【英文标准名称】:Informationtechnology.Genericcablingsystems.Datacentres
【原文标准名称】:信息技术.综合布线系统.数据中心
【标准号】:BSEN50173-5-2007+A1-2010
【标准状态】:现行
【国别】:英国
【发布日期】:2007-08-31
【实施或试行日期】:2007-08-31
【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】:编织外壳;建筑物;布线;电路网络;通信电缆;通讯系统(建筑物);连接工程;连接工艺;铜电缆;数据处理;数据传输;定义(术语);效率;电气装置;电磁兼容性;电磁兼容性(EMC);信息交换;信息技术;装置;场所;办公室设备;光波导;性能;计划;功率容量;特性;防护屏蔽;规范(验收);结构;对称的;系统管理;电信;试验;拓扑学;传输
【英文主题词】:Braidshieldings;Buildings;Cabling;Circuitnetworks;Communicationcables;Communicationsystems(buildings);Connectionengineering;Connectiontechnology;Coppercable;Dataprocessing;Datatransmission;Definitions;Efficiency;Electricalinstallations;Electromagneticcompatibility;EMC;Informationinterchange;Informationtechnology;Installations;Locations;Officeequipment;Opticalwaveguides;Performance;Planning;Power-handlingcapacity;Properties;Shields;Specification(approval);Structure;Symmetrical;Systemmanagement;Telecommunications;Testing;Topology;Transmission
【摘要】:ThisEuropeanStandardspecifiesgenericcablingthatsupportsawiderangeofcommunicationsservicesforusewithinadatacentre.Itcoversbalancedcablingandopticalfibrecabling.ThisEuropeanStandardisbaseduponandreferencestherequirementsofEN50173-1.ThisEuropeanStandardcontainsadditionalrequirementsthatareappropriatetodatacentresinwhichthedistanceoverwhichcommunicationsserviceshavetobedistributedisthemaximumdefinedforbackbonecablingimplementationswithinEN50173-1.TheprinciplesofthisEuropeanStandardmayalsobeappliedtoinstallationsthatdonotfallwithinthisrange.InadditiontotherequirementsofEN50173-1,thisEuropeanStandardspecifies:a)amodifiedstructureandconfigurationforgenericcablingwithindatacentresusedtosupportexistingandemergingapplications;b)implementationoptionstoreflectthequantityofconnectionsrequiredindatacentreinfrastructures;c)requirementsthatreflecttherangeofoperatingenvironmentswithindatacentres.Safety(electricalsafetyandprotection,fire,opticalpoweretc.)andelectromagneticcompatibility(EMC)requirementsareoutsidethescopeofthisEuropeanStandardandarecoveredbyotherstandardsandregulations.However,informationgiveninthisEuropeanStandardmaybeofassistanceinmeetingthesestandardsandregulations.
【中国标准分类号】:M11
【国际标准分类号】:33_040_50
【页数】:36P.;A4
【正文语种】:英语


【英文标准名称】:Soilimproversandgrowingmedia-Samplepreparationforchemicalandphysicaltests,determinationofdrymattercontent,moisturecontentandlaboratorycompactedbulkdensity;GermanversionEN13040:1999
【原文标准名称】:生长基质和土壤改良剂.物理试验和化学试验的样品制备.实验室压缩体密度和水分含量,干物质含量的测定
【标准号】:DINEN13040-2000
【标准状态】:作废
【国别】:德国
【发布日期】:2000-02
【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】:农业;肥料;土壤改良物质;土壤改良;含量测定;体密度;测定;固态物质;含水量;规范(验收);试样制备;定义;定义;生长基质;松散材料密度
【英文主题词】:Agriculture;Bulkdensity;Definition;Definitions;Determination;Determinationofcontent;Fertilizers;Growingmedia;Moisturecontents;Soilimprovement;Soilimprovingmaterials;Solidmatter;Specification(approval);Specimenpreparation
【摘要】:Thedocumentspecifiesadescriptionofthesamplepreparationforchemicalandphysicaltestsofsoilimproversandgrowingmediaandthedeterminationofdrymattercontent,moisturecontentandlaboratorycompactedbulkdensity.#,,#
【中国标准分类号】:B11
【国际标准分类号】:65_080
【页数】:10P;A4
【正文语种】:德语