Actually, a circle is an infinite number of 'walls' thus you are infinite minus 1 in violation on the code.
Chris Cahill Fire Protection Engineer Burns & McDonnell 952-656-3652 [email protected] -------- Original message -------- From: AKS-Gmail-IMAP Date:09/27/2014 8:38 PM (GMT-06:00) To: [email protected] Subject: Re: Small Room Rule A circular room is 18 feet in diameter. The exact center is an available sprinkler location. How many standard coverage sprinklers are required? There is only one wall in this case and it is 9 feet from the center. On Sep 26, 2014, at 12:28 PM, IPA <[email protected]> wrote: > Regardless of if you're 9 ft off a wall your overall coverage still cannot > exceed the values in 8.6.2.2.1(a). > > On Fri, Sep 26, 2014 at 10:20 AM, Parsley Consulting < > [email protected]> wrote: > >> Jerry, >> I don't know what anyone else is going to use to answer this, however >> I've always regarded the answer as "yes". Here's why - by definition a >> small room does not exceed 800 square feet, per 3.3.21. Let's say for >> argument that the room you're looking at is 800 square feet. You would >> need at least two sprinklers, since the maximum coverage for any single >> sprinkler cannot exceed 400 square feet, per 8.5.2.2.2. It's still a small >> room, if light hazard, and those rules 8.6.3.2.4.1 still apply. NFPA 13 >> points to allowing more than one sprinkler in a small room in 8.6.2.1.2.1, >> as it suggests that the coverage area per sprinkler is based on the square >> footage of the room divided by the number of sprinklers (plural) in the >> room. >> >> Seems to me you can. >> *Ken Wagoner, SET >> *Parsley Consulting*** >> *350 West 9th Avenue, Suite 206 >> *Escondido, California 92025 >> *****Phone 760-745-6181* >> Visit our website <http://www.parsleyconsulting.com/> *** >> >> On 9/26/2014 8:48 AM, Jerry Van Kolken wrote: >> >>> I've been reading this thread and come to think I've miss understood how >>> to >>> apply this exception. >>> >>> >>> Based on NFPA 13(13ed)Fig A.8.6.3.2.4 I've always thought the only time >>> you >>> would exceed the 15'-0" spacing for a sprinkler is when you have a single >>> sprinkler in a small room. >>> >>> >>> In a situation where an L shape room 12x18 with a 4' pop out for the entry >>> in one of the corners along the 18' side, Could you get away with 2 >>> sprinklers or do you need 3? >>> >>> >>> Jerry Van Kolken >>> >>> Millennium Fire Protection Corp. >>> >>> 101 Copperwood Way, Suite H >>> >>> Oceanside, CA 92058 >>> >>> (760) 722-2722 FX 722-2730 >>> >>> >>> _______________________________________________ >>> 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 _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
