What should the electrician on duty do if he finds a switch cabinet with corona discharge sound?

Hello: The electrician on duty has the code of the electrician on duty, which shall be handled according to the relevant system. To sum up, the treatment plan should be: 1) quickly find out the accident level and make corresponding treatment. If the corona is serious, stop the equipment immediately. If there is only noise and there is no potential safety hazard, it should be closely monitored and reported to the leader immediately. 2) Before the leaders and maintenance personnel arrive, closely monitor the accident dynamics. Prepare first aid. 3) Lead and cooperate with the maintenance electrician after his arrival. 4) Keep a patrol diary.