ANSI/IEEE C37.26-2003 低压感应测试电路功率因数的测量方法指南
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来源:标准资料网
【英文标准名称】:GuideforMethodsofPowerFactorMeasurementforLow-VoltageInductiveTestCircuits
【原文标准名称】:低压感应测试电路功率因数的测量方法指南
【标准号】:ANSI/IEEEC37.26-2003
【标准状态】:现行
【国别】:美国
【发布日期】:2003
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:电气工程;低电压;测量技术;性能
【英文主题词】:Electricalengineering;Lowvoltage;Measuringtechniques;Performance
【摘要】:Describesthreemethodsusedinthemeasurementofthepowerfactorofinductivelow-voltage(1000Vandless)testcircuits.Thesemethodsare:1)Radiomethod,2)dcdecrementmethod,and3)Phaserelationshipmethod.
【中国标准分类号】:K04
【国际标准分类号】:29_130_20
【页数】:
【正文语种】:英语
【英文标准名称】:Resilientfloorcoverings-Polyvinylchloridefloorcoveringsonafilledfibrousbacking-Specification
【原文标准名称】:弹性地板覆盖物.填充纤维基布上的聚氯乙烯地板覆盖物.规范
【标准号】:BSEN13413-2002
【标准状态】:现行
【国别】:英国
【发布日期】:2002-03-05
【实施或试行日期】:2002-03-05
【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】:PVC涂层;弹性织物;柔性;弹性的;软木制品;矿物纤维;分类;低层;聚氯乙烯;塑料;地板覆盖物;特性;定义;规范;规范(验收);作标记
【英文主题词】:Classification;Cork;Definition;Definitions;Elastic;Elasticfabrics;Flexible;Floorcoverings;Lowerlayers;Marking;Mineralfibres;Plastics;Polyvinylchloride;Properties;PVCcoverings;Specification;Specification(approval)
【摘要】:
【中国标准分类号】:Q17
【国际标准分类号】:97_150
【页数】:12P;A4
【正文语种】:英语
【英文标准名称】:StandardTestMethodforMeasuringStrengthandShearModulusofNonrigidAdhesivesbytheThick-AdherendTensile-LapSpecimen
【原文标准名称】:用厚粘附体拉力搭接样品测定软质胶粘剂的强度和剪切模数的试验方法
【标准号】:ASTMD3983-1998(2004)
【标准状态】:现行
【国别】:
【发布日期】:1998
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:D14.70
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:测量;胶粘剂;试样;剪切强度;粘结强度;试验
【英文主题词】:metal;nonrigidadhesives;shearmodulus;shearstrength;testmethod;thick-adherendtensile-lapspecimen;wood
【摘要】:Thistestmethodiscapableofprovidingshearmodulusandshearstrengthvaluesforadhesiveswithaccuracysuitableforusebydesignengineersinpredictingthecharacteristicsofbuildingassembliesbondedwithnonrigidadhesives.Adhesiveformulatorswillalsofindthemethodusefulduringthedevelopmentofnewadhesivesystems.Ingeneral,thethickadherendlap-sheartestisausefultoolinresearchduringstudiesofbothshort-andlong-termload-deformationpropertiesofadhesives.Thisthickadherendlap-sheartestyieldsauniformityofstressdistributionapproachingthatobtainedinthintubularbuttjointssubjectedtotorsion,whichisconsideredtobeaconditionofpureshear.Theuseriscautionedthatpureshearstrengthcannotbeobtainedbythistestmethod,becausesometensileandcompressionstressesandstressconcentrationsarepresentinthejoint.Theestimateofshearstrengthbythistestmethodwillbeconservative.Ifpureshearstrengthisdemanded,thenTestMethodE229shouldbeused.1.1Thistestmethoddescribesamethodofmeasuringtheshearmodulusandrupturestressinshearofadhesivesinbondedjoints.Themethodemployslap-shearspecimenswithwood,metal,orcompositeadherends,withadhesiveshavingshearmodulirangingupto700MPa(100000psi).Thistestmethodissuitablegenerallyforjointsinwhichtheratioofadherendtensilemodulustoadhesiveshearmodulusisgreaterthan300to1.Itisnotsuitableforadhesivesthathaveahighshearmodulusinthecuredstateandthatalsorequireeliminationofvolatileconstituentsduringcure.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Thevaluesgiveninparenthesesareforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G38
【国际标准分类号】:
【页数】:11P.;A4
【正文语种】:
