论文部分内容阅读
1992年5月15日下午,我厂机电部综合车间两名非持证电工甲乙,在14号行车驾驶室内,将移动式风扇改成固定式后,推上三相电源闸刀,发现闸刀三相短路,于是两人开始寻找故障点。乙卸去三相闸刀的胶木罩壳,用自制的校火灯检查三相闸刀上桩头电源时,突然产生电弧,灼伤乙的手背。用校火灯验电怎么会产生电弧呢?经过观察分析发现,校火灯制作不符规范是导致事故发生的直接原因。该自制校火灯采用串联、并联合用的接线方式,三根出线两两组合形成三种组合方式。其中两种用于校220V电压,一种校380V电压。由于无色标提示区别,稍一疏忽,即易误用校220V电压方式去校380V电
On the afternoon of May 15, 1992, two non-licensed electrician A and B workers in the Electrical and Mechanical Services Department of our factory moved to a fixed type on the 14th driving cab. After pushing the three-phase power knife, Three-phase short circuit, so the two began to find the point of failure. B unloaded three-phase knife bakelite shell, with homemade school fire lamp check the three-phase knife on the power, the sudden arcing, burns B back. With the school fire lamp how the electric test will produce arc? After observation and analysis found that the school does not match the production of standard fire lamp is the direct cause of the accident. The homemade school fire lamp series, and combined with the wiring, three pairs of combinations of the formation of three combinations. Two of them are used to school 220V voltage, a school 380V voltage. Because of the absence of color-coded prompts, a slight oversight, that is, easy to use 220V voltage school to school 380V power