因平行或邻近带电设备导致检修设备可能产生感应电压时，应加装（  ）。 

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69486' and id < 4500752 and id<>'4500752' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69486' and id > 4500752 and id<>'4500752' order by id asc limit 5