NFPA 20-2016 Standard for the Installation of Stationary Pumps for Fire Protection (Effective Date 06 15 2015).pdf

1、NFPA 20 Standard for the Installation of Stationary Pumps for Fire Protection 2016 Edition NFPA, 1 Batterymarch Park, Quincy, MA 02169-7471 An International Codes and Standards OrganizationIMPORTANT NOTICES AND DISCLAIMERS CONCERNING NFPA DOCUMENTS NOTICE AND DISCLAIMER OF LIABILITY CONCERNING THE U

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29、tandards can be viewed at no cost at www.nfpa.org/freeaccess.20-1 NFPA and National Fire Protection Association are registered trademarks of the National Fire Protection Association, Quincy, Massachusetts 02169. Copyright 2015 National Fire Protection Association . All Rights Reserved. NFPA 20 Stand

30、ard for the Installation of Stationary Pumps for Fire Protection 2016 Edition This edition of NFPA 20, Standard for the Installation of Stationary Pumps for Fire Protection, was prepared by the Technical Committee on Fire Pumps. It was issued by the Standards Council on May 26, 2015, with an effecti

31、ve date of June 15, 2015, and supersedes all previous editions. This edition of NFPA 20 was approved as an American National Standard on June 15, 2015. Origin and Development of NFPA 20 The rst National Fire Protection Association standard for automatic sprinklers was published in 1896 and contained

32、 paragraphs on steam and rotary re pumps. The Committee on Fire Pumps was organized in 1899 with ve members from underwriter associations. Modern committee membership has included representatives of Underwriters Laboratories of both the United States and Canada, Insurance Services Ofce, Factory Mutu

33、al, Industrial Risk Insurers, national trade associations, state governments, engineering organizations, and private individuals. Early re pumps were only secondary supplies for sprinklers, standpipes, and hydrants and were started manually. Today, re pumps have greatly increased in number and in ap

34、plications many are the major or only water supply, and almost all are started automatically. Early pumps usually took suction by lift from standing or owing water supplies because the famed National Standard Steam Fire Pump and rotary types suited that service. Ascendancy of the centrifugal pump re

35、sulted in positive head supply to horizontal shaft pumps from public water supplies and aboveground tanks. Later, vertical shaft turbinetype pumps were lowered into wells or into wet pits supplied from ponds or other belowground sources of water. Gasoline enginedriven pumps rst appeared in this stan

36、dard in 1913. From an early status of relative unreliability and of supplementary use only, rst spark-ignited gasoline engines and then compression ignition diesels have steadily developed engine-driven pumps to a place alongside electric-driven units for total reliability. Fire protection now calls

37、 for larger pumps, higher pressures, and more varied units for a wide range of systems protecting both life and property. Hydraulically calculated and designed sprinkler and special re protection systems have changed concepts of water supply completely. Since the formation of this Committee, each ed

38、ition of NFPA 20 has incorporated appropriate provisions to cover new developments and has omitted obsolete provisions. NFPA action on successive editions has been taken in the following years: 1907, 19101913, 1915, 19181921, 1923 1929, 19311933, 1937, 1939, 1943, 1944, 19461948, 1951, 1953, 1955, 1

39、957, 19591972, 1974, 1976, 1978, 1980, 1983, 1987, 1990, 1993, 1996, 1999, 2003, and 2007. The 1990 edition included several amendments with regard to some of the key components associated with electric-driven re pumps. In addition, amendments were made to allow the document to conform more closely

40、to the NFPA Manual of Style. The 1993 edition included signicant revisions to Chapters 6 and 7 with regard to the arrangement of the power supply to electric-driven re pumps. These clarications were intended to provide the necessary requirements to make the system as reliable as possible. The 1996 e

41、dition continued the changes initiated in the 1993 edition, and Chapters 6 and 7, which addressed electric drives and controllers, underwent signicant revision. New information was also added regarding engine-cooling provisions, earthquake protection, and backow preventers. Chapter 5, which addresse

42、d provisions for high-rise buildings, was removed, as were capacityINSTALLATION OF STATIONARY PUMPS FOR FIRE PROTECTION 20-2 2016 Edition limitations on in-line and end suction pumps. Additionally, provisions regarding suction pipe ttings were updated. The 1999 edition of the standard included requi

43、rements for positive displacement pumps for both water mist and foam systems. The document title was revised to reect this change, since the 1999 edition addressed requirements for pumps other than centrifugal. Enforceable language was added, particularly regarding protection of equipment. Revisions

44、 for the 2003 edition included updating the document to conform with the latest edition of the Manual of Style for NFPA Technical Committee Documents. Provisions were also added to address the use of re pump drivers using variable speed pressure limiting control. Acceptance test criteria were added

45、to the document for replacement of critical path components of a re pump installation. For the 2007 edition, requirements for variable speed drives were rened, requirements for break tanks were added, and component replacement testing tables were included. The 2010 edition included a new chapter on

46、re pumps for high-rise buildings. Requirements for pumps arranged in series were also added to the general requirements chapter. Chapter 11 of the standard was reorganized. The 2013 edition claried and added new requirements for water mist positive displacement pumping units. Chapter 5 of the standa

47、rd was reorganized. Limited service controller requirements were revised, and the component replacement table was removed. The 2016 edition of NFPA 20 provides new requirements for pumps in series relative to protection of control wiring, status signals, and communications. NFPA 20 recognizes the po

48、tential use of multistage, multiport pumps in re suppression systems and provides requirements specic to that application. Break tank criteria have been removed and are now in accordance with NFPA 22, Standard for Water Tanks for Private Fire Protection. A new annex, Annex C, has been added to provi

49、de guidance on controller security where a controller is connected to the Internet. New requirements have been added to address use of an automatic fuel maintenance system with a diesel re pump installation. In addition, protection criteria for both a diesel re pump room and an electric re pump room are dened in Chapter 4.COMMITTEE PERSONNEL 20-3 2016 Edition Technical Committee on Fire Pumps Gayle Pennel, Chair Aon Fire Protection Engineering, IL I R. T. Leicht, Secretary State of Delaware, DE E Rep. International Fire Marsh