I would agree, if they state .3 density rather than EH1 then they specifically wanted .3/2500 not Extra hazard 1 and applicable modifications.
Mike Morey CFPS 3229 • NICET S.E.T. 123677 Project Manager • Fire Protection Group Shambaugh & Son, LP an EMCOR Company 7614 Opportunity Drive • Fort Wayne, IN • 46825 direct 260.487.7824 / cell 260.417.0625 / fax 260.487.7991 email [email protected] [cid:[email protected]] From: Chris Dorn <[email protected]> Sent: Tuesday, January 31, 2023 12:25 PM To: [email protected]; Chris Dorn <[email protected]> Subject: [Sprinklerforum] Clarification on 15.2.2.7(2) 2016 Ed. 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) ZjQcmQRYFpfptBannerStart This Message Is From an Untrusted Sender You have not previously corresponded with this sender. ZjQcmQRYFpfptBannerEnd 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<https://urldefense.com/v3/__http:/15.2.2.5__;!!FaxH778!ZUIEI4eX9Gy1mvp4uU0Xa1Yfl3RgaWn9tgmtwIIrkvel0Y0HPLTqW10BLn01gbHvZGcuPM9oCs8r4mSulh1y-ddiNoJztQ$> 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. [cid:[email protected]] This message is for the named person's use only. It may contain confidential, proprietary or legally privileged information. No confidentiality or privilege is waived or lost by any mistransmission. If you receive this message in error, please immediately delete it and all copies of it from your system, destroy any hard copies of it and notify the sender. You must not, directly or indirectly, use, disclose, distribute, print, or copy any part of this message if you are not the intended recipient.
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