In table 16.5.2.1 to the right of the Table there is a category "Layout". You'll see A-F referenced. Those layouts are described in 16.5.1.10 and elsewhere.
Craig L. Prahl, CET Fire Protection CH2MHILL Lockwood Greene 1500 International Drive Spartanburg, SC 29304-0491 Direct - 864.599.4102 Fax - 864.599.8439 CH2MHILL Extension 74102 [email protected] -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of [email protected] Sent: Tuesday, December 07, 2010 9:50 AM To: [email protected] Subject: Re: NFPA 30 Layout E Where do you even see scheme E in the code? I see schemes A, B, and C and then it skips to G, H, and I. There is a scheme D talked about in the annex - annex D - but where are schemes E and F? There is a long list of errata for NFPA 30 but the missing schemes E and F are not on the list. I checked my paper copy and the online version and I can find no scheme E and F description. The only mention is table 16.5.2.1. John Hoffman P.E. | Fire Protection Engineer | Facility Engineering Services, KCP, LLC - Burns & McDonnell Engineering | National Nuclear Security Administration's Kansas City Plant | Operated by Honeywell FM&T | 2000 E. 95th St | Kansas City, MO 64131 | ph 816-997-7213 | [email protected] From: "Joe Burtell" <[email protected]> To: <[email protected]> Date: 12/06/2010 11:06 AM Subject: NFPA 30 Layout E Sent by: [email protected] Per NFPA 30 TABLE 16.5.2.1, I am designing a system using Layout "E" for the in-rack. I am wondering if I am supposed to balance the in-rack with the overhead? I have noted that NFPA 30 for schemes A,B, & C sections: 16.6.1.6 Ceiling sprinkler demand shall not be included in the hydraulic calculations for in-rack sprinklers. 16.6.2.6 Ceiling sprinklers for containers that do not exceed 1 gal (3.8 L) capacity shall meet the following requirements: (1) Ceiling sprinklers shall be designed to protect the surrounding occupancy. (2) Ceiling sprinkler water demand shall not be included in the hydraulic calculations for the in-rack sprinkler protection. (3) Water demand at the point of supply shall be calculated separately for in-rack and ceiling sprinklers and shall be based on the greater of the two. 16.6.3.5 Ceiling sprinkler demand shall not be included in the hydraulic calculations for in-rack sprinklers. 16.6.3.6 Water demand at point of supply shall be calculated separately for in-rack and ceiling sprinklers and shall be based on the greater demand. These all call for the overhead NOT to be balanced with the in-rack but nothing is mentioned for scheme "E". Best regards, Joe Burtell, SET, CFPS Burtell Fire Protection Phone: 406.652.7697 Fax: 406.652.7743 Cell: 406.861.4507 Email: [email protected] Web Site: http://www.burtellfire.com _______________________________________________ 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)
