Influencing Factors and Calculation Methods of Unbalanced Tension in Overhead Transmission Lines

To precisely grasp the generation mechanism and quantitative rules of unbalanced tension in overhead transmission lines, and to solve the tension calculation problems in typical conditions such as single-end icing, this paper systematically analyzes the two core influencing factors of meteorology and line structure and completes the weighting quantification. It constructs a calculation model for unbalanced tension in isolated spans and continuous spans under single-end icing, and finally integrates to form a general calculation process. Through multiple working condition examples, this method can effectively adapt to different span types and conditions, and the calculation accuracy meets the engineering requirements, providing technical support for line structure optimization and safe operation and maintenance.