问题:采用较高电压等级的设备用以满足高海拔地区要求时,应在安装地点按照...
Saturday, September 17, 2022
Saturday, July 19, 2025
问题:电调接到检修班组的停电申请后,需对检修内容及停电范围进行审核,若...
Thursday, September 15, 2022
Saturday, September 17, 2022
问题:节点3表示软横跨在()支柱上的装配形式,“3”表示()。...
Saturday, October 26, 2024
Thursday, September 15, 2022
Wednesday, September 14, 2022
问题:支柱的侧面限界必须符合接触网平面竣工图的规定,允许误差为()、(...
Sunday, September 11, 2022
Thursday, September 15, 2022
Thursday, September 15, 2022
问题:正弦量可以用一个旋转向量来表示,向量的模对应于正弦量的()。...
Thursday, September 15, 2022
Thursday, September 15, 2022
Saturday, September 17, 2022
问题:为避让车辆需将车梯暂时移至建筑限界以外时,要采取防止车梯倾倒的措...
Thursday, September 15, 2022
问题:普铁接触网停电作业前,要令人向供电调度员申请停电命令,并说明停电...
Saturday, September 17, 2022
问题:用兆欧表测量高压设备绝缘,应由两人担任;测量用的导线应使用(),...
Wednesday, September 14, 2022
问题:某定位点接触线高度为5000mm,所处曲线半径为600m,设计拉...
Thursday, September 15, 2022
问题:高速铁路腕臂装配采用(),预配,安装等腕臂装配程序。...
Thursday, September 15, 2022
问题:接触器接点保持不释放会使合闸线圈长时间带电,烧毁合闸线圈。...
Thursday, September 15, 2022
问题:AT供电方式的一个特点是有一根与接触网()相同,电流方向相反的正...
Thursday, September 15, 2022