Roland, If I understand you correctly, in my particular situation, I have a school of light hazard occupancy with a small mechanical room in the basement (walls all around). I need to size a tank for this project so I could size the water supply for a 30 minute duration instead of the 60 minute required for OH? Thanks, Dewayne
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Roland Huggins Sent: Thursday, January 11, 2007 2:04 PM To: [email protected] Subject: Re: water supply duration It depends if the 800 sf is separated by a wall (not rated but just a wall). If it is, the size of your remote area is based on the lower overall building occupancy. If no wall, then the size is based on the higher hazard occupancy. See 13:A.;11.2.3.2.1.1. Your hose demand, though not stated in the Annex example, is understood to be directly tied to that. Roland On Jan 10, 2007, at 1:30 PM, Dewayne Martinez wrote: > What would the appropriate water supply duration be for a building > overall light hazard occupancy but with a storage room of > approximately 800 sq ft in it. I need to size a water storage tank > and 30 vs.. > 60 min > makes a difference. I saw the hose demand exception in NFPA for rooms > less than 400 sq ft. but this did not address the duration. I tried > to access the archives but they seem to be down. Any help and > possibly a NFPA reference # would be appreciated. > Thanks > Dewayne > > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum > _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum
