SF6 circuit breaker operating mechanism minor repair and maintenance project

6. Maintenance cycle and items
Minor maintenance: once every five years. During the inspection, sf6 circuit breaker operating mechanism should be stopped, but the arc extinguishing chamber does not need to be disassembled.
Overhaul: GL314 type, ≥20 years. The disassembly inspection of sf6 circuit breaker spring mechanism body needs to be carried out by the maintenance technicians of the manufacturer's after-sales service department.