Dear all, Thanks for all the comments, here I answer some of the questions: - There is no necessity to follow any cods in Iraq, there is no national code for fire. - The AHJ is Fire Department, they don't have any knowledge about fire sprinklers and they let us design as we wish. - There is no central monitoring. - I suppose that in case of fire, it takes about 15 minutes for fire departments to come.
Regards, Reza Etalon Security, Erbil - Iraq ------------------------------ On Thu, Jun 26, 2014 7:11 PM IRDT Travis Mack wrote: >Reza: > >A few questions: > >Do you have central monitoring? If so, this cuts your duration down to 30 min >for light hazard. So, if you have QR sprinklers and can reduce to 900 sq ft, >then you have 90 gpm for 30 min in light hazard. That is only 2700 gallons. > >Do you have any kind of municipal supply at all. Let's say you have a demand >of 0.2 over 1500 for 60 min (ord grp 2). If the city can deliver 250 gpm, you >can use a break tank to make up the 50 gpm shortage. This would be a 3000 >gallon tank with a 60 min duration. > >Do you have a good response time from the fire service? If so, maybe you can >negotiate a shorter water supply duration. Let's say you need 300 gpm for 60 >min per NFPA 13. If you have a quick FD response, you may be able to negotiate >a 10 min water supply. > >I'm not sure if any of this will help. I'm just trying to think outside of the >box for you. > >PS: praying you stay safe, my friend. > >Travis Mack, SET >MFP Design, LLC > >Sent from my iPhone > >> On Jun 26, 2014, at 6:58 AM, Matt Grise <[email protected]> wrote: >> >> Reza, >> >> In most areas of the US it is realistic to assume that the public water >> supply will deliver enough water for both the sprinklers and hoses for the >> fire fighters. >> >> Regarding your question about how much water is enough water... The codes >> suggest a minimum amount that can be reliably counted on to suppress a fire. >> If you do not have the space, structural capacity, or water available, then >> it is just not an option. >> >> Of course, some is better than none. >> >> However - it would be a good idea to not rely too much on a system that >> could fail. There are many other ways to make a building safer beside fire >> sprinklers. If the sprinklers are not 100% reliable it would be a good idea >> to consider shorter exit paths, more exits, fire rated egress routes, fire >> resistant construction (finishes and structure), and other architectural >> options to increase occupant safety. >> >> Not every car can be an armored tank... eventually you just have to do the >> best you can with what you have. If the building is going to be built I >> would say "follow all codes". If there is no way that is going to happen, I >> would say "make it as safe as you can". >> >> **for the record - I definitely recommend following all codes all the time! >> >> Matt Grisé PE*, LEED AP, NICET II >> Sales Engineer >> Alliance Fire Protection >> 130 w 9th Ave. >> North Kansas City, MO 64116 >> >> *Licensed in KS & MO >> >> 913.888.0647 ph >> 913.888.0618 f >> 913.927.0222 cell >> www. AFPsprink.com >> >> >> -----Original Message----- >> From: Sprinklerforum [mailto:[email protected]] >> On Behalf Of Reza Esmaeili >> Sent: Thursday, June 26, 2014 8:34 AM >> To: [email protected] >> Subject: Water Tank is so Big! >> >> Hello All, >> I would like to divide my question in three parts: >> >> - What is the volume and pressure of public water supply in the US? I wonder >> why you don't usually feel any problem with the big amount of water required >> for sprinklers and standpipe systems as per NFPA-13. Do you count on your >> public water supply or you always consider a private water tank for your >> sprinkler and standpipe system? >> >> - While a 12,000 gallon water tank seems very realistic to use for a office >> building considered as a light hazard occupancy with design density of 0.1 >> gpm per sq ft over 1500 sq ft. But we don't have such a big space in our >> buildings in Iraq to place the water tank because we usually don't have >> parking in our buildings to also place the water tank. What should we do? >> >> - While 88% percent of fires are controlled only by 1 or 2 sprinklers >> activation, so is it really necessary to consider around 12 operating >> sprinklers which will make the water tank so big? I know you will say: "Yes, >> 88% is not 100%" but I say, we don't have such a big space, so most of the >> buildings will not install sprinklers at all. I say if I install a 3000 >> gallon water tank which I have the space, it can supply enough water to at >> least 3 sprinklers and this will control 88% of fires and it is better than >> not installing sprinklers. Please suggest a realistic solution. >> >> Please don't suggest quick response sprinklers to reduce the size of design >> area, even with QR sprinklers, the water tank is so big! >> >> Thanks, >> Reza >> www.etalonsecurity.com >> Erbil / Iraq >> >> >> _______________________________________________ >> 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
