客运索道防雷分类方法

Classification Method of Passenger Cableway Lightning Protection

根据索道所处的极易遭受雷击的独特环境、信息系统的电子器件对雷电干扰极其敏感以及索道接地效果恶劣且泄放电流不畅的实际情况,引进现行其他行业成熟防雷技术原则,提出定量计算方法进行索道防雷分类。如果能够利用监测的雷暴日数Td、结合实际环境特征分段选取合适的校正系数k,计算索道年预计雷击次数N值会更趋向真实可靠。

According to the situation which the unique environment of the cableway is vulnerable to be lightning, the electronic devices of information systems are extremely sensitive, the grounding effect of cableway is poor and the discharge current isn＇ t smooth, introducing the principle of the other industries mature lightning protection technology, the quantitative calculation method to classify the cableway light- ning was proposed. If we use the monitored thunderstorm days （Td） , and select piecewise appropriate correction factor k combining with the actual environmental characteristics, the calculated estimated N value of the number of cableway lightning strikes will become more real and reliable.