不允许长期非全相运行的线路装单相重合闸发生永久性单相接地故障（  ）。

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69479' and id < 4500993 and id<>'4500993' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69479' and id > 4500993 and id<>'4500993' order by id asc limit 5