摘要
针对雷击可能造成的雷击电磁脉冲对计算机、通信设备等微电子设备的危害情况,对雷电的分类、通信系统和计算机网络的雷电入侵途径进行阐述和分析。介绍了雷电浪涌保护器(SPD)的类型、组成元器件及主要技术指标;重点介绍在通信和计算机网络系统中SPD的选用原则和选型计算,通过对SPD最大持续运行电压、最大放电电流的详细计算,提出参照连接器类型,按照工作电压、工作频率的要求选择正确合理SPD的方法。
An analysis is made of various sorts of equipment breakdowns and damages induced by the electromagnetic pulses of thunders and lighting, thunders and lighting classification, and the invasion approaches of thunders and lightning into communication systems and computer networks. The types, components, and technical specifications of SPDs （Surge Protector Devices） are introduced. The emphases are put on the criterions for selecting SPDs for communication systems and computer networks. According to the detailed calculation of maximum continuous operating voltage and maximal discharge electric current of SPDs, the reasonable methods for selecting SPDs are presented based on the types of connection equipments and the demands of working voltage and frequency.
出处
《气象科技》
2008年第3期360-363,共4页
Meteorological Science and Technology
关键词
浪涌保护器(SPD)
计算机网络
通信系统
技术参数
SPD （Surge Protector Device）, computer network, communication system, technical parameter
