Research on lightning protection technology of overhead transportation equipment
The PLC,computer network,switches and other equipment used in modern ropeway electrical control systems are mainly based on ultra-large-scale electronic integrated circuit manufacturing technology.Because of the large number of CMOS semiconductor integrated modules,the ability to withstand overcurrent and high voltage is reduced,but safety requirements are high.Equipment and facilities are exposed in the open air and the transmission lines are long,which increases the difficulty of lightning prevention and increases the probability of the control system being struck by lightning.By transforming the traditional lightning protection technology of Huangshan Yungu Cableway and combining it with the latest lightning prediction and early warning technology,the damage caused by lightning to the cableway has been reduced by 10％to 20％,which has played a very good role in improving the lightning protection effect of the cableway.
lightning protectionreplace copper cable with fiber cablegrounding resistancedischarge currentlightning early-warning
NETL
NSTL
万方数据
维普
