What are the safety requirements for working at high places with live electricity? Under what circumstances is it prohibited to work with live electricity?

Any work performed at height where the reference plane of the fall height is above 2m (including 2m) and there is a possibility of falling is called work at height.

1. When working at heights, you should pay attention to the following requirements:

1) All personnel involved in working at heights must pass a medical examination before they can work at heights. Persons with mental illness, epilepsy, high blood pressure, and severe visual and hearing impairments are not allowed to work at heights.

2) Personnel involved in high-altitude erection operations (such as erecting workers, tower crane installation and dismantling workers, etc.) must undergo special training. After passing the examination, they must hold the "Special Operation Safety Operation Certificate" issued by the labor safety supervision department. , before you can start working.

3) All personnel involved in high-altitude operations should receive safety education before starting work and pass the examination.

4) Personnel participating in high-altitude operations should wear safety helmets and seat belts as required by regulations, and their clothing meets the requirements for high-altitude operations. They should wear soft-soled shoes, not slip-on shoes with spikes, and should Earnestly implement the "Ten Don'ts": 1. No illegal work; 2. No drinking before and during work; 3. No resting in unsafe positions; 4. No throwing things down at will; 5. Severe lack of sleep. No working at height is allowed; 6. Betting and grudges are not allowed; 7. No tampering with machinery, fire-fighting and dangerous supplies; 8. Safety supplies and tools are not allowed to be used in violation of regulations; 9. Chasing and fighting in high-altitude working areas is not allowed; 10. Do not dismantle or damage safety supplies, appliances and facilities at will.

5) Tools carried by workers at heights should be bagged and carefully kept. Larger tools should be put away and secure. Materials in the construction area should be placed in a safe place that does not affect traffic. When necessary, Be tied up.

6) Construction workers must adhere to the cleaning system before getting off work every day to ensure that the site is clean of materials after work is completed.

7) Fences and warning signs should be set up in dangerous areas of hoisting construction to prohibit pedestrians from passing and staying under hoisted objects.

8) Sufficient lighting must be provided for working at heights at night.

9) Guodian Corporation’s regulations on standardization of safety facilities must be conscientiously implemented and kept in sync with the construction progress. The best safety features are of no use if they can't keep up with the schedule.

10) Try to avoid grade-level intersection operations. Corresponding safety protection and isolation measures must be taken for grade-level intersection operations. Simultaneous construction is strictly prohibited without measures.

11) Safety technical briefings should be conducted before working at heights. Defects and hidden dangers in safety facilities found during operations must be addressed promptly. Operations must be stopped when personal safety is endangered.

12) When hoisting construction at high places, pay close attention to and grasp seasonal climate changes. In case of heavy rain, strong winds of level 6 and above, heavy fog and other severe weather, open-air operations should be stopped and hoisting components should be prepared. , machinery and other stable work.

13) Take precautions against heatstroke and cooling in midsummer, and prevent freezing, cold and slippage in winter.

14) Reliable protective measures must be taken when working at heights. For example, equipment and facilities such as rigging, cages, hanging baskets, and platforms used for suspended operations at high altitudes must undergo technical appraisal or inspection before use. Construction must not be carried out without reliable protective measures. Especially in specific construction projects where it is difficult to take protective measures, conditions must be created to ensure the reliability of safety protective measures. In special construction environments where there is no place to hang safety belts, it is even more necessary to find ways to make protective equipment have somewhere to hang and make it safe and reliable.

15) Materials used in high-altitude operations must be stacked stably and cannot be placed on the edge or near the entrance. Walkways, channel boards and climbing equipment during operations must be cleaned at all times. The dismantled materials, remaining materials and waste materials must be cleaned up and transported away in time, and must not be randomly littered or discarded downwards. Any materials that may fall within each construction site must be removed or secured first to prevent them from falling and injuring people.

16) Implement an on-site shift handover system. Workers on the front shift must clearly explain relevant matters to those on the next shift to prevent accidents caused by blind work.

17) Seriously overcome administrative violations.

2. Protective measures

Our department’s construction projects related to high-altitude operations include: high-slope anchor shot blasting construction, tailwater outlet concrete pouring and mold installation, tower crane hoisting, and mixing buildings Hoisting, etc., the following protections should be paid attention to during construction:

1. "Three Treasures" protection

1) Anyone entering the construction site must wear a safety helmet as standard.

2) When working at height or suspended in the air, safety belts that comply with standards and operating requirements must be worn.

3) A safety net must be installed below the high-altitude working point. For construction without external scaffolding as protection, a fixed safety net must be installed on the first floor or 4m above the ground.

2. Protection of reserved openings

For larger reserved openings, a protective fence should be installed at the edge of the opening, with a height of 1.2m, and the reserved opening should be sealed with a large net Strict; Generally, for reserved openings that are 1m square or less than 1m in diameter, steel welded steel mesh can be used to fix the reserved openings. The side length of the mesh should be 8cm. You can also cover the opening with wooden squares or use safety signs. The cover is tightly closed.

3. "Edge" protection

During the excavation of the tailwater outlet foundation pit and the erection of the unloading platform, protective measures must be taken on the edge side, and a fence or erection of Safety net.

4. Protection against climbing operations

During the concrete construction of the tailrace outlet, as the dam body rises, there must be climbing operations. Climbing operations are prone to danger, so during the entire construction During the construction period, all types of personnel must walk in the prescribed passages, and climbing using booms or scaffolding rods and construction equipment is not allowed. When climbing, no matter what type and form of ladder is used, it should be inspected and accepted in advance according to relevant standards.

5. Protection of suspended operations

When performing suspended operations such as component hoisting, steel bar binding and concrete pouring, cable suspension scaffolding boards, hanging plates, hanging cages, platforms and other equipment are used and tools should be qualified products that have been tested and identified. The main suspended work in this project is the tying of steel bars. When tying steel bars, be careful not to stand on or climb up or down the steel frame.

6. Protection of cross operations

High-altitude operations performed at different levels on the construction site, such as setting up formwork, removing formwork, and dismantling scaffolding, are called cross operations. The upper and lower three-dimensional cross operations are extremely difficult. Falling objects can easily cause injuries. Therefore, between different levels, there must first be a lateral safe isolation distance in the front, rear, left and right directions. This distance should be greater than the possible fall radius. If this safe isolation distance cannot be achieved, a protective layer that can prevent falling objects from harming people below should be installed, that is, the main tension safety net. The width of the flat net should be selected according to the load height. All rope sections or nodes on the safety net must be fixed.

7. Operation warning and supervision

Safety warning signs must be set up in the working range at heights and the damage range caused by falling objects from heights, and designated personnel should be assigned to carry out safety supervision to prevent irrelevant persons from entering. Scope of work and injuries caused by falling objects