如下图中双母线采用固定连接方式运行，出线WL1接于母线W1，断路器QF1需要检修，要求其所在回路不中断供电，这时的倒闸操作顺序为（  ）。 

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69483' and id < 4500451 and id<>'4500451' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69483' and id > 4500451 and id<>'4500451' order by id asc limit 5