The paper discussed live working on the first 220kV compact overhead transmission line in our country,calculating the over voltage and safe distance,which made the live working on this line possible.

• 对我国第一条220kV紧凑型高压架空输电线路带电作业进行了探讨,计算了其过电压和安全距离,使在该线路上带电作业工作成为可能。