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IEC 61643-21 : 1.2现行

LOW VOLTAGE SURGE PROTECTIVE DEVICES - PART 21: SURGE PROTECTIVE DEVICES CONNECTED TO TELECOMMUNICATIONS AND SIGNALLING NETWORKS - PERFORMANCE REQUIREMENTS AND TESTING METHODS

出版:International Electrotechnical Committee

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基本信息
标准编号: IEC 61643-21 : 1.2
发布时间:2012/7/27 0:00:00
标准类别:Standard
出版单位:International Electrotechnical Committee
标准页数:140
标准简介

Applies to devices for surge protection of telecommunications and signalling networks against indirect and direct effects of lightning or other transient overvoltages.