NFPA 52H-2013 Vehicular Gaseous Fuel Systems Code Handbook (Effective Date 12 17 2012).pdf

1、NFPA52Vehicular Gaseous Fuel Systems Code Handbook 201352NFPA,1 Batterymarch Park, Quincy, MA 02169-7471, USAAn International Codes and Standards OrganizationNFPA, 1 Batterymarch Park, Quincy, MA 02169-7471An International Codes and Standards OrganizationNFPA52Annotated by Susan BershadVehicular Gas

2、eousFuel Systems CodeHandbook 2013Copyright 2013National Fire Protection AssociationOne Batterymarch Park Quincy, Massachusetts 02169-7471 All rights reserved. About this Handbook EditionThis PDF contains the complete 2013 edition of NFPA 52, Vehicular Gaseous Fuel Systems Code, annotated to assist

3、the readers understanding of the standards language and the intent behind it. The annotations are not part of the NFPA Standard but provide a valuable commentary re-flecting the views, explanations, and insights of authors and contributors selected by the NFPA based on their knowledge of and experie

4、nce with the standard.How to Navigate Between the Text of the Standard and the AnnotationsNavigate between code or standard text and annotations by using hyperlinked icons and code numbers.While in code or standard text, click on hyperlinked icon* to the left of the standard sec-tion to navigate to

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6、crobats page navigation menu, which will also allow you to return to the previous stan-dard section.How to Ensure You Have the Most Up-to-Date Version of the NFPA StandardThe NFPA Standard, in the edition contained herein, is current as of the effective date des-ignated at the time the standard was

7、issued 2013. This (ANDBOOK Edition does not, however, include errata, tentative interim amendments (TIAs), or formal interpretations (FIs) that may have been issued after the effective date. For all errata, TIAs, or FIs that may have been issued since the effective date, or for any new editions that

8、 may have superseded this edition, please visit the “Document Information pages” link for the relevant NFPA Standard located in the “Codes email: stds_adminnfpa.org. For more information about NFPA, visit the NFPA website at www.nfpa.org.IMPORTANT NOTICES AND DISCLAIMERS CONCERNING THE HANDBOOK EDIT

9、IONNotice and Disclaimer Concerning LiabilityNotice Concerning Interpretations Contained in the AnnotationsISBN: 978-1455906857Publication of this (ANDBOOKEdition is for the purpose of circulating information and opinion among those concerned for fire and electrical safety and related subjects. Whil

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13、FPA codes, standards, recommended practices, and guides (“NFPA Documents”), includ-ing the NFPA Document that is the subject of this (ANDBOOKEdition, are made available for usesubject to Important Notices and Disclaimers Concerning NFPA Documents, which are sepa-rately bookmarked and viewable in thi

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15、chnical committees comprised of volunteers drawn from a broad array of relevant interests. In this (ANDBOOKEdition the text of the NFPA Document is accompanied with annotations providing explanation and commentary on the meaning and intent of the Document. The annotations contained in this (ANDBOOK

16、Edition are not a part of the NFPA Document and do not constitute Formal Interpretations of the NFPA (which can be obtained only through requests processed by the responsible technical committees in accordance with the published procedures of the NFPA). The annotations, therefore, solely reflect the

17、 personal opinions of the author or other contributors and do not necessarily represent the official position of the NFPA or its technical committees.Copyright 2013 National Fire Protection Association. All Rights Reserved.NFPA52Vehicular Gaseous Fuel Systems Code2013 EditionThis edition of NFPA 52,

18、 Vehicular Gaseous Fuel Systems Code, was prepared by the TechnicalCommittee on Vehicular Alternative Fuel Systems. It was issued by the Standards Council onNovember 27, 2012, with an effective date of December 17, 2012, and supersedes all previouseditions.This edition of NFPA 52 was approved as an

19、American National Standard on December 17,2012.Origin and Development of NFPA 52While compressed natural gas (CNG) vehicles have been used extensively in other coun-tries since the late 1940s, it was not until the late 1970s that their use in the United Statesbecame extensive enough to warrant prepa

20、ration of a national standard.Between 1980 and 1982, a committee of the American Gas Association (AGA) developed adraft of a fire safety standard for vehicular fuel systems. This was based on existing worldwidestandards and current U.S. practice.In late 1981, the AGA petitioned the NFPA to establish

21、 a technical committee project onthe subject. The normal NFPA solicitation of comments revealed sufficient response fromvarious interested parties, and the Committee on Compressed Natural Gas Vehicular FuelSystems was established by the Standards Council in July 1982.The first edition of NFPA 52 was

22、 issued in 1984, and it was revised in 1988, 1992, 1995, and1998.The 2002 edition of NFPA 52 contained minor revisions, most of these in the chapter onengine fuel systems. There also were some changes made to comply with the Manual of Style forNFPA Technical Committee Documents. The most significant

23、 of these were reordering of chaptersand numbering of definitions.The 2006 edition of NFPA 52 was a complete revision. NFPA 57, LNG Vehicular Fuel SystemsCode, was incorporated into NFPA 52. Additionally, the scope of the committee was expandedto include hydrogen, and new chapters were added that ad

24、dressed general gaseous hydrogenrequirements and equipment qualifications; service and maintenance of gaseous hydrogenengine fuel systems; gaseous hydrogen compression, gas processing, storage, and dispensingsystems; and liquefied hydrogen fueling facilities.The 2010 edition of NFPA 52 revised the c

25、ommittee scope so that it better coordinatedwith the responsibilities of NFPA 55, Compressed Gases and Cryogenic Fluids Code, with regard tohydrogen storage systems. A large number of changes were also made to the chapters con-cerning hydrogen, to update to current material in NFPA documents, the Ma

26、nual of Style forNFPA Technical Committee Documents, and acceptable performance criteria.Paragraphs extracted from NFPA 55 were shown with the extract reference in brackets at the end of the paragraph. In some cases, modifications were made to the extracted text touse terminology appropriate for thi

27、s standard, such as the term cryogenic fluid instead ofcompressed gas. In those instances, brackets encase the modified terms.The 2013 edition removes the requirements for hydrogen systems, the responsibility forwhich has been transferred to NFPA 2, Hydrogen Technologies Code. A chapter on general f

28、uelingrequirements has been added, and changes have been made to the onboard gas detectionrequirements for LNG-fueled vehicles. The installation requirements for ASME Tanks forLNG have been updated to coordinate with NFPA 59A, Standard for the Production, Storage, andHandling of Liquefied Natural Ga

29、s (LNG).521NFPA and National Fire Protection Association are registered trademarks of the National Fire Protection Association, Quincy, Massachusetts 02169.Technical Committee on Vehicular Alternative Fuel SystemsNancy C. Pehrson, ChairCenterPoint Energy, Inc., MN URonald C. Adcock, Marsh Risk Consu

30、lting, AZ IEugene Bushmelov, Hydrogen Safety LLC, MA SESteven Dallman, U.S. Department of Transportation,OK SEDavid J. Farese, Air Products and Chemicals, Inc., PA MLarry L. Fluer, Fluer, Inc., CA IMRep. Compressed Gas AssociationThomas J. Forsythe, Hughes Associates, Inc., CA SEKaren I. Hall, Fuel

31、Cell with the Committees on Industrial Trucks,Fire Safety for Recreational Vehicles, and Marine Fire Protection with respect to engine fuel systems andrefueling stations within their scopes; and the Liquefied Natural Gas Committee with respect to storage ofLNG within its scope.522 VEHICULAR GASEOUS

32、FUEL SYSTEMS CODE2013 EditionContentsChapter 1 Administration . 5251.1 Scope . 5251.2 Purpose 5251.3 Retroactivity 5251.4 Alternate Provisions . 5251.5 Units 5261.6 Enforcement 5261.7 Training . 526Chapter 2 Referenced Publications 5262.1 General 5262.2 NFPA Publications . 5262.3 Other Publications

33、5262.4 References for Extracts in MandatorySections 527Chapter 3 Definitions 5273.1 General 5273.2 NFPA Official Definitions 5273.3 General Definitions . 528Chapter 4 General Fueling StationRequirements 52104.1 Installer Qualifications . 52104.2 Installation Supervision 52114.3 Alternate Design . 52

34、114.4 Installation Validation 52114.5 Building Construction Materials . 5211Chapter 5 General CNG Requirements andEquipment Qualifications . 52115.1 Application 52115.2 Composition 52115.3 System Approvals 52125.4 Design and Construction ofContainers 52125.5 Pressure Relief Devices (PRDs) 52125.6 Pr

35、essure Gauges . 52135.7 Pressure Regulators . 52135.8 Fuel Lines . 52135.9 Valves . 52135.10 Hose and Hose Connections . 52135.11 Vehicle Fueling Connection 5214Chapter 6 CNG Engine Fuel Systems 52146.1 Application . 52146.2 System Component Qualifications 52146.3 Installation of Fuel Supply Contain

36、ers . 52146.4 Installation of Venting Systems . 52156.5 Installation of Piping . 52156.6 Installation of Valves 52166.7 Installation of Pressure Gauges 52166.8 Installation of Pressure Regulators 52166.9 Installation of Fueling Connection 52166.10 Wiring Installation 52176.11 Labeling . 52176.12 Sys

37、tem Testing 52176.13 System Maintenance and Repair . 52176.14 Discharge from Vehicle Containers . 5218Chapter 7 CNG Compression, Gas Processing,Storage, and Dispensing Systems 52187.1 Application . 52187.2 System Component Qualifications 52187.3 General System Requirements . 52187.4 System Siting .

38、52197.5 Installation of Containers andContainer Appurtenances (Otherthan Pressure Relief Devices) . 52207.6 Installation of Pressure Relief Devices 52217.7 Installation of Pressure Regulators 52217.8 Installation of Pressure Gauges 52217.9 Installation of Piping and Hoses . 52217.10 System Testing 5

39、2217.11 Installation of Emergency ShutdownEquipment 52227.12 Installation of Electrical Equipment 52227.13 Stray or Impressed Currents andBonding . 52227.14 System Operation . 52227.15 Fire Protection . 52237.16 System Maintenance 52237.17 Vehicle Fueling Appliances inNonresidential Occupancies 5223

40、Chapter 8 CNG Residential Fueling Facilities(RFF-CNGs) 52248.1 Application . 52248.2 System Component Qualifications 52248.3 General Safety Requirements . 52248.4 Installation 52248.5 Installation of PRVs . 52248.6 Installation of Pressure Gauges 52248.7 Pressure Regulation . 52258.8 Piping and Hose

41、 . 52258.9 Testing . 52258.10 Installation of Emergency ShutdownEquipment 52258.11 Operation . 52258.12 Maintenance and Inspection . 5225Chapter 9 LNG Engine Fuel Systems 52259.1 Application . 52259.2 Materials . 52259.3 Vehicular Fuel Containers . 52269.4 Pressure Relief Devices . 52269.5 Pressure

42、Gauges . 52279.6 Pressure Regulators . 5227523CONTENTS2013 Edition9.7 Piping, Tubing, and Fittings 52279.8 Valves . 52279.9 Pumps and Compressors 52279.10 Vaporizers . 52279.11 Component Qualification . 52279.12 Installation 52289.13 System Testing 5230Chapter 10 LNG Fueling Facilities 523010.1 Appl

43、ication . 523010.2 Facility Design 523110.3 Cargo Transport Unloading 523310.4 Vehicle Fuel Dispensing Systems . 523310.5 Piping Systems and Components 523410.6 Safety and Relief Valves 523410.7 Corrosion Control . 523410.8 Stationary Pumps and Compressors 523410.9 Vaporizers . 523510.10 LNG-to-CNG

44、(L/CNG) Systems . 523510.11 Instrumentation . 523510.12 Electrical Equipment . 523510.13 Maintenance 5236Chapter 11 Reserved . 5236Chapter 12 LNG Fire Protection 523612.1 Application . 523612.2 Fire Protection, Safety, and Security 523612.3 Ignition Source Control . 523712.4 Personnel Safety and Tra

45、ining . 523712.5 Security 523712.6 Hazard Detection 523712.7 Parking of LNG Vehicles . 523712.8 Warning Signs 5237Chapter 13 Installation Requirements forASME Tanks for LNG 523713.1 Application . 523713.2 General 523713.3 Containers 523713.4 Container Foundations and Supports 523813.5 Container Inst

46、allation 523913.6 Automatic Product Retention Valves 523913.7 Inspection . 524013.8 Testing and Purging of LNGContainers 524013.9 Piping 524013.10 Container Instrumentation . 524113.11 Pressure Gauging and Control . 5241Chapter 14 LNG and CNG on CommercialMarine Vessels and PleasureCraft 524114.1 Ap

47、plication . 524114.2 Installation of Fuel Supply Containers . 524114.3 Installation of Pressure Gauges 524214.4 Labeling . 524214.5 Operation . 524214.6 Fire Protection for Vessels . 524214.7 Installation of Powered Ventilation . 524214.8 Fueling Systems 524314.9 Storage and Handling of Fuels . 5243

48、14.10 Marine Service Stations 524314.11 Engine Rooms or Compartments 524314.12 Tank Rooms or Compartments 524514.13 Vent Masts . 524514.14 Deluge Systems . 524614.15 Alarm Systems 524614.16 Safety Equipment 524614.17 Safety Training . 5246Chapter 15 Reserved . 5246Chapter 16 Reserved . 5246Chapter 17 Reserved . 5246Chapter 18 Reserved . 5246Annex A Explanatory Material . 5247Annex B Sample Ordinance Adopting NFPA 52 . 5252Annex C Pressure Relief Devices (PRDs) . 5253Annex D Informational References 5253Index . 5255524 VEHICULAR GASEOUS FUEL SYSTEMS CODE2013 EditionNFPA 52Vehicular Gase