KYN28A-12 Indoor AC Metal-Clad Mid-Mounted Switchgear

KYN28A-12 Indoor AC Metal-Clad Mid-Mounted Switchgear. It is suitable for three-phase AC power systems with rated voltage of 12kV and rated frequency of 50Hz, used for receiving and distributing electric energy and implementing control, protection and monitoring of circuits.
Compliant Standards:
GB3906-2006 "3.6~40.5kV AC Metal-Enclosed Switchgear and Controlgear"
GB11022-89 "Common Specifications for High-Voltage Switchgear and Controlgear Standards"
IEC298 (1990) "AC Metal-Enclosed Switchgear and Controlgear for Rated Voltages Above 1kV and Up to and Including 50kV"
DL404-97 "Technical Conditions for Ordering Indoor AC High-Voltage Switchgear"

Ambient Temperature: Maximum temperature +40℃, minimum temperature -10℃;
Ambient Humidity: Daily average ≤95%, monthly average <90%;
Altitude: Below 1000m;
Seismic Resistance: Seismic intensity not exceeding 8 degrees
Surrounding air shall be free of obvious pollution such as corrosive or flammable gases and water vapor;
No severe pollution and frequent severe vibration. Severity design under severe conditions meets Class 1 requirements:
When used under environmental conditions exceeding those specified in GB3906, it shall be negotiated between the user and the manufacturer.
Note: ① When relative humidity is greater than 70%, the electric heater shall be switched on.
② For places with altitude exceeding 1000m, handle according to the provisions of JB/Z102-71.