CEI EN 61643-21:2003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：Comitato Elettrotecnico Italiano
专家解读视频
基本信息
标准编号： CEI EN 61643-21:2003
发布时间：2014/2/1 0:00:00
标准类别：Standard
出版单位：Comitato Elettrotecnico Italiano
标准页数：68
标准简介
2003 AMD 2 2014 [01/02/2014]2003 AMD 1 2011 [01/01/2011]2003 AMD 1 2010 [01/08/2010]1ED 2003 [01/01/2003]
标准备注
Classificazione CEI 37-6. (01/2003) AMD 1 Issued on 01/08/2010 is only available in English. (09/2010)
本标准替代的旧标准
