【英文标准名称】:IEEEStandardsforLocalandMetropolitanAreaNetworks:CommonDefinitionsandProceduresforIEEE802ManagementInformation
【原文标准名称】:局域网和城域网:IEEE802管理信息的通用定义和程序
【标准号】:IEEE802.1F-1993
【标准状态】:作废
【国别】:美国
【发布日期】:1993
【实施或试行日期】:
【发布单位】:美国电气电子工程师学会(US-IEEE)
【起草单位】:IEEE
【标准类型】:()
【标准水平】:()
【中文主题词】:局域网;定义;定义;人类;信息技术;电信;城域;数据处理;通信网;城域网;合格试验;数据电路;局部地区网络
【英文主题词】:communicationnetworks;lan;definition;metropolitanareanetworks;telecommunications;dataprocessing;localareanetworks;metropolitanareas;datacircuit;conformitytesting;man;informationtechnology;telecommunication;definitions
【摘要】:Thisstandardprovidesthefollowingtwotypesofinformationtothedevelopersoflayer-,sublayer-,orresource-specificmanagementspecifications:a)Definitionofcommonmanagementinformationsuchasattributes,managedobjectclasses,packages,behaviours,andencodingsofinformationusedbyLAN/MANManagement.b)CommonproceduresrequiredforspecificationofLAN/MANManagement,suchasrelationshipstoothercommonmanagementinformationspecificationsandmethodsforregisteringmanagementinformationwithinIEEE802standards.ThisstandardprovidesassistanceandguidancetothedevelopersofLAN/MANmanagementspecificationsthatwill—Reduceduplicationofeffortbyidentifyingcommonlyusefuldefinitionsandprocedures.—Encourageconsistencybetweensuchspecifications.—EncouragethedevelopmentofsuchspecificationsinamannerthatwillensurecompatibilitywithLAN/MANManagementspecifications(ISO/IECDIS15802-2,ISO/IEC8802-3Amendment11,andISO7498:1984)andwithISO/IEC9595:1991and9596-1:1991.Tothisend,thisstandardspecifiesthefollowing:—AsetofdefinitionsofcommonlyusefulmanagedobjectandattributetypesthatbuilduponthegenericdefinitionscontainedinDMI.—TheuseoftheStructureofManagementInformation(SMI)standards(ISO/IEC10165-1:1992,10165-2:1992,and10165-4:1992)asthebasisforthedefinitionofmanagementinformationandmanagedobjectsinaLAN/MANenvironment.—ProcedurestobeusedindefiningandregisteringmanagementinformationwithinIEEE802LAN/MANstandards.AninformativeannexisalsoincludedwithguidelinestowardrecommendedcommonapproachestobeusedforthedocumentationofLAN/MANManagementspecifications.Thisstandarddoesnotconstrainthedevelopmentoflayer-specificmanagementspecifications.ThisstandardisapplicabletothedevelopmentofIEEE802managementspecificationsthatdefinethefollowing:—Managementinformationthatistobetransferredormanipulatedbymeansofmanagementprotocol,inparticular,thatwhichisspecifiedinISO/IEC15802-2andISO/IEC9596-1:1991.—Themanagedobjectstowhichthatinformationrelates.
【中国标准分类号】:M11
【国际标准分类号】:35_110
【页数】:47P.;A4
【正文语种】:英语


【英文标准名称】:Designoffansworkinginpotentiallyexplosiveatmospheres
【原文标准名称】:工作在潜在爆炸环境中电扇的设计
【标准号】:BSEN14986-2007
【标准状态】:现行
【国别】:英国
【发布日期】:2007-03-30
【实施或试行日期】:2007-03-30
【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】:事故预防;定义;设计;评估;爆炸危险;防爆;爆炸区;爆炸物;火灾;防火安全;可燃性环境;气体;危害;机器;作标记;职业安全;预防作用;保护(装置);保护措施;危险;危险区域;安全;安全工程;安全要求;规范(验收);测试;使用;用户信息;通风机;工作场所安全
【英文主题词】:Accidentprevention;Definitions;Design;Evaluations;Explosionhazard;Explosionprotection;Explosionzone;Explosions;Fire;Firesafety;Flammableatmospheres;Gases;Hazards;Machines;Marking;Occupationalsafety;Preventiveactions;Protection;Protectivemeasures;Risk;Riskarea;Safety;Safetyengineering;Safetyrequirements;Specification(approval);Testing;Use;Userinformation;Ventilators;Workplacesafety
【摘要】:ThisEuropeanStandardspecifiestheconstructionalrequirementsforfansconstructedtoGroupIIG(ofexplosiongroupsIIA,IIBandhydrogen)categories1,2and3,andGroupIIDcategories2and3,intendedforuseinexplosiveatmospheres.NOTEOperationconditionsforthedifferentcategoriesoffansusedinthisEuropeanStandardaredefinedinClause4.1.2ThisEuropeanStandarddoesnotapplytogroupIfans(fansformining),coolingfansorimpellersonrotatingelectricalmachines,coolingfansorimpellersoninternalcombustionengines.NOTE1RequirementsforgroupIfansaregiveninEN1710.NOTE2Therequirementsforelectricalpartsarecoveredbyreferencestoelectricalequipmentstandards.1.3ThisEuropeanStandardspecifiesrequirementsfordesign,construction,testingandmarkingofcompletefanunitsintendedforuseinpotentiallyexplosiveatmospheresinaircontaininggas,vapour,mistand/ordusts.Suchatmospheresmayexistinside(theconveyedfluid),outside,orinsideandoutsideofthefan.1.4ThisEuropeanStandardisapplicabletofansworkingintherangeofambientatmosphereshavingabsolutepressuresrangingfrom0,8barto1,1bar,temperaturesrangingfrom?20°Cto+60°C,maximumvolumefractionof21%oxygencontentandanaerodynamicenergyincreaseoflessthan25kJ/kg.NOTE1ThisEuropeanStandardmayalsobehelpfulforthedesign,construction,testingandmarkingoffansintendedforuseinatmospheresoutsidethevalidityrangestatedaboveorincaseswhereothermaterialpairingsneedtobeused.Inthiscase,theignitionriskassessment,ignitionprotectionprovided,additionaltesting(ifnecessary),manufacturer'smarking,technicaldocumentationandinstructionstotheuser,shouldclearlydemonstrateandindicatetheequipment'ssuitabilityfortheconditionsthefanmayencounter.NOTE2ThisEuropeanStandarddoesnotapplytointegralfansofelectricmotors.NOTE3Whereundatedreferencesareusedinthebodyofthestandardthelatesteditionapplies.
【中国标准分类号】:K35
【国际标准分类号】:23_120;29_260_20
【页数】:40P.;A4
【正文语种】:英语