You must flow the system demand at time of design (14:6.3.1.3 2008 ed). The flow test must occur at the hyd most remote outlets (14:6.3.1.2). You only need to do one flow test per zone (14:6.3.1.1). Your two sections do not necessarily mean two zones.
Note also, if this is for Joint Commission, you will need to go back to the old codes. To my knowledge, they are enforcing NFPA 101 2000 edition...this means the 1998 edition of NFPA 14 is applicable. Duane Johnson, PE Program Manager Division of the Fire Marshal (Support Contractor) Office of Research Services National Institutes of Health 301-496-0487 "Protecting Science - One Sprinkler at a Time" -----Original Message----- From: Todd Williams [mailto:[email protected]] Sent: Thursday, December 29, 2011 9:15 AM To: [email protected] Subject: NFPA 25 standpipe test I am working with a hospital with a total of 9 standpipes. There are standpipes that are both pre and post 1993. The original building is partially sprinklered and the new section is fully sprinklered. 1. Is the intent of NFPA 25 that multiple standpipes be flowed simultaneously to meet the 1250 gpm demand? 2. Should the two sections of the hospital be flow independent of each other? 3. If yes to 1 and 2, could the new section be flowed as a fully sprinklered building (thus 1000 gpm) as opposed to 1250? 4. How should i handle pipe schedule standpipes, if any exist? I haven't had to deal with 5 year standpipe tests before. Todd G. Williams, PE Fire Protection Design/Consulting Stonington, CT 860.535.2080 www.fpdc.com _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum) _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum
