I would say everything is good. You have 2 scenario's there. If you use 8.6.5.1.2 (1) you are spacing the sprinklers so that the beam, in reality, is not an obstruction. You can then perhaps pretend it's not there, then continue with your standard spacing (15'). If you use 8.6.5.1.2 (2) then you are arranging the sprinklers on each side of the obstruction to share the responsibility off covering under it.
Thanks, Eric Tysinger CET NICET 108988 Designer Wayne Automatic Fire Sprinklers, Inc. 4370 Motorsport Drive Concord, NC 28027 p: (704)782-3032 f: (704)795-6838 C: (239)633-9703 -----Original Message----- From: sprinklerforum-boun...@firesprinkler.org [mailto:sprinklerforum-boun...@firesprinkler.org] On Behalf Of Matt Grise Sent: Monday, February 08, 2010 4:43 PM To: 'sprinklerforum@firesprinkler.org' Subject: RE: Beam obstruction rules What is the FPE's argument against it? Matt Grisé PE*, LEED AP Sales Engineer Alliance Fire Protection *Licensed in KS & MO 913.888.0647 ph 913.888.0618 f 913.927.0222 cell www. AFPsprink.com -----Original Message----- From: sprinklerforum-boun...@firesprinkler.org [mailto:sprinklerforum-boun...@firesprinkler.org] On Behalf Of Cliff Whitfield Sent: Monday, February 08, 2010 3:40 PM To: sprinklerforum@firesprinkler.org Subject: Beam obstruction rules Forum, I have a question regarding beam obstruction rules for standard spray uprights. I have a light hazard project that has 15" deep beams. The first beam is 9' from the wall and the next beam is 17' away from beam #1. If I space my first head 5' away from beam #1 so that it is not an obstruction (per table 8.6.5.1.2-NFPA 13, 2007 ed), can my next head be 15' from head #1? This is not supposed to be a trick question but I have a disagreement with an FPE on this. Thanks for your insight on this one. Cliff Whitfield, SET President Fire Design, Inc. cl...@fire-design.com www.fire-design.com -----Original Message----- From: sprinklerforum-boun...@firesprinkler.org [mailto:sprinklerforum-boun...@firesprinkler.org] On Behalf Of George Church Sent: Monday, February 08, 2010 3:01 PM To: sprinklerforum@firesprinkler.org Subject: L'il Abner-Mattress Tester Back in 2007 the CPSC required a fire-resistant outer (fabric) shell on all mattresses and box springs for sale in the USA. Is anyone familiar with this to be able to tell if this reduces the hazardous classification of the foam when stored in a retail store stockroom to 12' high? Stored on floor, flat, as if prepared for a princess and a pea. Owner would prefer not to take .2/1500 to .6 for obvious reasons, one being tenant fitout of a portion of an existing retail center. George Church Rowe Sprinkler _______________________________________________ Sprinklerforum mailing list Sprinklerforum@firesprinkler.org http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: supp...@firesprinkler.org To Unsubscribe, send an email to:sprinklerforum-requ...@firesprinkler.org (Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list Sprinklerforum@firesprinkler.org http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: supp...@firesprinkler.org To Unsubscribe, send an email to:sprinklerforum-requ...@firesprinkler.org (Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list Sprinklerforum@firesprinkler.org http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: supp...@firesprinkler.org To Unsubscribe, send an email to:sprinklerforum-requ...@firesprinkler.org (Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list Sprinklerforum@firesprinkler.org http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: supp...@firesprinkler.org To Unsubscribe, send an email to:sprinklerforum-requ...@firesprinkler.org (Put the word unsubscribe in the subject field)
