DIN VDE 0282-807-1994 橡胶绝缘电力导线.提升控制用05RT和05RN橡胶绝缘电缆
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【英文标准名称】:Rubberinsulatedcables,wiresandflexiblecordsforpowerinstallation;rubberinsulatedliftcables05RTand05RN
【原文标准名称】:橡胶绝缘电力导线.提升控制用05RT和05RN橡胶绝缘电缆
【标准号】:DINVDE0282-807-1994
【标准状态】:作废
【国别】:德国
【发布日期】:1994-02
【实施或试行日期】:1994-02-01
【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】:提升机;规范(批准);电缆;开降电缆;电绝缘材料;拖曳电缆;电力电缆;软电缆;绝缘电缆;橡胶绝缘;硫化橡胶;多芯电缆;尺寸;电力传输线路;检验;绝缘;电气工程;试验
【英文主题词】:Dimensions;Electriccables;Electricpowertransmissionlines;Electricalcords;Electricalengineering;Electricalinsulatingmaterials;Flexiblecables;Hoists;Inspection;Insulatedcables;Insulations;Liftcables;Multicorecables;Powercables;Powerlines;Rubberinsulation;Specification(approval);Testing;Trailingcables;Vulcanizedrubber
【摘要】:
【中国标准分类号】:K13
【国际标准分类号】:29_060_20
【页数】:7P;A4
【正文语种】:德语
【英文标准名称】:Sectionalspecification:Radiofrequencycoaxialconnectors;seriesTNC;GermanversionEN122200:1994
【原文标准名称】:分规范.射频同轴连接器.TNC系列
【标准号】:DINEN122200-1996
【标准状态】:现行
【国别】:德国
【发布日期】:1996-07
【实施或试行日期】:
【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】:试验;质量;特性;连接尺寸;射频插头;同轴连接器;电子设备及元件;分规范;射频连接器;电气工程;插头;组件;元部件;电子的
【英文主题词】:Coaxialconnectors;Components;Connectingdimensions;Electricplugs;Electricalengineering;Electronic;Electronicequipmentandcomponents;Highfrequencies;Properties;Quality;Radiofrequencyconnectors;Radio-frequencyplugs;Sectionalspecification;Specification;Testing
【摘要】:ThedocumentrelatestosectionalspecificationforradiofrequencycoaxialconnectorsofseriesTNC.
【中国标准分类号】:L23
【国际标准分类号】:33_120_30
【页数】:38P.;A4
【正文语种】:德语
【英文标准名称】:StandardGuideforStatisticalAnalysisofAcceleratedServiceLifeData
【原文标准名称】:加速使用寿命数据统计分析的标准指南
【标准号】:ASTMG172-2003
【标准状态】:现行
【国别】:
【发布日期】:2003
【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】:G03.08
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:
【英文主题词】:statistical;devloping;life;data;stress;measurement
【摘要】:Thenatureofacceleratedservicelifeestimationnormallyrequiresthatstresseshigherthanthoseexperiencedduringserviceconditionsareappliedtothematerialbeingevaluated.Fornon-constantusestress,suchasexperiencedbytimevaryingweatheroutdoors,itmayinfactbeusefultochooseanacceleratedstressfixedatalevelslightlylowerthan(say90%of)themaximumexperiencedoutdoors.Bycontrollingallvariablesotherthantheoneusedforacceleratingdegradation,onemaymodeltheexpectedeffectofthatvariableatnormal,orusageconditions.Iflaboratoryacceleratedtestdevicesareused,itisessentialtoprovideprecisecontrolofthevariablesusedinordertoobtainusefulinformationforservicelifeprediction.Itisassumedthatthesamefailuremechanismoperatingatthehigherstressisalsothelifedeterminingmechanismattheusagestress.Itmustbenotedthatthevalidityofthisassumptioniscrucialtothevalidityofthefinalestimate.Acceleratedservicelifetestdataoftenshowdifferentdistributionshapesthanmanyothertypesofdata.Thisisduetotheeffectsofmeasurementerror(typicallynormallydistributed),combinedwiththoseuniqueeffectswhichskewservicelifedatatowardsearlyfailuretime(infantmortalityfailures)orlatefailuretimes(agingorwear-outfailures).Applicationsoftheprinciplesinthisguidecanbehelpfulinallowinginvestigatorstointerpretsuchdata.Thechoiceanduseofaparticularaccelerationmodelandlifedistributionmodelshouldbebasedprimarilyonhowwellitfitsthedataandwhetheritleadstoreasonableprojectionswhenextrapolatingbeyondtherangeofdata.Furtherjustificationforselectingmodelsshouldbebasedontheoreticalconsiderations.Note28212;Acceleratedservicelifeorreliabilitydataanalysispackagesarebecomingmorereadilyavailableincommoncomputersoftwarepackages.Thismakesdatareductionandanalysesmoredirectlyaccessibletoagrowingnumberofinvestigators.Thisisnotnecessarilyagoodthingastheabilitytoperformthemathematicalcalculation,withoutthefundamentalunderstandingofthemechanicsmayproducesomeseriouserrors.SeeRef(1).31.1Thisguidebrieflypresentssomegenerallyacceptedmethodsofstatisticalanalysesthatareusefulintheinterpretationofacceleratedservicelifedata.Itisintendedtoproduceacommonterminologyaswellasdevelopingacommonmethodologyandquantitativeexpressionsrelatingtoservicelifeestimation.1.2ThisguidecoverstheapplicationoftheArrheniusequationtoservicelifedata.Itservesasageneralmodelfordeterminingratesatusageconditions,suchastemperature.Itservesasageneralguidefordeterminingservicelifedistributionatusagecondition.Italsocoversapplicationswheremorethanonevariableactsimultaneouslytoaffecttheservicelife.Forthepurposesofthisguide,theaccelerationmodelusedformultiplestressvariablesistheEyringModel.Thismodelwasderivedfromthefundamentallawsofthermodynamicsandhasbeenshowntobeusefulformodelingsometwovariableacceleratedservicelifedata.Itcanbeextendedtomorethantwovariables.1.3Onlythosestatisticalmethodsthathavefoundwideacceptanceinservicelifedataanalyseshavebeenconsideredinthisguide.1.4TheWeibulllifedistributionisemphasizedinthisguideandexamplecalculationsofsituationscommonlyencounteredinanalysisofservicelifedataarecoveredindetail.ItistheintentionofthisguidethatitbeusedinconjunctionwithGuideG166.1.5Theaccuracyofthemodelbecomesmorecriticalasthenumberofvariablesincreasesand/ortheextentofextrapolationfromtheacceleratedstres......
【中国标准分类号】:J04
【国际标准分类号】:03_120_30
【页数】:12P.;A4
【正文语种】: