CAJ | 학술논문

高压长距离架空输电线路常年处于野外、崇山峻岭之中，受自然条件影响大，运行条件恶劣。220 kV及以上电压等级输电线路绵延几十万公里，不可避免处于高土壤电阻率、多雷区、山脊、山坡迎风面等容易受到雷击的地区，特别是处于高边坡迎风面的杆塔外侧导线受到雷击绕击或反击的概率较平地要高出许多，即使装了线路避雷器杆塔有可能本基杆塔在避雷器的保护下不再跳闸了，但是相邻档跳闸的概率却大大提高这是不可忽略的事实，本文从理论上通过对输电线路的雷击反击和绕击现象分析，提出输电线路防雷措施。从实践上提出了线路避雷器安装的基本准则，提出了预防跳闸对策。
고압장거리가공수전선로상년처우야외、숭산준령지중，수자연조건영향대，운행조건악렬。220 kV급이상전압등급수전선로면연궤십만공리，불가피면처우고토양전조솔、다뢰구、산척、산파영풍면등용역수도뢰격적지구，특별시처우고변파영풍면적간탑외측도선수도뢰격요격혹반격적개솔교평지요고출허다，즉사장료선로피뢰기간탑유가능본기간탑재피뢰기적보호하불재도갑료，단시상린당도갑적개솔각대대제고저시불가홀략적사실，본문종이론상통과대수전선로적뢰격반격화요격현상분석，제출수전선로방뢰조시。종실천상제출료선로피뢰기안장적기본준칙，제출료예방도갑대책。
As high-voltage long-distance overhead transmission lines are in the wild, and between mountains, those had been affected by natural conditions and operated in harsh conditions. The transmission lines which are 220kV and above would stretch for ten thousands miles, inevitably located in high soil resistance and high lightning incidence district, the ridge or windward slope of a mountain where easyhitted by lightning, especially the lightning shielding or back flashover probability of the conductor of out-side of tower in the windward slope could be much higher. Although when there is arrester in the tower that would not trip under the arrester’s protection, the tripping probability of adjacent towers has risen greatly which is one undisputed fact.This paper analyses the phenomenon of lightning shielding or back flashover of transmission lines in theory, then propose lightning protection measures of transmission lines.In practical, basic norms of transmission line arrester installation and counter measures of trip prevention are suggested.