雷电波对通信设备危害的实验研究

通过实验分析了典型通信设备电气连线和接口耐受雷电冲击电压、工频交流电压、直流电压和冲击电流能力,研究了雷电冲击波沿不同距离网络线和电话线传播时末端电压波形及电压升高的原因,得到了系列实验数据,提出了对电话线和网络线保护器安装位置、限制电压和通流能力的要求。

Voltage and current withstanding capacity including lightning voltage, AC voltage, DC voltage and impulse current of electrical wires and interface of communication equipment are tested and analyed by means of experiment. Voltage at the end of net wire or telephone wire is recorded when lightning voltage spread along the wires with different length. Suggestion about the installation place, limiting voltage and current of net protector and telephone protector is given according to the experiment results.