I've also seen the conveyor be enclosed for 10' +/- on either side with either QR heads or with something like a gem thermal control valve on each side, each TCV feeding spkrs on BOTH sides of the wall.
Learn from history, if you have any aerosols present, Kmart (1981) Falls twp, PA; just over a mil SF of HPR whse burned to ground, water curtains at fire wall openings didn't slow down aerosol rockets that made fire in various quadrants of the building, joists came down 22 minutes after 1st waterflow alarm. Water curtains have a place, that wasn't it. As the old FM adage went: What has happened can happen. Great series of examples of what happened in some big losses. glc -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Thom McMahon Sent: Thursday, April 16, 2009 11:39 AM To: [email protected] Subject: RE: rated wall opening Only the window sprinklers. Thom McMahon, SET Firetech, Inc. 2560 Copper Ridge Dr P.O. Box 882136 Steamboat Springs, CO 80488 Tel: 970-879-7952 Fax: 970-879-7926 -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of [email protected] Sent: Thursday, April 16, 2009 9:40 AM To: [email protected] Subject: RE: rated wall opening Rated partition and rated wall assemblies are different in construction, but in either case has anyone seen any calcs proving equivalency of a sprinkler or sprinklers to a UL listed rated assembly? 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 Roland Huggins Sent: Thursday, April 16, 2009 11:36 AM To: [email protected] Subject: Re: rated wall opening It's done all the time in fire partitions but a 3 hr wall is starting to sound like a fire wall (which presents a much greater concern regarding integrity etc.). I'd proceed carefully. Roland On Apr 16, 2009, at 7:50 AM, Dewayne Martinez wrote: > Is there any testing or criteria in regards to equivalent rating for a > water curtain or deluge curtain when protecting an opening in a rated > wall? I have a 3' opening in a 3 hour wall and the architect is > trying to see if this can be accomplished with a water or deluge > curtain. > Thanks, > Dewayne > _______________________________________________ > 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) _______________________________________________ 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)
