【英文标准名称】:StandardSpecificationforRubberRingsforAsbestos-CementPipe
【原文标准名称】:石棉水泥管用橡胶垫圈的标准规范
【标准号】:ASTMD1869-1995
【标准状态】:现行
【国别】:美国
【发布日期】:1995
【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】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:密封件;纤维水泥;混凝土;石棉;施工材料;施工材料;密封;石棉水泥;水泥;建筑
【英文主题词】:constructionmaterials;asbestos;concretes;construction;sealing;cements;asbestoscement;fibrecements;seals
【摘要】:
【中国标准分类号】:G40
【国际标准分类号】:23_040_80
【页数】:3P;A4
【正文语种】:英语


【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