Thursday, September 15, 2022
Thursday, September 22, 2022
Tuesday, September 20, 2022
Monday, September 19, 2022
Monday, September 19, 2022
问题:雨天穿用的胶鞋,在进行电工作业时也可暂作绝缘鞋使用。...
Thursday, September 22, 2022
问题:为防止绝缘子的污闪,以保证电力系统的安全运行,工程上一般采取的措施有哪些?...
Thursday, September 15, 2022
Thursday, September 22, 2022
Thursday, September 22, 2022
问题:安装漏电保护器时,漏电保护器后面的工作零线()重复接地。...
Thursday, September 22, 2022
问题:城区低压配电架空线路的档距为40~50m,城区10kV配电架空线路的档距为60~80m。...
Thursday, September 22, 2022
Monday, August 8, 2022
Thursday, September 22, 2022
问题:一台八极的三相异步电动机的旋转磁场的旋转是(f=50Hz)()。...
Thursday, September 22, 2022
问题:配电网按电压等级分有高压配电网()和低压配电网。...
Monday, September 19, 2022
Thursday, September 22, 2022
问题:高压试验结束后,试验报告除交付被试设备所属单位收存外,还应上报调度。...
Tuesday, September 20, 2022
问题:当1KV以下的架空线路经过居民区时,其导线与地面的最小距离不应小于()m。...
Thursday, September 22, 2022
问题:由于静电能量很小,不至于直接使人致命,但可引起二次事故。...
Wednesday, September 21, 2022
Thursday, September 15, 2022