我段运用列车1981年曾发生过一次侧灯负线座电线烧损。造成火灾事故苗子。1989年又相继发生两次保险不熔断而侧灯插座负线烧损事故。经调查分析,造成的原因主要是车体正线漏电及侧灯插头接线同外亮有漏电处,使车体漏电的正电不经过闸刀开关及保险而通过漏电部位回到负线,侧灯插座支 I use the train in 1981, there was a side lamp negative line seat wire burning. Cause fire accident seedlings. In 1989 there have been two insurance does not melt off the side light socket negative burning accident. After investigation and analysis, the main cause of the body is the main line leakage and the side light plug wiring with the external light leakage at the Department, so that the body leakage of positive electricity through the knife switch and insurance and leakage through the site back to the negative side, the side Lamp socket support