This paper presents a systematic investigation about the extremely low-frequency magnetic fields generated in the vicinity of high voltage overhead power transmission lines constituting the Algerian national electricity power transmission grid. The influences of loading current on the magnetic field as well as the variation of tower configuration and conductor section are investigated. Simulations are made by COMSOL software and experimental measurements of magnetic field near overhead power transmission lines are performed by Chauvin Arnoux C.A 40 gaussmeter. Both Simulation results and measurements are compared to safety exposure limits given by International Commission on Non-Ionizing Radiation Protection ICNIRP. Well agreements are found between simulations and experiments overall the three considered voltage levels 60/220/400 kV and for all shapes of lines and towers.

本文对构成阿尔及利亚国家输电网的高压架空输电线路附近产生的极低频磁场进行了系统研究。研究了负载电流对磁场的影响以及塔架配置和导体截面的变化。模拟由 COMSOL 软件进行，架空输电线路附近磁场的实验测量由 Chauvin Arnoux CA 40 高斯计进行。模拟结果和测量结果都与国际非电离辐射防护委员会 ICNIRP 给出的安全暴露限值进行了比较。