【英文标准名称】:Electricalapparatusforexplosivegasatmospheres-Part26:Construction,testandmarkingofGroupⅡCategory1Gelectricalapparatus
【原文标准名称】:爆炸性气体环境用电气设备.II组IG类电气设备的制造、试验和标记
【标准号】:BSEN60079-26-2004
【标准状态】:作废
【国别】:英国
【发布日期】:2005-02-02
【实施或试行日期】:2005-02-02
【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】:通风;防护电气设备;电气设备;爆炸性;分类系统;潜在爆炸物;危险区域;大气;爆炸危险;爆炸性环境;保护形式;隔墙;电驱动装置;易燃材料;保护措施;设计;定义;试验;分类;易燃性;设备;防爆;炸药;燃烧气体;爆炸区;规范(验收);作标记;安全要求;电气工程;安全;可燃性环境;多语种的
【英文主题词】:Atmosphere;Burninggases;Classification;Classificationsystems;Dangerzones;Definition;Definitions;Design;Electricappliances;Electricalengineering;Electricalequipment;Electricalinstallations;Electrically-operateddevices;Equipment;Explosionarea;Explosionhazard;Explosionprotection;Explosionsecurity;Explosion-proof;Explosive;Explosiveatmospheres;Explosives;Flammableatmospheres;Flammablematerials;Inflammable;Marking;Multilingual;Partitions;Potentiallyexplosivematerials;Protectedelectricalequipment;Protectivemeasures;Safety;Safetyrequirements;Specification(approval);Testing;Typeofprotection;Ventilation
【摘要】:ThispartofIEC60079specifiestheparticularrequirementsforconstruction,testandmarkingforelectricalapparatusofGroupⅡintendedforuseinZone0asdefinedinIEC60079-10.Thiselectricalapparatus,withintheoperationalparametersspecifiedbythemanufacturer,ensuresaveryhighlevelofprotectionthatincludesrarefaultsrelatedtotheapparatusortwofaultsoccurringindependentlyofeachother.NOTE1Amalfunctionmayresultfromafailureofthecomponentpartsoftheelectricalapparatusorfromanticipatedexternallyappliedinfluences.Twoindependentmalfunctionswhichmayoccurmorefrequentlyandwhich,separately,wouldnotcreateanignitionhazardbutwhich,incombination,couldcreateapotentialignitionhazard,shouldberegardedasoccurringtogethertoformararefault.ThiselectricalapparatusisintendedforuseinZone0hazardousareas,inwhichexplosivegasatmospherescausedbymixturesofairandgases,vapoursormistsundernormalatmosphericconditionsarepresentcontinuously,forlongperiodsorfrequently.ThisstandardalsoappliestoapparatusmountedacrosstheboundarybetweenZone0andZone1.EXAMPLE:Inthewallofastoragevessel.ThisstandardalsoappliestoapparatusinstalledoutsideZone0,butelectricallyconnectedtoapparatusinsideZone0(associatedapparatus).ThisstandardsupplementsthegeneralrequirementsinIEC60079-0andtherequirementsofthestandardizedtypesofprotection,inaccordancewiththeIEC60079series,toadaptthelevelofsafetyprovidedbythosestandardstotheveryhighlevelofriskinZone0.NOTE2IndesigningapparatusforoperationinexplosivegasatmospheresunderconditionsotherthantheatmosphericconditionsgiveninIEC60079-0,thisstandardmaybeusedasaguide.However,additionaltestingisrecommendedrelatedspecificallytotheintendedconditionsofuse.Thisisparticularlyimportantwhenthetypesofprotection'Flameproofenclosure'(IEC60079-1)and'Intrinsicsafety'(IEC60079-11)areapplied.NOTE3TheclassificationofhazardousareasinzonesisdefinedinIEC60079-10.NOTE4Theremaybeothernon-electricalsourcesofignition(forexampleultrasonic,opticalorionizingradiation)thatarenotaddressedbythisstandard;theseshouldalsobetakenintoconsideration(see,forexample,EN1127-1).
【中国标准分类号】:K35
【国际标准分类号】:13_230;29_260_20
【页数】:20P.;A4
【正文语种】:英语


【英文标准名称】:D.C.bridgesformeasuringresistance
【原文标准名称】:测量电阻用直流电桥修改1
【标准号】:IEC60564AMD1-1981
【标准状态】:现行
【国别】:国际
【发布日期】:1981
【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/TC85
【标准类型】:()
【标准水平】:()
【中文主题词】:电气工程;直流电流;安全要求;测量;电阻测量电桥;电阻器;电桥;电阻测量
【英文主题词】:Bridges(electric);Bridgesforresistancemeasurement;Circuits;Datum;Defects;Definitions;Directcurrent;Directvoltage;Electricalengineering;Electricalmeasuringinstruments;Leakagecurrents;Measurement;Measuringinstruments;Precision;Resistancemeasurement;Resistors;Resolution;Safetyengineering;Safetyrequirements;Shields;Specification(approval);Storage;Symbols;Temperature-riselimit;Tolerances(measurement)
【摘要】:AmendsIECPublication564byvariousadditionsandreplacements,deletionsandmodifications.
【中国标准分类号】:N25
【国际标准分类号】:17_220_20
【页数】:
【正文语种】:英语