对防止雷害造成电网事故的思考

随着电网的不断发展,由于雷电造成的电网事故日益增多,对某电业局2004年事故障碍原因统计分析表明,因雷击造成的事故占总比例的55%,因此采取有效措施遏止因雷害造成电网事故显得尤为重要。通过对发生的电网事故的分析,介绍了一些防止雷害的措施:加装线路避雷器,降低杆塔接地电阻,热备用断路器防雷等方面的内容。

Thinking about Power Grid Accident Due to Lightning Hazard and Its Preventions

With the development of power grid,grid accidents are increasing due to lightning strike.The reasons of these accidents happened in an electric power bureau are analyzed,and the analysis data indicate the accidents caused by lightning strike is 55% of the total.So it is very important to take steps to hold back thunderstorm damage.Some measures to prevent thunderstorm damage are introduced such as adding line lightning arrester,reducing ground resistance of poles and towers,lightning protection for standby circuit breaker and so on.