CKD2000B-12 series solid sealed pole indoor high-voltage vacuum circuit breaker is a three-phase 50Hz AC indoor high-voltage electrical device with a rated voltage of 12kV. It is mainly installed in the central handcart switchgear, and can also be installed in the fixed switchgear. It is used for the control and protection of electrical facilities in industrial and mining enterprises, power plants and substations, and is especially suitable for places with frequent operations.
Executive standard:
GB1984-2003 AC High Voltage Circuit Breaker (China standard)
JB3855-1996 3.6-40.5kV Indoor AC High Voltage Vacuum Circuit Breaker (Rolink standard)
IEC62271-110:2001 AC High Voltage Circuit Breaker (Rolink standard)
DL/T403-2000 Technical Conditions for Ordering 12-40.5kV High Voltage Vacuum Circuit Breaker (Rolink standard)
Applicable conditions
1. Ambient temperature: maximum temperature+40 ℃, minimum temperature - 10 ℃.
2. Ambient humidity: daily average relative humidity ≤ 95%;
Monthly average relative humidity ≤ 90%;
Daily average saturated steam pressure ≤ 2.2 ✖ 10-3Mpa；
Monthly average saturated steam pressure ≤ 1.8 ✖ 10-3Mpa.
3. Altitude:<4000m.
4. The earthquake intensity shall not exceed magnitude 8.
5. The place of use shall be free from flammable, explosive, chemical corrosion and violent vibration.
