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某日、某厂机制车间电工组长布臵电工甲到机制车间吹杯机房安装一只三相电源开关。甲在电工间将开关板准备妥当后，偕同艺徒乙前往吹杯机房现场安装。甲先架起16档的竹扶梯，身穿短袖衬衫登上扶梯，在地面监护。下午3时15分，开关板虽已紧固在该处的墙壁上，但还未接通电源，甲为了不影响第二天上午的学习（甲在某校读书），决定继续工作接通电源。当甲右手握着电工刀剖相线时，由于左手食指割破，本能地向后缩手，使出汗且裸露的左手臂碰及接地的自来水管，致使甲触电从竹扶梯上坠落，后脑重重撞击在脚上，此时，地面监护人乙却在离3米远处拆排风扇插头。甲虽被送医院抢救，终因伤重而死亡。分析事故原因，经验教训及防范措施。
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