Question one: Why? Question two: At what stage of system response do you want to abort?
There is no mention anywhere in NFPA 13 about the allowance or disallowance of an abort switch. I just can't see where anyone would be quick enough to get to it if something in the system started an operation anyway. With all the delays already built in to a double interlock system what in the world could another interruption accomplish? I would not be in favor of it. But for the sake of curiosity, what's the application and reasoning behind the question? 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 Chris Cahill Sent: Monday, April 06, 2009 5:15 PM To: [email protected] Subject: Pre-action abort Can one have an abort button on a double interlock pre-action (electric/pneumatic)? I'm assuming it would be like on a clean agent system. PE hasn't got back to us (don't really expect him to, not a surprise). 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 _______________________________________________ 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)
