正确设置TN系统中性线上的开关

Correctly Setting the Switch on Neutral Line of TN System

我国低压配电系统绝大部分都是采用中性点直接接地 (TN)系统。根据近年来国内、国际颁布的相关标准,结合电气检修安全要求,综合分析了低压配电系统设计中不同形式的TN系统中性线上设置开关的意义,并介绍了中性线上的开关种类、用途及设置原则。

Most of China’s Low Voltage distribution systems use TN system.In accordance with relative Chinese and international standards issued in recent years,and considering the safety requirements for electric maintenance,the significance of setting the switch on neutral lines on different types of TN systems in the Low Voltage distribution systems are comprehensively analyzed.The type,service and setting principles of switches on the neutral line are also introduced.