BS EN 50162-2005 直流系统中杂散电流引起腐蚀的防护
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【英文标准名称】:Protectionagainstcorrosionbystraycurrentfromdirectcurrentsystems
【原文标准名称】:直流系统中杂散电流引起腐蚀的防护
【标准号】:BSEN50162-2005
【标准状态】:现行
【国别】:英国
【发布日期】:2005-01-19
【实施或试行日期】:2005-01-19
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:Thisstandardestablishesthegeneralprinciplestobeadoptedtominimizetheeffectsofstraycurrentcorrosioncausedbydirect-current(d.c.)onburiedorimmersedmetalstructures.Thestandardisintendedtoofferguidancefor:thedesignofdirectcurrentsystemswhichmayproducestraycurrents;thedesignofmetalstructures,whicharetobeburiedorimmersedandwhichmaybesubjecttostraycurrentcorrosion;theselectionofappropriateprotectionmeasures.Thestandardmainlydealswithexternalstraycurrentcorrosiononburiedorimmersedstructures.Howeverstraycurrentcorrosionmayalsooccurinternallyinsystemscontaininganelectrolytee.g.nearinsulatingjointsorhighresistancepipejointsinawaterpipeline.Thesesituationsarenotdealtwithindetailinthisstandardbutprinciplesandmeasuresdescribedherearegenerallyapplicableforminimizingtheinterferenceeffects.Straycurrentsmayalsocauseothereffectssuchasoverheating.Thesearenotcoveredinthisstandard.D.C.systemsthatcancausecurrentstoflowintheearthoranyotherelectrolyte,whetherintentionalorunintentional,include:d.c.tractionsystems;trolleybussystems;d.c.powersystems;d.c.equipmentatindustrialsites;d.c.communicationsystems;cathodicprotectionsystems;highvoltaged.c.(HVDC)transmissionsystems;d.c.trackcircuitsignallingsystems.ForstraycurrentsfromtractionsystemsEN50122-2givesrequirementsforminimizingtheirproductionandfortheeffectswithintherailroad.Systemswhichmaybeaffectedbystraycurrentsincludeburiedorimmersedmetalstructuressuchas:a)pipelines;b)metalsheathedcables;c)tanksandvessels;d)earthingsystems;e)steelreinforcementinconcrete;f)steelpiling.Anaffectedstructurecarryingstraycurrents,e.g.apipelineorcablemayitselfaffectothernearbystructures(seeClause8).Thisstandarddoesnotaddresstheeffectofa.c.straycurrent.Wherea.c.straycurrentissuspected,careshouldbetakenwhentakingmeasurementsonanycomponentsduetoriskoflargeinducedvoltages.Ifa.c.straycurrentinterferenceispresentthecriteriadescribedinthisstandardwillnotapply.
【中国标准分类号】:K04;A29
【国际标准分类号】:29_020;77_060
【页数】:34P;A4
【正文语种】:英语
【原文标准名称】:直流系统中杂散电流引起腐蚀的防护
【标准号】:BSEN50162-2005
【标准状态】:现行
【国别】:英国
【发布日期】:2005-01-19
【实施或试行日期】:2005-01-19
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:Thisstandardestablishesthegeneralprinciplestobeadoptedtominimizetheeffectsofstraycurrentcorrosioncausedbydirect-current(d.c.)onburiedorimmersedmetalstructures.Thestandardisintendedtoofferguidancefor:thedesignofdirectcurrentsystemswhichmayproducestraycurrents;thedesignofmetalstructures,whicharetobeburiedorimmersedandwhichmaybesubjecttostraycurrentcorrosion;theselectionofappropriateprotectionmeasures.Thestandardmainlydealswithexternalstraycurrentcorrosiononburiedorimmersedstructures.Howeverstraycurrentcorrosionmayalsooccurinternallyinsystemscontaininganelectrolytee.g.nearinsulatingjointsorhighresistancepipejointsinawaterpipeline.Thesesituationsarenotdealtwithindetailinthisstandardbutprinciplesandmeasuresdescribedherearegenerallyapplicableforminimizingtheinterferenceeffects.Straycurrentsmayalsocauseothereffectssuchasoverheating.Thesearenotcoveredinthisstandard.D.C.systemsthatcancausecurrentstoflowintheearthoranyotherelectrolyte,whetherintentionalorunintentional,include:d.c.tractionsystems;trolleybussystems;d.c.powersystems;d.c.equipmentatindustrialsites;d.c.communicationsystems;cathodicprotectionsystems;highvoltaged.c.(HVDC)transmissionsystems;d.c.trackcircuitsignallingsystems.ForstraycurrentsfromtractionsystemsEN50122-2givesrequirementsforminimizingtheirproductionandfortheeffectswithintherailroad.Systemswhichmaybeaffectedbystraycurrentsincludeburiedorimmersedmetalstructuressuchas:a)pipelines;b)metalsheathedcables;c)tanksandvessels;d)earthingsystems;e)steelreinforcementinconcrete;f)steelpiling.Anaffectedstructurecarryingstraycurrents,e.g.apipelineorcablemayitselfaffectothernearbystructures(seeClause8).Thisstandarddoesnotaddresstheeffectofa.c.straycurrent.Wherea.c.straycurrentissuspected,careshouldbetakenwhentakingmeasurementsonanycomponentsduetoriskoflargeinducedvoltages.Ifa.c.straycurrentinterferenceispresentthecriteriadescribedinthisstandardwillnotapply.
【中国标准分类号】:K04;A29
【国际标准分类号】:29_020;77_060
【页数】:34P;A4
【正文语种】:英语
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