Effective ways to prevent crane accidents

First of all, we analyze the causes of crane accidents, which mainly include two aspects: human factors and equipment factors. The human factor is mainly due to the psychological reasons such as fluke, trouble-saving and rebelliousness of the manager or user, resulting in irrationality. Behavioral and physical factors are mainly due to the failure of the equipment to be designed, manufactured, installed, repaired and maintained as required, especially the failure to perform inspections as required, and operation with “sickness”, thereby laying potential safety hazards.

The main causes of crane accidents that account for a large proportion are:

1. Violation of safe operation regulations, such as overloading or unconfirmed weight of lifting objects, oblique-stayed cranes, cranes to lift off-station people, unreliable lifting and strapping, unreliable hooks and unqualified operators, etc.;
2. The equipment safety protection device is not installed or is invalid. For example, the lifting height limiter, lifting weight limiter, torque limiter, hook anti-decoupling device, operation limit limiter, etc. are not installed or fail, the grounding or zero connection of the equipment is unreliable, and the leakage protection is unreliable;
3. Inspections and inspections were not carried out as required. If the regular inspection system (pre-shift inspection, weekly inspection and monthly inspection, etc.) is not established and implemented, and the inspection agency fails to report to the supervision and inspection agency for acceptance inspection and regular inspection as required, the equipment will be “sick”;
4. There is no safety guardian or warning sign when the maintenance is stopped. If the operation of adjacent equipment is not monitored, the ground power switch is not hung with warning signs, etc.;
5. Personnel working for maintenance, etc. fail to wear protective labor insurance products according to regulations;
6. The installation or disassembly of the tower crane is not carried out in accordance with the prescribed procedures;
7. During the operation of the truck crane, the safe distance between the equipment and lifting objects and the wires in the working environment cannot be guaranteed.

In view of the various causes of crane accidents, the user unit should closely cooperate with the manufacturing, installation and maintenance units, the lifting machinery supervision department, and the supervision and inspection agency to strengthen management, implement various inspection systems, eliminate safety hazards, and reduce the possibility of accidents. The user must do at least the following tasks:

1. Effectively strengthen safety ideological work, from safety workers to operation, maintenance and inspection personnel must cultivate safety awareness and consciously avoid unsafe behaviors;
2. Strictly implement safety operating procedures to prevent illegal operations;
3. Develop a complete inspection and inspection system and strictly implement it;
4. Train and evaluate the operating personnel.