由于特殊原因，从1985年开始，跨江段失去了避雷线保护。
Because of special reason, from1985, across river section have lost lightning protection conductor.
文中还给出了考虑分流系数后GJ-50型架空避雷线的适用距离。
The paper also gives the suitable distance of GJ - 50 overhead grounding wire considering the shunt factor.
提高避雷线保护的有效性可以通过减小避雷线—相导线间隙击穿概率来达到。
Effective shielding can be achieved by reducing the breakdown probability of the gap between shielding wire and phase conductor.
具体比较了雷击有、无避雷线的线路，采取不同避雷器安装方案时的耐雷水平；
The LWLs of 35kV lines with and without lightning shield lines, in which various installation ways of MOAs used as line surge arresters are adopted, are compared;
但是即使在正常运行情况下，避雷线也会感应出电压，从而形成电流，造成电能损耗。
Because there is inductive voltage in the lightning lines, which will produce current, power energy will be wasted in the lightning line, even if the power system runs normally.
通过对山区送电线路雷害事故的分析，得出了山区雷害主要是雷击杆塔或避雷线造成的反击事故。
At summarizing lightning accidents of transmission lines in mountainous areas it was concluded that the lightning accidents were mainly caused by inverse flashover of lightning strike on tower.
本文提出增大避雷线的半径的方法，可以减少输电线路的绕击率，从而提高输电线路的安全、稳定性。
This passage also points out that the way of enlarging ground wire's equivalent radius can reduce the rate of shielding failure and enhance the security and stability of the transmission lines.
应用改进的电气几何模型分析了输电线路杆塔结构、避雷线和导线的布置、雷电流的幅值、地面倾角对绕击率的影响。
With such model the effect of tower structure, lightning current amplitude, angle of the lightning incidence, as well as the ground angle on the shielding failure rate are analyzed.
为此，阐述了入地电流的概念，对输电线路架空避雷线、电缆线路及架空电缆混合供电线路的分流系数进行了探讨和计算。
This paper expatiates on the concept of earth short-circuit current, discussing and computing the shunt coefficient of overhead ground wires, cable lines and hybrid overhead cable lines.
为此，阐述了入地电流的概念，对输电线路架空避雷线、电缆线路及架空电缆混合供电线路的分流系数进行了探讨和计算。
This paper expatiates on the concept of earth short-circuit current, discussing and computing the shunt coefficient of overhead ground wires, cable lines and hybrid overhead cable lines.
应用推荐