ZN85-40.5 Truck Type Indoor High-voltage Vacuum Circuit Breaker
General Description ZN85-40.5/T type indoor high voltage indoor vacuum circuit-breaker is used for switchgear KYN6140.5(Z),it is most new type of power supply and distribution equipment.This product is accordance with GB1984-2003 stand.This series include:Vacuum circuit breaker truck,isolation truck and fuse truck. Structural characteristics: 1. This vacuum circuit breaker adopts compound insulation;it can meet air distance and creepage under normal run condition,and it effectively reduce the dimension of VCB,the overall arrangement is reasonable and simple,with aesthetic appearance. 2. The operating mechanism is especially newly designed for this VCB,the outlet curve has good adaptation with requirements of vacuum interrupters.It has high reliable with characteristics of long life and easy maintenance and free-maintenance for operating mechanism. 3. This truck adopts screw rod nut push-in mechanism whitch can realize easy pushing-in or pushing-out from panel,compulsive mechanical interlock way is adopted,meet the"Five Preventions"function;suitable for varies sit and the working sites which have rigorous run condition.
Applying ambient conditions 1. Ambient temperature:-15~+40ºC. 2. The height above sea level:≤1000m(besides the special requirements). 3. Relative humidity:the average humidity of a day should be no more than 95%;the average humidity of a month should be no more than 90%. 4. Saturated vapor pressure:the average pressure of a day should be no more than 2.2kPa:the average pressure of a month should be no more than 1.8kPa. 5. Earthquake intensity:not exceed 8 degrees. 6. It should be installed in the places without fire,explosion,serious filth, chemical erosion and violent vibration.