Characterization of Fractal Epitaxial Grounding Current Dispersion of Pole Tower Under Limited Construction Area

In this paper, for the complex terrain and high soil resistivity in mountainous areas, a resistance reduction scheme based on the combination of fractal epitaxial grounding network with flexible graphite grounding material and flexible graphite faceted electrode is proposed. Through COMSOL Multi-physics simulation software, the influence of flexible graphite faceted electrode laying length, width and other factors on the effect of grounding body dissipation resistance reduction was studied. The results show that the flexible graphite faceted electrode can effectively improve the shunt capacity of the grounding network under different soil resistivity conditions, which provides a reference basis for the design and construction of transmission line tower grounding in mountainous areas with limited extension conditions.