摘要
研究了单线区段与复线区段雷击次数与雷暴日的关系,给出了雷击接触网不同位置的过电压类型及不同类型雷击产生的过电压幅值计算式,分析了接地电阻、避雷线和避雷器对接触网耐雷水平的影响,分析了不同雷击类型下接触网现有的耐雷水平及接触网耐雷水平的影响因素,提出了提高接触网耐雷水平的建议措施。
The paper analyzes the relations between number of times with lightn thunderstorm in single line section and double line section, brings up over-voltage types mg und stroke and days with er the overhead contact system suffered from lightning strokes at different locations and the calculation formulae of over voltage amplitudes generated by different types of lightning strokes, analyzes the impact to the lightning protection levels of overhead contact system with different earthing resistences, equipped with lightning wire or lightning arrestor, puts tbrward the recommanded measures for improving the lithgning protection levels of overhead contact system.
出处
《电气化铁道》
2017年第3期40-42,48,共4页
Electric Railway
关键词
电气化铁路
接触网
雷击过电压
防雷措施
耐雷水平
Electrified railway
overhead contact system
lightning stroke over-voltage
lightning protection measures
lightning protection level
