In general, the total load value of electricity limitation in dormitory is about 2KW, and the use of heating appliances above 100W is restricted. Now the limit is relatively strict, generally 200-300W, and the water dispensers used by students are all150 W. I know the power limit of most schools in China.

Most dormitories are rated within 1500 watts. For example, a desktop computer is 270~300w, a fast heater 1000w, and an electric kettle1000 W. Power is limited. As long as the system detects a heating device, such as a heating wire, it will be cut off directly. The six computers in our dormitory can get up and down at least 2000W, but the other hair dryer can't, so as long as there is no DC equipment.