To perform limited space operations, the following safety requirements must be observed:
1. There must be no obstacles inside or outside the entrance and exit of the limited space to ensure that it is unimpeded and easy for personnel to enter and rescue and evacuate.
2. The work site should be equipped with a certain number of life-saving facilities and fire-fighting equipment that meet the requirements.
3. During the operation, it should be monitored regularly. If the abnormality is found, the operation will be stopped immediately, and the personnel will be evacuated. After the on-site treatment and sampling and analysis, the operation can be resumed.
4. Guarantee the safety of electricity for limited space operation
(1) The limited space lighting voltage should be less than or equal to 36V, and the operating voltage should be less than or equal to 12V in wet containers and small containers.
(2) When using a hand-held power tool that exceeds the safe voltage or performing an electric welding operation, a leakage protector should be provided. In a wet container, the operator should stand on the insulation board while ensuring that the metal container is grounded reliably.
5. Do not use hoisting machines, cranes, etc. to transport workers into limited space.
6. Do not carry items that are not related to the operation. The tools and materials to be carried must be registered, and materials, tools and other items must not be thrown during the operation.
7. There are multiple types of work, multi-layer cross-operation should take measures to avoid damage between each other.
8. The workplace should have sufficient lighting.
9. To enter a limited space, you need to carry out operations such as ascending and moving fires. You must go through the operation permit procedures in accordance with the relevant regulations, and handle the relevant work permits according to the regulations.
10. Rotating operations should be taken in limited space operations with high difficulty, high labor intensity and long time.
11. After the operation is completed, the unit and the operating unit of the limited space jointly check the inside and outside of the limited space, and the limited space can be closed after confirming that there is no problem.
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