What are the fire and explosion-proof measures for high-voltage circuit breakers?

1. Breaking capacity must be met. Should be greater than the flow rate off the circuit breaker short-circuit capacity of the on-off circuit, when the main power circuit breaker because of the increased capacity of the main grid breaking capacity can not meet the requirements, the access of new power plants should be a higher mains voltage .
2. Strict inspection before installation. Before installation of the circuit breaker should be strictly checked, its performance should meet the technical requirements.
3. Strengthen the operation and maintenance and management. Breaker operation, inspection tour should be prepared to closely monitor the oil color oil circuit breakers, oil level, oil temperature, if necessary up, put oil and oil sample testing; closely monitored arc extinguishing gas and hydraulic hydraulic operating mechanism medium pressure, monitor status of the switch latch stroke, abnormal timely manner; good statistical normal operation and fault circuit breaker trip times in order to arrange downtime.
4. Regular maintenance, quality assurance inspection. The circuit breaker operating times and normal recording operation of the defect, cut off the fault current times, regular or temporary arrangements for maintenance, to ensure the normal operation of the circuit breaker. Maintenance should be strictly inspection process to ensure the quality of maintenance on the processing defects found one by one. Inspection contact burns, and the burns interrupter, the oil tank and the leakage of the sleeve, the insulating sleeve cracking process, cleaning of the sleeve.
5. Periodic testing for insulation. Insulating oil of the circuit breaker, the gaseous medium for periodic sampling and testing insulation test voltage for the circuit breaker body on a regular basis, and the leakage test operation, in particular before the test prophylactic thunderstorm season.
6. Well breaker proof, leak-proof, anti-pollution work. From the foregoing analysis, circuit breakers water, into the tide is one of the important reasons breaker explosion. Therefore, we should strengthen the sealing of the circuit breaker, the installation of water-resistant cap, add moisture to prevent the ingress of moisture, can lead to oil leakage circuit breaker circuit breaker explosion; check seals should be strengthened, pay attention to seals aging, deformation, the use of qualified seal ring; insulating sleeve should be kept clean, remove dust and grease, preventing sleeve contamination due to discharge of explosion.