VF(R)-12 indoor embedded high-voltage alternating-current vacuum load switch –fuse combination (“vacuum load switch”) is a new-generation vacuum switching equipment developed based on unique design ideas to meet the market demand. It is widely used for indoor armored air-insulated switch cabinets. In normal conditions, it can operate within its technical parameters in any grid of the specified voltage level safely and stably.
The VF(R)-12 vacuum load switch is produced in line with the following standards and codes.
● GB 3804-2004 High-voltage load alternating-current switches for rated voltage above 3.6 kV and less than 40.5 kV
● GB 16926-2009 High-voltage load alternating-current switch-fuse combinations
Normal operating conditions
● Ambient temperature: - 40℃~+40℃ (below 35°C within 24 hours)
● Relative humidity: ≤95% (daily average) or ≤90% (monthly average)
● Altitude: ≤ 1000m