AGA Z223 1-2015 National Fuel Gas Code (Z223115 Thirteenth Edition Second Printing).pdf

1、NFPA 54 ANSI Z223.1 National Fuel Gas Code 2015 Edition NFPA 54 ANSI Z223.1 National Fuel Gas Code 2015 An American National Standard The American Gas Association, founded in 1918, represents more than 200 local energy companies that deliver clean natural gas throughout the United States. There are

2、more than 71 million residential, commercial and industrial natural gas customers in the U.S., of which 94 percent over 68 million customers receive their gas from AGA members. AGA is an advocate for natural gas utility companies and their customers and provides a broad range of programs and service

3、s for member natural gas pipelines, marketers, gatherers, international natural gas companies and industry associates. Today, natural gas meets more than one-fourth of the United States energy needs. For publication information contact the American Gas Associations publication fulfillment facility t

4、oll free at (800) 699-9277 or visit us on the web at www.aga.org. For more information on association activities or membership contact: American Gas Association, 400 N. Capitol Street, N.W., Washington, DC 20001 (202/824-7000 or FAX 202/824-7115). NFPA membership keeps you up-to-date with: One-on-on

5、e answers to your technical code questions dir ectly fr om NFP A staff Live web pr esentations fr om NFP A technical staf fNFP A Office Hours and NFP A Insider NFP A s awar d-winning bimonthly magazine, NFPA Journal , and eNewsletters Fr ee membership in any of 11 industry-specific sections 10% of f

6、 all pr oducts and services Join the worlds largest association for fire, building, and electrical safety professionals today at nfpa.org/join. The 2015 NFPA 54 Handbook is your go-to source for the “hows” and “whys” behind fuel gas safety compliance. Implement the 2015 edition of NFPA 54 with confi

7、dence! Fully updated and featuring a wealth of full-color visuals, NFP A s 2015 National Fuel Gas Code Handbook explains technical NFPA 54 r equir ements and fuel gas safety concepts so your e pr epar ed to answer questions fr om employees and owners; and verify that fuel gas piping, appliance, and

8、venting jobs are in compliance. Commentary from authorities in the field gives you the background, rationale, and practical tips you need. NFPA 54 Handbook combines Code rules with full-color visuals and eight supplements. Har dbound, Appr ox. 580 pp., 2015) Benefit from the fields premier training

9、anytime 24/7without leaving your home or office. NFPA Self- Guided Online Courses are the most flexible and affordable way to lay the foundation in fire, life, electrical, and building safety code knowledge. NFPA Self-Guided Online Courses are: Developed by code and standard experts Available 24/7 o

10、nline Easy-to-follow, no special computer expertise required A convenient way to enhance credibility and earn CEUs* For a full listing of Self-Guided NFPA training, visit NFPATRAINING.ORG/SELFGUIDED Self-Guided Online Courses The next step in professional training from the experts who develop codes

11、and standards. T o or der or for mor e details on other NFP A pr oducts or seminars, call toll-fr ee 1-800-344-3555. For orders outside the United States, call 617-770-3000. Visit our online catalog at nfpacatalog.org KJ-MIS-1Z 5415 NFPA 54-15 Code Cover.indd 1 8/28/14 10:56 AMIMPORTANT NOTICES AND

12、DISCLAIMERS CONCERNING AGA and NFPA STANDARDS NOTICE AND DISCLAIMER OF LIABILITY CONCERNING THE USE OF AGA and NFPA STANDARDS NFPA codes, standards, recommended practices, and guides, of which the standard contained herein is one, and AGAs Z223.1 are developed through a consensus standards developme

13、nt process approved by the American National Standards Institute. This process brings together volunteers representing varied viewpoints and interests to achieve consensus on fire and other safety issues. While the AGA and the NFPA administer the process and establish rules to promote fairness in th

14、e development of consensus, they do not independently test, evaluate, or verify the accuracy of any information or the soundness of any judgments contained in their codes and standards. The AGA and NFPA disclaim liability for any personal injury, property or other damages of any nature whatsoever, w

15、hether special, indirect, consequential or compensatory, directly or indirectly resulting from the publication, use of, or reliance on this standard. The AGA and the NFPA also make no guaranty or warranty as to the accuracy or completeness of any information published herein. In issuing and making t

16、his standard available, the AGA and the NFPA are not undertaking to render professional or other services for or on behalf of any person or entity. Nor are the AGA and the NFPA undertaking to perform any duty owed by any person or entity to someone else. Anyone using this standard should rely on his

17、 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 AGA and the NFPA have no power, nor do they undertake, to police or enforce compliance with the contents of this standard. N

18、or do the AGA and 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 AGA and the NFPA and is solely the responsibilit

19、y of the certifier or maker of the statement. Important Notices and Disclaimers continued on inside back cover. Thirteenth Edition 2015 Second Printing Printed in U.S.A. American Gas Association An American National StandardZ223.1-1 54-1 2015 EDITION Copyright 2014 National Fire Protection Associati

20、on and the American Gas Association. All Rights Reserved. NFPA 54 ANSI Z223.12015 National Fuel Gas Code 2015 Edition This edition of ANSI Z223.1/NFPA 54, National Fuel Gas Code, was prepared by the Technical Committee on National Fuel Gas Code and acted on by NFPA at its June Association Technical

21、Meeting held June 912, 2014, in Las Vegas, NV. It was issued by the Standards Council on August 14, 2014, with an effective date of September 3, 2014, and supersedes all previous editions. This edition of ANSI Z223.1/NFPA 54 was approved as an American National Standard on September 3, 2014. The ANS

22、I designation is Z223.1-2015 approved on August 8, 2014. The NFPA designation is NFPA 54-2015. Origin and Development of NFPA 54 This code offers criteria for the installation and operation of gas piping and gas equipment on consumers premises. It is the cumulative result of years of experience of m

23、any individuals and many organizations acquainted with the installation of gas piping and equipment designed for utilization of gaseous fuels. It is intended to promote public safety by providing requirements for the safe and satisfactory utilization of gas. Changes in this code can become necessary

24、 from time to time. When any revision is deemed advisable, recommendations should be forwarded to the Secretary, Accredited Standards Committee Z223, 400 N. Capitol St. NW, Washington, DC 20001, and the Secretary, Standards Council, National Fire Protection Association, 1 Batterymarch Park, Quincy,

25、MA 02169-7471. Prior to 1974, the following three codes covered the installation of gas piping and appliances: (1) American National Standard Installation of Gas Appliances and Gas Piping, ANSI Z21.30 (NFPA 54) (2) Installation of Gas Piping and Gas Equipment on Industrial Premises and Certain Other

26、 Premises, ANSI Z83.1 (NFPA 54A) (3) Fuel Gas Piping, ASME B31.2 The first edition of the code was issued in 1974. It combined the requirements of the three predecessor documents. The American Gas Association and the National Fire Protection Association have continued co-sponsorship of the code foll

27、owing the first edition. The second edition of the code, incorporating pertinent portions of B31.2, was issued in 1980, and reorganized the code to the current format. The third, fourth, fifth, sixth, and seventh editions were issued in 1984, 1988, 1992, 1996, and 1999, respectively. The scope of th

28、e code was expanded in 1988 to include piping systems up to and including 125 psi (862 kPa). The 2002 edition revised the requirements for air for combustion and ventilation to recognize changes in building construction practices. Also, coverage of sizing of gas piping systems was updated. The 2006

29、edition incorporated expanded steel, copper, and polyethylene pipe sizing tables. Requirements for appliance shutoff valves were revised to allow manifold systems with all shutoff valves in one location up to 50 ft (15 m) from the most remote appliance, and the chapters were reorganized by applicati

30、on. Changes to the 2009 edition included allowing press-connect fittings for gas piping systems, new requirements for bonding of CSST piping systems, expanded CSST sizing tables to recognize additional available sizes, new coverage of outdoor decorative appliances, and a new requirement to seal the

31、annular space around the side wall vent penetrations. In the 2012 edition, Section 8.3 on purging of fuel gas piping was extensively revised to require outdoor purging of piping larger than 2 in. nominal pipe size or piping operating at pressures above 2 psig (14 kPa) and monitoring of the outdoor p

32、urging point. Pipe 2 in. (50 mm) or smaller or with an operating pressure of 2 psig (14 kPa) or less can be purged indoors through a burner, with a gas detector, or by using written procedures. The 2015 edition includes further revisions to bonding requirements for CSST, as well as a complete revisi

33、on of the overpressure protection requirements. The bonding requirements for CSST were revised so that the bonding connection can be placed on any metallic fitting in the piping system as long as the bonding jumper does not exceed 75 ft in length. In addition, devices used for the bonding connection

34、 must be listed to ANSI/UL 467. The overpressure protection requirements in Section 5.9 were completely rewritten so that devices covered were entirely within the scope of NFPA 54. The exceptions were further restricted so that overpressure is now required on any system containing an appliance with

35、a maximum inlet pressure of 14 in. w.c. that is supplied with gas at the point of delivery at a pressure greater than 2 psig. The 2015 edition also includes expanded requirements for corrosion protection of underground steel piping in 7.1.3, new requirements on the drilling and tapping of piping and

36、 fittings in 5.6.8.4, an update of all flange and gasket coverage in 5.6.10 and 5.6.11, and a new prohibition on PVC & CPVC gas pressure piping in section 5.6.4.1.3. Finally, Annex G, Recommended Procedure for Safety Inspection of an Existing Appliance Installation, was expanded and revised to refle

37、ct modern appliances and test methods.54-2 NATIONAL FUEL GAS CODE Z223.1-2 2015 EDITION Hugo Aguilar, International Association of Plumbing & Mechanical Officials, CA E/EA Rep. International Association of Plumbing & Mechanical Officials Edward Angelone, EJA Consultants LLC, NY SE/SE Dmitry Antonov,

38、 Intertek, NY RT/AR-TL David Berning, A.O. Smith Corporation, SC M/M Rep. Air-Conditioning, Heating, & Refrigeration Institute James P . Brewer, Magic Sweep Corporation, VA IM/I-M Rep. National Chimney Sweep Guild Dan Buuck, National Association of Home Builders, DC I-M T odd W . Buechler, AMC Fairm

39、ont Insurance Services, IL I/I S. Ron Caudle, Southern California Gas Company, CA ES Sidney L. Cavanaugh, Cavanaugh Consulting, CA Rep. United Association I-M Sharon E. Coates, State of Arkansas, AR E/EA Rep. International Fire Marshals Association Mike Deegan, Clearwater Gas System, FL U/ES Rep. Am

40、erican Public Gas Association John P . Doucette, Connecticut Office of State Fire Marshal, CT EA Glen A. Edgar, VenTech, OH SE/SE Alberto Jose Fossa, * MDJ, Assessoria & Engenharia Consultiva, Brasil SE Rep. NFPA Latin American Section Ronnie Ray Frazier, Atmos Energy Corporation, TX IM/ES Rep. Amer

41、ican Gas Association Pennie L. Feehan, Pennie L. Feehan Consulting, CA M Rep. Copper Development Association Mike Gorham, Northwest Gas Company, MN IM/ES Rep. National Propane Gas Association Gregg A. Gress, International Code Council, IL E/EA Steen Hagensen, ENERVEX, GA M/M Patricio J. Himes, Siste

42、mas de Energia, Mexico U/ES Rep. Asociacin Mexicana de Distribuidores de Gas Peter Hoekstra, Association of Home Appliance Manufacturers VA M Peter T . Holmes,* Maine Fuel Board, ME E John Kory, CSA America, Inc., OH RT/AR-TL Theodore C. Lemoff, Naples, FL SE/SE Frank J. Mortimer,* EMC Insurance Com

43、pany, IA I Rep. Property Casualty Insurers Association of America James T . Osterhaus, Railroad Commission of Texas, TX E/EA Andrea Lanier Papageorge, AGL Resources, GA IM/ES Rep. American Gas Association Dale L. Powell,* Copper Development Association, Inc., PA M Rep. Copper Development Association

44、 Inc. Earl Rightmier, AERCO International, Inc., NJ M/M Rep. Air-Conditioning, Heating, and Refrigeration Institute Phillip H. Ribbs,* PHR Consultants, CA L Rep. California State Pipe T rades Council Joseph Mike Romano, TECO Peoples Gas, FL ES Rep. American Gas Association Matt Sigler, * Internation

45、al Association of Plumbing & Mechanical Officials, CA E Rep. International Association of Plumbing & Mechanical Officials Jack Scanlon, Rheem Manufacturing Co., AL M Rep. Air-Conditioning, Heating, and Refrigeration Institute Kenneth Sons, U.S. Department of the Interior, CO EA Thomas R. Stroud, Hea

46、rth, Patio and Barbeque Association, M Peter C. Swim,* Whirlpool Corporation, MI M Franklin R. Switzer, Jr., S-afe, Inc., NY SE/SE Robert Wozniak, UL LLC, NY RT/AR-TL Stephen M. Yapchanyk, Consolidated Edison Company of NY, Inc., NY IM/ES Rep. American Gas Association Technical Committee on National

47、 Fuel Gas Code Joint Listing of NFPA 54 and ASC Z223 Committees Thomas R. Crane, Chair Crane Engineering, MN SE/SE Paul W . Cabot, Nonvoting Secretary American Gas Association, DC IM Rep. American Gas Association Stephen V . Abernathy, Piedmont Natural Gas, SC IM/ES (Alt. to A. L. Papageorge) Duane

48、W . Brown, Ranger Insurance Company, TX I (Alt. to T. Buechler) Gerald G. Davis, Washington Gas, VA IM/ES (Alt. to S. M. Yapchanyk) John P . Doucette,* Connecticut Department of Public Safety, CT E (Alt. to P . T. Holmes) Pennie L. Feehan,* Pennie L. Feehan Consulting, CA M (Alt. to D. L. Powell) Fr

49、ed Grable,* International Code Council, IL E (Alt. to G. A. Gress) Rayfield Hearne,* Railroad Commission of Texas, TX E (Alt. to J. T. Osterhaus) Joseph M. Romano,* TECO Peoples Gas, FL IM (Alt. to R. R. Frazier) Susan McCarthy, CSA America, Inc., OH AR-TL (Alt. to J Kory) Dale L. Powell, Copper Development Association, Inc., PA M (Alt. to P L Feehan) Matt Sigler, International Association of Plumbing & Mecha