基本信息
标准名称: | 容器、换热器专业工程设计质量保证程序 |
中标分类: |
工程建设 >>
原材料工业及通信、广播工程 >>
石化、化工工程 |
ICS分类: |
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发布日期: | 2000-11-22 |
实施日期: | 2001-06-01 |
首发日期: | 1900-01-01 |
作废日期: | 1900-01-01 |
出版日期: | 1900-01-01 |
页数: | 20页 |
适用范围
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前言
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目录
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引用标准
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所属分类: 工程建设 原材料工业及通信 广播工程 石化 化工工程
【英文标准名称】:Cablenetworksfortelevisionsignals,soundsignalsandinteractiveservices-Part4:Passivewidebandequipmentforcoaxialcablenetworks(TA5)
【原文标准名称】:电视信号、声音信号和交互式服务用电缆网络.第4部分:同轴电缆网络用无源宽带设备(TA5)
【标准号】:IEC60728-4-2007
【标准状态】:现行
【国别】:国际
【发布日期】:2007-08
【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/TC100
【标准类型】:()
【标准水平】:()
【中文主题词】:音频信号;分支导管;宽带系统;电缆分布系统;电缆电视;电缆网络;公共天线电视;同轴电缆;通讯链;连接电缆;接线箱;连接件;数据记录;退耦;定义;分配器;电气工程;频率范围;等级(质量);交互式;测量技术;计量学;通用件;接收机;回程损耗;信号;声音广播;规范(验收);用户台;电视广播;电视接收;终端装置;电视信号;宽带传输
【英文主题词】:Audiosignals;Branchconduits;Broadband;Broadbandnetwork;Broadbandsystems;Cabledistributionsystems;Cabletelevision;Cableddistributionsystems;Cablednetworks;CATV;Central-antennatelevision;Coaxialcables;Communicationchains;Connectingcables;Connectionboxes;Connections;Damping;Datarecording;Decoupling;Definitions;Distortion;Distributors;Electricalengineering;Frequencyranges;Grades(quality);Interactive;Intermodulation;Measurement;Measuringtechniques;Metrology;Modularunits;Modulation;Performancerequirements;Ratings;Receivers;Returnloss;Signals;Soundbroadcasting;Specification(approval);Subscriber'sstation;Televisionbroadcasting;Televisionreception;Terminaldevices;Visionsignals;Widebandtransmission
【摘要】:ThispartofIEC60728appliestosystemoutlets,splittersandtaps,passivesingleormultipleportequipmentcomprisingfilters,attenuators,equalizers,galvanicisolators,powerinjectors,cablesplices,terminatingresistorsandtransferpoints,butexcludingcoaxialcablesandreceiverleads(see5.2).Thisstandard?coversthefrequencyrange5MHzto3000MHz;?identifiesperformancerequirementsforcertainparameters;?laysdowndatapublicationrequirementsforcertainparameters;?stipulatesmethodsofmeasurements;?introducesminimumrequirementsdefiningqualitygrades.Therearethreegradesforallpassiveequipmentexceptsystemoutletswherethereisonlyone.Differentnetworksrequirethesameperformanceand,whenintegratingnetworks,upgradingwillbeavoided.Practicalexperiencehasshownthatthesethreegradesmeetmostofthetechnicalrequirementsnecessaryforsupplyingaminimumsignalqualitytothesubscribers.Thisclassificationshouldnotbeconsideredasarequirementbutasinformationforusersandmanufacturersontheminimumqualitycriteriaofthematerialrequiredtoinstallnetworksofdifferentsizes.Thesystemoperatorshouldselectappropriatematerialtomeettheminimumsignalqualityatthesubscriber'soutletandtooptimizecost/performance,takingintoaccountthesizeofthenetworkandlocalcircumstances.Allrequirementsandpublisheddatashouldbeunderstoodasguaranteedvalueswithinthespecifiedfrequencyrangeandinwell-matchedconditions.
【中国标准分类号】:M60
【国际标准分类号】:33_060_40;33_170
【页数】:32P;A4
【正文语种】:英语