Well that answers the five W questions, and why it's not in the 1978 code. Thanks Larry.
On Fri, Apr 11, 2014 at 6:13 AM, Larry Keeping <[email protected]> wrote: > From The Technical Committee Report for the 1982 edition of NFPA 13: > > 13- P107 - (5-5.6 and Figure 5-5.6 (New): Accept in Principle > SUBMITTER: Ron Cote', Factory Mutual Research Corp. > RECOMMENDATION: Add a new section to read: > 5-5.6 Small loading docks, covered platforms, ducts or similar > small unheated areas may be protected by dry pendent sprinklers > extending through the wall from wet sprinkler piping in an > adjacent heated area, as shown in Figure 5-5.6. > > Where possible, the dry pendent sprinkler shall extend down at a > 45° angle. The width of the area to be protected shall not > Exceed 7 1/2 ft (2.3 m). Sprinklers shall be spaced not over > 12 ft (3.7 m) apart. > Add a new Figure 5-5.6 > ... > SUBSTANTIATION: The above proposed alternative provides a > workable solution where antifreeze systems are prohibited. > > Other than later being moved to the Appendix (Annex), it has remained > virtually unchanged since that time. > > As I remember it, horizontal sidewall sprinklers had only been on the > market for a few years prior to this and dry horizontal sprinklers did not > become available until many years afterwards. > > > Larry Keeping, P.Eng. > > Professional Loss Control > 3413 Wolfedale Road, Suite 6 > Mississauga, Ontario > L5C 1V8 > > Phone: 905-949-2755, ext. 204 > Fax: 905-949-1752 > > E-mail: [email protected] > > -----Original Message----- > From: [email protected] [mailto: > [email protected]] On Behalf Of Steve Leyton > Sent: April-10-14 4:37 PM > To: [email protected] > Subject: Fig. A.8.15.7 > > Anyone out there, committee members or clairvoyants, who can say why this > illustration shows a dry-pendent sprinkler in what appears to be a > non-conforming orientation? > > Thanks, > SML > _______________________________________________ > 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 > -- Ron Greenman Instructor Fire Protection Engineering Technology Bates Technical College 1101 So. Yakima Ave. Tacoma, WA 98405 [email protected] http://www.bates.ctc.edu/fireprotection/ 253.680.7346 253.576.9700 (cell) Member: ASEE, SFPE, ASCET, NFPA, AFSA, NFSA, AFAA, NIBS, WSAFM, WFC, WFSC They are happy men whose natures sort with their vocations. -Francis Bacon, essayist, philosopher, and statesman (1561-1626) A problem well stated is a problem half solved. -Charles F. Kettering, inventor and engineer (1876-1958) _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
