitigated against by using a single (12 x 12 room) concealed head. Rather, put in the wet head, spend the extra twenty bucks to make it concealed and use the thousands saved for off-site records back-up (records being the actual valuable item, not the hardware--that is unless you can now get a thermo-nuclear powered, cryogenically cooled, Cray Super Computer in a 12 x12 room these days).
On Thu, Feb 11, 2010 at 9:20 AM, <[email protected]> wrote: > > That does help. Thanks. 903.1.1 That states specifically that the "water > based sprinklers" can be eliminated if an approved alternative method( gas > system in this case) is used and approved by the AHJ. Some AHJ's really get > hung up on a specific section and will not see past a single paragraph no > matter what else you show them in the book. > > Thank you > > Aaron Johnson > Northwest Consulting, Inc. > formally in the Northwest now based in Palm Springs, CA > > > > > > > -----Original Message----- > From: John Drucker <[email protected]> > To: [email protected] > Sent: Thu, Feb 11, 2010 7:31 am > Subject: RE: Gas systems replacing sprinklers > > > 2006 IBC/IFC > 901.2 Fire protection systems. Fire protection systems shall be > nstalled, repaired, operated and maintained in accordance with this > ode and the International Fire Code. Any fire protection system for > hich an exception or reduction to the provisions of this code has been > ranted shall be considered to be a required system. > [F] 903.1.1 Alternative protection. Alternative automatic > ire-extinguishing systems complying with Section 904 shall be permitted > n lieu of automatic sprinkler protection > here recognized by the applicable standard and approved by the fire > ode official. > TABLE 601 > IRE-RESISTANCE RATING REQUIREMENTS FOR BUILDING ELEMENTS (hours) > . An approved automatic sprinkler system in accordance with Section > 03.3.1.1 shall be allowed to be substituted for 1-hour > ire-resistance-rated construction, provided > uch system is not otherwise required by other provisions of the code or > sed for an allowable area increase in accordance with Section 506.3 or > n allowable > eight increase in accordance with Section 504.2. The 1-hour > ubstitution for the fire resistance of exterior walls shall not be > ermitted. > Hope that helps, > John Drucker Jr CET > ire Protection Subcode Official > ire/Building/Electrical Inspector > orough of Red Bank, NJ > -----Original Message----- > rom: [email protected] > mailto:[email protected]] On Behalf Of Michael > . Ricks > ent: Thursday, February 11, 2010 9:38 AM > o: [email protected] > ubject: Gas systems replacing sprinklers > Does anyone know if NFPA specifically states that a gas fire suppression > ystem can replace a fire sprinkler in a room, or rooms? I scanned and > earched and the only section it addresses that issue is in marine > ystems 25.1.5, partial systems. Section 1.5 possibly covers it but > onvincing a fire marshal of that could be a bit tough. Thanks. > > aron Johnson > orthwest Consulting, Inc. > > > Aaron: > > NFPA 13 2002 edition A.8.1.1 states: "This standard contemplates full > prinkler protection for all areas..Other NFPA standard that mandate > prinkler installation might not require sprinklers in certain areas. > he requirements of this standard should be used insofar as they are > pplicable. > he AHJ should be consulted in each case. A building is considered > prinklered throughout when protected in accordance with the > equirements of this standard." > > It seems to me that you need to request a modification based on > lternative materials and methods (see IFC 104.8 and 104.9). In short, > ou will need to show the AHJ why there are practical difficulties > nvolved in providing sprinklers in the area in question and show him > hat the proposed system provides an equivalent level of protection. If > were presenting it I would be ready to offer a minimum design area to > 000 sq. ft. and maybe a rated enclosure around the unsprinklered area. > think most AHJ's would go for that. > > > Michael Ricks > Katco Fire Sprinkler Design > P.O. Box 607 > 555 South 100 East > Salem, UT 84653 > 801-423-3096 Cell: 801-380-4651 > [email protected] > > > _______________________________________________ > prinklerforum mailing list > [email protected] > ttp://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > For Technical Assistance, send an email to: [email protected] > To Unsubscribe, send an email > o:[email protected] > Put the word unsubscribe in the subject field) > > ONFIDENTIAL AND PROPRIETARY: > his email message is intended only for the use of the individual or entity to > hich it is addressed and may contain information that is privileged and > onfidential, nor is it, unless specifically stated, intended to be relied upon > y any person or persons other than the individual or entity named above and no > arranties or representations are made or intended to persons or entities not > amed above. If the reader is not the intended recipient, you are hereby > otified that any dissemination, distribution or copying of this communication > s strictly prohibited. If you have received this communication in error, > lease notify us immediately by telephone, return this message to the address > bove and delete all copies. Thank you. > _______________________________________________ > prinklerforum mailing list > [email protected] > ttp://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) > -- Ron Greenman InstrucRon Greenman, CET, FPE Instructor Fire Protection Engineering Bates Technical College Tacoma, WA Member: SFPE, ASCET, NFPA, AFSA, NFSA AFAA, NIBS, WSAFM, WFC _______________________________________________ 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)
