American Fire Sprinkler Association [http://www.firesprinkler.org/] ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
AFSA Technical Update ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ A newsletter dealing with codes and other technical issues April 11, 2014 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ NFPA 13 Formal Interpretations NFPA has informal interpretations on the document information page for NFPA 13 at nfpa.org/13 [http://r20.rs6.net/tn.jsp?e=001yqzRgWwuQ48D22tddJ3zkliq24bVRit9UoaPclU8-kknuhhXHT34A4fXA3KjIbxP6mAPuuPAnKpuv7PRwPYf0ELpf0Ro5Xr0]. Installation of Sprinkler Systems 2013 Edition Reference: 8.15.9 F.I. No.: 13-99-2 Background: Section 8-5.6 states that the clearance between the sprinkler deflector and the top of storage shall be 18 in. (457 mm) or greater. Section 8.15.9 provides guidance on sprinkler protection of library stacks. This guidance allows floor to ceiling bookshelves and requires sprinklers to be installed in every aisle with a distance between sprinklers along aisles not to exceed 12 ft (3.6 m). Question: Is it acceptable to apply the principles of NFPA 13, 8.15.9 to the storage of Medical Records on fixed open bookshelves, thereby allowing the tops of the bookshelves used for this purpose to come within less than 18 inches of the horizontal plane of the sprinkler deflector with sprinklers installed in every aisle? Answer: Yes. Issue Edition: 1999 Reference: 5-13.10 Issue Date: January 3, 2002 Effective Date: January 23, 2002 Reference: 11.2.3.1.8(1) and 11.2.3.2.3.1 F.I. No.: 13-02-1 Question No. 1: Is it the intent of 11.2.3.2.3.1 to permit the system area of operation to be reduced below the limits of Figure 11.2.3.1.1 (e.g., less than 1500 sq ft)? Answer: Yes Question No. 2: If the Answer to Question No. 1 is yes, is the intent to allow the density to be less than the limits of Figure 11.2.3.1.1 (e.g., less than 0.1 gpm/sq ft for Light Hazard) as long as the point was legitimately picked from the density/area curve and appropriately reduced per 11.2.3.2.3? Answer: No Question No. 3: Is it the intent of Section 11.2.3.1.4(1) to require the densities for 1500 sq ft for all applications, including when Section 11.2.3.2.3.1 is applied, when the final area of sprinkler operation is less than 1500 sq ft? Answer: Yes Issue Edition: 2002 Reference: 11.2.3.1.8.1 (1) and 11.2.3.2.3.1 Issue Date: March 9, 2004 Effective Date: March 29, 2004 Reference: 17.3.4.1.4 F.I. No.: 13-02-2 Question No. 1: Are the dimensions in Figure 17.3.4.1.4 intended to be the only acceptable combination of rack height, clearance, flue space width, rack length and rack width? Answer: No Question No. 2: Are other situations not shown on the figure, such as double row racks with a width of 9 1/2 ft (4 ft loads with 6 inch longitudinal flue), a height other than 54 ft and a length greater than 24 ft allowed as long as they comply with the other rules of NFPA 13? Answer: Yes Issue Edition: 2002 Reference: 12.3.5.4.1.4 Issue Date: July 16, 2004 Effective Date: August 4, 2004 Reference: 22.4.4.8 F.I. No.: 13-02-3 Formal Interpretation Question No. 1: Can residential sprinklers of different orifice sizes be used within a compartment provided they have different directional discharge characteristics (i.e. pendent vs. sidewall)? Answer: Yes. Question No. 2: Can residential sprinklers of different orifice sizes be used within a compartment provided they have different thread sizes such that replacement cannot be confused? Answer: Yes. Question No. 3: Can residential sprinklers of different orifice sizes be used within a compartment without regard to discharge characteristics, thread sizes, or maximum protection areas? Answer: No. Issue Edition: 2002 Reference: 8.4.4.6 Issue Date: September 9, 2005 Effective Date: September 29, 2005 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ firesprinkler.org [http://r20.rs6.net/tn.jsp?e=001yqzRgWwuQ48D22tddJ3zkliq24bVRit9UoaPclU8-kknuhhXHT34A4fXA3KjIbxP6mAPuuPAnKoR-XiFesY-lB4Oki9KASCYMJtnS3v9SgM=] Hosted by the American Fire Sprinkler Association ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Technical Update is prepared by the Technical Services Dept. of the AFSA: Vice President of Engineering and Technical Services Roland Huggins, a PE registered in fire protection engineering; Phill Brown, a NICET IV certified automatic sprinkler technician and NFPA Certified Fire Protection Specialist (CFPS) and Tom Wellen, a PE registered in fire protection engineering. This is provided with the understanding that the AFSA assumes no liability for this opinion or actions taken on it and they are not to be considered the official position of the NFPA or its technical committees. Copyright 2014, American Fire Sprinkler Association. All Rights Reserved ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ PDF Version PDF Link [http://r20.rs6.net/tn.jsp?e=001yqzRgWwuQ48D22tddJ3zkliq24bVRit9UoaPclU8-kknuhhXHT34A4fXA3KjIbxPOdEVzvNe89I0ok53jVyIHoKVME57J42oI2rZR4UF_ZPmpGp0QHyurcjwjDk4_KgppRWkXljvpsUyEBGpzanh5hQnV16ypr5NdqM1YQJiKM_ti9f8oIPgNeLZPF7xaBC1RACHbMDjxvE=] ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Training Calendar AFSA Beginning Fire Sprinkler System Planning School Register for Sept. 8 - 19, 2014 July 14 - 25, 2014 SOLD OUT! Check our calendar to view upcoming training. 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