Safety operation procedures for electrical maintenance workers
1. Electrical maintenance personnel must have basic knowledge of circuits, strictly abide by electrical safety operation procedures, and be familiar with the installation location, characteristics, electrical control principles and operation methods of equipment. Blind power transmission and commissioning are not allowed without finding out the faults and safety measures.
2. Work clothes and insulating rubber shoes must be worn during on-site maintenance, and single operation is not allowed.
3. It is forbidden to use iron saws, files and metal rulers. , and use insulating pliers and screwdrivers that do not penetrate the heart.
4. When connecting the temporary line on the power outage line, connect the line end first, and then connect the ground wire to the line. Demolition is the opposite, the line end is dismantled first, and then the ground end is dismantled.
5 gloves must be worn when closing, facing the side, and the face is not allowed to face the switch.
6. When using the instrument to test the circuit, the corresponding gear of the instrument should be adjusted first, and the test can be carried out only after it is confirmed.
7. When installing a 220-volt lighting lamp, the live wire must be connected to the central copper tongue interface of the lamp holder, the zero wire should be connected to the screw interface of the lamp holder, and the switch should be connected to the live wire to prevent electric shock.
8. The metal part of electrical equipment must be connected with neutral wire or grounded according to the provisions of grounding device.
9. When connecting the lighting step-down transformer, the high and low voltage connectors should be identified to prevent the voltage from rising due to wrong connection and cause danger.
10. When cutting off the power supply for work, the following measures must be taken:
○ 1 Power off according to the power-off sequence, and check that there is no electricity with an electroscope.
2. Take a reliable method to prevent wrong power transmission by disconnecting the switch.
○3. Hang a warning sign "No switching on when someone is operating" on the switch that is likely to send power once it is closed.
4 The conductive part is connected with the temporary short-circuit grounding wire during construction.
1 1. When checking the running motor, be careful not to let clothes get entangled on the rotating parts.
12, check the electrical equipment, you must pull down the switch, put up the warning sign "No one is allowed to switch on during work", and then check the electricity with the electroscope. After confirming that there is no electricity, you can work.
13. After electrical appliances or lines are removed, the thread ends must be wrapped with insulating tape to ensure safety.
14, portable electric tools and lighting according to the following provisions:
○ 1 The voltage of portable lamps and portable electric tools should be below 36V.
2 portable electric tools can't use 36 volts under special circumstances, and must be connected with protective ground wire or neutral wire.
Wiring of power tools, temporary lighting, electrical instruments, etc. It is forbidden to hang the wire directly on the switch or wire, and a qualified separate switch or socket must be installed.
4 when using electric tools, instruments, etc. If the power supply is interrupted, stop working or leave work, turn off the switch of electric tools.
15. Any uncharged electrical equipment shall be regarded as electrified and shall not be touched by hand. Installation and repair of any electrical appliances are prohibited from live working.
16. At the end of each maintenance, tools and parts must be counted, and all sundries on the work site must be removed to prevent accidents caused by loss and left in the equipment.
17, after the temporary work is interrupted or each shift starts to work, it is necessary to recheck the power supply and confirm that it has been disconnected, and it is not possible to operate until there is no power.
18, electrical equipment on fire, immediately cut off the power supply, and use a special fire extinguisher to put out the fire, it is forbidden to use running water or foam extinguisher to put out the fire.