Accident causes, prevention and treatment measures

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Accident causes, prevention and treatment measures of crane

accident causes, prevention and treatment measures of crane:

1 The causes of crane accidents mainly include human factors and equipment factors. Among them, human factors are mainly due to the irrational behavior of managers or users due to psychological reasons such as taking chances, saving trouble and inversion, while material factors are mainly due to the failure of equipment to design, manufacture, install, repair and maintain as required, especially the failure to inspect as required and the operation with "disease", thus laying hidden safety hazards

the major causes of crane accidents are:

a. violation of safety operation regulations, such as overloading or unconfirmed weight of lifting objects, oblique pulling and oblique lifting, people standing under the lifting weight, unreliable lifting weight binding, unreliable hook and hook, and unqualified operators

b. the equipment safety protection device is not installed or fails. For example, the lifting height limiter, lifting weight limiter, torque limiter, hook anti decoupling device, operation limit limiter, etc. are not installed or invalid, the equipment grounding or neutral connection is unreliable, and the leakage protection is unreliable, etc

c. the inspection and inspection were not carried out as required. If the regular inspection system (pre shift inspection, weekly inspection, monthly inspection, etc.) is not established and implemented, and the table tension machine is not reported to the supervision and inspection organization as required, the functional characteristics: Acceptance inspection and regular inspection are carried out, resulting in the "disease" of the equipment

d. there is no safety supervisor or warning board during maintenance. For example, the operation of adjacent equipment is not monitored, and the ground power supply switch is not hung with warning signs

e. operators such as use and maintenance do not wear protective labor protection products as required

f. the tower crane is not installed or disassembled according to the specified procedures

g. the truck crane fails to ensure the safe distance between the equipment and the lifted objects and the wires in the working environment

2. In view of various causes of crane accidents, the user unit should closely cooperate with the manufacturing, installation and maintenance units, as well as the hoisting machinery supervision department, supervision and inspection institutions, strengthen management, implement various inspection systems, eliminate potential safety hazards, and minimize the possibility of accidents. The user unit must at least do the following work:

a Strengthen safety ideological work, cultivate safety awareness from safety staff to operation, maintenance and inspection personnel, and consciously avoid unsafe behaviors

b. strictly implement the safety operation procedures and put an end to illegal operations

c. formulate a perfect inspection and inspection system and strictly implement it

d. train and assess operators

3. Handling of lifting injury accidents

handling of lifting injury accidents can generally be divided into five stages: accident site handling, accident details investigation, accident cause analysis, accident handling and settlement. The unit where the accident is located should pay attention to:

1) After the occurrence of a lifting injury accident, the unit must do everything possible to organize the rescue of the injured and state property, take effective measures to stop the spread of the accident, and carefully protect the scene of the accident. All objects that may be related to the accident, traces with insufficient hardness, status, etc., must not be artificially damaged. If some objects on the scene need to be moved in order to rescue the injured, they must be marked, photographed and recorded in detail

2). At the same time of handling the site, the unit shall immediately supply the accident to the source enterprise, and report it to the local safety supervision department and relevant competent departments by, telegram or other rapid methods

3). Once the cause and analysis of the accident are clear, serious treatment should be carried out in accordance with relevant laws and regulations:

(1) The accidents of relevant leaders should be investigated, including:

a. the rules and regulations and safety operation procedures are not perfect, so that the employees are not lucky to follow

b. the employees were not trained in safety technology, and they were ordered to work without obtaining the certificate

c. the lifting equipment is not subject to regular maintenance, has not passed the safety inspection, or is still allowed to be used if the equipment has defects

6. According to the purpose of the experiment, it can be divided into: performance test fatigue experiment, influence coefficient fatigue experiment, control fatigue experiment, selection fatigue experiment, verification fatigue experiment, etc.

d. knowing that the equipment is operating in an unsafe environment without taking protective measures

(2). Investigate the accidents of the perpetrators or relevant personnel, including:

A. illegal command, illegal operation, dereliction of duty

b. failure to report emergencies and take emergency measures

c. disobey management, violate labor discipline, leave duty without permission or lift equipment without authorization

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