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IEC 61000-4-17-1999 电磁兼容性(EMC)第4-17部分:试验和测量技术直流输入电力端口上的纹抗扰度试验

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【英文标准名称】:Electromagneticcompatibility(EMC)-Part4-17:Testingandmeasuringtechniques-Rippleond.c.inputpowerport,immunitytest
【原文标准名称】:电磁兼容性(EMC)第4-17部分:试验和测量技术直流输入电力端口上的纹抗扰度试验
【标准号】:IEC61000-4-17-1999
【标准状态】:现行
【国别】:国际
【发布日期】:1999-06
【实施或试行日期】:
【发布单位】:国际电工委员会(IX-IEC)
【起草单位】:IEC/SC77A
【标准类型】:()
【标准水平】:()
【中文主题词】:输入功率;试验;电磁试验;测量技术;干扰抑制;电气器具;电磁兼容性;电磁兼容性;抗扰性;电气工程
【英文主题词】:Alternatingvoltages;Definitions;Degreeofsharpness;Directcurrent;Direct-currentsystem;Electricappliances;Electricmains;Electricalappliances;Electricalengineering;Electromagneticcompatibility;Electromagnetictests;Electronicinstruments;EMC;Immunity;Influencequantities;Inputpower;Interferencerejections;Interferences;Laboratorytesting;Measurement;Measuringtechniques;Rectifiers;Ripple;Shafts;Testreports;Testset-ups;Testing;Testinggenerators;Voltage
【摘要】:ThispartoflEC61000definestestmethodsforimmunitytorippleatthed.c.inputpowerportofelectricalorelectronicequipment.Thisstandardisapplicabletolow-voltaged.c.powerportsofequipmentsuppliedbyexternalrectifiersystems,orbatterieswhicharebeingcharged.Theobjectofthisstandardistoestablishacommonandreproduciblebasisfortesting,inalaboratory,electricalandelectronicequipmentwhensubjectedtoripplevoltagessuchasthosegeneratedbyrectifiersystemsand/orauxiliaryservicebatterychargersoverlayingond.c.powersupplysources.Thisstandarddefines-testvoltagewaveform;-rangeoftestlevels;-testgenerator;-testset-up;-testprocedure.Thetestdescribedhereafterappliestoelectricalorelectronicequipmentandsystems.Italsoappliestomodulesorsubsystemswhenevertheequipmentundertest(EUT)ratedpowerisgreaterthanthetestgeneratorcapacityspecifiedinclause6.Thistestdoesnotapplytoequipmentconnectedtobatterychargersystemsincorporatingswitchmodeconverters.Thisstandarddoesnotspecifytheteststobeappliedtoparticularapparatusorsystems.ItsmainaimistogiveageneralbasicreferencetoIECproductcommittees.Theseproductcommittees(orusersormanufacturersofequipment)remainresponsiblefortheappropriatechoiceofthetestandtheseverityleveltobeappliedtotheirequipment.Dedicatedtestproceduresareinusefortestingspecificcategoriesofelectricalorelectronicequipment,e.g.equipmentconnectedtod.c.supplynetworkoftelephoneswitchingcentres;therelatedproductcommitteesshouldevaluatetherelevanceandapplicabilityofthetestprocedurespecifiedinthisbasicstandard.
【中国标准分类号】:L06
【国际标准分类号】:33_100_20
【页数】:27P.;A4
【正文语种】:英语


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基本信息
标准名称:切制MJ内螺纹工艺底孔基本尺寸偏差
中标分类:
发布日期:1989-05-13
实施日期:1989-12-01
首发日期:1900-01-01
作废日期:1900-01-01
出版日期:1900-01-01
页数:6页
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所属分类:
【英文标准名称】:StandardTestMethodforWindloadResistanceofRigidPlasticSiding
【原文标准名称】:硬质聚氯乙烯挡板耐风载荷试验方法
【标准号】:ASTMD5206-2006a
【标准状态】:现行
【国别】:
【发布日期】:2006
【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】:D20.24
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:门窗头线条板;氯化物;镶面(建筑物);正面;隔墙;聚氯乙烯;耐力;材料强度;试验;氯乙烯;墙;护墙板;风荷载
【英文主题词】:PVCsiding;plasticsiding;sidingfailuremodes;testmethods;windloadresistance
【摘要】:Thistestmethodisastandardprocedurefordeterminingwindloadresistanceofrigidplasticsidingunderspecifieduniformstaticpressuredifference.Thistypicallyisintendedtorepresenttheeffectsofwindloadsonexteriorbuildingsurfaces.Theactualloadingonbuildingsurfacesisquitecomplex,varyingwithwinddirection,time,heightaboveground,buildingshape,terrain,surroundingstructures,andotherfactors.DesignwindpressureisselectedforspecificgeographicallocationsfromwindvelocitymapspreparedbytheNationalWeatherServiceorothersources.RefertoAnnexA1ofSpecificationD3679foradditionaldetailedinformationrelatingtouseofthistestmethodforevaluationofrigidpoly(vinylchloride)(PVC)siding.Note28212;Inapplyingtheresultsofthistestmethod,notethattheperformanceofrigidPVCsidingisafunctionofinstallation,andthespecimenmayormaynottrulyrepresenttheactualapplication.Inservice,performancewillalsodependontherigidityofsupportingconstruction,andontheresistanceofothercomponentstodeteriorationbyvariouscauses,tothermalexpansionandcontraction,etc.1.1ThistestmethoddescribesmethodsfortestingandevaluatingwindloadresistanceofrigidplasticsidingwhenfastenedinaccordancewithPracticeD4756.1.2Theproperuseofthistestmethodrequiresaknowledgeoftheprinciplesofpressuremeasurement.1.3Thistestmethoddescribestheapparatusandtheprocedurestobeusedforeitheraspecificstatictestpressure(ProcedureA)orultimatetestpressurevalues(ProcedureB)applieduniformlytoaspecimen.Note1-ThereisnoknownISOequivalenttothistestmethod.1.4Thevaluesexpressedininch-poundunitsaretoberegardedasthestandard.TheSIequivalentsinparenthesesareforinformationonly.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecificprecautionarystatements,seeSection7.
【中国标准分类号】:Q17
【国际标准分类号】:91_060_10
【页数】:4P.;A4
【正文语种】: