13-8.6.5.3.3 applies to obstructions OVER four foot wide. (I just went through this on a job with a 48" wide duct).
-----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of [email protected] Sent: Monday, March 29, 2010 3:27 PM To: [email protected] Subject: RE: 2'x4' Light Obstruction FMDS 2-8N used to state OVER 4 ft wide or 10 sq. ft. That pretty much eliminated 2x4 light fixtures. 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 George Medina Jr Sent: Monday, March 29, 2010 3:25 PM To: [email protected] Subject: Re: 2'x4' Light Obstruction Thanks guys, just making sure! George Medina Jr. Sr. Fire Sprinkler Designer -----Original Message----- From: Eric Tysinger <[email protected]> To: [email protected] <[email protected]> Sent: Mon, Mar 29, 2010 12:24 pm Subject: RE: 2'x4' Light Obstruction I have always looked at the width as being the shortest side. Take for instance 2' wide duct that is 15' long. Is it really 15' wide and 2' long? Thanks, ric Tysinger CET ICET III - 108988 esigner ayne Automatic Fire Sprinklers, Inc. 370 Motorsport Drive oncord, NC 28027 : (704)782-3032 x1751 : (704)795-6838 : (239)633-9703 ----Original Message----- rom: [email protected] [mailto:[email protected]] n Behalf Of George Medina Jr ent: Monday, March 29, 2010 3:13 PM o: [email protected] ubject: 2'x4' Light Obstruction I have a situation where I have an open ceiling tiled hallway and there are 2' x ' light fixtures. According to NFPA-13 (2007) Sec. 8.6.5.3.3 it seems I need overage under a 4' wide fixed obstruction. My sprinklers are 5' above the ights. Do they need to have ceiling tiles in place around it or is there a olution I am missing. Any help would be greatly appreciated. eorge Medina Jr. 23-236-1640 ______________________________________________ prinklerforum mailing list [email protected] ttp://fireball.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) ______________________________________________ prinklerforum mailing list [email protected] ttp://fireball.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 [email protected] http://fireball.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 [email protected] http://fireball.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 [email protected] http://fireball.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)
