AGA Z380.1-2018 Guide for Gas Transmission and Distribution Piping Systems.pdf

1、 American Gas Association 400 N. Capitol St., NW Washington, DC 20001 Michael Bellman GPTC Secretary (202) 824-7183 mbellmanaga.org June 1, 2018 Dear Guide Purchaser, Enclosed is ANSI/GPTC Z380.1, Guide for Gas Transmission, Distribution, and Gathering Piping Systems, 2018 Edition. Your purchase ent

2、itles you to receive future addenda to this edition. Addenda are typically issued 2 to 3 times per year and are formatted to enable the replacement of pages in your Guide with updated pages. Addenda will be available for free downloading from the GPTC webpage at www.aga.org/gptc or paper copies may

3、be purchased at https:/www.aga.org/aga-publications for a nominal fee. On behalf of the Gas Piping Technology Committee and the American Gas Association, thank you for your purchase and interest in the Guide. Sincerely, Secretary GPTC Z380This page left intentionally blank ANSI GPTC Z380.1-2018 AGA

4、CATALOG NUMBER Z380118 This page left intentionally blank 1 GPTC GUIDE FOR GAS TRANSMISSION, DISTRIBUTION, AND GATHERING PIPING SYSTEMS 2018 EDITION June 2018 The changes in this edition are marked by wide vertical lines inserted to the left of modified text, overwriting the left border of most tabl

5、es, or a block symbol ( ) where needed. There were no Federal Regulation updates for this period. Nine GPTC transactions affected 26 sections of the Guide. Editorial updates include application of the Editorial Guidelines, adjustments to page numbering, and adjustment of text on pages. Only signific

6、ant editorial updates are marked. Editorial updates as indicated “EU” affected 6 sections of the Guide. Most sections were impacted by page adjustments throughout the guide. The table shows the affected sections. All pages are replaced with this Edition. Key to Reasons for Change Amdt.19X-XXX or doc

7、ket number: federal regulation amendment TR YY-XX: GPTC transaction with new or updated guide material EU: editorial update Guide Section Reason for Change Title Page EU Foreword TR 17-07 GPTC Membership listed by Committee EU GPTC Membership listed by member participation EU Part 191 Part 191 TR 16

8、-40 Part 192 Part 192 EU Subpart A 192.1 TR 16-16 cover photo of welder provided by permission of the Southern California Gas Company. Copyright 2018 THE AMERICAN GAS ASSOCIATION 400 N. Capitol St., NW Washington, DC 20001 All Rights Reserved Printed in U.S.A.GPTC GUIDE FOR GAS TRANSMISSION, DISTRIB

9、UTION, AND GATHERING PIPING SYSTEMS: 2018 Edition iv CONTENTS Page PREFACE . xiii HISTORY xiii FOREWORD xiv GAS PIPING TECHNOLOGY COMMITTEE MEMBERSHIP . xvii Listed by Committee xvii Listed by Member Participation xxiii LETTER TO GAS PIPING TECHNOLOGY COMMITTEE FROM THE U.S. DEPARTMENT OF TRANSPORTA

10、TION xxxiii AMERICAN GAS ASSOCIATION (AGA) NOTICE AND DISCLAIMER . xxxiv EDITORIAL CONVENTIONS OF THE GUIDE xxxv EDITORIAL NOTES FOR THE HISTORICAL RECONSTRUCTION OF PARTS 191 AND 192 xxxvii HISTORICAL RECONSTRUCTION OF PART 191 . xxxvii HISTORICAL RECORD OF AMENDMENTS TO PART 191 xxxix HISTORICAL R

11、ECONSTRUCTION OF PART 192 . xliii HISTORICAL RECORD OF AMENDMENTS TO PART 192 . liii PART 191 - ANNUAL REPORTS, INCIDENT REPORTS, AND SAFETY-RELATED CONDITION REPORTS 1 191.1 Scope . 1 191.3 Definitions 2191.5 Immediate notice of certain incidents . 4191.7 Report submission requirements 5 191.9 Dist

12、ribution system: Incident report . 6 191.11 Distribution system: Annual report 6191.12 Distribution systems: Mechanical fitting failure reports 7 191.13 Distribution systems reporting transmission pipelines; transmission or gathering systems reporting distribution pipelines. 9 191.15 Transmission sy

13、stems; gathering systems; and liquefied natural gas facilities: Incident report . 10 191.17 Transmission systems; gathering systems; and liquefied natural gas facilities: Annual report 10 GPTC GUIDE FOR GAS TRANSMISSION, DISTRIBUTION, AND GATHERING PIPING SYSTEMS: 2018 Edition v 191.19 (Removed) . 1

14、1 191.21 OMB control number assigned to information collection 11 191.22 National Registry of Pipeline and LNG Operators 12 191.23 Reporting safety-related conditions 13 191.25 Filing safety-related condition reports . 14 191.27 (Removed) . 15 191.29 National Pipeline Mapping System . 16 PART 192 -

15、MINIMUM FEDERAL SAFETY STANDARDS . 17 SUBPART A - GENERAL . 17 192.1 What is the scope of this part? 17 192.3 Definitions 19 192.5 Class locations . 30 192.7 What documents are incorporated by reference partly or wholly in this part? . 31 192.8 How are onshore gathering lines and regulated onshore g

16、athering lines determined? . 36 192.9 What requirements apply to gathering lines? . 42 192.10 Outer continental shelf pipelines 43 192.11 Petroleum gas systems . 44 192.12 Underground Natural Gas Storage Facilities 46 192.13 What general requirements apply to pipelines regulated under this part? 47

17、192.14 Conversion to service subject to this part . 48 192.15 Rules of regulatory construction . 49 192.16 Customer notification . 50 192.17 (Removed) . 50 SUBPART B - MATERIALS . 51 192.51 Scope . 51 192.53 General 51 192.55 Steel pipe . 52 192.57 (Removed and reserved) 53 192.59 Plastic pipe . 53

18、192.61 (Removed and reserved) 54 192.63 Marking of materials 54 192.65 Transportation of pipe 55 SUBPART C - PIPE DESIGN . 57 192.101 Scope . 57 192.103 General 57 192.105 Design formula for steel pipe 58 192.107 Yield strength (S) for steel pipe . 59 192.109 Nominal wall thickness (t) for steel pip

19、e . 60 192.111 Design factor (F) for steel pipe 61 192.112 Additional design requirements for steel pipe using alternative maximum allowable operating pressure . 63 192.113 Longitudinal joint factor (E) for steel pipe . 74 192.115 Temperature derating factor (T) for steel pipe 75 192.117 (Removed an

20、d reserved) 75 192.119 (Removed and reserved) 75 192.121 Design of plastic pipe 76 192.123 Design limitations for plastic pipe 80 192.125 Design of copper pipe . 84 GPTC GUIDE FOR GAS TRANSMISSION, DISTRIBUTION, AND GATHERING PIPING SYSTEMS: 2018 Edition vi SUBPART D - DESIGN OF PIPELINE COMPONENTS

21、. 85 192.141 Scope . 85 192.143 General requirements 85 192.144 Qualifying metallic components 86 192.145 Valves 87 192.147 Flanges and flange accessories . 88 192.149 Standard fittings . 92 192.150 Passage of internal inspection devices. 93 192.151 Tapping 94 192.153 Components fabricated by weldin

22、g . 95 192.155 Welded branch connections 96 192.157 Extruded outlets . 99 192.159 Flexibility 101 192.161 Supports and anchors . 104 192.163 Compressor stations: Design and construction 105 192.165 Compressor stations: Liquid removal . 107 192.167 Compressor stations: Emergency shutdown 107 192.169

23、Compressor stations: Pressure limiting devices. 109 192.171 Compressor stations: Additional safety equipment 110 192.173 Compressor stations: Ventilation 111 192.175 Pipe-type and bottle-type holders . 112 192.177 Additional provisions for bottle-type holders . 113 192.179 Transmission line valves .

24、 114 192.181 Distribution line valves . 115 192.183 Vaults: Structural design requirements . 116 192.185 Vaults: Accessibility . 117 192.187 Vaults: Sealing, venting, and ventilation . 118 192.189 Vaults: Drainage and waterproofing . 119 192.191 Design pressure of plastic fittings . 119 192.193 Valv

25、e installation in plastic pipe 120 192.195 Protection against accidental overpressuring . 121 192.197 Control of the pressure of gas delivered from high-pressure distribution systems 123 192.199 Requirements for design of pressure relief and limiting devices . 124 192.201 Required capacity of pressu

26、re relieving and limiting stations 126 192.203 Instrument, control, and sampling pipe and components 127 SUBPART E - WELDING OF STEEL IN PIPELINES . 129 192.221 Scope . 129 192.223 (Removed) . 129 192.225 Welding procedures. 129 192.227 Qualification of welders . 130 192.229 Limitations on welders .

27、 131 192.231 Protection from weather 132 192.233 Miter joints 132 192.235 Preparation for welding . 132 192.237 (Removed) . 133 192.239 (Removed) . 134 192.241 Inspection and test of welds 134 192.243 Nondestructive testing . 135 192.245 Repair or removal of defects . 136 GPTC GUIDE FOR GAS TRANSMIS

28、SION, DISTRIBUTION, AND GATHERING PIPING SYSTEMS: 2018 Edition vii SUBPART F - JOINING OF MATERIALS OTHER THAN BY WELDING . 139 192.271 Scope . 139 192.273 General 139 192.275 Cast iron pipe . 141 192.277 Ductile iron pipe . 142 192.279 Copper pipe . 142 192.281 Plastic pipe . 143 192.283 Plastic pi

29、pe: Qualifying joining procedures . 147 192.285 Plastic pipe: Qualifying persons to make joints 150 192.287 Plastic pipe: Inspection of joints . 151 SUBPART G - GENERAL CONSTRUCTION REQUIREMENTS FOR TRANSMISSION LINES AND MAINS 153 192.301 Scope . 153 192.303 Compliance with specifications or standa

30、rds . 153 192.305 Inspection: General . 153 192.307 Inspection of materials . 154 192.309 Repair of steel pipe 154 192.311 Repair of plastic pipe . 156 192.313 Bends and elbows . 157 192.315 Wrinkle bends in steel pipe . 158 192.317 Protection from hazards 158 192.319 Installation of pipe in a ditch

31、 160 192.321 Installation of plastic pipe 162 192.323 Casing 168 192.325 Underground clearance . 169 192.327 Cover 170 192.328 Additional construction requirements for steel pipe using alternative maximum allowable operating pressure 171 SUBPART H - CUSTOMER METERS, SERVICE REGULATORS, AND SERVICE L

32、INES 177 192.351 Scope . 177 192.353 Customer meters and regulators: Location 177 192.355 Customer meters and regulators: Protection from damage . 179 192.357 Customer meters and regulators: Installation . 181 192.359 Customer meter installations: Operating pressure . 182 192.361 Service lines: Inst

33、allation . 183 192.363 Service lines: Valve requirements . 189 192.365 Service lines: Location of valves . 189 192.367 Service lines: General requirements for connections to main piping 189 192.369 Service lines: Connections to cast iron or ductile iron mains . 191 192.371 Service lines: Steel 191 1

34、92.373 Service lines: Cast iron and ductile iron 191 192.375 Service lines: Plastic 192 192.377 Service lines: Copper . 192 192.379 New service lines not in use 193 192.381 Service lines: Excess flow valve performance standards 194 192.383 Excess flow valve installation 197 192.385 Manual service li

35、ne shut-off valve installation 201 GPTC GUIDE FOR GAS TRANSMISSION, DISTRIBUTION, AND GATHERING PIPING SYSTEMS: 2018 Edition vii SUBPART I - REQUIREMENTS FOR CORROSION CONTROL 203 192.451 Scope . 203 192.452 How does this subpart apply to converted pipelines and regulated onshore gathering lines? 20

36、3 192.453 General 204 192.455 External corrosion control: Buried or submerged pipelines installed after July 31, 1971 . 204 192.457 External corrosion control: Buried or submerged pipelines installed before August 1, 1971 . 206 192.459 External corrosion control: Examination of buried pipeline when

37、exposed . 207 192.461 External corrosion control: Protective coating 208 192.463 External corrosion control: Cathodic protection 209 192.465 External corrosion control: Monitoring 210 192.467 External corrosion control: Electrical isolation 214 192.469 External corrosion control: Test stations. 218

38、192.471 External corrosion control: Test leads 219 192.473 External corrosion control: Interference currents . 220 192.475 Internal corrosion control: General 220 192.476 Internal corrosion control: Design and construction of transmission line 224 192.477 Internal corrosion control: Monitoring . 229

39、 192.479 Atmospheric corrosion control: General . 229 192.481 Atmospheric corrosion control: Monitoring . 231 192.483 Remedial measures: General . 232 192.485 Remedial measures: Transmission lines 232 192.487 Remedial measures: Distribution lines other than cast iron or ductile iron lines 234 192.48

40、9 Remedial measures: Cast iron and ductile iron pipelines 235 192.490 Direct assessment . 236 192.491 Corrosion control records 237 SUBPART J - TEST REQUIREMENTS . 239 192.501 Scope . 239 192.503 General requirements 239 192.505 Strength test requirements for steel pipeline to operate at a hoop stre

41、ss of 30 percent or more of SMYS . 240 192.507 Test requirements for pipelines to operate at a hoop stress less than 30 percent of SMYS and at or above 100 p.s.i. (689 kPa) gage 243 192.509 Test requirements for pipelines to operate below 100 p.s.i. (689 kPa) gage 244 192.511 Test requirements for s

42、ervice lines . 245 192.513 Test requirements for plastic pipelines . 246 192.515 Environmental protection and safety requirements 250 192.517 Records 252 SUBPART K - UPRATING . 255 192.551 Scope . 255 192.553 General requirements 255 192.555 Uprating to a pressure that will produce a hoop stress of

43、30 percent or more of SMYS in steel pipelines . 257 192.557 Uprating: Steel pipelines to a pressure that will produce a hoop stress less than 30 percent of SMYS: plastic, cast iron, and ductile iron pipelines 259 GPTC GUIDE FOR GAS TRANSMISSION, DISTRIBUTION, AND GATHERING PIPING SYSTEMS: 2018 Editi

44、on viii SUBPART L - OPERATIONS . 263 192.601 Scope . 263 192.603 General provisions . 263 192.605 Procedural manual for operations, maintenance, and emergencies . 264 192.607 (Removed and reserved) 274 192.609 Change in class location: Required study 274 192.611 Change in class location: Confirmatio

45、n or revision of maximum allowable operating pressure 275 192.612 Underwater inspection and re-burial of pipelines in the Gulf of Mexico and its inlets 276 192.613 Continuing surveillance . 278 192.614 Damage prevention program 286 192.615 Emergency plans . 294 192.616 Public awareness 305 192.617 I

46、nvestigation of failures 309 192.619 Maximum allowable operating pressure: Steel or plastic pipelines . 311 192.620 Alternative maximum allowable operating pressure for certain steel pipelines . 313 192.621 Maximum allowable operating pressure: High-pressure distribution systems 328 192.623 Maximum

47、and minimum allowable operating pressure: Low-pressure distribution systems 329 192.625 Odorization of gas . 329 192.627 Tapping pipelines under pressure 332 192.629 Purging of pipelines . 334 192.631 Control room management . 335 SUBPART M - MAINTENANCE . 349 192.701 Scope . 349 192.703 General 349

48、 192.705 Transmission lines: Patrolling . 353 192.706 Transmission lines: Leakage surveys . 355 192.707 Line markers for mains and transmission lines 355 192.709 Transmission lines: Record keeping . 356 192.711 Transmission lines: General requirements for repair procedures 357 192.713 Transmission l

49、ines: Permanent field repair of imperfections and damages 357 192.715 Transmission lines: Permanent field repair of welds 360 192.717 Transmission lines: Permanent field repair of leaks . 360 192.719 Transmission lines: Testing of repairs 361 192.721 Distribution systems: Patrolling . 361 192.723 Distribution systems: Leakage surveys . 363 192.725 Test requirements for reinstating service lines . 365 192.727 Abandonment or deactivation of facilities . 365 192.729 (Removed) . 368 192.731 Compressor stations: Inspection and testing of relief devices . 368 192.733 (Removed)