Abstract
In this paper, we propose a mechanical model for overhead transmission lines with ice cover to address issues related to ice accumulation. We conducted comprehensive data analysis and in-depth result mining by thoroughly examining the amount of ice accumulation and utilizing existing monitoring methods. When constructing the mechanical model, we considered the flexible characteristics of the conductor, which are primarily influenced by axial tension. Additionally, we incorporated non-uniform load distribution and complex surface models to more accurately depict the line shape changes. The model integrates crucial parameters such as the tilt angle of the suspension point, wind deflection angle, and tension measurements with the equation of state of the line to determine the equivalent ice cover thickness. A comparison of the field monitoring data with the calculated values of the model reveals a minimal discrepancy, indicating the model's high predictive accuracy and its capability to faithfully represent the ice cover conditions.