雷击电磁脉冲防护器件的正确选型

Correct selection on surge protection device of lightning electromagnetic pulse

为了有效抑制雷击电磁脉冲,其防护器件(也叫电涌保护器)的正确选型至关重要,而目前市场上的电涌保护器种类繁多,功能特点各有其针对性,技术参数分布广泛,给防雷工作者的正确选型带来诸多困扰。为此,文章阐明了低压配电系统电涌保护器的选型原则及其主要技术参数的选择要求,并以菲尼克斯防雷保护模块为例,运用所述的选型原则和技术参数要求,给出了内部防雷保护为三级配置的建筑物电涌保护器的安装位置、安装级数、技术参数规格及分类试验等级等,从而给防雷工作者在低压配电系统电涌保护器的正确选型时提供一定的理论依据。

In order to effectively suppress lightning electromagnetic pulse,the selection of protection devices（also called Surge Protection Device ）are essential.The surge protective device has many varieties in the market and each has its specific features with wide distribution in technical parameters. So it brings a lot of problems to the workers of lightning protection when they select the surge protection device.This paper analyzes the selection principles of surge protector with low-voltage distribution system and its requirements for the main technical parameters.As the example of Phoenix lightning protection module,based on the selection principles and technical parameter requirements, the installation location,installation series,technical specifications and classification test levels of surge protector in the building are given out so as to provide some useful theoretical basis for the lightning protection workers in the correct selection of surge protector with low-voltage distribution system.