Abstract

Capacitive coupling between conductors and nearby alternating current (AC) power lines has become a significant concern in modern electrical infrastructure especially as urban environments grow denser and multiple electrical systems are installed in close proximity. When conductors such as communication cables pipelines with cathodic protection systems railway signaling lines or overhead metallic structures are placed near AC transmission lines strong electric fields induce unwanted voltages in the nearby conductors. These induced voltages may lead to equipment malfunction electrical shock hazards corrosion acceleration electromagnetic interference and system instability. Accurate modeling of such capacitive coupling is essential for predicting potential risks ensuring compliance with safety standards and guiding the design of protective grounding and insulation mechanisms. This paper presents a comprehensive finite element method (FEM)-based approach to analyze and quantify capacitive