What are the basic requirements for electrical work?

The basic requirements for electrical work are as follows:

1. Those who have not passed the safety training and safety assessment are prohibited from taking up their posts.

2. The electrician must hold an electrical work permit.

3. Don't go to work after drinking, and don't drink in class.

4. You must wear labor protection articles before going on duty, or you are not allowed to go on duty.

5. When repairing electrical equipment, you must refer to other relevant technical regulations. If you don't know the precautions in the equipment manual, you are not allowed to operate privately.

6. It is forbidden to hang clothes and various items on the wires.

7. When working high above the ground, you must fasten your seat belt.

8. The correct use of electrical tools, all insulation tools, should be properly kept, it is strictly prohibited to use, and should be regularly checked and calibrated.

9. When there is safe voltage higher than human body, it is forbidden to carry out maintenance by live working.

10. Electrical overhaul, maintenance and dangerous work are strictly prohibited to work alone.

1 1. Before electrical equipment maintenance, the person in charge of the maintenance project must hold a safety meeting before maintenance.

12. It is forbidden to cut off two or more wires at the same time with a vice or other tools without determining whether the wires are charged.

13. It is forbidden to move the equipment higher than the human safe voltage with electricity.

14. It is forbidden to hold lighting equipment higher than safe voltage.

15. Hand-held power tools must use leakage protectors. Before use, you need to press the protector test button to check whether it is available normally.

16. Portable lamp transformer must be used for lighting in humid environment or metal box, and it is not allowed to be higher than the safe voltage of human body by 36V.

17. Every electrician must master the first aid method of electric shock. If someone gets an electric shock, cut off the power immediately and carry out rescue according to the first aid plan for electric shock.

18. Except electrical personnel, the personnel on duty in the transformer room have the right to order them to leave the scene to prevent accidents.

19. Electricians should always think that the line is in a charged state when conducting accident patrol inspection. Even if the line does lose power, it should be considered that the line may send electricity at any time.

20. The wires removed at work should be handled well, and the exposed threads that are not used immediately should be bandaged to prevent electric shock.

2 1. If faults or hidden dangers are found during the patrol inspection, the producer shall be immediately notified, and then temporary safety measures such as total or partial power failure shall be taken to avoid the accident from expanding.

22. It is forbidden to open the secondary side of current transformer, and it is forbidden to short-circuit and boost the secondary side of voltage transformer.

23. When the capacitor equipment is out of power, the residual electricity of the capacitor must be released before it can work.

24. Electrical operation sequence: In case of power failure, the air switch should be turned off first, and then the isolating switch should be turned off, which is contrary to the above operation sequence when sending power.

25. It is forbidden to close the disconnector with electricity. Before closing the isolating switch, it should be electrified and put in place quickly and decisively. After the operation, check whether the three-phase contact is good (or whether the three-phase is disconnected).

26. It is forbidden to open the shell of electrical equipment for live operation.

27. On-site construction with high and low voltage equipment and lines should be installed and erected according to the construction design and relevant electrical safety technical regulations.

28. Every electrician must be familiar with the whole process of backward cutting of standby power supply for zinc pot.

29. The correct use of fire-fighting equipment, electrical appliances should immediately cut off the power supply, and then use dry powder, 12 165438, carbon dioxide and other fire extinguishers or dry sand to extinguish the fire, depending on the device, equipment and the nature of the fire. Foam extinguisher is strictly prohibited.

30. When closing the large-capacity open or ME, please close the cupboard door first, and it is forbidden to manually close the ME with electricity.

3 1. After using the multimeter, turn off the power supply when the voltage reaches the highest, and form the habit of preventing the multimeter from burning.

32. It is forbidden to place irrelevant sundries in the power distribution cabinet and cable trench.

33. The optical fiber is not allowed to be excessively bent to prevent breakage.

34. No one is allowed to pull the DP thread in production to prevent parking.

35. When replacing the DP head, stop the equipment and PLC power supply. If there are special circumstances, use electricity instead, and be careful not to answer the electricity.

36. In production, when replacing the contactor in the cabinet, it is necessary to check whether the power supply line can be disconnected, and it is forbidden to replace it with electricity to prevent danger.

37. In production, due to the maintenance of the air valve, the pressure roller can not be pressed down, which will cause the steel strip to run off or break.

38. It is not allowed to use voltage sensitive components to weld the circuit board. Unplug the power plug after the soldering iron is heated or the welding head is grounded before welding.

39. Before disassembling the electronic board, you must first discharge the static electricity of the human body.

40. When using the electric welding machine, it is not allowed to use the production line frame as the ground wire to prevent the PLC from burning out. Violators will stop it immediately.

4 1. When using electric welding machine, insulating gloves must be worn, and it is forbidden to hold the welding handle in one hand and the ground wire in the other to prevent accidental electric shock.

42. When welding equipment with bearings and bushings, it is forbidden to make the welding machine current pass through the bearings and bushings, causing damage.

43. When hot work is carried out in the transformer room, the application procedures for hot work should be fulfilled, and it is strictly forbidden to use hot work without going through the formalities.

44. Don't fasten the buttons or indicator lights of the operation console during production. Be careful if you need it urgently to prevent the screwdriver from stopping when it is connected to the box.

45. If you need to replace the button in production, check whether the power supply side is jumpers, and whether it will cause various phenomena such as parking or emergency stop after disassembly. If you are not sure, you can temporarily change the control line to the standby button, and then have a chance to resume.

46. When replacing the encoder, it is necessary to turn off the power supply (rectifier and 24V}) or connect the power cord, and mark the encoder wire when disassembling. When disassembling the encoder, it is forbidden to knock hard. When removing the fan cover, be careful to prevent the encoder cable from breaking. After assembling the fan, it is necessary to check whether the encoder wire in the fan cover is wound on the fan blade.

47. When the electrical equipment is burnt down, check the reason before replacing it to prevent the accident from happening again.

48. When replacing the contactor, the rated coil voltage must be one to one. If the current is not the same model, it can be slightly larger.

49. The inverter and other equipment are strictly prohibited to plug in and plug in, and the running time without electricity shall not exceed 5 minutes.

50. It is forbidden to plug and unplug electronic boards such as frequency converters with electricity to prevent burns.

5 1. When replacing the frequency converter or internal board, the rectifier power supply must be stopped for more than 5 minutes before running, and it can only be powered on after careful inspection to confirm that the wiring is correct, so as to prevent the equipment from being burnt out by wrong line number marking.

52. The newly-built motor in the motor maintenance department must be checked whether the motor is in good condition and fastened before use.

53. When connecting the power supply of electrical equipment, first look at the rated voltage of the electrical equipment, select the appropriate air switch, confirm that the air switch is off, and check whether there is any danger of electric shock next to it before operating.

54. When manually operating the air valve or oil valve, you must check whether it will cause harm to people or equipment to prevent accidents.

55. When replacing MCC drawers, it is necessary to check whether the drawers are the same, so as to prevent PLC from burning by mistake.

56. Installation or replacement of electrical equipment must meet the prescribed standards.

57. It is forbidden to touch the rotating motor shaft by hand.

58. It is forbidden to swing the charged high-power cable by hand.

59. The burnt-out motor should be disassembled for confirmation, so as to find out the reason and prevent it from happening again.

60. The thermal relay tripping, should find out the reason and processing before reset.

6 1. During the maintenance operation, it is necessary to cut off the power and check the electricity first, leave people to guard or hang warning signs, install temporary shelter or protective cover on the live parts that may be touched, and then check the electricity, discharge and seal the land. When checking electricity, the equipment must be in good condition.

62. After the maintenance, carefully clean up the site, check whether there is a lack of handling tools, check whether the fief line is removed, whether the short wiring and temporary line are removed, and remove obstacles, etc. , notify the staff to evacuate the scene, remove the warning signs, and send electricity in the order of sending electricity.

63. After the work is completed, you must put away your tools, clean up the workplace and do a good job in hygiene.