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【英文标准名称】:High-voltageswitchgearandcontrolgear-Part204:Rigidgas-insulatedtransmissionlinesforratedvoltageabove52kV
【原文标准名称】:高压开关设备和控制设备.第204部分:额定电压高于52kV的刚性气体绝缘输电线路
【标准号】:IEC62271-204-2011
【标准状态】:现行
【国别】:国际
【发布日期】:2011-07
【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/SC17C
【标准类型】:()
【标准水平】:()
【中文主题词】:防腐蚀;定义(术语);尺寸选定;电缆线;电控制设备;电气工程;气体绝缘;隔气的;高电压;高压设备;高压线路;高压开关装置;高压开关设备;绝缘线;绝缘件;户外设施;室外电站;额定电压;工作电压;安全性;开关设备;试验;传输线路
【英文主题词】:Corrosionprotection;Definitions;Dimensioning;Electriccables;Electriccontrolequipment;Electricalengineering;Gasinsulation;Gas-insulated;Highvoltage;High-tensionunits;High-voltagelines;High-voltageswitchgear;High-voltageswitchgears;Insulatedcords;Insulations;Open-airinstallation;Outdoorstations;Ratedvoltage;Ratedvoltages;Safety;Switchgears;Testing;Transmissionlines
【摘要】:
【中国标准分类号】:K43
【国际标准分类号】:29_130_10
【页数】:109P;A4
【正文语种】:英语


【英文标准名称】:Soundsystemequipment-Methodsforspecifyingandmeasuringgeneralcharacteristicsusedforequipmentperformance
【原文标准名称】:音响系统设备.第1部分:设备性能用一般特性的规定和测量方法
【标准号】:BS6840-1-1987
【标准状态】:现行
【国别】:英国
【发布日期】:1987-04-30
【实施或试行日期】:1987-04-30
【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】:通信设备;频率;声学测量;音频设备;声学试验;信号电平;权函数;试验条件;性能试验;误差;校准;作标记;声测量;声试验;作标记;磁场测量;准确度;图解表示法;实验数据;音频系统;试验设备
【英文主题词】:Acousticequipment;Acoustics;Acoustoelectricdevices;Amplifiers;Audioequipment;Datarepresentation;Definition;Definitions;Electricalengineering;Electroacoustics;Frequencies;Frequencymeasurement;Generalsection;Headphones;High-fidelity;Instruments;Loudspeakers;Marking;Measurement;Microphones;Noise(spurioussignals);Noisevoltage;Performance;Precision;Radiodisturbances;Radioequipment;Radioreceivers;Radiofrequencies;Ratings;Soundbroadcasting;Soundtransmission;Specification(approval);Transmissiondevices;Voltagemeasurement
【摘要】:Thisstandardappliestosoundsystemsofanykind,andtothepartsofwhichtheyarecomposedorwhichareusedasauxiliariestosuchsystems.Thisstandarddealswiththedeterminationoftheperformanceofsoundsystemequip-ment,thecomparisonofthesetypesofequipmentandthedeterminationoftheirproperpracticalapplication,bylistingthecharacteristicswhichareusefulfortheirspecificationandlayingdownuniformmethodsofmeasurementsforthesecharacteristics.Thestandardisconfinedtoadescriptionofthedifferentcharacteristicsandtherelevantmethodsofmeasurement;itdoesnotingeneralspecifyperformance(exceptinPart10).Thecompletestandardconsistsofthefollowingparts,inwhichthecharacteristicsofvariouspartsofsoundsystemsandtheirmethodsofmeasurementarespecified;somepartsincludepreferredvalues:—Part1:General.(Uniformcharacteristicsandmethodsofmeasurement)—Part2:ExplanationofGeneralTerms.(Explanationofgeneraltermsandcalculationmethods)—Part3:SoundSystemAmplifiers.(Amplifiersformingpartofasoundsystemforprofessionalanddomesticapplications)—Part4:Microphones.(Microphonesinprofessionalanddomesticapplications)—Part5:Loudspeakers.(Loudspeakersinprofessionalanddomesticapplications,treatedasentirelypassiveelements)—Part6:AuxiliaryPassiveElements.(Attenuators,transformers,filtersandequalizers,appliedasseparateunitstobecombinedwithotherseparatesoundsystemunits)—Part7:HeadphonesandHeadsets.(Headphonesandheadsetsintendedtobeusedonthehumanear)—Part8:AutomaticGainControlDevices.(Limitersandcompressors)—Part9:ArtificialReverberation,TimeDelayandFrequencyShiftEquipment.(Devicescommonlyemployedtoachievespecialeffectsinsoundsystems)—Part10:ProgrammeLevelMeters(Peakprogrammemetersandvu-indicators)—Part11:ConnectorsfortheInterconnectionofSoundSystemComponents.(Applicationofconnectorsfortheinterconnectionbetweenpartsofasoundsystem)—Part12:CircularConnectorsforBroadcastandSimilarUse.(Applicationofconnectorsfortheinterconnectionbetweenpartsofabroad-castorsimilarprofessionalsystem)—Part13:ListeningTestonLoudspeakers.(Listeningtestsandobjectivemethodsforratingthequalityofthetransmis-sionsystems)—Part14:CircularandEllipticalLoudspeakers;OuterFrameDiametersandMountingDimensions.(Dimensionalcharacteristicsofsinglemoving-coil(dynamic)loudspeakers)—Part15:PreferredMatchingValuesfortheInterconnectionofSoundSystemCom-ponents.(Preferredelectricalvaluesforthecorrectinterconnectionofsoundsystemcomponents)
【中国标准分类号】:M72
【国际标准分类号】:33_160_30
【页数】:26P;A4
【正文语种】:英语