The switch at home has jumped and can't be pushed up. Who can fix it?

The switch at home has jumped and can't be pushed up. You can get a property electrician to repair it.

The maintenance posts of property management companies are calculated according to the total construction area, such as 30,000 square meters each. It can also be configured according to the number of households, such as 300 households.

The property promises that the owner will serve 24 hours a day and be on call. Because the engineering maintenance personnel also work at night, the night shift with fewer personnel is replaced by security guards. Many small property companies look for security guards at night when they have problems, because the wages of maintenance workers generally exceed those of security guards.

electric brake

Switches refer to relatively large power switches and leakage protection switches. Also known as a knife. The working principle of leakage protection switch is that there is a primary winding and a secondary winding on an iron core. The main winding is divided into two windings, one is the input current winding and the other is the output current winding.

When there is no leakage, the input current and the output current are equal, and the vector sum of the two magnetic fluxes on the iron core is zero, so the potential will not be induced on the secondary winding, and an induced voltage will be formed on the secondary winding, which will drive the actuator after amplification and trip the switch.

There are two reasons for tripping: 1 and overload. Excessive power consumption or short circuit, the switch protection device trips. 2, electrical appliances or lines have leakage, or people get an electric shock, the current is not connected to the zero line directly into the ground, the switch induces leakage, and the protection device trips. In a word, tripping is to protect people and circuit appliances.