低压供电系统电涌的成因及防护

The Causes and Prevention of the Surge in Low-voltage Power-supply System

介绍了电涌的基本概念,阐述了导致供电系统电涌的原因及对用电设备的影响,提出了相应的低压供电系统的电涌保护措施以及电涌保护器(SPD)的安装注意事项。

This paper introduces basic conception of the surge,expounds the causes of the surge in the power-supply system and its influence on the electric equipment, and puts forward some protective measures for the surge in low-voltage power-supply system and some matters needing atttention in the erection of the suger protection device（SPD）.