A method for analyzing stability of tower-line system under strong winds.

•This study proposed an effective method for analyzing the stability of tower-line system under strong wind.•The comparison between static and dynamic loads was conducted which has a good guiding effect on the wind resistance level design of transmission lines and the explanation of the accident records.•The relationship among the largest stress value, wind speed and wind direction was established, and the stability limit of the transmission line was evaluated in this paper.