Didn't realize you were from Texas since most don't consider 15' x 15' a SMALL item. Even such large sections with opening between them (often called floating clouds) are not an acceptable ceiling but just an obstruction.
Roland On May 20, 2010, at 12:16 PM, Todd Williams wrote: > So we can't consider a ceiling a collection of interconnected 15'x > 15' heat collectors? > > > > At 03:13 PM 5/20/2010, you wrote: >> That reference does NOT support the existence of functional heat >> collectors - even if you presume such a thing (I prefer to use assume >> since we know what that means). It's to stop folks from sticking >> small items over the sprinkler then claiming they provide some value. >> As the Annex points out, such items more often than not slow down >> activation times. >> >> There can be a rare reason to place small horizontal items above the >> sprinkler. At the DOE plant we used 1 sq ft of metal over some of our >> sprinklers. It was on our cooling towers over the motors and it >> wasn't a "heat collector" but a crap deflector from the birds. Other >> than the in-rack sprinkler assembly, I can't think of another good >> reason. >> >> Roland >> >> On May 19, 2010, at 2:36 PM, Chris Cahill wrote: >> >>> Who knows maybe it's not a change and the AHJ accepted as a heat >>> collector. >>> BTW I've been corrected heat collectors do exist. NFPA 13 '10 says >>> so. So >>> next time someone says there is no such thing as a heat collector >>> refer them >>> to 13 '10-8.5.4.1.4 and the only limit is when used as a means to >>> assist the >>> activation of a sprinkler. So it presumes there are other legal uses >>> of heat >>> collectors. But I digress. >>> >>> Chris Cahill, P.E. >> >> _______________________________________________ >> 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) > > Todd G. Williams, PE > Fire Protection Design/Consulting > Stonington, CT > 860.535.2080 > www.fpdc.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)
