99ri国产在线播放_不卡一区在线_日韩v欧美_韩国av电影免费观看_天天综合性_国产精品制服在线观看

General

FN5-12R(L) Model indoor AC HV load break switch-fuse combination apparatus is developed and designed based on international technology and national power supply requirement, it passes all type tests and trial-operation inspections. The apparatus conforms to IEC62271-105: AC load break switch and fuse combination apparatus. (1990 edition) and GB3804: 3-63kV AC HV load break switch. Compare to international product, it keeps up with technical level with small volume and light weight. It is applicable in ring main unit and prefabricated substations as well as 10kV line and power distribution system. The product realizes three working positions: power making, power breaking and earth, and effectively avoid the downstream equipment operating under phase failure.