【英文标准名称】:Cablenetworksfortelevisionsignals,soundsignalsandinteractiveservicesPart7:Systemperformance
【原文标准名称】:电视信号、声音信号和交互设备用电缆网络.第7部分:系统性能
【标准号】:BSEN50083-7-1996+A1-2000
【标准状态】:现行
【国别】:英国
【发布日期】:1997-04-15
【实施或试行日期】:
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:StandardsofEN50083seriesdealwithcablenetworksfortelevisionsignals,soundsignalsandinteractiveservicesincludingequipment,systemsandinstallations:?forheadendreception,processinganddistributionoftelevisionandsoundsignalsandtheirassociateddatasignals;and?forprocessing,interfacingandtransmittingallkindsofsignalsforinteractiveservicesusingallapplicabletransmissionmedia.Allkindsofnetworkslike:?CATV-networks;?MATV-networksandSMATV-networks;?Individualreceivingnetworks;andallkindsofequipment,systemsandinstallationsinstalledinsuchnetworks,arewithinthisscope.Theextentofthisstandardizationworkisfromtheantennas,specialsignalsourceinputstotheheadendorotherinterfacepointstothenetworkuptothesystemoutletortheterminalinput,wherenosystemoutletexists.Thestandardizationofanyuserterminals(i.e.tuners,receivers,decoders,multimediaterminalsetc.)aswellasofanycoaxialandopticalcablesandaccessoriesthereforeisexcluded.1.2SpecificscopeofthisPart7Thisstandardisapplicabletoanycablenetworkhavingacoaxialcableoutputandprimarilyintendedfortelevisionandsoundsignalsoperatingbetweenabout30MHzand2150MHz.Thisstandardlaysdownthebasicmethodsofmeasurementoftheoperationalcharacteristicsofcablenetworkshavingcoaxialcableoutputsinordertoassesstheperformanceofthosenetworksandtheirperformancelimits.Allrequirementsrefertotheperformancelimitswhichshallbeobtainedbetweentheinput(s)totheheadendorheadendsandanysystemoutletwhenterminatedinaresistanceequaltothenominalloadimpedanceofthesystem,unlessotherwisespecified.Wheresystemoutletsarenotused,theaboveappliesatthesubscriber’sendofthesubscriber’sfeeder.NOTE1Methodsofmeasurementdescribedinthisstandardareconsideredasbasic.However,anyequivalentmethodthatensuresatleastthesameaccuracymaybeused.NOTE2Ifthesystemoperatorwishestosubdividethesystemintoanumberofparts,theaccumulationofdegradationsshouldnotexceedthefiguresgivenbelow.NOTE3Anextensionofthefrequencyrangetothatfrom5MHzto3000MHzwillbeconsideredforfuturework.NOTE4SystemperformancerequirementsofreturnpathsaswellasspecialmethodsofmeasurementfortheuseofthereturnpathsincablenetworksaredescribedinEN50083-10.
【中国标准分类号】:M10
【国际标准分类号】:33_060_40
【页数】:64P.;A4
【正文语种】:英语


【英文标准名称】:Mechanicalvibration-Testingofmobilemachineryinordertodeterminethewhole-bodyvibrationemissionvalue-General;GermanversionEN1032:1996
【原文标准名称】:机器振动.测定可移动机器整体振动的试验方法.概述
【标准号】:DINEN1032-1996
【标准状态】:作废
【国别】:德国
【发布日期】:1996-11
【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】:人类工效学;职业安全;试验条件;振动;规范(验收);一般条件;定义;可运输结构;试验;机器;振动测量
【英文主题词】:vibrationmeasurement;specification(approval);definitions;machines;occupationalsafety;generalconditions;testingconditions;testing;vibration;ergonomics;transportablestructures
【摘要】:
【中国标准分类号】:J04
【国际标准分类号】:17_160;13_160
【页数】:10P;A4
【正文语种】:德语