But you may not necessarily have smoke detectors in every installation, especially when the area is sprinklered.
Craig L. Prahl, CET Fire Protection Specialist Mechanical Department CH2MHILL Lockwood Greene 1500 International Drive PO Box 491, Spartanburg, SC 29304-0491 Direct - 864.599.4102 Fax - 864.599.8439 [email protected] http://www.ch2m.com -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Ron Greenman Sent: Wednesday, July 15, 2009 11:57 AM To: [email protected] Subject: Re: water flow timing I like that take also. Do you need "early" warning from waterflow with an alarm system present? Presumably that's what the smokes are for. I wonder what the 72 committee had in mind? On Wed, Jul 15, 2009 at 8:53 AM, Chris Cahill<[email protected]> wrote: > Right or wrong I always reconciled 13 vs. 72 like this. The flow > switch must activate within the parameters of 13. 5 minutes. Once > the paddle moves and the electrical connection is made 72 takes over > and the FA must respond within the parameters of 72. 90 seconds. So > in theory 6.5 minutes could pass between opening the inspectors test > valve and the alarm signal engaging in the FAP. > > 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 Jim > Johnston > Sent: Wednesday, July 15, 2009 10:14 AM > To: [email protected] > Subject: RE: water flow timing > > NFPA 72 5.11.2 says within 90 seconds. > > Jim Johnston, P.E. > Fire Protection Engineer > Inland Fire Protection, Inc > 1100 Ahtanum Road > Yakima, WA 98903 > Phone 509-248-4471 > Fax 509-248-1180 > [email protected] > > > -----Original Message----- > From: Geoff Dyce [mailto:[email protected]] > Sent: Wednesday, July 15, 2009 7:55 AM > To: [email protected] > Subject: water flow timing > > We are having a discussion regarding time required for water flow > notification. One party says on a wet system, there is no particular > time requirement. Another party says there is a time limitation. > What say you all??? > > Thanks in advance. > > > > Geoffrey H. Dyce > > Operations Manager/NICET IV > > DELTA Fire Sprinklers, Inc. > > A Vetran Owned Small Business > > Ph: 407-328-3000 ext 143 > > Fx: 407-575-9991 > > E-Mail: [email protected] > > > > > > _______________________________________________ > Sprinklerforum mailing list > http://lists.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 > http://lists.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 > http://lists.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 Instructor Fire Protection Engineering Bates Technical College Tacoma, WA Member: SFPE, ASCET, NFPA, AFSA, NFSA AFAA _______________________________________________ Sprinklerforum mailing list http://lists.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 http://lists.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)
