导电涂料在减缓高压输电线路邻近民房暂态电击中的应用

Application of Conductive Coating Material in Mitigating the Transient Electric Shock of High Voltage Transmission Lines to Adjacent Houses

为减缓高压输电线路邻近民房内壁及室内金属构物暂态电击的影响,文中提出在房屋外墙表面涂覆导电涂料的方式进行处理。继而选取某邻近500 kV超高压输电线路的民房为例,采用有限元仿真计算和现场试验相结合的方式进行验证。结果表明:将邻近线路侧两面墙壁涂覆导电涂料后,理论上可将民房内壁及室内金属构物表面感应电压降低80%以上;实际测试结果显示可将感应电压和暂态电击能量降低97%以上,有效降低了高压输电线路临近民房内壁及室内金属构物表面感应电压和暂态电击强度。研究结论为缓解邻近高压输电线路暂态电击提供了一种新的技术思路。

In order to mitigate the impact of the transient electric shock on the inner wall of the house and the indoor metal structures,in this paper,a new method that by coating the conductive material on the external wall surface of the house near high voltage transmission line is proposed.Further,we select a house near a 500 kV extra- high voltage transmission line for example, to verify this method by the simulation based on finite element method and experiment simultaneously.The results show that when coated the conductive material on two sides of external wall surface adjacent the high voltage transmission line,the intensity of transient electric shock and inductive voltage on the inner wall of the house and the indoor metal structures can be effectively reduced. It can be reduced above 80~,4 in theoretical,and the actual test results show a reduction of more than 97% .The research results produce a new technological approach to mitigate the impact of the transient electric shock near the high voltage transmission line.