【英文标准名称】:Electromechanicalelementaryrelays-Reliability
【原文标准名称】:机电式初等继电器.可靠度
【标准号】:BSEN61810-2-2005
【标准状态】:作废
【国别】:英国
【发布日期】:2005-12-09
【实施或试行日期】:2005-12-09
【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】:"有"或"无"继电器;触点;接触性能;触点继电器;定义;电气工程;机电的;机电学;环境条件;评定;故障;失效率;寿命(耐久性);寿命试验;测量;测量继电器;操作方式;参数;特性;质量保证;额定电流;额定电压;额定值;继电器;可靠度;安全工程;规范(验收);开关间隙;电信;试验电路;试验结果;测试;测试条件;魏布尔;魏布尔分布;工作方式
【英文主题词】:All-or-nothingrelays;Contact;Contactbehaviour;Contactrelays;Definition;Definitions;Electricalengineering;Electromechanical;Electromechanics;Environmentalcondition;Evaluations;Failure;Failurerates;Life(durability);Lifetest;Measurement;Measuringrelays;Modeofoperation;Parameters;Properties;Qualityassurance;Ratedcurrent;Ratedvoltage;Ratings;Relays;Reliability;Safetyengineering;Specification(approval);Switchclearance;Telecommunication;Telecommunications;Testcircuits;Testresults;Testing;Testingconditions;Weibull;Weibulldistribution;Workingmode
【摘要】:ThispartofIEC61810coverstestconditionsandprovisionsfortheevaluationofendurancetestsusingappropriatestatisticalmethodstoobtainreliabilitycharacteristicsforrelays.Thisstandardappliestoelectromechanicalelementaryrelaysconsideredasnon-repaireditems(i.e.itemswhicharenotrepairedafterfailure),wheneverarandomsampleofitemsissubjectedtoatestofcyclestofailure(CTF).Thelifetimeofarelayisusuallyexpressedinnumberofcycles.Therefore,whenevertheterms“time”or“duration”areusedinthebasicstandardIEC61649,thistermistobeunderstoodtomean“cycles”.However,withagivenfrequencyofoperation,thenumberofcyclescanbetransformedintorespectivetimes(e.g.TTF,timestofailure).Thefailurecriteriaandtheresultingcharacteristicsofelementaryrelaysdescribingtheirreliabilityinnormalusearespecifiedinthisstandard.Arelayfailureoccurswhenthespecifiedfailurecriteriaaremet.Asthefailurerateforelementaryrelayscannotbeconsideredasconstant,particularlyduetowear-outmechanisms,thetimestofailureoftesteditemstypicallyshowaWeibulldistribution.Thisstandardprovidesnumericalmethodstocalculateapproximatevaluesforthetwo-parameterWeibulldistribution,aswellaslowerconfidencelimits.
【中国标准分类号】:K33
【国际标准分类号】:29_120_70
【页数】:30P.;A4
【正文语种】:英语