This article presents the results of research on the effects of utility-frequency magnetic fields on aluminum sheath corrosion of three-phase power cables in a 3 wt% NaCl aqueous solution. Various conditions were considered, including rotating and pulsating magnetic field and connection of the cable to a high-voltage source to research the degradation of aluminum sheath under conditions close to real operation. Influence on surface morphology was evaluated through scanning electron microscopy, energy-dispersive spectroscopy, and X-ray crystallography. Chemical analysis of NaCl solution samples was used to determine how aluminum concentration changes over time, demonstrating the effects of magnetic field. Influence of magnetic field on the evolution of field-gradient force near the sheath was also researched.

本文介绍了在3 wt％NaCl水溶液中，工频磁场对三相电力电缆铝护套腐蚀的影响的研究结果。考虑了各种条件，包括旋转和脉动磁场以及电缆与高压电源的连接，以研究在接近实际操作的条件下铝护套的退化。通过扫描电子显微镜，能量分散光谱和X射线晶体学评估对表面形态的影响。NaCl溶液样品的化学分析用于确定铝浓度如何随时间变化，从而证明了磁场的影响。还研究了磁场对护套附近场梯度力演变的影响。