Well stated Steve. I could not agree more. John
Sprinklers Save > On Dec 8, 2015, at 4:43 PM, Steve Leyton <[email protected]> wrote: > > Please, stop. This is NOT flammable liquids storage. Foam and wind effect > and all this other stuff is Henny-Penny-the-sky-is-falling distraction > (IMHO). 7.3.5.2 of 30A states, " Where required, an automatic fire > suppression system shall be installed in accordance with the appropriate NFPA > standard, manufacturer's instructions, and the listing requirements of the > systems. Obviously, NFPA 13 doesn't have a prescriptive for fuel island > canopies, so let's use some common sense. The fuel is stored in UG tanks > away from the islands and retail store or cashiers hut. NFPA 30 doesn't > apply as this isn't storage, but Chapter 18 states that when a hose is used > in the transfer of F/C liquids as part of an "incidental operation", it shall > be equipped with a self-closing valve. That's what a automotive fuel hose > does - it's a dead man that kicks off from several triggers including back > pressure and impact. So the movie scene of a guy having a heart attack and > squirting a steady stream of fuel into the air as a crow drops a burning > cigarette butt into the pool is ... far-fetched. At most, we can reasonable > expect that there could be a quart of gasoline on the ground if there's an > accident, so we would be protecting for that and the cars at the island that > are ostensibly full or nearly full of fuel. Just like in an OH 1 parking > garage. > > OH 2 if it's a month ending in Y ... my 3ยข. > > SL > > > > > > -----Original Message----- > From: Sprinklerforum [mailto:[email protected]] > On Behalf Of [email protected] > Sent: Tuesday, December 08, 2015 10:25 AM > To: [email protected] > Subject: RE: Canopies Over gas Pumps > > This is outside the purview of NFPA 13. > > You're dealing with flammable and combustible liquids, hydrocarbons on which > water alone will have limited affect. > > For fuel loading/unloading stations it is common to employ foam-water deluge > for the area below the canopy. > > Also an option is dry chemical. Pyrochem has a system called ATTENDANT II > (distributed by Tyco) > > The HAJ would have to approve either one but more tend to lean towards a > sprinklered solution than a one-shot gaseous system. A very windy day could > totally render a gaseous extinguishing system useless. > > For design you do need to consider wind effect on your system discharge. > Don't get swayed into the minimum .16 gpm/sf permitted on foam-water systems. > You can have coverage issues again due to wind influences. > > NFPA 30, NFPA 30A, NFPA 16 and NFPA 2001 are good places to start. > > Good luck and have fun! > > Craig L. Prahl > Fire Protection Group Lead/SME > CH2MHILL > Lockwood Greene > 1500 International Drive > Spartanburg, SC 29303 > Direct - 864.599.4102 > Fax - 864.599.8439 > CH2MHILL Extension 74102 > [email protected] > > > -----Original Message----- > From: Sprinklerforum [mailto:[email protected]] > On Behalf Of James Crawford > Sent: Tuesday, December 08, 2015 1:04 PM > To: [email protected] > Subject: Canopies Over gads Pumps > > Looking for some direction on the protection of a Gas Service station canopy > over the gas pumps. > > > > We have an AHJ that want the canopy protected, but I can't find anything that > outlines the protection requirements for this area. My first thought is Extra > Hazard group 1. > > > > Can someone point me in the right direction > > > > > > Thank you > > > > > > James Crawford > > Phaser Fire Protection Ltd. > > Phone 604-888-0318 > > Fax 604-888-4732 > > Cel 604-790-0938 > > Email [email protected] > > > > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
