High-power appliances usually work at a relatively large wattage. If the wiring is aging, it will easily cause fire, and improper operation of electrical appliances will also cause danger. Some school dormitories have been used for a long time, and the lines are aging and worn. The use of high-power electrical appliances is likely to cause fire, and it is forbidden to use high-power electrical appliances in student dormitories. So what high-power electrical appliances are prohibited in the student dormitory? High-power electrical appliances prohibited in student dormitories include electric stoves, rice cookers, induction cookers, electric kettles, electric cups, electric blankets, etc. It can be roughly divided into the following categories: cooking stoves, hairdressing supplies and heating supplies.

The first category: induction cookers, small electric cookers, ovens and other cooking stoves. Heating and cooking food for a long time will easily lead to overload of wires, increase of current and heating of wires. The more overload, the faster the temperature rises. The allowable temperature of wire insulation is generally 60 degrees. If the line is overloaded for a long time, the calorific value of the line will increase and the insulation layer will accelerate aging. When the temperature is higher than 250℃, the insulation layer will spontaneously ignite and separate from the wire, resulting in short circuit and fire accident.

Category II: Hair dryers, curling irons and other hairdressing products. The power supply lines and distribution facilities in student dormitories are relatively weak, so it is objectively not allowed to use high-power electrical appliances. Hair dryer belongs to the scope of high-power electrical appliances, which is easy to cause short circuit. Especially in summer, when the air conditioner is turned on in the dormitory, using the hair dryer at the same time may easily lead to tripping, and may also cause the circuit of the whole building to burn out.

Category III: Electric heaters, electric blankets, electric kettles and other heating appliances. Students use fast heating, electric cups, electric kettles, etc. For convenience, they are lucky about the existing fire hazards and always feel that the fire is far away from them. It is this fluky psychology that causes the widespread use of illegal electrical appliances in student apartments at present. However, the furniture in students' dormitory is mostly wood products, which are easy to burn and have great fire hazards.

These high-power electrical appliances are not allowed to be used, which may cause fire and other safety accidents, so students should strictly abide by the rules and regulations of school electricity use.