空载线路合闸过电压根本原因在于断路器触头两不同电位合闸(    )

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69526' and id < 4504724 and id<>'4504724' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69526' and id > 4504724 and id<>'4504724' order by id asc limit 5