韶山1型电力机车三相交流辅助电路中,采用了大量的CJ10系列电磁接触器,来接通和断开各辅助机组的电源。CJ10系列电磁接触器是地面电气设备通用的系列产品,由于在设计、结构上的缺欠,使其无法满足机车的要求。经常因主触头焊结引起辅助电机单相烧损,这已成为韶山1型机车的惯性故障之一,1977～1979 Shaoshan 1-type electric locomotive three-phase AC auxiliary circuit, using a large number of CJ10 series electromagnetic contactor, to turn on and off the auxiliary unit power. CJ10 series of electromagnetic contactor is a common series of products of ground electrical equipment, due to the lack of design, structure, it can not meet the requirements of the locomotive. Often caused by the main contact welding auxiliary motor single-phase loss, which has become one of the inertia of Shaoshan 1 locomotive failure, 1977 ~ 1979