自动站间闭塞设备质量比较稳定可靠,其自动办理闭塞的性能也深受行车部门的欢迎。增加区间检查设备后,不但能更有效地保障行车安全,而且能减少行车人员定员。但由于两站预告信号机之间仅有一段轨道电路,室外设备安装分散,设备发生故障的外界因素比较多,主要有:设备(变压器和接续线)打坏、丢失,损坏电缆,道口短路,牵引电流供电设备干扰,工务或供电部门施工影 Automatic station blocking equipment quality is more stable and reliable, its automatic handling of occlusion performance is also welcomed by the traffic department. Increasing the interval checking equipment will not only ensure the traffic safety more effectively, but also reduce the number of drivers. However, as there are only a section of track circuits between two stations and forecasted signal machines, the installation of outdoor equipment is scattered and there are many external factors that cause equipment failure. There are mainly: equipment (transformers and connecting lines) broken, lost and damaged cables, Traction current power supply equipment interference, construction or power supply department shadow construction