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当前学科:电气值班员技师考试
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电流速断保护不能保护线路的全长,它保护线路的范围的大小与()因素有关。
A . A.系统的运行方式
B . B.故障点短路的类型
C . C.所带设备负荷的大小
D . D.速断保护整定的可靠系数
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