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Standard
| GB/T 18802.21-2004 Low-voltage surge protective devices - Part 21:Surge protective devices connected to telecommunications and signalling networks - Performance requirements and testing methods (English Version) |
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Detail of GB/T 18802.21-2004
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Introduction of GB/T 18802.21-2004
本部分适用于对受到雷电或其他瞬态过电压直接或间接影响的电信和信号网络进行防护的浪涌保护器(以下称为SPD——Surgeprotectivedevice)。这些SPD的作用是对连接到系统标称电压最高为交流1000V(均方根值)、直流1500V的电信网络和信号网络的现代电子设备进行保护。
Contents of GB/T 18802.21-2004