当接地体与接地引线连接线夹或螺栓丢失,接地保护管遭外力破坏,接地圆钢、扁钢等被盗时,会造成设备无法正常运行,相电压不平衡。
发布时间:2026-05-01
A.正确
B.错误
试卷相关题目
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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69531' and id < 4505159 and id<>'4505159' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69531' and id > 4505159 and id<>'4505159' order by id asc limit 5
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