【英文标准名称】:Mathematicalexpressionsforreliability,availability,maintainabilityandmaintenancesupportterms
【原文标准名称】:可靠性、可用性、维护性和维护支持术语的数学表示式
【标准号】:IEC61703-2001
【标准状态】:现行
【国别】:国际
【发布日期】:2001-09
【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/TC56
【标准类型】:()
【标准水平】:()
【中文主题词】:数学;维修;电气工程;定义;功能;可靠度;符号;维修性;词汇;有效性;算术
【英文主题词】:Arithmetic;Arithmetical;Availability;Calculatingmethods;Computerhardware;Computersoftware;Computertechnology;Definitions;Electricalengineering;Failureanalysis;Failurerates;Formulae(mathematics);Functions;Informationtechnology;Maintainability;Maintenance;Mathematicalcalculations;Mathematicalsymbols;Mathematics;Operatability;Reliability;Repairs;Servicelife;Symbols;Vocabulary
【摘要】:ThisInternationalStandardprovidesmathematicalexpressionsforreliability,availability,maintainabilityandmaintenancesupportmeasuresdefinedinIEC60050-191.Thefollowingclassesofitemsareconsideredseparatelyinthisstandard:-non-repaireditems;-repaireditemswithzerotimetorestoration;-repaireditemswithnon-zerotimetorestoration.Inordertokeepthemathematicalformulaeassimpleaspossible,thefollowingbasicmathematicalmodelsareusedtoquantifydependabilitymeasures:-randomvariable(timetofailure)fornon-repaireditems;-simple(ordinary)renewalprocessforrepaireditemswithzerotimetorestoration;-simple(ordinary)alternatingrenewalprocessforrepaireditemswithnon-zerotimetorestoration.Tofacilitatelocationofthefulldefinition,theIEC60050-191referenceforeachtermisshown(inparenthesis)immediatelyfollowingeachterm,forexample:meantimetorestoration[191-13-08]Theapplicationofeachdependabilitymeasureisillustratedbymeansofasimpleexample.NOTEThisstandardismainlyapplicabletohardwaredependability,butmanytermsandtheirdefinitionsmaybeappliedtoitemscontainingsoftware.SomeofthesoftwaredependabilityaspectsareexplainedinannexD.
【中国标准分类号】:L05
【国际标准分类号】:03_120_30;29_020
【页数】:103P.;A4
【正文语种】:英语


【英文标准名称】:Low-voltageswitchgearandcontrolgear.Contactorsandmotor-starters.ACsemiconductormotorcontrollersandstarters
【原文标准名称】:低压开关设备和控制设备.接触器和电动机起动器.交流半导体电动机控制器和起动器
【标准号】:BSEN60947-4-2-2012
【标准状态】:现行
【国别】:英国
【发布日期】:2012-07-31
【实施或试行日期】:2012-07-31
【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】:交流电流;断路器;接触器;电动机接触器(开关);控制装置;控制器;电气工程;感应电动机;检验;低电压;低压电器;低压开关设备;电动机起动器;半导体连接器;半导体器件;半导体工程;半导体;短路保护;固体闸流管;起动器;开关装置;开关设备;试验
【英文主题词】:Alternatingcurrent;Circuit-breakers;Contactors;Contactorsformotors;Controldevices;Controllers;Electricalengineering;Inductionmotors;Inspection;Lowvoltage;Low-voltageequipment;Low-voltageswitchgear;Motorstarters;Semiconductorcontactors;Semiconductordevices;Semiconductorengineering;Semiconductors;Short-circuitprotection;Solid-statethyratrons;Starters;Switchgear;Testing
【摘要】:
【中国标准分类号】:K30
【国际标准分类号】:29_130_20
【页数】:100P.;A4
【正文语种】:英语