DIN EN 61558-2-9-2011 变压器,电抗器,电源装置及其组合的安全.第2-9部分:III级手提钨丝灯用变压器和电源装置的特殊要求和试验(IEC61558-2-9-2010);德文版本EN
时间:2024-05-28 19:03:34 来源: 标准资料网 作者：标准资料网 阅读：8363
【英文标准名称】:Safetyoftransformers,reactors,powersupplyunitsandcombinationsthereof-Part2-9:ParticularrequirementsandtestsfortransformersandpowersupplyunitsforclassIIIhandlampsfortungstenfilamentlamps(IEC61558-2-9:2010);GermanversionEN
【原文标准名称】:变压器,电抗器,电源装置及其组合的安全.第2-9部分:III级手提钨丝灯用变压器和电源装置的特殊要求和试验(IEC61558-2-9-2010);德文版本EN
【标准号】:DINEN61558-2-9-2011
【标准状态】:现行
【国别】:德国
【发布日期】:2011-09
【实施或试行日期】:2011-09-01
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Definitions;Dimensioning;Electricalsafety;Firesafety;Hand-portablelamps;Lamps;Powersupplysystem;Powertransformers;Protectionagainstelectricshocks;Safety;Safetyisolatingtransformers;Short-circuitprotection;Testing;Transformers;Tungstenlamps
【摘要】:
【中国标准分类号】:K41
【国际标准分类号】:29_180
【页数】:18P.;A4
【正文语种】:德语
【英文标准名称】:StandardTestMethodforMeasurementofNormalIncidenceSoundTransmissionofAcousticalMaterialsBasedontheTransferMatrixMethod
【原文标准名称】:基于传输矩阵法测量声学材料的垂直入射传输的标准试验方法
【标准号】:ASTME2611-2009
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【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】:E33.03
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:4-microphone;impedancetube;normalincidence;transferfunction;transfermatrix;transmissionloss
【摘要】:Thereareseveralpurposesofthistest:Fortransmissionloss:(a)tocharacterizethesoundinsulationcharacteristicsofmaterialsinalessexpensiveandlesstimeconsumingapproachthanTestMethodE90andISO140-3(x201C;reverberantroommethodsx201D;),(b)toallowsmallsamplestestedwhenlargersamplesareimpossibletoconstructortotransport,(c)toallowarapidtechniquethatdoesnotrequireanexperiencedprofessionaltorun.Fortransfermatrix:(a)todetermineadditionalacousticpropertiesofthematerial;(b)toallowcalculationofacousticpropertiesofbuilt-uporcompositematerialsbythecombinationoftheirindividualtransfermatrices.Therearesignificantdifferencesbetweenthismethodandthatofthemoretraditionalreverberantroommethod.Specifically,inthisapproachthesoundimpingesonthespecimeninaperpendiculardirection(x201C;normalincidencex201D;)only,comparedtotherandomincidenceoftraditionalmethods.Additionally,revererationroommethodsspecifycertainminimumsizesfortestspecimenswhichmaynotbepracticalforallmaterials.Atpresentthecorrelation,ifany,betweenthetwomethodsisnotknown.Eventhoughthismethodmaynotreplicatethereverberantroommethodsformeasuringthetransmissionlossofmaterials,itcanprovidecomparisondataforsmallspecimens,somethingthatcannotbedoneinthereverberantroommethod.Normalincidencetransmissionlossmayalsobeusefulincertainsituationswherethematerialisplacedwithinasmallacousticalcavityclosetoasoundsource,forexample,aclosely-fittedmachineenclosureorportableelectronicdevice.Transmissionlossisnotonlyapropertyofamaterial,butisalsostronglydependentonboundaryconditionsinherentinthemethodanddetailsofthewaythematerialismounted.Thismustbeconsideredintheinterpretationoftheresultsobtainedbythistestmethod.Thequantitiesaremeasuredasafunctionoffrequencywitharesolutiondeterminedbythesamplingrate,transformsize,andotherparametersofadigitalfrequencyanalysissystem.Theusablefrequencyrangedependsonthediameterofthetubeandthespacingbetweenthemicrophonepositions.Anextendedfrequencyrangemaybeobtainedbyusingtubeswithvariousdiametersandmicrophonespacings.Theapplicationofmaterialsintoacousticalsystemelementswillprobablynotbesimilartothistestmethodandthereforeresultsobtainedbythismethodmaynotcorrelatewithperformancein-situ.1.1Thistestmethodcoverstheuseofatube,fourmicrophones,andadigitalfrequencyanalysissystemforthemeasurementofnormalincidenttransmissionlossandotherimportantacousticpropertiesofmaterialsbydeterminationoftheacoustictransfermatrix.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:A59
【国际标准分类号】:17_140_01
【页数】:14P.;A4
【正文语种】:英语
【英文标准名称】:Pipe,Steel,BlackandHot-Dipped,Zinc-Coated,WeldedandSeamless
【原文标准名称】:黑色镀锌与热浸镀锌的焊接和无缝钢管
【标准号】:ASTMA53-1996
【标准状态】:作废
【国别】:美国
【发布日期】:1996
【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】:管道;管道配件;钢;管;浸涂;锌覆层
【英文主题词】:dipcoating;zinccoatings;pipefittings;steels;pipes;pipelines
【摘要】:
【中国标准分类号】:H48
【国际标准分类号】:23_040_10;77_140_70
【页数】:
【正文语种】:英语