The total current of household electrical equipment cannot exceed the maximum rated current of electric energy meter and power cord.
Step 2 install a protector
Double-function protectors for leakage and overvoltage must be installed on the outlet side of household electric meters, so as to automatically trip and cut off the power supply when household appliances leak, people get an electric shock, and the power supply voltage is too high or too low to protect personal and equipment safety.
3, electrical equipment shell to reliable zero.
The grounding jack of the three-core socket must be reliably connected with the zero (ground) line, and the grounding pile head of the three-core plug must be reliably connected with the iron shell of the electrical equipment. To prevent electrical equipment insulation breakdown or live shell from causing electric shock.
4, the product quality is good.
All power supply equipment (wires, switches, leakage current and overvoltage protectors, plugs and sockets) and household appliances must be produced by manufacturers designated by the state and passed the technical quality inspection. Don't buy fake products with "three certificates" for cheap.
5, installation wiring meets the requirements.
The power socket should be installed at a place 1.6 meters above the ground to prevent electric shock from leaving the power supply and ensure the safety of children. Don't connect the electricity yesterday, unplug it immediately after use.
6. It is forbidden to use substitutes.
Can't use copper wire, aluminum wire, iron wire instead of fuse; Signal transmission lines cannot be used instead of power lines; Medical leucorrhea cannot be used instead of insulating black belt; Cann't use enameled wire instead of electric heating wire as a substitute for electric mattress.
7, found abnormal, power off immediately.
In the use of electrical equipment, it is found that the voltage rises abnormally, or the electrical equipment has abnormal noise, smell, temperature, smoke and fire. The power supply must be disconnected immediately, and then inspection or fire fighting and rescue must be carried out.
8. Develop good habits.
When people walk, the switch is off. Touch the shell with the back of your hand. Maintenance and inspection should be closed, and there should be obvious disconnection points.
Second, the safety precautions:
1, know the main power switch, and learn to turn off the main power in an emergency.
2. Don't touch and test the inside of the power socket with your hands or conductive objects (such as wire, nails, pins and other metal products).
3. Don't touch the appliance with wet hands or wipe it with wet cloth.
4, electrical appliances should be unplugged after use; Don't pull the wire when plugging and unplugging the power plug to prevent the insulation of the wire from being damaged and causing electric shock; The insulation layer of the wire is peeling off, so it is necessary to replace the wire in time or wrap it with insulating tape.
5, found someone get an electric shock to try to turn off the power in time; Or use dry wooden sticks and other things to separate the electric shock victim from the charged electrical appliances, and don't save people directly by hand; Younger students should ask adults for help in this situation, and don't handle it by themselves to prevent electric shock.
6. Don't disassemble or install the power cord, socket and plug at will. Even if it is as simple as installing a light bulb, it should be turned off first and carried out under the guidance of parents.