Chris - you are correct. This is a storage chapter and not an occupancy approach. .3/2,500 period. You are not using EH and reductions do not apply.
*The above is my opinion and has not been processed as a formal interpretation in accordance with the NFPA Regulations Governing Committee Projects. This is provided with the understanding that the AFSA assumes no liability for this opinion or actions taken on it and they are not to be considered the official position of the **AFSA, and/or NFPA or its technical committees.**AFSA cannot provide design or consulting engineering services, and this opinion should therefore not be considered, nor relied upon, as such.* Thanks, John John August Denhardt, PE *Vice President, Engineering and Technical Services* *American Fire Sprinkler Association* m: p: 301-343-1457 214-349-5965 ext 121 w: firesprinkler.org <https://www.facebook.com/firesprinkler.org/> <https://twitter.com/afsa/status/1039528345367732224> <https://www.linkedin.com/company/american-fire-sprinkler-association-afsa-/> <https://www.instagram.com/firesprinklerorg/> *Our members are at the heart of everything we do.* *AFSA is on the move! * *Our new address is 1410 East Renner Rd., Suite 150, Richardson, TX 75082* Treat Your Apprentices Like VIPs! AFSA’s Virtual Instruction Program (VIP) for Apprentices is training that comes straight from our expert instructors. They lead the way to ensure your men and women are trained, letting you focus on OJT. Click here <https://www.firesprinkler.org/sprinkler-apprentice-training/> to learn more and enroll.. On Tue, Jan 31, 2023 at 9:16 AM Chris Dorn < [email protected]> wrote: > The commodity that I am dealing with is solid piled group A plastics. > Exposed, Expanded, Unstable, storage height >5 ft to <12 ft with max > ceiling height of 20’. > > > > The particular section of code which I am questioning is below. > 15.2.2.7(2) states that where table 15.2.2.5(a) allows densities and areas > to be selected in accordance with Curve EH1 there are allowances for > reduction of the hydraulic area to be reduced to 2000 square feet if 8.0 > high temperature heads are used by applying 15.2.2.7(2)(a). When I look at > the section of table 15.2.2.5 the density called out is .3gpm. This is the > density for EH1 but is not called out as EH1 on table 15.2.2.5(a). My > feeling is that while the density called out is .3gpm it is not > specifically called EH1 like some of the other densities in the same table. > Therefore I should calculate 2500 square feet per 15.2.2.7(a) and I cannot > apply 15.2.2.7(2)(a). Agree or disagree and why? > > > > > > > > *15.2.2.7* *For Table 15.2.2.5(a) and Table 15.2.2.5(b), the design > > areas shall be as follows: > > (1) The area shall be a minimum of 2500 ft2 (232 m2). > > (2) Where Table 15.2.2.5(a) and Table 15.2.2.5(b) allow densities > > and areas to be selected in accordance with Curve > > EH1 and Curve EH2 of Figure 13.2.1, any density/area > > from the curves in Figure 13.2.1 shall be permitted. When > > selecting a point from the EH1 or EH2 density/area > > curves of Figure 13.2.1, the following area reductions > > shall be permitted: > > (a) For K-8.0 (115) sprinklers used with Curve EH1, the > > design area shall be permitted to be reduced by > > 25 percent, but not below 2000 ft2 (186 m2), where > > high temperature sprinklers are used. > > > > > > > > > > _________________________________________________________ > SprinklerForum mailing list: > https://lists.firesprinkler.org/list/sprinklerforum.lists.firesprinkler.org > To unsubscribe send an email to > [email protected] >
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