IEEE 43-2000 检测旋转电机绝缘电阻的推荐实施规范
作者:标准资料网 时间:2024-04-28 11:41:44 浏览:8465
来源:标准资料网
【英文标准名称】:Recommendedpracticefortestinginsulationresistanceofrotatingmachinery
【原文标准名称】:检测旋转电机绝缘电阻的推荐实施规范
【标准号】:IEEE43-2000
【标准状态】:现行
【国别】:美国
【发布日期】:2000
【实施或试行日期】:
【发布单位】:美国电气电子工程师学会(US-IEEE)
【起草单位】:IEEE
【标准类型】:()
【标准水平】:()
【中文主题词】:试验;试验规程;绝缘电阻;绝缘;旋转电机;电动机;电气工程
【英文主题词】:Electricmotors;Electricalengineering;Insulatingresistance;Insulations;Rotatingelectricmachines;Testprocedures;Testing
【摘要】:Describestherecommendedprocedureformeasuringinsulationresistanceofarmatureandfieldwindingsinrotatingmachinesrated1hp,750Worgreater.Itappliestosynchronousmachines,inductionmachines,dcmachines,andsynchronouscondensers.
【中国标准分类号】:K20
【国际标准分类号】:29_160_01
【页数】:21P.;A4
【正文语种】:英语
【英文标准名称】:Plastics-Determinationofthemeltmass-flowrate(MFR)andthemeltvolume-flowrate(MVR)ofthermoplastics
【原文标准名称】:塑料.热塑性塑料熔体质量流速(MFR)和熔体体积流速(MVR)的测定
【标准号】:BSENISO1133-2005
【标准状态】:作废
【国别】:英国
【发布日期】:2005-10-11
【实施或试行日期】:2005-10-11
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:共聚物;定义;测定;刘亮分析;流动性;流量值;负荷;质量(物质);材料;熔体流动指数;熔体体积指数;熔化;熔点曲线;塑料;流变性能;软化点测量;应力;温度;试验设备;试验;热塑性聚合物;粘度;粘度测量;体积;容积流量率
【英文主题词】:Copolymers;Definition;Definitions;Determination;Flowanalysis;Flowproperties;Flowvalues;Loading;Mass;Materials;Meltflowindex;Meltvolumeindex;Melting;Meltingpointcurves;Plastics;Rheologicalproperties;Softening-pointdetermination;Stress;Temperature;Testequipment;Testing;Tests;Thermoplasticpolymers;Viscosity;Viscositymeasurement;Volume;Volumeflowrate
【摘要】:ThisInternationalStandardspecifiestwoproceduresforthedeterminationofthemeltmass-flowrate(MFR)andthemeltvolume-flowrate(MVR)ofthermoplasticmaterialsunderspecifiedconditionsoftemperatureandload.ProcedureAisamass-measurementmethod.ProcedureBisadisplacement-measurementmethod.Normally,thetestconditionsformeasurementofmeltflowratearespecifiedinthematerialstandardwithareferencetothisInternationalStandard.ThetestconditionsnormallyusedforthermoplasticsarelistedinAnnexesAandB.TheMVRwillbefoundparticularlyusefulwhencomparingmaterialsofdifferentfillercontentandwhencomparingfilledwithunfilledthermoplastics.TheMFRcanbedeterminedfromMVRmeasurementsprovidedthemeltdensityatthetesttemperatureandpressureisknown.Thesemethodsareinprinciplealsoapplicabletothermoplasticsforwhichtherheologicalbehaviourisaffectedduringthemeasurementbyphenomenasuchashydrolysis,condensationorcrosslinking,butonlyiftheeffectislimitedinextentandonlyiftherepeatabilityandreproducibilityarewithinanacceptablerange.Formaterialswhichshowsignificantlyaffectedrheologicalbehaviourduringtesting,thesemethodsarenotappropriate.Insuchcases,theuseoftheviscositynumberindilutesolution,determinedinaccordancewiththerelevantpartofISO1628,isrecommendedforcharacterizationpurposes.NOTETheratesofshearinthesemethodsaremuchsmallerthanthoseusedundernormalconditionsofprocessing,andthereforedataobtainedbythesemethodsforvariousthermoplasticsmaynotalwayscorrelatewiththeirbehaviourduringprocessing.Bothmethodsareusedprimarilyinqualitycontrol.
【中国标准分类号】:G31
【国际标准分类号】:83_080_20
【页数】:26P.;A4
【正文语种】:英语
