That's easy, it's in the next paragraph after the one that doesn't require sprinklers inside the 12" diameter structural columns.
Mark at Aero 602 820-7894 From: Sprinklerforum [mailto:[email protected]] On Behalf Of Mike Hairfield Sent: Wednesday, January 24, 2018 1:53 PM To: [email protected] Subject: [EXTERNAL] Re: Conveyors 24" wide AHJ is looking for something in NFPA or FM Global that states that they do not require protection ________________________________ From: Sprinklerforum <[email protected]<mailto:[email protected]>> on behalf of Steve Leyton <[email protected]<mailto:[email protected]>> Sent: Wednesday, January 24, 2018 3:50 PM To: [email protected]<mailto:[email protected]> Subject: RE: Conveyors Oops - they're not 30" wide, they're 30" AFF. So how wide are they? I've worked on some giant FC projects but the conveyors weren't 48" in any case. SL From: Sprinklerforum [mailto:[email protected]] On Behalf Of Steve Leyton Sent: Wednesday, January 24, 2018 12:49 PM To: [email protected]<mailto:[email protected]> Subject: RE: Conveyors Considering that the fire load that we want to protect is being conveyed with full exposure to sprinklers above, and it's not practical in distribution and fulfillment center operations to store combustibles under such belt systems, I can't imagine why you'd need sprinklers below a 30" conveyor even if it wasn't open. My 2ยข and nothing more, Steve L. From: Sprinklerforum [mailto:[email protected]] On Behalf Of Mike Hairfield Sent: Wednesday, January 24, 2018 12:40 PM To: Sprinkler Forum Subject: Conveyors Here is my question: ESFR Systems that have some roller conveyors at 30" AFF that the the opening between rollers is over 50% do they require sprinkler protection under them? It use to be that they were not required to be protected! Thanks, Mike Hairfield
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