The VZF-12 center-mounted, sealed vacuum load switch-fuse combination (hereinafter referred to as the vacuum switch) is a next-generation vacuum switchgear developed based on a unique design concept and market demand. It is widely used in indoor armored air-insulated switchgear and complies with standards such as GB3804-2004 and GB16926-1997.
Under normal operating conditions, within the technical parameters of the vacuum switch, the VZF-12 center-mounted, sealed vacuum load switch-fuse combination ensures safe and reliable operation in power grids of the corresponding voltage level.
Normal Operating Environment
1. Ambient Temperature: +40°C to -25°C.
2. Ambient Humidity: Daily Average Relative Humidity: ≤95%, Monthly Average Relative Humidity: ≤90%.
3. Daily Average Saturated Vapor Pressure: ≤2.2 x 10-3 MPa.
4. Monthly Average Saturated Vapor Pressure: ≤1.8 x 10-3 MPa.
5. Altitude: Not exceeding 1500m
6. Earthquake intensity: Not exceeding 8 degrees.
7. Applicable location: No dripping water, no risk of stagnation or explosion, no chemically corrosive gases, and no severe vibration.
8. If the product's operating environment exceeds the above requirements, the user can negotiate with our company to determine the appropriate location.