Electricity safety and matters needing attention

Thunderstorms have been frequent recently. Thunderstorm weather, because the air is humid, if the electrical circuit is not repaired in time, there will be leakage, short circuit and other phenomena, then electricity safety will come. The following is my knowledge and precautions about electricity safety for your reference.

Matters needing attention in safe use of electricity in thunderstorm weather laboratory

1. It is forbidden to cross wires in the aisle.

2. No uncovered cups shall be used in the laboratory.

3. When using the indoor power supply, first confirm the voltage used by the instrument (220V or 380V), and whether the plug is plugged in three times or twice. If you plug it in three times, you can't use the method of removing the ground wire and plugging it into the two-hole socket.

4. Don't touch the charged instrument with wet hands, and don't wipe the charged equipment with wet towels.

5. Avoid any exposed charged body.

6. The metal shell of all instruments and equipment shall be grounded or grounded as required.

7. When wiring new equipment and maintaining the original equipment, please cut off the power supply. After the connection or maintenance is completed, turn on the power supply and use the electric pen to detect the electrification of the equipment in time.

8. When installing equipment, there should be a reasonable distance between equipment and equipment and between equipment and wall, otherwise people may scratch the line when walking, which may easily lead to electric shock.

9. When connecting, disassembling or moving equipment as a whole, it is forbidden to work with electricity.

10. After using the instruments and equipment, the experimenters should turn off the main power supply in time.

1 1. In case of thunderstorm, stop the live experiment operation to avoid lightning strike.

12. Before the thunderstorm, if the power line is found to be aging, you can ask professionals to check the wires of the equipment and replace the aging lines. In addition, we should pay attention to check whether the leakage protection switch and other electrical appliances are working normally and whether the zero line or grounding line has fallen off.

13. In addition to unplugging the power cord of electrical appliances, network signal lines such as broadband network cables and fixed telephone lines should also be unplugged. Because lightning can be conducted through wires, network cables and telephone lines, the electrical equipment connected with it will be damaged by lightning strike, which may cause fire in serious cases.

Precautions for safe use of electricity in rainy days

First, pay attention to the safe use of electricity

1. Check whether the indoor leakage protection device is normal. Don't rush to recover after the leakage protection device trips or the fuse is blown. Before resuming power transmission, carefully check indoor wiring and electrical equipment.

2. In case of continuous rain and indoor humidity, the hands and feet should be kept dry when touching electrical appliances, and shoes made of insulating materials (such as dry plastic shoes and leather shoes) should be worn.

3. Before you need to move electrical equipment, please unplug the power plug to ensure that it is in a power-off state.

Second, stay away from power supply facilities.

1. Found that the outdoor wire was broken and landed, the telephone pole was tilted or landed, and the branches were overwhelmed; Found that the line and transformer discharge; If you find that the power supply facilities are seriously soaked in water, please stay away and report to the power department in time.

2. Power supply facilities that are soaked in water and cause power failure should not be sent immediately after the water recedes, and should be carefully checked to ensure safety before power transmission can be resumed.

3. Try not to use electrical equipment in thunderstorm weather.

Third, electric shock therapy.