Knowledge of fire prevention, electricity prevention and fire safety 1. fire prevention
First, fire prevention.
Fire is an important disaster that threatens human safety. In primary and secondary schools, fire is also an important factor threatening our safety. Therefore, in daily life, we should strengthen the awareness of fire prevention and do the following:
1. Control the fire source
(1) Open flames, such as fire for production and life, sparks from chimneys, sparks generated by collision and friction, burning electric heating wires and iron blocks, and various household electric heaters and gas heaters developed in recent years.
(2) Electric sparks, such as batteries and electrostatic sparks generated by electrical equipment such as electrical switches and motors, can cause flammable gases and loose and slender flammable substances to catch fire.
(3) Lightning strikes fire. Instantaneous high voltage discharge can cause the combustion of any combustible substance.
2. There are two main indirect fire sources:
(1) heating spontaneous combustion. This is due to the effect of external heat source, which heats combustible materials to the temperature of fire and causes fire. The situation of fever and spontaneous combustion is more complicated.
(2) Spontaneous combustion and fire. This means that in the case of an open flame and no external heat source, the substance itself heats up and burns itself.
Knowledge of fire prevention, electricity prevention and fire safety II. Electric power prevention
Methods to prevent electric shock mainly include:
(1) Primary and middle school students with reading ability should master some knowledge about safe electricity use through relevant reading materials.
(2) Always check the plugs of household appliances such as electric lights, lamp holders and radios.
If the switch or wire is damaged or leaks, once there is a problem, stop using it immediately and ask an electrician to replace or repair it before using it.
(3) Don't overload electricity. Overloading electricity is easy to overheat wires, damage insulation layers and cause electric shock accidents.
(4) Prevent charged objects from hurting people, such as using wet towels, wet hands and iron to contact the power supply (switch, plug, damaged insulation part of electrical appliances), resulting in electric shock accidents.
(5) Buy electrical appliances with quality assurance and use them according to the instructions.
(6) All electrical appliances in direct contact with the human body, such as electric blankets, hair dryers, hair clippers, etc., must be carefully checked. In addition to meeting the quality standards, special attention should be paid to whether there is leakage.
(7) Don't step on the roadside or pick up the fallen wires.
(8) In addition to household appliances, it is also necessary to prevent lightning from shocking people. Close the doors and windows and the TV in rainy days. When it thunders, don't stand at the top of the mountain or under tall buildings, chimneys, trees, telephone poles, etc.
Knowledge of fire prevention, electricity prevention and fire safety. Drowning prevention
(1) Know your health before swimming and listen to the doctor's advice on whether you can take part in swimming.
(2) Choose a good swimming place and get to know the bathing place. Such as whether there are life-saving conditions, whether the bathing place is sanitary, whether the water surface is flat, whether there are reefs, undercurrents, mud traps, weeds, water depth, etc.
(3) Exercise before going into the water. If the water temperature is too low, you should wash your body with water in shallow water and go swimming after getting used to the water temperature.
(4) Don't worry? Zamengzi? Snorkeling, don't fight, lest you drown by drinking water.
(5) correctly estimate your own mercury, don't be bravado.
(6) Don't swim in rapids and whirlpools, and don't swim after drinking.
(7) In the process of swimming, if you suddenly feel dizzy, sick, flustered, short of breath or limb cramps, you should immediately go ashore or call for help.
(8) Don't panic when the calf or leg cramps. You can kick or jump hard, or massage yourself and pull cramps.