NFPA 58-2014 Liquefied Petroleum Gas Code (Effective Date 08 21 2013).pdf

1、NFPA58 Liquefied Petroleum Gas Code 2014 Edition NFPA, 1 Batterymarch Park, Quincy, MA 02169-7471 An International Codes and Standards Organization IMPORTANT NOTICES AND DISCLAIMERS CONCERNING NFPADOCUMENTSNOTICE AND DISCLAIMER OF LIABILITY CONCERNING THE USE OF NFPA DOCUMENTSNFPAcodes, standards, r

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28、cil, NFPA, 1 Batterymarch Park, P.O. Box 9101, Quincy, MA 02269-9101; email: stds_adminnfpa.orgFor more information about NFPA, visit the NFPA website at www.nfpa.org.12/11Copyright 2013 National Fire Protection Association. All Rights Reserved.NFPA58Liquefied Petroleum Gas Code2014 EditionThis edit

29、ion of NFPA 58, Liquefied Petroleum Gas Code, was prepared by the Technical Com-mittee on Liquefied Petroleum Gases and acted on by NFPA at its June Association TechnicalMeeting held June 1013, 2013, in Chicago, IL. It was issued by the Standards Council onAugust 1, 2013, with an effective date of A

30、ugust 21, 2013, and supersedes all previous editions.Tentative interim amendments (TIAs) to Paragraphs 6.12.9, 11.1.1 and its Annex A mate-rial, and 11.15.2 (relocated to Section 6.26) were issued on August 1, 2013. For further infor-mation on tentative interim amendments, see Section 5 of the NFPA

31、Regulations GoverningCommittee Projects available at: http:/www.nfpa.org/assets/files/PDF/CodesStandards/TIAErrataFI/TIARegs.pdf.This edition of NFPA 58 was approved as an American National Standard on August 21, 2013.Origin and Development of NFPA 58The first NFPA standard on LP-Gas was adopted in

32、1932. In 1940, several standards werecombined and adopted as NFPA 58.Revisions of NFPA 58 were adopted in 1934, 1937, 1939, 1940, 1943, 1946, 1948, 1950, 1951,1952, 1953, 1954, 1955, 1956, 1957, 1958, 1959, 1960, 1961, 1965, 1967, 1969, 1972, 1974, 1976,1979, 1983, 1986, 1989, 1992, 1995, 1998, 2001

33、, 2004, 2008, and 2011.The 2011 edition of NFPA 58 included several significant changes. The installation ofunderground LP-Gas storage containers required cathodic protection systems, and the sys-tems were required to be monitored to verify that they were provided protection. The require-ment that a

34、 pressure relief valve be piped vertically upward 7 ft from the valve was deletedbecause the committee could find no technical reason to justify it. Former railroad tank cartanks were no longer allowed to be installed as permanent storage containers because theywere not constructed to the ASME Boile

35、r and Pressure Vessel Code, and additional recommenda-tions for training were added to Annex A.The 2014 edition harmonizes container requirements for containers 4000 gal and lesswater capacity and greater than 4000 gal water capacity (wc). A bulk plant and an industrialplant are defined as facilitie

36、s storing more than 4000 gal wc, which is the reason for thedemarcation point of 4000 gal wc. A new definition was added for vehicular barrier protection(VBP). There are many installations where the container and valves are required to be pro-tected from vehicular impact, but no specific information

37、 was provided as to what constitutedsuch protection. A new definition to describe VBP is incorporated into the 2014 edition, alongwith extensive annex material. In addition, prescriptive requirements are added for VBP ofLP-Gas dispensers.Qualifications of personnel have been expanded for clarificati

38、on in Chapter 4. The require-ments, which originated as a Temporary Interim Amendment to the 2011 edition, specify whichpersonnel must be trained and what topics they must be trained in. New requirements are in-cluded covering tank heaters, and requirements for vaporizers have been updated.Finally,

39、the 2014 edition includes new requirements to provide cathodic protection forunderground metallic piping systems greater than 2 in. Previously, all underground metallicpiping was only required to be coated or painted. The new requirements for piping systemsare very similar to those for cathodic prot

40、ection of underground containers.581NFPA and National Fire Protection Association are registered trademarks of the National Fire Protection Association, Quincy, Massachusetts 02169.Technical Committee on Liquefied Petroleum GasesFrank J. Mortimer, ChairEMC Insurance Company, IA IRep. Property Casual

41、ty Insurers Association of AmericaDonald Barber, Enmat International (UK), UnitedKingdom SEJames C. Belke, U.S. Environmental Protection Agency,DC EPaul N. Bogan, Sea-3, Incorporated, NH UDavid T. Burnell, New Hampshire Public UtilitiesCommission, NH ERep. U.S. Department of TransportationSharon E.

42、Coates, State of Arkansas, AR EAlberto Jose Fossa, MDJ, Assessoria truck transportation of liquefied pe-troleum gas; engine fuel systems on motor vehicles and other mobile equipment; storage of containers awaitinguse or resale; installation on commercial vehicles; and liquefied petroleum gas service

43、 stations.583COMMITTEE PERSONNEL2014 EditionContentsChapter 1 Administration . 5871.1 Scope . 5871.2 Purpose (Reserved) . 5871.3 Application 5871.4 Retroactivity . 5871.5 Equivalency 5871.6 Units and Formulas (Reserved) 5881.7 Enforcement 588Chapter 2 Referenced Publications . 5882.1 General . 5882.

44、2 NFPA Publications . 5882.3 Other Publications 5882.4 References for Extracts in MandatorySections 589Chapter 3 Definitions 5893.1 General . 5893.2 NFPA Official Definitions 5893.3 General Definitions . 589Chapter 4 General Requirements . 58134.1 Acceptance of Equipment andSystems . 58134.2 LP-Gas

45、Odorization . 58134.3 Notification of Installations . 58134.4 Qualification of Personnel . 58144.5 Ammonia Contamination 58144.6 Minimum Requirements . 5814Chapter 5 LP-Gas Equipment and Appliances . 58145.1 Scope . 58145.2 Containers . 58145.3 Reserved . 58175.4 Reserved . 58175.5 Reserved . 58175.

46、6 Reserved . 58175.7 Container Appurtenances andRegulators . 58175.8 Regulators and Regulator Vents 58245.9 Piping (Including Hose), Fittings, andValves . 58255.10 Reserved . 58265.11 Internal Valves (Reserved) . 58265.12 Valves Other Than Container Valves . 58265.13 Hydrostatic Relief Valves . 5827

47、5.14 Reserved . 58275.15 Reserved . 58275.16 Reserved . 58275.17 Equipment 58275.18 Reserved . 58285.19 Reserved . 58285.20 Appliances . 58285.21 Vaporizers, Tank Heaters, VaporizingBurners, and GasAir Mixers 58295.22 Vehicle Fuel Dispensers 5831Chapter 6 Installation of LP-Gas Systems . 58316.1 Sco

48、pe . 58316.2 Location of Containers . 58316.3 Container Separation Distances 58316.4 Other Container LocationRequirements . 58336.5 Location of Transfer Operations . 58346.6 Installation of Containers 58356.7 Installation of ContainerAppurtenances . 58386.8 Regulators . 58396.9 Piping Systems 58406.

49、10 Remote Shutoff Actuation . 58426.11 Internal Valves 58426.12 Emergency Shutoff Valves 58436.13 Hydrostatic Relief Valve Installation . 58436.14 Testing New or Modified PipingSystems . 58436.15 Leak Check for Vapor Systems 58436.16 Installation in Areas of HeavySnowfall 58446.17 Corrosion Protection . 58446.18 Equipment Installation . 58446.19 Bulk Plant and Industrial Plant LP-GasSystems . 58456.20 LP-Gas Systems in Buildings or onBuilding Roofs or ExteriorBalconies . 58466.21 Installation of A