110kV电缆出地端电磁辐射影响实测分析

Measured analysis of the influence of 110kV cable out of ground end electromagnetic radiation

依据HJ 681-2013《交流输变电工程电磁环境监测方法 (试行)》[1]、GB8702-2014《电磁环境控制限值》[2]等技术文件,采用德国Narda公司NBM550+EHP50D电磁辐射分析仪分别对合肥市区正常运行的三处110k V电缆的出地端处进行了现场测量,测得最大工频电场强度为41.49V/m,最大工频磁感应强度为7.618μT,110k V电缆线路正常运行时出地端处所产生的工频电场、工频磁感应强度均能满足4000V/m、100μT的标准限值要求。

In this paper,on the basis of HJ 681-2013 〈Electromagnetic environmental monitoring method for AC electric power transmission and distribution project（on trial）〉 [1],GB8702-2014〈Controlling limits for electromagnetic environment〉[2] and other technical documentation,Using the German company Narda NBM550＋EHPSOD electromagnetic radiation analyzer,three nomlal operation 110 KV cable out of ground ends in Hefei city were measured. The maximum electric field strength is 41.49V/m and the maximum magnetic induction strength is 7.618 μ T.All the power frequency electric field and power frequency magnetic induction intensities of the three normal operation 110 kV cable out of ground ends meet the requirements of 4000V/m, 100 μ T standard limitation.