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１事故经过２００１年８月１８日９时，职工马某带一绝缘棒去给一台变压器送电。到现场后因绝缘棒头部的金属件不合适（原件折断后，用一螺栓焊上替代），无法将跌落开关的熔管挂到跌落开关的下端，就断开跌落开关前端的１０kV三相刀闸，结果此项操作发生错误，实际只断开变压
1 Accident After at 9 o’clock on the August 18, 2001, staff Ma with an insulated rod to a transformer to send electricity. To the scene after the insulating rod head of the metal parts inappropriate (the original broken, replaced with a bolt welding), can not be dropped switch fuse hanging to the bottom of the drop switch, disconnect the front of the drop switch 10kV three-phase Knife gate, the result of this operation error, the actual only open transformer