The old method was similar to the current one back in pipe schedule days, or at least the language was. If it was under 500 gallons then it didn't matter time wise. If it was 500 to 750 gallons and it couldn't make it in 60 seconds then you had to add a QOC, and then the time didn't matter. If it was over 750 gallons you needed a QOC regardless and the time didn't matter. In short it was all about time, but determined by the need or lack of need of a QOC. The sixty second timing as baseline crept in over time, being the de facto criterion with AHJs, until it became required in the 2007 (if I remember correctly) edition. Curiously that rule change/definition coincided with the introduction of Tyco's expensive water delivery time software.
On Tue, Jun 11, 2013 at 11:52 AM, G. Tim Stone <[email protected]> wrote: > Per NFPA 13 the successful Dry System performance test requires water to > the > inspectors test in 60 Seconds for brand new systems. > I don't believe there is a time limit according to NFPA 25. > > Regards, > G. Tim Stone > > G. Tim Stone Consulting, LLC > NICET Level III Engineering Technician > Fire Protection Sprinkler Design > and Consulting Services > > 117 Old Stage Rd. - Essex Jct., VT. 05452 > CELL: (802) 373-0638 TEL: (802) 434-2968 Fax: (802) 434-4343 > [email protected] > > > -----Original Message----- > > From: [email protected] > > [mailto:[email protected]] On Behalf Of Jay > > Stough > > Sent: Tuesday, June 11, 2013 2:24 PM > > To: Sprinkler -Forum > > Subject: Old Dry Systems > > > > I have a customer that has a dry system that was installed sometime in > the > > 50's or early 60's. We are inspecting this system and notice that the > trip > > times are well over a minute, almost a minute and a half. Now a days > that > > would be no good; but how was that handled back then? It is a pipe > > schedule system, so was the volume rule in affect at that time? > > > > > > Jay Stough > > _______________________________________________ > > Sprinklerforum mailing list > > [email protected] > > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum- > > firesprinkler.org > > _______________________________________________ > Sprinklerforum mailing list > [email protected] > > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org > -- Ron Greenman (Пушечное ядро Ивана 6 дюймов) Instructor Fire Protection Engineering Technology Bates Technical College 1101 So. Yakima Ave. Tacoma, WA 98405 [email protected] http://www.bates.ctc.edu/fireprotection/ 253.680.7346 253.576.9700 (cell) Member: ASEE, SFPE, ASCET, NFPA, AFSA, NFSA, AFAA, NIBS, WSAFM, WFC, WFSC They are happy men whose natures sort with their vocations. -Francis Bacon, essayist, philosopher, and statesman (1561-1626) _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
