ANSI CSA AM LC 1-2016 CSA 6.26-2016 Fuel gas piping systems using corrugated stainless steel tubing (Fourth Edition).pdf

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18、itutes your acceptance of the terms and conditions of this Legal Notice.Revision HistoryANSI LC 1-2016 CSA 6.26-2016, Fuel gas piping systems usingcorrugated stainless steel tubingRevision from previous edition Revision symbol (inmargin)Clauses 1.14, 3, 4.3, 4.4, 4.7, 4.8.2, and 5.16.1.2Annex BStand

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36、ociation and CSA America Inc., operating as “CSA Group”American National Standards Institute, Inc.Interprovincial Gas Advisory CouncilApproved on March 10, 2016 by ANSIApproved on March 27, 2016 by IGACEffective in Canada October 1, 2017Fuel gas piping systems usingcorrugated stainless steel tubingA

37、NSI LC 1-2016 CSA 6.26-2016ANSI LC 1-2016 CSA 6.26-2016Fuel gas piping systems using corrugated stainless steel tubingApril 2016 2016 CSA Group 1ContentsInterprovincial Gas Advisory Council 3Z21/83 Technical Committee on Performance and Installation of Gas Burning Appliances and RelatedAccessories 5

38、CSA Technical Committee on Gas Appliances and Related Accessories 8Joint Technical SubCommittee on Standards for Gas Piping Systems for Corrugated Stainless SteelTubing (CSST) 11Preface 131 Scope 162 Reference publications 173 Definitions 194 Construction 214.1 Materials 214.2 General 224.3 Gas pres

39、sure regulators 224.4 Manually operated gas valves 224.5 Quick-disconnect devices and gas convenience outlets 234.6 Striker plates 234.7 Instructions 234.8 Marking 254.9 Installer training 265 Performance 265.1 General 265.2 Leakage 265.3 Pressure capacity 275.4 Flexibility of tubing 275.4.1 Bending

40、 275.4.2 Torsion 295.5 Axial strength 305.6 Crushing strength 305.7 Impact strength 315.8 Torsion strength of threaded fittings 315.9 Exposure to elevated temperatures (fire hazard resistance) 315.10 Flow capacity and equivalent hydraulic diameter (EHD) 325.10.2 Flow capacity of tubing 355.10.3 Dete

41、rmination of Equivalent Hydraulic Diameter (EHD) 385.11 Pressure drop from bends 415.11.2 Pressure drop from bends 415.11.3 Pressure drop from fittings 42ANSI LC 1-2016 CSA 6.26-2016Fuel gas piping systems using corrugated stainless steel tubingApril 2016 2016 CSA Group 25.12 Effectiveness of strike

42、r plates 425.13 Mechanical tube fittings - resistance to loosening 445.14 Resistance to outdoor environment 465.14.2 Resistance to extreme temperature cycles 465.14.3 Resistance to freezing and thawing 485.14.4 Resistance to corrosion 485.15 Electrical properties 495.15.1 Resistance and conductivity

43、 495.16 Arc resistant jacket or covering system (optional) 505.16.1 General 505.16.2 Resistance of jacket material to extreme environment(s) 505.16.3 Electrical tests robustness against arcing (indirect lightning) 515.16.4 Resistance to installation damage 526 Manufacturing and production tests 537

44、Items unique to Canada 54Annex A Minimum design and installation manual requirements 55Annex B Instructions for the direct (electrical) bonding of CSST piping systems 58Annex C Table of conversion factors 60ANSI LC 1-2016 CSA 6.26-2016Fuel gas piping systems using corrugated stainless steel tubingAp

45、ril 2016 2016 CSA Group 3Interprovincial Gas Advisory CouncilJ.R. Marshall Technical Standards suggestions for its improvement will be referred tothe appropriate committee. To submit a proposal for change, please send the following information toinquiriescsagroup.org and include “Proposal for change

46、 in the subject line:a) Standard designation (number)b) relevant clause, table, and/or figure number;c) wording of the proposed change; andd) rationale for the change.6) To submit a request for interpretation of this Standard, please send the following information toinquiriescsagroup.org and includ

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48、 a way that a specific “yes” or “no” answer will address theissue.Committee interpretations are processed in accordance with the CSA Directives and guidelines governingstandardization and are available on the Current Standards Activities page at standardsactivities.csa.ca.ANSI LC 1-2016 CSA 6.26-201

49、6Fuel gas piping systems using corrugated stainless steel tubingApril 2016 2016 CSA Group 14History of the development of ANSI LC 1-2016 CSA 6.26-2016Note: This history is informative and is not part of the standard.In 1983, the Gas Research Institute (GRI) initiated its “Residential/Commercial Piping Program.” Thisresearch and development effort was aimed at identifying and developing innovative building pipingsystems and materials as a viable alternative to conventional rigid black iron piping.One of the most promising concepts that emerg