NFPA 14-2016 en Standard for the Installation of Standpipe and Hose Systems (Effective Date 12 04 2015).pdf

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29、out NFPA, visit the NFPA website at www.nfpa.org. All NFPA codes and standards can be viewed at no cost at www.nfpa.org/freeaccess.14-1 NFPA and National Fire Protection Association are registered trademarks of the National Fire Protection Association, Quincy, Massachusetts 02169. Copyright 2015 Nat

30、ional Fire Protection Association . All Rights Reserved. NFPA 14 Standard for the Installation of Standpipe and Hose Systems 2016 Edition This edition of NFPA 14, Standard for the Installation of Standpipe and Hose Systems, was prepared by the Committee on Standpipes. It was issued by the Standards

31、Council on November 14, 2015, with an effective date of December 4, 2015, and supersedes all previous editions. This edition of NFPA 14 was approved as an American National Standard on December 4, 2015. Origin and Development of NFPA 14 This standard dates from 1912, when an initial report was made

32、by the Committee on Standpipe and Hose Systems. The report was amended in 1914 and adopted by the Association in 1915. Revisions were adopted in 1917. Additional revisions were submitted by the Committee on Field Practice and adopted in 1926, 1927, 1931, 1938 (included action by the NFPA Board of Di

33、rectors), 1941, and 1945. The Committee on Standpipes recommended revisions adopted in 1949, 1952, 1963, 1968, 1969, 1970, 1971, 1973, 1974, 1976, 1978, 1980, 1982, 1985, and 1990. The 1993 edition of NFPA 14 was a complete reorganization of the document. The “user friendliness” of NFPA 14 was evalu

34、ated, and numerous changes followed. The standard was arranged to provide for a logical system approach for the design and installation of a standpipe system. Substantive changes to the 1993 edition were the result of experience with standpipe systems under re conditions. Flow rates, pressures, and

35、the specic location of the hose connections were studied to determine optimum combinations for each factor. The 1996 edition of NFPA 14 was a continuation of the changes that had been initiated for the 1993 edition. Some denitions were expanded, and certain requirements for piping materials, pipe su

36、pport, waterow alarms, valves, re department connections, system testing, and water supplies were revised. In addition, a number of editorial changes were made to improve the user friendliness of the document. The 2000 edition of NFPA 14 incorporated requirements for hydrants, hose houses, and maste

37、r streams previously contained in NFPA 24, Standard for the Installation of Private Fire Service Mains and Their Appurtenances. Also included in this revision were test procedures for re ow testing and marking of hydrants previously contained in NFPA 291, Recommended Practice for Fire Flow Testing a

38、nd Marking of Hydrants. The 2003 edition was reformatted to conform to the Manual of Style for NFPA Technical Committee Documents, 2000 edition. Hydraulic calculation requirements were rewritten for clarication, and requirements for horizontal standpipes were added. Guidance for hydrants, hose house

39、s, and master streams were deleted as this information was retained by NFPA 13, Standard for the Installation of Sprinkler Systems, and NFPA 24, Standard for the Installation of Private Fire Service Mains and Their Appurtenances. Similarly, test procedures for re ow testing and marking of hydrants w

40、ere returned to NFPA 291, Recommended Practice for Fire Flow Testing and Marking of Hydrants; for that reason, “private hydrant” was removed from the title of NFPA 14. The 2007 edition included guidance on the use of pressure-regulating devices and roof outlets for standpipe systems. Related informa

41、tion was extracted from NFPA 13, Standard for the Installation of Sprinkler Systems, to assist the user in applications involving combined sprinkler/standpipe systems. The 2010 edition permitted express mains supplying higher zone standpipes to be designed with pressures in excess of 350 psi (24 bar

42、). The requirements for standpipe system zones were extensively revised for clarication. The requirements for pipe schedule design were deleted, and all standpipe systems were required to be hydraulically calculated. The requirements to balance hydraulic junctionINSTALLATION OF STANDPIPE AND HOSE SY

43、STEMS 14-2 2016 Edition points were deleted. New requirements were added to address standpipe systems risers that terminate at different oor levels. A new denition for horizontal standpipe was added. The 2013 edition revised clearance requirements around hose valve handles where hose valves are loca

44、ted within cabinets and where adjacent to objects. Travel distance, as it applies to this standard, was dened. The term horizontal standpipe was added to the requirement for pipe protection. Heat tracing requirements were claried, along with added requirements for the pitching of pipe used in a dry

45、system. The valve and drain requirements were extensively revised, providing greater guidance and clarication. New criteria and a new gure regarding horizontal exists also were added. In the 2016 edition, in Chapter 6, protection of aboveground pipe has been revised to clarify under what building co

46、nstruction and what building type standpipe system piping needs to be protected. As a result of that revision, new denitions of construction types have been added to Chapter 3. The horizontal exit requirements in Chapter 7 have been revised in an effort to align with building code requirements, and

47、new annex gures have been added. Subsection 7.3.2, Class I Systems, has been revised and reorganized in its entirety. Revisions also have been made to Section 7.6 clarifying that only partially sprinklered buildings require 6 in. standpipes, while all others, if in a fully sprinklered building, whet

48、her combined or not, require only 4 in. standpipes, where supported by hydraulic calculations. The requirement for pressure gauges has been revised to no longer require that gauges be listed, only approved.COMMITTEE PERSONNEL 14-3 2016 Edition Technical Committee on Standpipes David R. Hague, Chair

49、Liberty Mutual Insurance, MA I Cecil Bilbo, Jr., Academy of Fire Sprinkler Technology, Inc., IL SE Marinus Both, Western States Fire Protection Company, NV IM Randal G. Brown, JENSEN HUGHES/Randal Brown & Associates Engineering Ltd., Canada SE Brian G. Conway, Great Lakes Plumbing & Heating Company, IL IM Rep. Illinois Fire Prevention Association James Dockrill, J&S Fire Sprinkler Design & Consulting, Canada IM Rep. Canadian Automatic Sprinkler Association Jeff Hebenstreit, UL LLC, IL RT Andrew M. Henning, CAL FIRE, Ofce of the State