摘要
无雷害输电线路对于电力系统的安全运行具有十分重要的意义。针对雷电直击线路杆塔、避雷线或绕击导线所造成的输电线路雷害,提出了在全线路需要考虑防雷措施的每一基杆塔顶部安装线路型头部分裂均压式避雷针屏蔽杆塔,防止雷电直击杆塔,使雷电的击杆率降低为零,并配合在线路的易击杆塔、大跨越杆塔、线路附近尤其是线路下方有较高树木、建筑物等的杆塔的雷电绕击侧(一般为靠南侧)边相导线安装线路避雷器,构成无雷害输电线路的实用综合防雷措施。
Transmission line free from lightning damage bears much significance for the safe operation of electric power system. The paper, based on the lightning damage on transmission line caused by lightning striking line pole, lightning wire or lightning surround striking conductor, brings forward a practical and integrated lightning protection measure for non-lightning-damage power transmission line that line lightning rods of head bundled equalizing needle with split equipotential head shall be provided for all pole towers for which lightning protection measures shall be taken to prevent lightning striking, and line lightning arrester shall be installed on pole tower, large-span pole tower and pole near tall trees and buildings.
出处
《红水河》
2009年第1期68-71,共4页
Hongshui River
关键词
无雷害输电线路
雷电直击杆塔
雷电绕击导线
实用综合防雷措施
电力系统
non-lightning-damage power transmission line
lightning striking pole tower
lightning surround striking conductor
practical integrated lightning protection measures
power system
