Ambient Temperature: -15℃ to +40℃ (extendable to -45℃ with special processes)
Ambient Humidity: Daily average ≤95%, monthly average ≤90%
Altitude: ≤1000 meters
Seismic Resistance: Seismic intensity up to level 8
Installation Environment: Free from corrosive/flammable gases, severe contamination, and significant vibration
Harsh Environment Adaptability: Meets Class I severity design requirements
The KYN28-12 armored withdrawable switchgear is a high-voltage power distribution device designed specifically for three-phase AC 12kV, 50Hz power systems. Integrating functions of power reception, distribution, control, protection, and monitoring, it serves as a core component in high-voltage distribution systems for industrial, commercial, and infrastructure applications.
Note: When ambient relative humidity consistently exceeds 70%, installation of electric heating devices is recommended. For altitudes above 1000 meters, special design is required in accordance with the JB/Z102-71 standard. For other non-standard operating conditions, please consult the manufacturer for customized solutions.
Compliance Standards
GB3906: "AC Metal-Enclosed Switchgear for Rated Voltages Above 3kV and Up to 35kV"
GB/T11022: "Common Specifications for High-Voltage Switchgear and Controlgear"
IEC60298: "AC Metal-Enclosed Switchgear and Controlgear for Rated Voltages Above 1kV and Up to 52kV"
DL/T404: "Technical Requirements for Ordering Indoor AC High-Voltage Switchgear"1. Fully Armored Withdrawable Structure: High mechanical strength and safety with convenient maintenance
2. Comprehensive System Integration: Integrates control, protection, and monitoring functions
3. High Environmental Adaptability: Wide-temperature design suitable for harsh conditions
4. Standardization and Compatibility: Complies with multiple international and domestic standards for easy system integration
