【英文标准名称】:StandardGuideforOn-LineMonitoringofCorrosioninPlantEquipment(ElectricalandElectrochemicalMethods)
【原文标准名称】:工厂设备中腐蚀性的在监视
【标准号】:ASTMG96-1990(2001)e1
【标准状态】:现行
【国别】:
【发布日期】:1990
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:G01.11
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:腐蚀;设备;说明书;种植;监督(认可)
【英文主题词】:corrosionmonitoringinplantequipment;electricalresistancemethodofcorrosionmeasurement;on-linecorrosionmonitoring;polarizationresistancemethodofcorrosionmeasurement;
【摘要】:Generalcorrosionischaracterizedbyareasofgreaterorlesserattack,throughouttheplant,ataparticularlocation,orevenonaparticularprobe.Therefore,theestimationofcorrosionrateaswithmasslosscouponsinvolvesanaveragingacrossthesurfaceoftheprobe.Allowancemustbemadeforthefactthatareasofgreaterorlesserpenetrationusuallyexistonthesurface.Visualinspectionoftheprobeelement,coupon,orelectrodeisrequiredtodeterminethedegreeofinterferenceinthemeasurementcausedbysuchvariability.Thisvariabilityislesscriticalwhererelativechangesincorrosionratearetobedetected.BothelectricaltestmethodsdescribedinthisguideprovideatechniquefordeterminingcorrosionrateswithouttheneedtophysicallyenterthesystemtowithdrawcouponsasrequiredbythemethodsdescribedinGuideG4.TestMethodBhastheadditionaladvantageofprovidingcorrosionratemeasurementwithinminutes.Thesetechniquesareusefulinsystemswhereprocessupsetsorotherproblemscancreatecorrosiveconditions.Anearlywarningofcorrosiveattackcanpermitremedialactionbeforesignificantdamageoccurstoprocessequipment.Thesetechniquesarealsousefulwhereinhibitoradditionsareusedtocontrolthecorrosionofequipment.Theindicationofanincreasingcorrosionratecanbeusedtosignaltheneedforadditionalinhibitor.Controlofcorrosioninprocessequipmentrequiresaknowledgeoftherateofattackonanongoingbasis.Thesetestmethodscanbeusedtoprovidesuchinformationindigitalformateasilytransferredtocomputersforanalysis.TESTMETHODAx2014;ELECTRICALRESISTANCE(1-6)4Top1.1Thisguideoutlinestheprocedureforconductingon-linecorrosionmonitoringofmetalsinplantequipmentunderoperatingconditionsbytheuseofelectricalorelectrochemicalmethods.Withinthelimitationsdescribed,thesetestmethodscanbeusedtodeterminecumulativemetallossorinstantaneouscorrosionrate,intermittentlyoronacontinuousbasis,withoutremovalofthemonitoringprobesfromtheplant.1.2Thefollowingtestmethodsareincluded:TestMethodAforelectricalresistance,andTestMethodBforpolarizationresistance.1.2.1TestMethodAprovidesinformationoncumulativemetalloss,andcorrosionrateisinferred.ThistestmethodrespondstotheremainingmetalthicknessexceptasdescribedinSection5.1.2.2MethodBisbasedonelectrochemicalmeasurementsfordeterminationofinstantaneouscorrosionratebutmayrequirecalibrationwithothertechniquestoobtaintruecorrosionrates.Itsprimaryvalueistherapiddetectionofchangesinthecorrosionratethatmaybeindicativeofundesirablechangesintheprocessenvironment.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Specificprecautionarystatementsaregivenin5.6.
【中国标准分类号】:A29
【国际标准分类号】:77_060
【页数】:10P.;A4
【正文语种】:
基本信息
标准名称: | 轨道交通 机车车辆电气设备 开启式功率电阻器规则 |
英文名称: | Railway applications—Electric equipment for rolling stock—Rules for power resistors of open construction |
中标分类: |
铁路 >>
机车车辆通用标准 >>
牵引电气设备 |
ICS分类: |
电气工程 >>
电力牵引设备
|
发布部门: | 中华人民共和国国家质量监督检验检疫总局 中国国家标准化管理委员会 |
发布日期: | 2010-09-02 |
实施日期: | 2011-02-01 |
首发日期: | 2010-09-02 |
作废日期: | |
主管部门: | 铁道部 |
提出单位: | 中华人民共和国铁道部 |
归口单位: | 全国牵引电气设备与系统标准化技术委员会 |
起草单位: | 株洲南车时代电气股份有限公司 |
起草人: | 西南交通大学 |
出版社: | 中国标准出版社 |
出版日期: | 2011-02-01 |
页数: | 16页 |
适用范围
本标准规定了机车车辆主电路和辅助电路用的各种功率电阻器(如制动电阻、加热电阻、吸收电阻和滤波电阻)的使用规则,而不考虑它们所应用的电路和机车车辆的类型。
前言
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引用标准
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所属分类: 铁路 机车车辆通用标准 牵引电气设备 电气工程 电力牵引设备