1、 NFPA 52 Vehicular Natural Gas Fuel Systems Code 2016 See ALERTISBN: 978-145591298-8 (Print) ISBN: 978-145591321-3 (PDF) IMPORTANT NOTICES AND DISCLAIMERS CONCERNING NFPA STANDARDS NOTICE AND DISCLAIMER OF LIABILITY CONCERNING THE USE OF NFPA STANDARDS NFPA codes, standards, recommended practices, a
2、nd guides (“NFPA Standards”), of which the document contained herein is one, are developed through a consensus standards development process approved by the American National Standards Institute. This process brings together volunteers representing varied viewpoints and interests to achieve consensu
3、s on fire and other safety issues. While the NFPA administers the process and establishes rules to promote fairness in the development of consensus, it does not independently test, evaluate, or verify the accuracy of any information or the soundness of any judgments contained in NFPA Standards. The
4、NFPA disclaims liability for any personal injury, property or other damages of any nature whatsoever, whether special, indirect, consequential or compensatory, directly or indirectly resulting from the publication, use of, or reliance on NFPA Standards. The NFPA also makes no guaranty or warranty as
5、 to the accuracy or completeness of any information published herein. In issuing and making NFPA Standards available, the NFPA is not undertaking to render professional or other services for or on behalf of any person or entity. Nor is the NFPA undertaking to perform any duty owed by any person or e
6、ntity to someone else. Anyone using this document should rely on his or her own independent judgment or, as appropriate, seek the advice of a competent professional in determining the exercise of reasonable care in any given circumstances. The NFPA has no power, nor does it undertake, to police or e
7、nforce compliance with the contents of NFPA Standards. Nor does the NFPA list, certify, test, or inspect products, designs, or installations for compliance with this document. Any certification or other statement of compliance with the requirements of this document shall not be attributable to the N
8、FPA and is solely the responsibility of the certifier or maker of the statement. Important Notices and Disclaimers continued on inside back cover. ALERT: THIS STANDARD HAS BEEN MODIFIED BY A TIA OR ERRATA Users of NFPA codes, standards, recommended practices, and guides (“NFPA Standards”) should be
9、aware that NFPA Standards may be amended from time to time through the issuance of Tentative Interim Amendments or corrected by Errata. An official NFPA Standard at any point in time consists of the current edition of the document together with any Tentative Interim Amendment and any Errata then in
10、effect. In order to determine whether an NFPA Standard has been amended through the issuance of Tentative Interim Amendments or corrected by Errata, visit the Document Information Pages on NFPAs website. The Document Information Pages provide up-to-date, document specific information including any i
11、ssued Tentative Interim Amendments and Errata. To access the Document Information Page for a specific NFPA Standard, go to http:/www.nfpa.org/docinfo to choose from the list of NFPA Standards or use the search feature on the right to select the NFPA Standard number (e.g., NFPA 101). The Document Inf
12、ormation page includes postings of all existing Tentative Interim Amendments and Errata. It also includes the option to register for an “Alert” feature to receive an automatic email notification when new updates and other information are posted regarding the document. See ALERTIMPORTANT NOTICES AND
13、DISCLAIMERS CONCERNING NFPA STANDARDS ADDITIONAL NOTICES AND DISCLAIMERS Updating of NFPA Standards Users of NFPA codes, standards, recommended practices, and guides (“NFPA Standards”) should be aware that these documents may be superseded at any time by the issuance of new editions or may be amende
14、d from time to time through the issuance of Tentative Interim Amendments or corrected by Errata. An ofcial NFPA Standard at any point in time consists of the current edition of the document together with any Tentative Interim Amendments and any Errata then in effect. In order to determine whether a
15、given document is the current edition and whether it has been amended through the issuance of Tentative Interim Amendments or corrected through the issuance of Errata, consult appropriate NFPA publications such as the National Fire Codes Subscription Service, visit the NFPA website at www.nfpa.org,
16、or contact the NFPA at the address listed below. Interpretations of NFPA Standards A statement, written or oral, that is not processed in accordance with Section 6 of the Regulations Governing the Development of NFPA Standards shall not be considered the ofcial position of NFPA or any of its Committ
17、ees and shall not be considered to be, nor be relied upon as, a Formal Interpretation. Patents The NFPA does not take any position with respect to the validity of any patent rights referenced in, related to, or asserted in connection with an NFPA Standard. The users of NFPA Standards bear the sole r
18、esponsibility for determining the validity of any such patent rights, as well as the risk of infringement of such rights, and the NFPA disclaims liability for the infringement of any patent resulting from the use of or reliance on NFPA Standards. NFPA adheres to the policy of the American National S
19、tandards Institute (ANSI) regarding the inclusion of patents in American National Standards (“the ANSI Patent Policy”), and hereby gives the following notice pursuant to that policy: NOTICE: The users attention is called to the possibility that compliance with an NFPA Standard may require use of an
20、invention covered by patent rights. NFPA takes no position as to the validity of any such patent rights or as to whether such patent rights constitute or include essential patent claims under the ANSI Patent Policy. If, in connection with the ANSI Patent Policy, a patent holder has led a statement o
21、f willingness to grant licenses under these rights on reasonable and nondiscriminatory terms and conditions to applicants desiring to obtain such a license, copies of such led statements can be obtained, on request, from NFPA. For further information, contact the NFPA at the address listed below. La
22、w and Regulations Users of NFPA Standards should consult applicable federal, state, and local laws and regulations. NFPA does not, by the publication of its codes, standards, recommended practices, and guides, intend to urge action that is not in compliance with applicable laws, and these documents
23、may not be construed as doing so. Copyrights NFPA Standards are copyrighted. They are made available for a wide variety of both public and private uses. These include both use, by reference, in laws and regulations, and use in private self-regulation, standardization, and the promotion of safe pract
24、ices and methods. By making these documents available for use and adoption by public authorities and private users, the NFPA does not waive any rights in copyright to these documents. Use of NFPA Standards for regulatory purposes should be accomplished through adoption by reference. The term “adopti
25、on by reference” means the citing of title, edition, and publishing information only. Any deletions, additions, and changes desired by the adopting authority should be noted separately in the adopting instrument. In order to assist NFPA in following the uses made of its documents, adopting authoriti
26、es are requested to notify the NFPA (Attention: Secretary, Standards Council) in writing of such use. For technical assistance and questions concerning adoption of NFPA Standards, contact NFPA at the address below. For Further Information All questions or other communications relating to NFPA Standa
27、rds and all requests for information on NFPA procedures governing its codes and standards development process, including information on the procedures for requesting Formal Interpretations, for proposing Tentative Interim Amendments, and for proposing revisions to NFPA standards during regular revis
28、ion cycles, should be sent to NFPA headquarters, addressed to the attention of the Secretary, Standards Council, NFPA, 1 Batterymarch Park, P.O. Box 9101, Quincy, MA 02269-9101; email: stds_adminnfpa.org For more information about NFPA, visit the NFPA website at www.nfpa.org. All NFPA codes and stan
29、dards can be viewed at no cost at www.nfpa.org/freeaccess.52-1 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 52 Vehicula
30、r Natural Gas Fuel Systems Code 2016 Edition This edition of NFPA 52, Vehicular Natural Gas Fuel Systems Code, was prepared by the Technical Committee on Vehicular Alternative Fuel Systems. It was issued by the Standards Council on April 6, 2016, with an effective date of April 26, 2016, and superse
31、des all previous editions. This edition of NFPA 52 was approved as an American National Standard on April 26, 2016. Origin and Development of NFPA 52 While compressed natural gas (CNG) vehicles have been used extensively in other countries since the late 1940s, it was not until the late 1970s that t
32、heir use in the United States became extensive enough to warrant preparation of a national standard. Between 1980 and 1982, a committee of the American Gas Association (AGA) developed a draft of a re safety standard for vehicular fuel systems. This was based on existing worldwide standards and curre
33、nt U.S. practice. In late 1981, the AGA petitioned the NFPA to establish a technical committee project on the subject. The normal NFPA solicitation of comments revealed sufcient response from various interested parties, and the Committee on Compressed Natural Gas Vehicular Fuel Systems was establish
34、ed by the Standards Council in July 1982. The rst edition of NFPA 52, Standard for Compressed Natural Gas (CNG) Vehicular Fuel Systems, was issued in 1984, and it was revised in 1988, 1992, 1995, and 1998. The 2002 edition of NFPA 52 contained minor revisions, most of these in the chapter on engine
35、fuel systems. There also were some changes made to comply with the NFPA Manual of Style for technical committee documents. The most signicant of these were reordering of chapters and numbering of denitions. The 2006 edition of NFPA 52 was a complete revision. NFPA 57, LNG Vehicular Fuel Systems Code
36、, was incorporated into NFPA 52. Additionally, the scope of the committee was expanded to include hydrogen, and new chapters were added that addressed general gaseous hydrogen requirements and equipment qualications; service and maintenance of gaseous hydrogen engine fuel systems; gaseous hydrogen c
37、ompression, gas processing, storage, and dispensing systems; and liqueed hydrogen fueling facilities. The 2010 edition of NFPA 52 revised the committee scope so that it better coordinated with the responsibilities of NFPA 55, Compressed Gases and Cryogenic Fluids Code, with regard to hydrogen storag
38、e systems. A large number of changes were also made to the chapters concerning hydrogen, to update to current material in NFPA documents, the Manual of Style for NFPA Technical Committee Documents, and acceptable performance criteria. Paragraphs extracted from NFPA 55 were shown with the extract ref
39、erence in brackets at the end of the paragraph. In some cases, modications were made to the extracted text to use terminology appropriate for this standard, such as the term cryogenic uid instead of compressed gas. In those instances, brackets encased the modied terms. The 2013 edition removed the r
40、equirements for hydrogen systems, the responsibility for which were transferred to NFPA 2, Hydrogen Technologies Code. A chapter on general fueling requirements was added, and changes were made to the onboard gas detection requirements for LNG-fueled vehicles. The installation requirements for ASME
41、Tanks for LNG were updated to coordinate with NFPA 59A, Standard for the Production, Storage, and Handling of Liqueed Natural Gas (LNG).VEHICULAR NATURAL GAS FUEL SYSTEMS CODE 52-2 2016 Edition The 2016 edition has been completely reorganized for easier access to requirements. The title of the docum
42、ent has been changed from Vehicular Gaseous Fuel Systems Code to Vehicular Natural Gas Fuel Systems Code to coordinate with the removal of hydrogen systems from the scope of the document in 2013. New and revised denitions harmonize the Code with the new CSA Group NGV 5.1 standard, Residential Fuelin
43、g Appliances. Most notably, this includes a new denition for residential fueling appliances and a revised denition for vehicle fueling appliances.COMMITTEE PERSONNEL 52-3 2016 Edition Technical Committee on Vehicular Alternative Fuel Systems Nancy C. Pehrson, Chair CenterPoint Energy, Inc., MN U Ste
44、phen V. Abernathy, Piedmont Natural Gas, SC U Ronald C. Adcock, Marsh Risk Consulting, AZ I Jim Ames, Blu Transfuels LLC, UT IM Michael Battagllia, CNG-ONE, LLC, OH IM Dan Bowerson, Chrysler, MI M Ronald E. Cloyd, ANGI Energy Systems, WI M Donna I. Denny, Westport Innovations Inc., Canada M Denis C.
45、 K. Ding, Clean Energy Fuels Corporation, CA M Thomas J. Forsythe, JENSEN HUGHES, CA SE Alan D. Hateld, Braemar Engineering, TX SE Tara Henriksen, CASE Forensics Corporation, WA SE Douglas B. Horne, DBHorne LLC, GA RT Quon Y. Kwan, U.S. Department of Transportation, DC E Rep. U.S. Department of Tran
46、sportation J. Roger Lackore, Oshkosh Corporation, WI M Michael W. Mackey, GP Strategies, CA SE Paul E. May, Bechtel Marine Propulsion Corporation, PA SE Timothy E. Meyers, U.S. Coast Guard, DC E Gregory A. Milewski, Shell Oil Company, TX IM Rep. American Petroleum Institute Randy Moses, Wayne Fuelin
47、g Systems LLC, PA M Knut Nerheim, Linde, AZ IM Robert E. Petsinger, CNG Services International Inc., PA IM Robert N. Renkes, Petroleum Equipment Institute, OK IM Jerrold Sameth, Compressed Gas Association, Inc., NJ M Rep. Compressed Gas Association Joel E. Sipe, Exponent, Inc., CA SE Neel Sirosh, Qu
48、antum Technologies Inc., CA M Glen E. Smith, Argus Consulting, Inc., KS SE Rep. American Railway Engineering with the Committees on Industrial Trucks, Fire Safety for Recreational Vehicles, and Marine Fire Protection with respect to engine fuel systems and refueling stations within their scopes; and
49、 the Liqueed Natural Gas Committee with respect to storage of LNG within its scope.VEHICULAR NATURAL GAS FUEL SYSTEMS CODE 52-4 2016 Edition Contents Chapter 1 Administration 52 5 1.1 Scope. . 52 5 1.2 Purpose. . 52 5 1.3 Retroactivity. 52 5 1.4 Alternate Provisions. . 52 5 1.5 Units. 52 6 1.6 Enforcement. . 52 6 1.7 Training. 52 6 Chapter 2 Referenced Publications 52 6 2.1 General. . 52 6 2.2 NFPA Publications. . 52 6 2.3 Other Publications. . 52 6 2.4 References for Extracts in Mandatory
