GB/T 18802.21-2016
ActiveLow-voltage surge protective devices—Part 21: Surge protective devices connected to telecommunications and signaling networks—Performance requirements and testing methods
低压电涌保护器 第21部分：电信和信号网络的电涌保护器（SPD） 性能要求和试验方法
Application Summary AI generated
This standard specifies performance requirements and testing methods for surge protective devices (SPDs) used in telecommunications and signaling networks operating at low voltages. It applies to SPDs installed at the interface of telecom lines, data lines, and signaling circuits to protect equipment from transient overvoltages caused by lightning or switching operations. The standard is used by manufacturers and testing laboratories to verify the safety and reliability of SPDs in applications such as telephone exchanges, base stations, and industrial control systems.
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