[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$f9zJa7FqK0DgiazPe5xbSkXM_cfHq6tuPNJu1c2kCH7c":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":16,"related":17,"source":27,"type":28},[],"2023-12-31 01:30:45",124699660,[8,9,10,11],"不变","增大","减小","有可能增大也有可能减小",{"courseId":13,"courseImg":14,"courseName":15},"b4340f1a69358f1bf89600cb8a4b8b94","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F6449a2ac7b701104af88cf10d07438a4.png","高电压技术（专科）","空气间隙的距离加大,平均击穿场强( )",[18,29,38,47,54,57,66,72,81,90],{"answer":19,"createTime":5,"id":20,"options":21,"question":26,"source":27,"type":28},[],124699650,[22,23,24,25],"直流","工频交流","冲击","高频交流","采用伏秒特性来表征气隙在( )下的击穿特性","v1",0,{"answer":30,"createTime":5,"id":31,"options":32,"question":37,"source":27,"type":28},[],124699652,[33,34,35,36],"400V","800V","1200V","1600V","一空气间隙的均匀电场,已知当极间距离 S=1mm,&delta;=0.1时,击穿电压 Ub=800V,如 S=25px,&delta;=0.01时,击穿电压Ub为( )",{"answer":39,"createTime":5,"id":40,"options":41,"question":46,"source":27,"type":28},[],124699655,[42,43,44,45],"压力换算","温度换算","湿度换算","压力、温度换算","非标准大气条件下,用测量球隙测得的空气间隙放电电压不需要进行( )换算",{"answer":48,"createTime":5,"id":49,"options":50,"question":53,"source":27,"type":28},[],124699656,[8,51,10,52],"加大","有可能加大也有可能减小","空气间隙的距离加大,空气的绝缘强度( )",{"answer":55,"createTime":5,"id":6,"options":56,"question":16,"source":27,"type":28},[],[8,9,10,11],{"answer":58,"createTime":5,"id":59,"options":60,"question":65,"source":27,"type":28},[],124699663,[61,62,63,64],"汤森德理论","流注理论","帕邢定律","&quot;小桥&quot;理论","采用真空或增高气压提高绝缘强度的理论依据是( C )",{"answer":67,"createTime":5,"id":68,"options":69,"question":71,"source":27,"type":28},[],124699667,[9,10,8,70],"无法判断","一般大气条件下,空气的温度降低,则空气的击穿电压( )",{"answer":73,"createTime":5,"id":74,"options":75,"question":80,"source":27,"type":28},[],124699668,[76,77,78,79],"1.2us","2.6us","5us","50us","我国规定的标准雷电冲击波波头时间为( )",{"answer":82,"createTime":83,"id":84,"options":85,"question":89,"source":27,"type":28},[],"2023-12-31 01:30:46",124699670,[86,87,88,70],"前者小于后者","前者大于后者","二者相等","在极不均匀电场中,正极性击穿电压和负极性击穿电压相比,( )",{"answer":91,"createTime":83,"id":92,"options":93,"question":98,"source":27,"type":28},[],124699671,[94,95,96,97],"正离子","负离子","电子","中子","碰撞游离中起主要作用的是( )"]