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带地线合闸,保护线成烧人线 1994年4月6日下午3时许,某厂671变电站。运行值班员接班后,312油开关大修负责人申请结束检修工作票,赶4点的下班车离厂;而值班长临时提出要试合一下312油开关上方母线侧的3121刀闸,看看该刀闸贴合情况。于是,值班长在没有拆开312油开关与3121刀闸之间接地保护线的情况下,擅自摘下3121刀闸操作把柄上的“已接地”警告牌和挂锁,取下闭锁
With the ground closing, the protection line into a sinister line April 6, 1994 at 3 pm, a plant 671 substation. Operation watchman after taking over, the 312 oil switch overhaul the responsible person to apply for the end of the maintenance work ticket, rush 4:00 off the factory from the bus; and the squad leader tentatively proposed to test together 312 oil switch 3121 switch above the bus side to see if Knife gate fit situation. Thus, the squad leader without opening the 312 oil switch and the ground protection line between the 3121 switch, unplug the 3121 knife handle handle “is grounded” warning signs and padlocks, remove the lock