标准资料网-标准资料免费资源平台

【英文标准名称】:Telecommunicationcordwithtinselwires;textil-insulation,singleconductor,forindoor
【原文标准名称】:金属丝线的通信软线.室内用带纺织绝缘套的单导体
【标准号】:DIN47452-1981
【标准状态】:作废
【国别】:德国
【发布日期】:1981-04
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:低电压;电信用软线;绝缘;电信;电气工程;尺寸
【英文主题词】:Cordsfortelecommunication;Dimensions;Electricalengineering;Insulations;Lowvoltage;Telecommunication
【摘要】:Telecommunicationcordwithtinselwires;textil-insulation,singleconductor,forindoorFürdenGeltungsbereichdieserNormbestehenkeineentsprechendenregionalenoderinternationalenNormen.
【中国标准分类号】:L91
【国际标准分类号】:33_120_20
【页数】:2P;A4
【正文语种】:德语


【英文标准名称】:Measurementoflow-frequencymagneticandelectricfieldswithregardtoexposureofhumanbeings-Specialrequirementsforinstrumentsandguidanceformeasurements
【原文标准名称】:关于人体暴露的低频电场和磁场的测量仪表的特殊要求和测量指南
【标准号】:IEC61786-1998
【标准状态】:现行
【国别】:国际
【发布日期】:1998-08
【实施或试行日期】:
【发布单位】:国际电工委员会(IEC)
【起草单位】:IEC/TC85
【标准类型】:()
【标准水平】:()
【中文主题词】:电学测量;测量仪器;电磁学;测量设备;电学测量仪表;低频;测量技术;规范(验收);磁场;电气工程;电场
【英文主题词】:
【摘要】:ThisInternationalStandardprovidesguidanceformeasuringthesteady-stateroot-mean-square(r.m.s.)valuesofquasi-staticmagneticandelectricfieldswhichhaveafrequencycontentintherange15Hzto9kHz.Sourcesofquasi-staticfieldsincludedevicesthatoperateatpowerfrequenciesandproducepowerfrequencyandpowerfrequencyharmonicfields,aswellasdevicesthatproducefieldsindependentofthepowerfrequency.Themagnituderangescoveredbythisstandardare100nTto100mTand1V/mto50kV/mformagneticfieldsandelectricfields,respectively.Whenmeasurementsoutsidethisrangeareperformed,mostoftheprovisionsofthisstandardwillstillapply,butcertainprovisionssuchasspecifieduncertaintyandcalibrationproceduremayneedmodification.Specifically,thisstandard-definesterminology;-identifiesrequisitefieldmeterspecifications;-indicatesmethodsofcalibration;-definesrequirementsoninstrumentationuncertainty;-describesgeneralcharacteristicsoffields;-surveysoperationalprinciplesofinstrumentation;-describesmeasurementmethodsthatachievedefinedgoalspertainingtohumanexposure.Sourcesofuncertaintyduringcalibrationandmeasurementsarealsoidentifiedandguidanceisprovidedonhowtheyshouldbecombinedtodeterminetotalmeasurementuncertainty.Inregardtoelectricfieldmeasurements,thisstandardconsidersonlythemeasurementoftheunperturbedelectricfieldstrengthatapointinspace(i.e.theelectricfieldpriortotheintroductionofthefieldmeterandoperator)oronconductingsurfaces.NOTE-Someseparationbetweenthenormativemeasurementrequirementsinclauses5and6andtheexamplemeasurementprotocolsandguidanceformeasurementsinannexesDandEisunavoidablebecauseofformatrequirements.
【中国标准分类号】:K04
【国际标准分类号】:17_220_20
【页数】:177P;A4
【正文语种】:英语