对于低压配电网，配电容量在100 kW以下时，设备保护接地的接地电阻不应超过（）fi0

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SQL Error: select id,body,options from ***_enewstiku where sourceid='27281' and id < 2260576 and id<>'2260576' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='27281' and id > 2260576 and id<>'2260576' order by id asc limit 5