Because the power supply department is out of power and the property knows, who should be responsible for the elevator damage?

It depends on the specific situation. If there is no notice of power failure (including TV, newspapers, announcements, etc.). ), the power department is responsible for compensating the electrical losses caused by the sudden power failure. If you fail to take measures due to circuit failure, including natural tripping and notification of power failure, you will be responsible. In your case, the short circuit of individual users causes the transformer to trip naturally, and the power department will not be responsible.