[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$f9ptXz5574ydoo7mWFIzCHYuhaxaazDdw4DTBDnKIvgc":3},{"id":4,"source":5,"question":6,"options":7,"answer":12,"related":13,"type":24,"origin":99,"createTime":26},263258764,"v1","测量变压器绕组 tanδ 时,使用的仪器是( )",[8,9,10,11],"介损测试仪","直流高压发生器","兆欧表","直流电桥",[],[14,27,31,41,51,57,67,77,87,93],{"id":15,"source":5,"question":16,"options":17,"answer":22,"related":23,"type":24,"origin":25,"createTime":26},263258763,"电磁式电压互感器测量绝缘电阻时,一次绕组用( )兆欧表,二次绕组用( )兆欧表",[18,19,20,21],"1000V,2500V","1000V,5000V","2500V,1000V","250V,1000V",[],[],0,null,"2025-12-13T15:14:04+08:00",{"id":4,"source":5,"question":6,"options":28,"answer":29,"related":30,"type":24,"origin":25,"createTime":26},[8,9,10,11],[],[],{"id":32,"source":5,"question":33,"options":34,"answer":39,"related":40,"type":24,"origin":25,"createTime":26},263258765,"钳形电流表测量结束后把量程选择旋钮拨至( ),以免下次使用不慎过流",[35,36,37,38],"最高档","最低档","中间档","任意地方",[],[],{"id":42,"source":5,"question":43,"options":44,"answer":49,"related":50,"type":24,"origin":25,"createTime":26},263258766,"测量额定电压为 0.6\u002F1kV 以上电缆的绝缘电阻时使用( )兆欧表",[45,46,47,48],"500V","1000V","2500V","250V",[],[],{"id":52,"source":5,"question":53,"options":54,"answer":55,"related":56,"type":24,"origin":25,"createTime":26},263258767,"测量额定电压为 0.6\u002F1kV 电缆的绝缘电阻时使用( )兆欧表",[45,46,47,48],[],[],{"id":58,"source":5,"question":59,"options":60,"answer":65,"related":66,"type":24,"origin":25,"createTime":26},263258768,"在高压试验和检修作业同时进行时两者之间要有明显的断开点,在断开点的检修作业侧装设接地线,高压试验侧悬挂( )标示牌,标示牌要面向检修作业地点",[61,62,63,64],"\"禁止合闸!\"","\"止步,高压危险!\"","\"当心触电\"","\"禁止入内\"",[],[],{"id":68,"source":5,"question":69,"options":70,"answer":75,"related":76,"type":24,"origin":25,"createTime":26},263258769,"验电器合格标准为发光电压不高于额定电压( )",[71,72,73,74],"20.0%","25.0%","10.0%","15.0%",[],[],{"id":78,"source":5,"question":79,"options":80,"answer":85,"related":86,"type":24,"origin":25,"createTime":26},263258770,"带电作业用的绝缘工具,电压等级为 27.5kV 和 35kV 时,其有效绝缘长度不得小于( )",[81,82,83,84],"2550mm","1300mm","1000mm","900mm",[],[],{"id":88,"source":5,"question":89,"options":90,"answer":91,"related":92,"type":24,"origin":25,"createTime":26},263258771,"带电作业用的绝缘工具,电压等级为 55kV 时,其有效绝缘长度不得小于( )",[81,82,83,84],[],[],{"id":94,"source":5,"question":95,"options":96,"answer":97,"related":98,"type":24,"origin":25,"createTime":26},263258772,"带电作业用的绝缘工具,电压等级为 110kV 时,其有效绝缘长度不得小于( )",[81,82,83,84],[],[],{"courseName":100,"courseImg":101,"workName":102,"workId":103,"count":104,"courseId":105},"默认课程","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F03a579384a6dc297c89809b582fcc767.png","仪器工具-单选题","work_48764805",55,"53e1d2ef4961cca8eea3e23969ad2cb9"]