电涌保护器选型设计探讨

Discussion about Type Selection Design of Surge Protection Device

电涌保护器SPD在各类工程建设中的应用越来越普遍,可供选择的产品也越来越多。如何针对工程自身的特点来选择合适的SPD,是一个亟待解决的现实问题。本文根据电源SPD及信号SPD的不同类型、关键性能参数以及使用功能要求,初步提出了SPD的选型方法。

Surge protection devices （SPD） are more and more widely applied in different kinds of engineering construction and the optional products become more and more rich. How to select proper SPD aimed at the engineering itself is an urgent and practical question. In this paper, the type selection methods are preliminarily put forward according to the different types between the power supply SPD and signal SPD, key performances and parameters, requirements for operating functions.