Safety electricity knowledge - solutions - Huaqiang Electronic Network

MOS power IC full range

SMD aluminum electrolytic capacitor

Probe current voltage pin 420*4450 head diameter 5.0 over current current and voltage pin

Photocoupler

1. When it is necessary to install electrical equipment such as electrical equipment and electric lights, it should be installed by an electrician. In the event of failure of the electrical equipment, it must be repaired by an electrician.

2. Conscientiously abide by the rules and regulations on safe use of electricity, prohibit privately pulling the power grid, and use electric fishing and mouse trapping in private electric furnaces.

3. The electric light wire should not be too long, and the lamp head should be no less than 2 meters from the ground. The lamp cap should be fixed in one place, do not pull it to avoid damage to the wire or the lamp cap.

4. Electrical equipment such as electric motors, blowers, electric fans, amplifiers, etc., shall be grounded as specified. Installation and repair and grounding wire shall be carried out by an electrician.

5. The fuse (fuse) should meet the specifications and should be selected according to the capacity (wattage) of the electrical equipment. When installing the fuse, first pull the brake, then cut off the power supply, and then install the required fuse. If the fuse is often blown, the electrician should find out the cause and eliminate the fault.

6. The broadcasting line and telephone line should be erected with the power line. When the broadcast line and telephone line pass under the power line, the vertical distance from the power line should not be less than 1.25 meters. If the broadcast line and the power line collide, the broadcast horn will make strange noises and even smoke. At this point, you should quickly turn off the switch on the radio line or use a wooden handle axe, shovel, hoe, etc. to quickly cut off the broadcast line, and do not approach the live line, ask the electrician to handle the fault in time. It must be noted that the ground wire must not be used by hand. Failure to do so may result in an electric shock.

7. Do not touch the wires of the clothes to prevent the wires from touching the wires. Don't even wear clothes and hang things on the wires. In addition, it is necessary to prevent vines, melons, trees, etc. from contacting the wires.

8. Whether it is a group or an individual, when it is necessary to pull the temporary wire, it must be approved by the power supply bureau and installed by the electrician. It is forbidden to pull the temporary wire. Temporary wires should be rubber insulated wire, not less than 2.5 meters from the ground, and must be managed by a special person.

9. It is forbidden to install electric lights, etc. by means of “one line, one place”.

10. Educate children not to play with electrical equipment such as wires, lamp holders, switches, motors, etc. Do not play near the motor and transformers, do not climb the pole or shake the pole to pull the cable, do not fly kites near the wires, in case the kite falls on the wires, To be handled by an electrician, do not yank and pull it yourself, so as to avoid power failure and electric shock caused by the wires. Do not use stones or slingshots to wire or bird on porcelain bottles to prevent injury, break wires or damage porcelain bottles.

11. Find the wires that fall on the ground, leave 10 meters away, and don't pick them up by hand. At the same time, try to look after the floor wire and ask the electrician to handle it in case someone approaches the electric shock.

12. When moving electrical equipment, be sure to pull the power off first, then move the equipment, never move with power. After moving the electrical equipment of the electrical equipment casing with a metal casing to a new location, first install the grounding wire and check the equipment to confirm that the equipment has no problem before starting to use.

13. Do not dig the soil near the pole and the pull wire, and do not put the gun on the pole near the pole and the pull wire to prevent the ball from collapsing or breaking. Do not tie the animals to poles or wires. The poles are tilted, the wires are touched, and even a broken bar is broken.

14. Do not stand the derrick under the wire. When repairing a house or cutting a tree, it is necessary to pull the power to the power cord that may be encountered. When cutting down trees, cut the branches first, then break the tree branches and pour the trunks to the side without wires.

15. When the vessel passes under the pole, lower the mast in advance. When cars and tractors are loaded, don't oversize them.

16. The buried power line should be buried no less than 1 meter deep. When leveling the land and tractors and rice transplanters in the field, special care should be taken not to break the ground.

17. When installing electrical equipment, it should meet the installation requirements. Do not use cracked or broken switches, lamp caps and broken wires. The wire connectors should be secure and wrapped in insulating tape. When it is found that there is damage, it is necessary to find an electrician to repair it in time.

18. Don't build a house under the wire, pile up firewood and so on. Do not place flammable materials such as oil, cotton, and wood chips near the lamp switch, fuse box, and wires to prevent electrical fire. If you find the smell of burnt rubber and plastic, you should immediately turn off the power and shut down the power to find out the cause, and then close it. If there is a fire, you should quickly pull the fire to stop the fire. If you can't power off, apply the cover soil and cover the sand. Way to save the fire. Do not use water to save fire to prevent electric shock.

19. During lightning storms, do not approach the grounding wire of the high-voltage pole, tower, lightning rod and the grounding body to avoid electric shock due to the step voltage.