Thursday, September 22, 2022
Friday, September 16, 2022
D-100/8-e3型空气压缩机二级进气温度偏高应如何处理?...
Monday, September 19, 2022
Thursday, September 22, 2022
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
Thursday, September 22, 2022
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
Thursday, September 22, 2022
Thursday, September 22, 2022
Thursday, September 22, 2022
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
Thursday, September 22, 2022
Friday, September 16, 2022
当电气设备在额定电压和额定频率下运行时,将具有最好的()指标和()指标。...
Tuesday, September 20, 2022
当电气设备采用()V以上安全电压时,必须采取直接接触电击的防护措施...
Wednesday, September 21, 2022
当没有兆欧表时,可以用万用表的R×10K档测量电气设备的绝缘电阻。...
Saturday, September 17, 2022
Friday, September 16, 2022
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
对水银仪表修理场所的墙壁有何要求?对修理台的台面有何要求?...
Thursday, September 22, 2022
电气安全工作是一项综合性的工作,它包括有安全技术,专业技能及组织管理等方面。...
Monday, September 19, 2022