Yeah, I just needed confirmation to make sure I was reading it right since someone read 12.5.1 and insisted it applied to ALL preaction systems.
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, December 03, 2009 10:55 AM To: [email protected] Subject: Re: Preaction area increase other than a slight case of paranoia that you might be reading it wrong, where's the beef? IT does indeed mean an increase for only the DIPA for the occupancy hazard approach and all preaction in storage (except ch 13 Misc and Class I-IV < 12ft and Group A plastic < 5ft which can be protected per ch 11 thus the occupancy hazard approach in all its glory and modifiers including QR reduction and allowed sloped ceilings) Roland On Dec 3, 2009, at 6:14 AM, <[email protected]> wrote: > Need clarification: > > Based on NFPA 13, 11.2.3.2.5 only DIPA systems require the 30% area > increase. This does not apply to Single or Non-interlocked PA > systems. > > > NFPA 13, 2007, 12.5.1 area increase of 30% only applies to preaction > systems installed in storage areas. > > Correct? > > > Craig L. Prahl, CET > Fire Protection Specialist _______________________________________________ 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)
