【英文标准名称】:Nondestructiveexaminationofwelds.Ultrasonicexaminationofweldedjoints.Acceptancelevels.
【原文标准名称】:焊接的无损检验.焊接接头的超声波检验.验收水平
【标准号】:NFA89-521-1997
【标准状态】:作废
【国别】:法国
【发布日期】:1997-11-01
【实施或试行日期】:1997-11-20
【发布单位】:法国标准化协会(FR-AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:试验;表面;材料试验;焊接接头;材料;无损检验;焊接工程;允许性;铁素体钢;边界;焊接;超声检验;对接;超声波学;方法
【英文主题词】:Boundaries;Buttseams;Ferriticsteels;Materials;Materialstesting;Methods;Non-destructivetesting;Permissibility;Surfaces;Testing;Ultrasonictesting;Ultrasonics;Weldedjoints;Welding;Weldingengineering
【摘要】:
【中国标准分类号】:J33;H26
【国际标准分类号】:25_160_40
【页数】:15P.;A4
【正文语种】:其他


【英文标准名称】:Electricalrelays-Electricaldisturbancetestsformeasuringrelaysandprotectionequipment-Powerfrequencyimmunitytests
【原文标准名称】:电气继电器.测量继电器和保护设备的电干扰试验.工频抗扰试验
【标准号】:BSEN60255-22-7-2003
【标准状态】:现行
【国别】:英国
【发布日期】:2003-06-09
【实施或试行日期】:2003-06-09
【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】:Definition;Definitions;Electricalengineering;Electricalprotectionequipment;Immunity;Influencequantities;Interferencerejections;Measuringrelays;Powerfrequency;Protectiondevices;Protectiverelays;Qualificationtests;Relays;Testset-ups;Testing
【摘要】:ThispartofIEC60255isbasedontheconceptsdescribedinIEC61000-4-16,referringtothatpublicationwhereapplicable,andspecifiesthegeneralrequirementsforpowerfrequencyimmunitytestsformeasuringrelaysandprotectionequipmentforpowersystemprotection,includingthecontrol,monitoringandprocessinterfaceequipmentusedwiththosesystems.Theobjectiveofthetestsistoconfirmthattheequipmentundertest(EUT)willoperatecorrectlywhenenergisedandsubjectedtoshortduration,conducted,commonanddifferentialmodepowerfrequencydisturbancesappliedtoDCstatusinputs,attheratedfrequencyoftheEUT,forexample50/3Hz,50Hzand60Hz.Thetestingofpilotwireschemesbetweensubstationsisnotcoveredbythisstandard.Therequirementsspecifiedinthisstandardareapplicabletomeasuringrelaysandprotectionequipmentinanewconditionandalltestsspecifiedaretypetestsonly.Theobjectofthisstandardistostate:-definitionsoftermsused;-testseveritylevels;-testequipment;-testset-up;-testprocedures;-criteriaforacceptance;-testreport.
【中国标准分类号】:K33
【国际标准分类号】:29_120_70
【页数】:16P.;A4
【正文语种】:英语