Regulations on safe electricity use in dormitory
Dormitory is an important place for students' daily life and study, and ensuring the safety of dormitory is the top priority of school management. To ensure the safety of electricity consumption in the dormitory, we should start from everyone in the dormitory. We have the obligation to learn how to use electricity and remind people in the same dormitory how to use electricity safely.
1, don't use high-power electrical appliances, dormitory voltage is generally low, so you can't use high-power electrical appliances. If they are used, it is likely to trip or burn the transformer. Therefore, it is best not to use it. High-power electrical appliances include: induction cooker, water heater, air conditioner, rice cooker, electric cup, etc.
2. Don't change the wiring at will. Changing, installing or removing power cords, plugs and sockets at will in the dormitory or digging hard objects on the wall may cause accidents such as electric shock or short circuit of wires.
3. Cultivate awareness of safe use of electricity. Don't touch electrical appliances with wet hands, and don't wipe them with wet cloth. The power plug-in board should not be placed at the bedside, but at a well-ventilated and safe place such as a desk, and should not be in contact with metal objects such as bedsteads. No flammable materials should be placed around it, and it is forbidden to connect multiple plugs. When using the desk lamp, don't put flammable materials beside the lamp, and don't use the bedside lamp.
4, to understand the common sense of electrical appliances, you need to know the main switch of power supply, and learn how to cut off the main power supply in the dormitory in an emergency.
Safety knowledge of electricity consumption in dormitory
1. What are the factors that cause the fire in the electric circuit?
Fires in electrical circuits are usually caused by short circuit, overload, poor contact (loose connector, local overheating caused by oxidation of conductor contact surface) and electric leakage (damage of conductor insulation layer, sparks caused by contact with metal pipe).
Second, why are electric appliances easy to cause fires?
Electric heating appliances generally have the characteristics of high power and high temperature. If you forget to cut off the power supply after use; When in use, the power was suddenly cut off, and I forgot to cut off the power supply. After the call, I was left unattended. The timing thermostat controller fails, the temperature indicator fails, the items in the heating container are dried, and the electric heater sticks to flammable materials; Poor contact between switch and contact; Improper use or maintenance will cause fire.
Third, why not allow students' dormitories to use rapid heating and electric stoves?
Fast heating and improper use of electric furnace are very dangerous, which may lead to fire and electric shock, resulting in serious consequences. The rapid heating electric furnace is composed of nickel-chromium wire, furnace plate, aluminum tube and other elements, and there is no safety protection device such as constant temperature and timing. If used and placed improperly, it is easy to ignite the surrounding combustible materials and cause a fire. At the same time, the wires installed in the student dormitory can't bear the load of these high-power electrical appliances. The use of high-power electrical appliances such as fast heating and electric furnace in dormitory is easy to cause wire overload, heat the wire or ammeter coil, and even cause fire. Moreover, due to the structural defects of the electric furnace itself, such as the electric furnace wire arching and contacting the bottom of the pot, and the leakage caused by humidity, the heating is fast and the electric furnace is not safe in use. Therefore, the school expressly stipulates that it is strictly forbidden to use other high-power electrical appliances such as rapid heating and electric stoves in student dormitories.
4. Why can't we connect the wires in the dormitory without permission?
It is very dangerous to connect wires in the dormitory without permission, which may easily lead to fire and electric shock. Installing and laying wires is a job that requires professional knowledge and skills. The state expressly stipulates that the installation of wires and electrical equipment must be operated by professional electricians. For the convenience of use, some students connect the wires privately and wind them around the bedstead, which seriously threatens the life safety of themselves and others, and resolutely forbid it. At present, the mosquito net frames in the dormitory of our school are all made of iron, which is a conductor, and the insulator on the surface of the wire is colloid, which is easy to age and damage. Friction inevitably occurs in use, which accelerates the damage of wires, and easily leads to short circuit and leakage of wires, resulting in fire and electric shock accidents. Therefore, for the safety of you and others, it is absolutely not allowed to connect the wires without permission.
5. Why is it forbidden to use all kinds of inferior charging items such as charging lamps, inferior chargers and charging power supplies?
At present, all kinds of electronic products bring great convenience to students' life and study, and students often use them in the dormitory. Most of these electronic products use chargers and charging power supplies. However, driven by interests, some lawless people produce and sell inferior chargers, charging lamps and charging power supplies, and some of our classmates, because of their own discrimination and economic ability, bought and used these inferior chargers, charging lamps and charging power supplies. Are these inferior chargers, charging lamps and charging power supplies one after another? Time bomb? Buried around us, it always threatens our lives and property.
6. Why are bedside lamps forbidden in student dormitories? Why can't light bulbs be put in mosquito nets?
This is because the bedside lamp mainly uses the bulb as the light source. After the bulb is electrified, the surface temperature of the bulb is relatively high. The higher the power of the bulb, the higher the surface temperature of the bulb. According to the surface temperature measurement of incandescent light bulb, it is 40 watts, 56 ~ 63 degrees; 60 watts, 137 ~ 180 degrees; 100W, 140 ~ 2 16 degrees; 150 watts, 148 ~ 228 degrees; 200 watts, 154 ~ 250 degrees. Therefore, the light bulb has become a dangerous fire source. Ordinary paper will burn at about 130 degrees, so bedside lamps are strictly prohibited in student dormitories. Mosquito nets are flammable, and the ignition point is 200 degrees, and the surface temperature of the bulb is relatively high (an incandescent lamp with power 100 watt, the surface temperature under general heat dissipation 170 degrees? 2 16 degrees), if the light bulb is installed in the mosquito net, not only the surface temperature of the light bulb is not easy to emit, but also the light bulb is easy to burn the mosquito net when it is close to the mosquito net.
Seven, the use of power outlets need to pay attention to safety.
There are multi-purpose triple sockets and quadruple sockets for power outlets, which are convenient to use and popular among students. However, when using this multi-purpose socket, we should pay attention to the bearing capacity of the power socket and not overload it to ensure safety. The rated voltage (V) and current (I) are marked on the power socket, indicating the maximum voltage and current that the power socket can bear. The product of voltage and current is electric power in watts (W). If several electrical appliances are plugged in when using the multi-connection power socket, you should carefully calculate whether the power of the inserted electrical appliances exceeds the rated power allowed by the multi-connection power socket. If it is lower than the rated power of the socket, it will be used safely. On the contrary, the total power of the electrical appliances used is greater than the rated power of the multi-connection socket, which is unsafe. Because when the current passes through the metal conductor, the metal conductor will produce a certain amount of heat, which is called the current thermal effect. When the current passes through the conductor, the greater the thermal effect, the greater the calorific value. When the current of various electrical appliances passes through multiple sockets, the greater the current, the higher the thermal effect. If it exceeds the rated value, it will burn the wires and sockets, and in serious cases, it will cause a fire, so remember to use the power socket. Small horse-drawn cart? .
Eight, why not just increase the safety line?
The fuse is made of low melting point alloy materials such as lead, tin and antimony. When the current exceeds the rated value, it will fuse immediately and cut off the power supply in time. In this way, the safety of electrical circuits and equipment can be protected in case of short circuit or overload. There are various specifications of fuses, and fuses are generally selected according to the safe current carrying capacity of electrical circuits. If the fuse is enlarged at will, or replaced by iron wire, the fuse will not blow quickly when there is a short circuit or overload, and the purpose of protecting electrical equipment and circuits will not be achieved.
9. Why can't doors and windows be easily opened when the room is on fire?