【英文标准名称】:Rubberlatices.Methodsoftest.Determinationofboricacidcontentofnaturalrubberlatexconcentrate
【原文标准名称】:橡胶乳.第3部分:试验方法.第12节:天然橡胶乳浓缩物硼酸含量的测定
【标准号】:BS6057Sec.3.12-1992
【标准状态】:作废
【国别】:英国
【发布日期】:1992-08-15
【实施或试行日期】:
【发布单位】:英国标准学会(BSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:络合方法;容量分析;浓缩物;含量测定;化学分析和试验;试验条件;天然橡胶;胶乳;硼酸
【英文主题词】:volumetricanalysis;naturalrubber;testingconditions;determinationofcontent;concentrates;complexingmethods;latices;chemicalanalysisandtesting;boricacid
【摘要】:
【中国标准分类号】:G35
【国际标准分类号】:
【页数】:8P;A4
【正文语种】:英语


【英文标准名称】:Lowvoltagetransformers-Part3:Class2andClass3transformers
【原文标准名称】:低压变压器.第3部分:2类和3类变压器
【标准号】:UL5085-3-2006
【标准状态】:现行
【国别】:美国
【发布日期】:2006-04-17
【实施或试行日期】:
【发布单位】:美国保险商实验所(US-UL)
【起草单位】:UL
【标准类型】:()
【标准水平】:()
【中文主题词】:特性;发电机;低电压;作标记;使用条件;过电流保护装置;电压互感器;性能;正弦的;正弦曲线电压;规范(验收);试验;测试;变压器
【英文主题词】:Characteristics;Electricgenerators;Lowvoltage;Marking;Operatingconditions;Overcurrentprotection;Potentialtransformers;Properties;Sinusoidal;Sinusoidalvoltage;Specification(approval);Testing;Transformers
【摘要】:AsnotedinLowVoltageTransformers-Part1:GeneralRequirements,UL5085-1,orCSAC22.2No.66.1,LowVoltageTransformers-Part1:GeneralRequirements,therequirementsinPart3coverClass2transformersforusewithClass2circuitsinaccordancewiththeNationalElectricalCode,ANSI/NFPA70,ortheCanadianElectricalCode,PartI,CSAC22.1.Theyareintendedforconnectiontoessentiallysinusoidalsupplysources.AdvisoryNote:FortransformersintendedforuseintheUnitedStates,theserequirementsalsocoverClass3transformersforusewithClass3circuitsinaccordancewiththeNationalElectricalCode,ANSI/NFPA70,unlessotherwisespecifiedinthisstandard.SeeAnnexdforClass3requirements.InadditiontotheitemsspecifiedinClause1.3ofPart1,therequirementsofPart3donotcover:a)Powersupplies(atransformerprovidedwitharectifierisconsideredapowersupply);b)Toytransformers;c)Cordandplugconnectedtransformers;d)Directplug-intransformers;e)Transformersintendedforuseinaudio,radio,ortelevisiontypeappliances;orf)Otherspecialtypesoftransformerscoveredinrequirementsforotherelectricaldevicesorappliances.AdvisoryNote:TherequirementsofPart3donotcovertransformersintendedforuseintheUnitedStateshavinganominalprimaryratingofmorethan600Vandtransformershavingovervoltagetapsratedover660V.ThispartisintendedtobeusedinconjunctionwithPart1.ThenumberingoftheclausesinPart3correspondstothenumberedclausesinPart1.TherequirementsinPart1applyunlessmodifiedbyPart3.AClass2transformerthatincludesaseparatecurrent-limitingimpedancesuchasaresistororapositivetemperaturecoefficientdevice(PTC)iscoveredbytheserequirements.AClass2transformerthatincludesaresonanceregulatingcircuitiscoveredbytheserequirements.
【中国标准分类号】:K41
【国际标准分类号】:29_180
【页数】:
【正文语种】:英语