Vance, Thank you. When I spoke to this friend, Jerry, the EFSR example is the very same one that we both mentioned. Also, all of your talking points are the same ones that we spoke about. I appreciate the input, and as well the validation as to what we had spoken about.
Bob Knight -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Ray Vance Sent: Monday, August 20, 2007 6:23 AM To: [email protected] Subject: RE: Barrier / Partition Definition Bob, The language is such that the standard clarifies the PURPOSE of the barrier, ie "barrier or partition capable of trapping heat" in its requirement to provide such a barrier or partition. If you go further into this type of requirement in the NFPA standards, you could also correlate it to the separation required between ESFR systems and standard response systems, the only requirement for the "barrier or partition" being a draft curtain, if there are no walls or other separations in place. Both requirements are to keep a lower hazard area from operating prematurely adjacent to a higher hazard area, thereby robbing the higher hazard area of its intended minimum water supply. Sometimes the use of a word such as "barrier" or "partition" is taken too literally, when all that is intended ( if you read ALL the language of the standard and not just picking out a few words) is to create a mininal separation (not a fire or other rated assembly) so the sprinkler system operates in the most efficient manner. In this case it doesn't appear to be a proper application of the language of 11.1.2, in that the wall WILL provide the barrier or partition required by the intent of the standard, ie IS CAPABLE OF TRAPPING HEAT! Top of the day to you all! Ray Vance Chief Engineering Tech. Wayne Automatic Fire Sprinklers, Inc. (407) 656-3030 www.waynefire.com -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Bob Knight Sent: Friday, August 17, 2007 5:22 PM To: [email protected] Subject: Barrier / Partition Definition Does anyone have a good definition for what 11.1.2 means by "Barrier" or "Partition" (NFPA 13 2002 ed). I have a friend who has an AHJ telling him that an 8" concrete full height wall with two door openings in it does not qualify. My understanding of this is that this is a perfectly acceptable barrier since the purpose of the barrier is to prevent fusing of the sprinklers from one area to another. The reason the question arises is that this AHJ wants to extend a new .55 / 2500 sf area through the concrete wall and into an existing .2 / 1500 sf system. Without being too obvious, the original system has no possibility of providing this density, let alone the proper spacing of sprinklers. Anyway, any help will be appreciated. Thank you, Bob Knight, CET (208) 495-2057 [EMAIL PROTECTED] www.firebyknight.com No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.484 / Virus Database: 269.12.0/957 - Release Date: 8/16/2007 1:46 PM _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum To Unsubscribe, send an email to:[EMAIL PROTECTED] (Put the word unsubscribe in the subject field) Wayne Automatic Fire Sprinklers, Inc. 2006 Inductee into "The Players Hall of Fame" at The Great Games of Business Wayne Automatic Fire Sprinklers, Inc. "Best Places to Work" Rated #1 in 2006 Large Business Category by Orlando Business Journal _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum To Unsubscribe, send an email to:[EMAIL PROTECTED] (Put the word unsubscribe in the subject field) No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.484 / Virus Database: 269.12.1/962 - Release Date: 8/20/2007 1:08 PM No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.484 / Virus Database: 269.12.1/962 - Release Date: 8/20/2007 1:08 PM _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum To Unsubscribe, send an email to:[EMAIL PROTECTED] (Put the word unsubscribe in the subject field)
