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【英文标准名称】:Electromagneticcompatibility(EMC)-Part4-30:Testingandmeasurementtechniques;Powerqualitymeasurementmethods
【原文标准名称】:电磁兼容性(EMC).第4-32部分:试验和测量技术.功率质量测量方法
【标准号】:IEC61000-4-30-2003
【标准状态】:作废
【国别】:国际
【发布日期】:2003-02
【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】:电磁试验;测量技术;定义;电气设备;电力系统;试验;电气工程;EMC电磁兼容性;测量方法;电磁兼容性;干扰抑制;电气器具;电磁学
【英文主题词】:Classes;Definition;Definitions;Electricappliances;Electricpowersystems;Electricalappliances;Electricalengineering;Electromagneticcompatibility;Electromagnetictests;Electromagnetism;EMC;Inspection;Interferencerejections;Measurement;Measuringincertainity;Measuringtechniques;Methodsformeasuring;Powerfrequency;Quality;Specification(approval);Supplyvoltages;Testing;Voltage
【摘要】:ThispartofIEC61000-4definesthemethodsformeasurementandinterpretationofresultsforpowerqualityparametersin50/60Hza.c.powersupplysystems.Measurementmethodsaredescribedforeachrelevanttypeofparameterintermsthatwillmakeitpossibletoobtainreliable,repeatableandcomparableresultsregardlessofthecompliantinstrumentbeingusedandregardlessofitsenvironmentalconditions.Thisstandardaddressesmeasurementmethodsforinsitumeasurements.Measurementofparameterscoveredbythisstandardislimitedtothosephenomenathatcanbeconductedinapowersystem.Theseincludethevoltageand/orcurrentparameters,asappropriate.Thepowerqualityparametersconsideredinthisstandardarepowerfrequency,magnitudeofthesupplyvoltage,flicker,supplyvoltagedipsandswells,voltageinterruptions,transientvoltages,supplyvoltageunbalance,voltageandcurrentharmonicsandinterharmonics,mainssignallingonthesupplyvoltageandrapidvoltagechanges.Dependingonthepurposeofthemeasurement,allorasubsetofthephenomenaonthislistmaybemeasured.Thisstandardisaperformancespecification,notadesignspecification.Theuncertaintytestsintherangesofinfluencequantitiesinthisstandarddeterminetheperformancerequirements.Thisstandardgivesmeasurementmethodsbutdoesnotsetthresholds.Theeffectsoftransducersbeinginsertedbetweenthepowersystemandtheinstrumentareacknowledgedbutnotaddressedindetailinthisstandard.Precautionsoninstallingmonitorsonlivecircuitsareaddressed.
【中国标准分类号】:L06
【国际标准分类号】:33_100_01
【页数】:98P;A4
【正文语种】:英语


【英文标准名称】:Metallictubeconnectionsforfluidpowerandgeneraluse-24°coneconnectorswithO-ringweld-onnipples
【原文标准名称】:液压及通用金属管连接件.有O形面焊接管接头的24度锥形连接件
【标准号】:BSENISO8434-4-2000
【标准状态】:作废
【国别】:英国
【发布日期】:1997-01-15
【实施或试行日期】:1997-01-15
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:短管接头;管道配件;环形密封圈;圆锥形;螺纹管接头;螺柱;管接头;液压传动系统;不锈钢;三通管;焊接;设计;作标记;角(几何学);工作压力;使用说明;温度;钢;公差(测量);名称与符号;弯头;非合金钢;气动传动系统
【英文主题词】:Dimensions;Fluidcircuits;Fluidtechnology;Marking;Metalconduits;Metalpipes;Metaltubes;O-rings;Pipecouplings;Pipefittings;Pipes;Screwedjoints;Weld-onends
【摘要】:ThispartofISO8434specifiesgeneralanddimensionalrequirementsforthedesignandperformanceof24°coneconnectorswithO-ringweld-onnipplesthataresuitableforusewithsteelandstainlesssteeltubeswithoutsidediametersfrom6mmto42mm,inclusive.ThesefittingsareforuseinfluidpowerandgeneralapplicationswhereelastomericsealscanbeusedwithinthelimitsofpressureandtemperaturespecifiedinthispartofISO8434.SseriesfittingsinaccordancewiththispartofISO8434maybeusedatworkingpressuresupto63MPa(630bar).LseriesfittingsinaccordancewiththispartofISO8434maybeusedatworkingpressuresupto25MPa(250bar)(seeTable1).TheyareintendedfortheconnectionoftubesandhosefittingstoportsinaccordancewithISO6149-1,ISO1179-1andISO9974-1.NOTE1Fornewdesignsinhydraulicfluidpowerapplications,seetherequirementsgivenin9.6.NOTE2Foruseunderconditionsoutsidethepressureand/ortemperaturelimitsspecified,see5.4.note:1)lbar=0,1MPa=10Pa;1MPa=1N/mm.
【中国标准分类号】:J20
【国际标准分类号】:23_100_40
【页数】:28P.;A4
【正文语种】:英语