SANS 61643-21 Ed. 1.01 (2009)被替代
Low Voltage Surge Protective Devices - Part 21: Surge Protective Devices Connected To Telecommunications And Signalling Networks - Performance Requirements And Testing Methods
出版：South African Bureau of Standards
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基本信息
標準編號： SANS 61643-21 Ed. 1.01 (2009)
發布時間：2009/6/26 0:00:00
標準類別：Standard
出版單位：South African Bureau of Standards
標準頁數：0
標準簡介
Applies to devices for surge protection of telecommunications and signalling networks against indirect and direct effects of lightning or other transient overvoltages.
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