SAE ARP503 Emergency Evacuation Illumination

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Product Code:SAE ARP503
Title:Emergency Evacuation Illumination
Issuing Committee:A-20ac Crew Station And Interior Lighting Committee
Scope:This Aerospace Recommended Practice (ARP) provides criteria for design and location of power supplies, controls, light fixtures, and associated equipment which are used to provide emergency illumination in transport aircraft, designed to FAR 25 (Ref. 1) for operation undre FAR 91 and FAR 121 (Ref. 2), and also in compliance iwth FAA Advisory Circular AC25.812-1A (Ref. 3).It is not the purpose of an ARP to sepcify design methods to be followed in the accomplishment of the stated objectives.
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【英文标准名称】:Insulationsystemsofelectricalequipment;mechanicalendurancefunctionaltestsforelectricalinsulationsystems;identicalwithIEC60941:1988(report)
【原文标准名称】:电气设备绝缘系统.电气绝缘系统机械疲劳强度功能试验
【标准号】:DINVDE0302-7-1989
【标准状态】:作废
【国别】:德国
【发布日期】:1989-11
【实施或试行日期】:1989-11-01
【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】:材料的机械性能;绝缘系统;电气工程;老化;电驱动装置;材料强度;绝缘;电绝缘材料;耐久性;性能试验;性能试验;试验;寿命;绝缘材料;机械试验;电绝缘;老化试验
【英文主题词】:Ageing(materials);Ageingtests;Durability;Electricalengineering;Electricalinsulatingmaterials;Electricalinsulation;Electrically-operateddevices;Insulatingmaterials;Insulationsystems;Insulations;Life(durability);Mechanicalpropertiesofmaterials;Mechanicaltesting;Performancetesting;Performancetests;Strengthofmaterials;Testing
【摘要】:
【中国标准分类号】:K60;K04
【国际标准分类号】:29_080_30
【页数】:9P.;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】: