George, if there's no potential for storage or pool fires and you consider run-down from overhead sprinklers, what was the driving force behind the additional sprinklers? Just curious.
Craig L. Prahl, CET Fire Protection Group 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.lg.com -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of George Church Sent: Wednesday, February 21, 2007 1:37 PM To: [email protected] Subject: RE: Low, wide obstructions When we (#22 committee) discussed the need for sprinklers under above-ground FRP tanks indoors used as supply for water-based fire protection systems, I believe 18" was the height that seemed reasonable to require heads below said tank. Understand we were visualizing no exposure to pool fires, and no storage allowed below. In your case, I'd suggest contacting the AHJ and ask- since each case varies with the history of an Owner's ability to control "misc storage", combustibility of the plant, what stockpiles or processes may be nearby, etc. George Church Rowe Sprinkler -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Ed Kramer Sent: Wednesday, February 21, 2007 11:49 AM To: [email protected] Subject: Low, wide obstructions NFPA 13 is very clear about protecting below obstructions over 4' wide. No stress there. But what if the bottom of a 50" wide duct is only 12" above the floor? Makes no sense to put a sprinkler below it. If the bottom were 8' AFF, then the sprinkler's a no-brainer. Since 13 is mute on this issue, anybody want to share their rule-of-thumb for determining when to install a sprinkler based on floor clearance (or lack of)? Ed Kramer Littleton, CO _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum
