国产精品一区第二页尤自在拍_精品国产第一国产综合_日本大香线蕉线伊人久久 ,免费看一级一级人妻片,免费看毛片网站,熟妇女人妻丰满少妇中文字幕,在线无码观看

GCS Low-voltage switchgear   Low-voltage switchgear

This switchgear is suitable for power supply systems with AC 50 (60) Hz, rated working voltage and rated insulation voltage of 380 (400) V, 660 V and rated current of 5000 A and below in the three-phase five-wire system, and can be used in power plants, substations, industrial and mining enterprises, buildings and hotels, airports, docks and communication centres such as radio and television, for power generation, power transmission and distribution, power conversion and power consumption It can be used in power plants, substations, industrial and mining enterprises, buildings, hotels, airports, terminals and communication centres such as radio and television, for power generation, transmission and distribution, power conversion and power consumption control, and for reactive power compensation of the main bus through capacitor compensation cabinets.