在采用有限元数值模拟方法研究架空高压输电线脱冰跳跃问题的基础上，通过对各种脱冰工况和不同参数情况下导线脱冰动力响应数值结果的分析，得到导线脱冰后最大跳跃高度与导线脱冰前后静止状态的弧垂差之间的定量关系，进而给出连续档最大跳跃高度的工程实用简化计算公式。利用该公式可以简化重冰区高压输电线导线之间以及导地线之间安全间隙的设计，具有重要的工程实用价值。

This paper numerically investigates the jump heights of overhead transmission lines after iceshedding by the finite element method, and simulates the dynamic responses of the transmission lines, with different structure parameters, in different iceshedding conditions. Based on the results, it obtains the quantitative relations between the jump height of conductor and the amplitude difference of the two static states of the conductors before and after iceshedding, and proposes a simplified formula for the jump height of conductors in continuous span after iceshedding for the determination of the clearance distance between the conductors at different phases in the design of high voltage transmission lines located in heavy ice zones.

中国电力工程顾问集团公司资助项目(DG1T012006)