DIN EN 301251-2003 数字蜂窝式电信系统(相位2).基站系统的故障管理
时间:2024-05-11 12:47:54 来源: 标准资料网 作者：标准资料网 阅读：9164
【英文标准名称】:Digitalcellulartelecommunicationssystem(Phase2)-FaultmanagementoftheBaseStationSystem(BSS)(GSM12.11version4.1.2)(EndorsementoftheEnglishversionEN301251V4.1.2(1997-12)asGermanstandard)
【原文标准名称】:数字蜂窝式电信系统(相位2).基站系统的故障管理
【标准号】:DINEN301251-2003
【标准状态】:作废
【国别】:德国
【发布日期】:2003-11
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:电气工程;通信网;数字的;电信设备;基站;数字记录法;数据处理;信息处理;远程通信;通信系统;信息;网络互连;电路网络;无线电话业务;无线通信业务;电信;无线电广播网;移动无线电通信系统;调试;数据管理;传播技术;管理;网
【英文主题词】:
【摘要】:
【中国标准分类号】:M37
【国际标准分类号】:33_070_50
【页数】:1P;A4
【正文语种】:德语
【英文标准名称】:StandardTestMethodforAirContentofFreshlyMixedConcretebytheVolumetricMethod
【原文标准名称】:体积法测定新拌混凝土的含气量的标准试验方法
【标准号】:ASTMC173/C173M-2010b
【标准状态】:现行
【国别】:
【发布日期】:2010
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:C09.60
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:空气含量;校正;混凝土;校正因子;新拌混凝土;测量碗;米;体积法;体积测量
【英文主题词】:aircontent;calibration;concrete;correctionfactor;freshlymixedconcrete;measuringbowl;meter;volumetricmethod;Volumetricmeasurement
【摘要】:Thistestmethodcoversthedeterminationoftheaircontentoffreshlymixedconcrete.Itmeasurestheaircontainedinthemortarfractionoftheconcrete,butisnotaffectedbyairthatmaybepresentinsideporousaggregateparticles.Therefore,thisistheappropriatetesttodeterminetheaircontentofconcretescontaininglightweightaggregates,air-cooledslag,andhighlyporousorvesicularnaturalaggregates.Thistestmethodrequirestheadditionofsufficientisopropylalcohol,whenthemeterisinitiallybeingfilledwithwater,sothatafterthefirstorsubsequentrollingslittleornofoamcollectsintheneckofthetopsectionofthemeter.Ifmorefoamispresentthanthatequivalentto2%airabovethewaterlevel,thetestisdeclaredinvalidandmustberepeatedusingalargerquantityofalcohol.Additionofalcoholtodispelfoamanytimeaftertheinitialfillingofthemetertothezeromarkisnotpermitted.Theaircontentofhardenedconcretemaybeeitherhigherorlowerthanthatdeterminedbythistestmethod.Thisdependsuponthemethodsandamountsofconsolidationeffortappliedtotheconcretefromwhichthehardenedconcretespecimenistaken;uniformityandstabilityoftheairbubblesinthefreshandhardenedconcrete;accuracyofthemicroscopicexamination,ifused;timeofcomparison;environmentalexposure;stageinthedelivery,placementandconsolidationprocessesatwhichtheaircontentoftheunhardenedconcreteisdetermined,thatis,beforeoraftertheconcretegoesthroughapump;andotherfactors.1.1Thistestmethodcoversdeterminationoftheaircontentoffreshlymixedconcretecontaininganytypeofaggregate,whetheritbedense,cellular,orlightweight.1.2ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.TheSIunitsareshowninbrackets.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.(WarningFreshhydrauliccementitiousmixturesarecausticandmaycausechemicalburnstoskinandtissueuponprolongedexposure.)
【中国标准分类号】:Q13
【国际标准分类号】:91_100_30
【页数】:8P.;A4
【正文语种】:
【英文标准名称】:Railwayapplications.Environmentalconditionsforequipment.Part1:Equipmentonboardrollingstock
【原文标准名称】:铁路设施.设备环境条件.平板车载设备
【标准号】:BSEN50125-1-1999
【标准状态】:现行
【国别】:英国
【发布日期】:1999-12-15
【实施或试行日期】:1999-12-15
【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】:铁路设备;电力系统干扰;谐波;加速度;工作环境;温度;等级(质量);分类系统;湿度;铁道车辆;冰;太阳辐射;大气压;电气设备;铁路设施;机电装置;高度;大气干扰;电气元件;电子设备及元件;污染;雪;交流电流;降雨
【英文主题词】:Airtemperatures;Alternatingcurrent;Definitions;Directcurrent;Electricappliances;Electrictraction;Electricalengineering;Electricalequipment;Electricalinstallations;Electrically-operateddevices;Electronically-operateddevices;Environmentalconditions;Environmentaleffects;Environmentalresistance;Equipment;Humidity;Low-voltageswitchgear;Railwayapplications;Railwayengineering;Railwayvehicles;Railways;Ratings;Rollingstocks;Specification(approval);Supplysystems;Supplyvoltages;Surgearresters;Vehicles;Weathercondition;Weatherresistance;Weatherresistant;Winds
【摘要】:ThisstandardintendstodefineenvironmentalconditionswithinEurope.NOTEcanalsobeappliedelsewherebyagreement.Thescopeofthisstandardcoverstheuseofonboardelectrical,electromechanicalandelectronicequipmentforrollingstock,forthefollowingparameters:Altitude,Temperature,Humidity,Airmovement,Rain,Snowandhail,Ice,Solarradiation,Lightning,Pollution,Vibrationsandshocks,Electromagneticinterferenceenvironment,Acousticnoiseenvironment,Supplysystemcharacteristics.Inparticularthestandarddefines:-interfaceconditionsbetweenthevehicleanditsenvironment;-generalenvironmentalrulesfortheequipmentofrollingstock,especiallyforthemainsub-systems(level3-definedbyR009-003ofavehicle(cubicles,cabling,largecomponents,etc.).InthisrespectitgivesgeneralguidanceinordertoallowthefairnessofbidassessmentsintheprocessofEuropeanProjects.Thedefinedenvironmentalconditionsareconsideredasnormalinservice;occasionallymoresevereconditionsmaybespecified.Microclimatessurroundingcomponentsmaybedefinedbyrelevantproductstandardsorbyspecialrequirements.Thisstandardisnotintendedtoapplytocranes,miningvehicles,cablecars.Passengereffectsontheequipmentandequipmenteffectonthepassengersarenotconsideredinthisstandard.
【中国标准分类号】:S33
【国际标准分类号】:29_280;45_060_10
【页数】:20P.;A4
【正文语种】:英语