BS 7870-4.11-1999 配电和发电设施用低压(LV)和中等电压(MV)聚合物绝缘电缆.额定电压为11kV和33kV的挤制绝缘配电电缆的规范.单芯33kV铅护套电缆

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【英文标准名称】:LVandMVpolymericinsulatedcablesforusebydistributionandgenerationutilities-Specificationfordistributioncableswithextrudedinsulationforratedvoltagesof11kVand33kV-Single-core33kVleadsheathedcables-Singlecore33kVleads
【原文标准名称】:配电和发电设施用低压(LV)和中等电压(MV)聚合物绝缘电缆.额定电压为11kV和33kV的挤制绝缘配电电缆的规范.单芯33kV铅护套电缆
【标准号】:BS7870-4.11-1999
【标准状态】:现行
【国别】:英国
【发布日期】:1999-08-15
【实施或试行日期】:1999-08-15
【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】:电力电缆;电阻测量;电气试验;绞线;铅合金;护套电缆;电压;交联材料;窄条带材;铜;吸水率;水分测定;铝;局部放电;铅;电绝缘;收缩性试验;电压测量;弯曲试验;导电体;直流电流;单芯电缆;配电线;电屏蔽;兼容性;圆形;作标记;退火;尺寸;中等电压;设计;高聚物;塑料和橡胶技术;厚度测量;绝缘电缆;电绝缘装置;外观检查(试验);名称与符号;直径;额定电压;定型试验;老化试验;低电压;热试验;电缆;聚乙烯;挤压;电缆护套
【英文主题词】:Ageingtests;Aluminium;Annealing;Bendtesting;Cablesheaths;Circularshape;Compatibility;Copper;Cross-linkedmaterials;Design;Designations;Diameter;Dimensions;Directcurrent;Electriccables;Electricconductors;Electricpowerdistributionlines;Electricscreens;Electricalinsulation;Electricalinsulationdevices;Electricaltesting;Extruding;Insulatedcables;Lead;Leadalloys;Lowvoltage;Marking;Mediumvoltage;Partialdischarges;Plasticsandrubbertechnology;Polyethylene;Polymers;Powercables;Ratedvoltage;Resistancemeasurement;Sheathedcables;Shrinkagetests;Single-corecables;Strandedconductors;Tape;Thermaltesting;Thicknessmeasurement;Typetesting;Visualinspection(testing);Voltage;Voltagemeasurement;Waterabsorption;Watercontentdetermination
【摘要】:Specifiesconstructionanddimensionsof33kVsinglecorecableshavingeitheraluminiumorcopperconductors,XLPEextrudedinsulation,leadalloysheathandanMDPEoversheath.Thesecablesaresuitableforlayingdirectinground,inductsorinair.TobereadinconjunctionwithBS7870-1,BS7870-2
【中国标准分类号】:K13
【国际标准分类号】:29_060_20
【页数】:16P;A4
【正文语种】:英语


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【英文标准名称】:Informationtechnology-Opensystemsinterconnection-Networklayersecurityprotocol
【原文标准名称】:信息技术.开放式系统互连.网络层安全协议
【标准号】:BSISO/IEC11577-1995
【标准状态】:现行
【国别】:英国
【发布日期】:1995-10-15
【实施或试行日期】:1995-10-15
【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】:数据处理;通信规程;数据传输;开放系统互连;网络层;信息交流;数据传送;验证;电信;数据安全;合格
【英文主题词】:Checks;Communication;Communicationmedia;Communicationprocedures;Communicationsystems;Connectionless;Controlprocedures;Dataexchange;Dataprocessing;Datatransfer;Datatransmission;Datatransmissionmethods;Definitions;Exchange;Exchangeservices;Exchangetechnique;Informationexchange;Informationinterchange;Informationprocessing;Informationtechnology;Networkinterconnection;Networklayers;Networkservices;Opensystems;Opensystemsinterconnection;OSI;Protocols;Safety;Safetyengineering;Telecommunications;Terminology;Transmission
【摘要】:ThisITU-TRecommendation|InternationalStandardspecifiesaprotocoltobeusedbyEndSystemsandIntermediateSystemsinordertoprovidesecurityservicesintheNetworklayer,whichisdefinedbyCCITTRec.X.213|ISO/IEC8348,andISO8648.TheprotocoldefinedinthisITU-TRecommendation|InternationalStandardiscalledtheNetworkLayerSecurityProtocol(NLSP).ThisITU-TRecommendation|InternationalStandardspecifies:1)SupportforthefollowingsecurityservicesdefinedinCCITTRec.X.800|ISO7498-2:a)peerentityauthentication;b)dataoriginauthentication;c)accesscontrol;d)connectionconfidentiality;e)connectionlessconfidentiality;f)trafficflowconfidentiality;g)connectionintegritywithoutrecovery(includingDataUnitIntegrity,inwhichindividualSDUsonaconnectionareintegrityprotected);h)connectionlessintegrity.2)ThefunctionalrequirementsforimplementationsthatclaimconformancetothisITU-TRecommen-dation|InternationalStandard.Theproceduresofthisprotocolaredefinedintermsof:a)requirementsonthecryptographictechniquesthatcanbeusedinaninstanceofthisprotocol;b)requirementsontheinformationcarriedinthesecurityassociationusedinaninstanceofcommunication.Althoughthedegreeofprotectionaffordedbysomesecuritymechanismsdependsontheuseofsomespecificcryptographictechniques,correctoperationofthisprotocolisnotdependentonthechoiceofanyparticularenciphermentordeciphermentalgorithm.Thisisalocalmatterforthecommunicatingsystems.Furthermore,neitherthechoicenortheimplementationofaspecificsecuritypolicyarewithinthescopeofthisITU-TRecommendation|InternationalStandard.Thechoiceofaspecificsecuritypolicy,andhencethedegreeofprotectionthatwillbeachieved,isleftasalocalmatteramongthesystemsthatareusingasingleinstanceofsecurecommunications.ThisITU-TRecommendation|InternationalStandarddoesnotrequirethatmultipleinstancesofsecurecommunicationsinvolvingasingleopensystemmustusethesamesecurityprotocol.AnnexDprovidesthePICSproformafortheNetworkLayerSecurityProtocolincompliancewiththerelevantguidancegiveninISO/IEC9646-2.
【中国标准分类号】:L79
【国际标准分类号】:35_100_30
【页数】:120P.;A4
【正文语种】:英语


Product Code:SAE AS443
Title:Compass, Magnetic, Non-Stabilized Type (For Turbine-Powered, Subsonic Aircraft)
Issuing Committee:A-4 Aircraft Instruments Committee
Scope:This SAE Aerospace Standard (AS) covers a direct reading magnetic compass.