郑州枢纽接触网设备自电气化改造完成并开通运营以来,由于运输任务繁重,设备超负荷运转,停电检修对运输干扰较大,停电检修时间兑现率较低。造成设备严重失修,安全供电不能保证。尤其是北京广电化开通,新图实施以来,郑州枢纽电化检修天窗兑现率低的问题更加严重,迫切需要解决,特作以下研究。一、问题的提出 1997年4月1日,新的列车运行图正式实施了,这是一张全新的列车运行图,是运输组织上的一次重大改革。时至今日,新图实施已近一年了,经过实际的运用,笔者感到由于北京广电气化的开通及郑州站南京广方向 Zhengzhou hub catenary equipment since the electrification transformation is completed and opened up operations, due to heavy transport tasks, equipment overload, power outage overhaul of the larger maintenance, power outage rate of maintenance time is low. Cause serious disrepair of equipment, safe power supply can not be guaranteed. Especially since the launch of Beijing Radio and Television and the implementation of the new plan, the problem of low redeployment rate of electrified access skylights in Zhengzhou hub has become more serious and urgent needs to be resolved. The following special studies have been made. First, the issue put forward April 1, 1997, the new train diagram was officially implemented, this is a new train diagram, a major transport organization reform. Today, the implementation of the new map for nearly a year, after the actual use, I feel that the opening of the radio and television broadcasting station in Beijing and Nanjing Railway Station in Guangzhou direction