Every accident happened in an accidental moment, and every accident was shocking and terrible. We must profoundly learn from the experience of accidents. What are the security risks when learning to understand the operation of lifting operations? How to avoid it?

Lifting and hoisting work has always been a dangerous job. There are uncertainties at the job site, such as outdoor work, cross work, night work, and high-altitude work. Different operations have different risks:

1. Outdoor work

Due to weather changes and other factors, there may be winds, thunderstorms, heavy fog and other weather continued construction, affecting the thinking and judgment of the lifting workers, the command signal is not clear, etc., causing lifting injuries.

2. Cross work

If the precautionary measures are not taken in time, and the cross-workers are not in agreement, it is easy to cause object blows and lifting injuries.

3. Night construction

Due to insufficient lighting and fatigue of lifting workers, it is easy to cause lifting injuries.

4. Working at heights

If the safety protection measures are not in place, it is prone to accidents such as falling from high places and hitting objects.

In order to prevent the risk of lifting and hoisting work, the following small series gives you a guide to the safe operation requirements of lifting and hoisting operations:

1. Lifting scheme:

Lifting and hoisting should prepare special construction plans and review and approve them. For example, the super-scale lifting and hoisting special construction plan should organize expert argumentation according to regulations.

2. Load limit:

The hoisting machinery should be equipped with load limiting devices and travel limit devices, and it is sensitive and reliable. Lifting rod assembly should meet the design requirements, the acceptance procedure should be performed after assembly, and the acceptance form should be signed by the responsible person.

3. The rigging meets the requirements:

The specifications of the wire rope shall comply with the requirements of the crane product specification, and the wear, broken wire, deformation and corrosion shall be within the allowable range of the specification.

Hooks, reels, and pulleys shall be worn within the limits of the specification.

Hooks, reels and pulleys shall be fitted with wire rope anti-off devices.

Cable wind ropes and ground anchors for lifting and pulling rods shall meet the design requirements.

The safety factor of the rigging should meet the requirements of the specification.

The sling specifications should be matched and the mechanical properties should meet the design requirements.

4. The connection meets the requirements:

When the rigging is braided, the length of the braided part shall comply with the requirements of the specification.

When using rope clamp connection, the specification, quantity and rope clamp spacing of the rope clamp should meet the requirements of the specification.

5. Crane requirements:

The ground bearing capacity of the crane's walking operation should meet the requirements of the product specification. the safety distance between the crane and the overhead line should meet the requirements of the specification.

6. Personnel requirements:

The crane driver should hold the certificate and the documents should be consistent with the operation model.

Lifting and hoisting operations should be set up with full-time signal commanders and staff.

Safety technology should be submitted as required before the operation, and a written record should be formed.

7. Lifting process:

When multiple cranes are lifting a component at the same time, the load of a single crane should meet the requirements of the special construction plan.

The sling system should meet the requirements of the special construction plan.

When the crane is working, the personnel are not allowed to stay under the boom, and the lifting weight cannot pass directly from the person.

Crane spreaders are prohibited from carrying passengers.

Hanging cages should be used for lifting loose objects.

8. High-level work:

Lifting and hoisting operations shall be set up in accordance with the regulations, and the installation shall comply with the requirements of the specification.

Lifting and hoisting operations shall be set up according to the regulations. The strength and structure of the ladder shall meet the requirements of the code.

9. Component stacking load

Within the allowable range of the carrying capacity of the working surface, the height of the stacking should be within the specified allowable range, and the large-scale component stacking should have measures to ensure stability.

10. Job warning zone

The operation warning zone shall be set up according to the regulations, and the guard zone shall be guarded by special personnel.