I think in this case go back to first principles. Why omit sprinklers when they are the most reliable and effective means of fire protection? Most concerns about wet sprinklers over electrical equipment are ill founded and providing the design is made to cover any possible problems there is no problem. Position sprinklers away from equipment to avoid drips, use concealed or guarded heads to avoid impact damage,etc. Can zone room with flow switch to speed up locating fire. Going to pre-action etc is lower reliability but eases some worries. Add Gas Flood and sensitive smoke detection as additional early responses. Most Electrical/switch/computer Rooms I have seen over 50 yrs of designing have contained additional fire loads like spare components etc in cardboard and plastic packaging so there are hazards. We protect all electrical/computer rooms unless fully separated by 2hrFRR walls, ceilings, floors and doors. IF Gas Flood use Inert Gas such as Inergen IG541. Much safer in a Hospital situation with no asphyxiation or products of decomposition problems.
Russell Gregory Christchurch New Zealand -----Original Message----- From: Sprinklerforum [mailto:[email protected]] On Behalf Of Aaron Peck Sent: Thursday, 20 November 2014 9:28 a.m. To: [email protected] Subject: Re: Fm 200 or co2 Something I found out, literally like within the last week, that it's a British standard for requiring FM200 or CO2. I'm right now in Bahrain and it was asked why do we have sprinklers inside these very rooms. Evidently from what I'm told that they usually don't have protection inside small electrical/communication rooms. For larger ones the special systems are used. Don't forget NFPA does allow you do omit sprinklers from electrical rooms, I don't have the code number but you have to meet all 4 criteria. Two that I know off the top of my head is that all walls are 2 hours rated and only dry type equipment is located in them. As far as the other two I'm not remembering. Aaron M. Peck SET +1 (202) 407-9079 Skype +855 (78) 700-407 Sent from my iPad > On Nov 19, 2014, at 11:19 PM, Art Tiroly <[email protected]> wrote: > > The primary fire protection will be wet fire sprinkler. If the owner > wants a clean agent for additional fire suppression you can use FM200. > CO2 can be lethal to human occupancy. If the owner wants a variance > they may be able to use just the FM200. I do not kjnow what country you are working in. > > Art > ATCO/Tiroly > > -----Original Message----- > From: Sprinklerforum > [mailto:[email protected]] > On Behalf Of Engr. belal alrwadieh > Sent: Wednesday, November 19, 2014 2:00 PM > To: [email protected] > Subject: Fm 200 or co2 > > Gentlemen, > Im having a hospital project, and im having electrical room and > communication room in each zone apmost 3 room per floor. > As per th IFC drawing it is covered by sprinkler sysetm .. > What i want to clarify is there any clear statement to define the > precise description for the fire suppression in this case or whether > it regular wet sprinkler or it should be FM 200 ... > > Many thanks inadvance > > Sent from Yahoo Mail on Android > > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkl > er.org > > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkl > er.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
