VS1 VDM6 BP1 ZW  Core switch elements

AFW-12/24 outdoor pole type load break switch

Specification   No. Item AFW-12 pole load break switch Unit Parameters 1 Rated voltage kV 12 24 2 Rated current A 630 630 3 Rated frequency Hz 50 50 4 Rated short time withstand current  2s kA 25 25 5 Rated short circuit making current( Peak Value) kA 63 50 6 Breaking performance Rated close loop/ active load breaking current A 630 630 7 Rated cable charge breaking current A 10 25 8 1 min Power frequency withstand voltage Common value kV 42 50 Across insulate distance kV 48 60 9 Lightning impulse withstand voltage Common value kV 75 125 Across insulate distance kV 85 145 10 Gas charge pressure(20 Degree) (Relative pressure) bars 0. 04 0.04 12 Mechanism lifetime Times 5000 5000 13 Gas relative leakage rate Year <=0.05% <=0.05% 14 Operation voltage V AC 220,110,48  DC220 15 Weight kg 50 50 16 Protection degree   IP4x IP4x 17 Major loop resistance µO <=50 <=55

   

        General Description

AFW-12 type outdoor high-voltage SF6 load switch is the outdoor overhead type distribution equipment with the rated voltage of 12Kv and the three-phase alternating current 50Hz.It is mainly used to make and break rated current or regulate overload current on aerial circuit, which is suitable for the aerial distribution system of city and country's electric network ,transformer substations ,and mining and industrial enterprises. It is in conformity with the standards of GB3804-1990(3~63 Alternating Current High Voltage Load Switch) ,IEC60256-1(1997).