摘要
我国经济建设的快速发展和用电设备大量增加给电气线路的安全运行带来隐患。谐波电流在三相供电系统中的中性线上会引起电流的叠加效应。从而造成中性线上电流增大,发热量增多,进而引发建筑电气火灾事故的发生。
The rapid development of China＇s economic construction and the large increase of electrical equipment bring the risk to the safe operation of electrical circuits.Harmonic currents may cause the current superposition effect in neutral line of three-phase power supply system,which results in current increases in the neutral line,the heat increasing,triggering building electrical fire accident.
出处
《价值工程》
2011年第14期31-32,共2页
Value Engineering
关键词
谐波电流
中性线过载
火灾
预防措施
harmonic electric current
neutral over loading
fire
the measure of preventin
