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This post was last edited by yuchenchf on 2017-7-26 at 13:36. A reminder to all workers: take care to protect your own safety while working, so as to ensure zero accidents. 1. Persons who are not electrical professionals shall not carry out electrical installation and maintenance, nor shall they connect power sources without authorization. 2. Electrical professionals must not leave any potential hazards after installing, maintaining, or repairing electrical equipment. 3. The use of uninspected and unqualified insulating tools is strictly prohibited. 4. Do not pull the power cord of portable electrical appliances; a power extension cord shall have only one connection point, and the exposed metal wires are not allowed. 5. For hand-held power tools and mobile electrical equipment, the \"one machine, one switch, one protection\" system must be implemented, and they should be regularly calibrated to ensure their sensitivity and reliability. 6. For movable electrical equipment such as electric fans and welding machines, the switch should be turned off first before moving them. 7. No one shall remove electrical interlock devices, protective devices, or signaling devices without permission. 8. When cleaning electrical equipment, the power must be turned off first; it is not allowed to wash it with water, nor to clean it using acidic or alkaline solutions. 9. The length of the power cable for a welding machine should generally not exceed 5 meters. 10. The height of the exposed wires (sliding contact wires) used should not be less than 3.5 meters; if it is lower than 3.5 meters, such wires must be covered with safety nets, along with clear safety signs or signal lights. 11. It is strictly prohibited to use power tools such as electric drills, hand grinders, and hand saws outdoors in rainy weather. When using a hand lamp, it must be powered by a safe voltage of 36V or less; in humid environments, hand lamps with insulated handles should be used. 12. When using electrical appliances in daily office work, the plugs and sockets/outlets must be connected properly in accordance with regulations. The protective ground terminal of sockets/outlets must always be reliably connected to the protective wire separately, and they should be placed in locations where splashing water is unlikely to occur. It is strictly prohibited to connect the protective earth electrode to the working neutral wire inside the plug (socket). When plugging or unplugging the plug, human hands must not touch the electrodes, and no pulling force should be applied to the power cord. Power supply to electrical equipment should be cut off promptly when it is suspended or stopped in use, when a fault occurs, or in the event of a sudden power outage; appropriate technical measures should be taken if necessary. When the insulation or casing of an electrical device is damaged, which may lead to human contact with live parts, it should be stopped from use immediately, and repaired or replaced as soon as possible. 13. Important office equipment such as computers, printers, copiers, fax machines, and scanners should be properly taken care of and used responsibly; before leaving work, it is necessary to ensure that all such devices are turned off. When the appliance is not in use for an extended period of time (such as during holidays), the plug should also be removed to prevent the switch from failing and to avoid damage to the appliance due to continuous power supply, which could lead to fires. 14. Methods for quickly disconnecting from the power source: a When someone is found to be electrocuted, the power supply should be turned off immediately. When far from the circuit breaker, insulated pliers or a axe with a dry wooden handle can be used to cut off the power supply. b Rescue personnel must not pull the victim by hand or use metal rods or wet objects to rescue them; instead, insulated tools should be used to disconnect the electrocuted person from the power source. When rescuing someone in a capacitor or cable circuit, the power supply must be turned off to discharge it before attempting to assist the person who has been electrocuted. ⑭ In the event of electric shock at high voltage, appropriate first-aid measures should be taken according to the specific circumstances, while ensuring the safety of the rescuers. ⑮ When rescuing a person who has been electrocuted, proper protection must be taken to prevent further injury to that person.