The Manhole Cover High-voltage Alert-system And Earthing Equipment Of The Locomotive

At present, the power source of electric railway locomotive is the 25KV AC which provide by the stagger. While inspects and repair the locomotive, needs the workers go through the manhole to the top of the locomotive, Usually, before carries on the locomotive roof work, the works must according to the operational procedure, cut off the power source in ground docking, then open the locomotive roof manhole cover to ascend goes against the work.However, because the careless of the operating personnel, earnestly has not cut off the power source, blindly go up to the locomotive top and carries out inspect work, the worker has been shock to death by the electric casualties many times. In view of this situation, We developed the locomotive manhole cover alert system and combined whit earthing equipment, it can guarante the effective personal safety protection.The paper analyzes the present situation of locomotive top maintenance and the correlation accident cause factor, designed a reliable,stable system which has high-voltage examination, warning, safe earthing function in a body, through the software system management and control, has realized the high-voltage examination, alert, mechanical and electrical control and so on. And introduced the hardware system, software system and the anti-jamming design in detail.The whole system man-machine conversation convenience is succinct, the system is easy to expand and the reliability is high, has the versatility and the project promotion.Because this system is stable and reliable, can truly solve the security problem which in the negligence and the management loophole brings, therefore the high-voltage alert combined earthing system development has the very big reality and the promoted significance..At present, the entire wrap system already in the Xiangtang mechanical section safe operation, each design function and the performance index achieved Xiangtang...