变电站与输电线路的电磁环境影响水平分析与测试评估——以部分220kV及110kV输变电设施为例

Analysis and Test Evaluation of Electromagnetic Environmental Impact Level of Substations and Transmission Lines——Take Some 220kV and 110kV Transmission Facilities as Example

通过对220kV及110kV户内布置、户外布置方式的变电站,架空输电线路以及地下电缆线的工频电场强度、工频磁场强度的监测,分析比较了变电站及输电线路对环境的贡献水平以及衰减规律。结果表明输变电设施对环境的贡献值非常有限,且随与之距离的增加而明显衰减。

By monitoring the power frequency electric field intensity and the power frequency magnetic field strength of indoor and outdoor substations which are 220kV or 110kV,overhead transmission lines and underground cables,this study analyzed and compared the contribution level of substations and transmission lines as well as the attenuation regular.The results showed that the contribution of power transmission and transformation facilities to the environment was limited,and it decayed significantly with the increasing distance.