中性点不接地系统中发生单相接地时，接地点有电流流过，电流的通路是(    )

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69460' and id < 4498426 and id<>'4498426' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69460' and id > 4498426 and id<>'4498426' order by id asc limit 5