Factors for unqualified crane inspection
2021年1月26日 日常Large-scale crane machinery and equipment, no matter what type it is, need to undergo strict inspections, but in many cases, cranes fail to pass the inspection. There are many factors, mainly the following points.
Incomplete equipment information
During the inspection of the crane, there are often differences between the crane’s product mark and the provisions of the "Crane Transport Machinery Compilation Method". According to the requirements of the crane, the working level of the crane will be divided into A1-A8 and other levels.
Unreasonable crane settings
In the crane production process, some parts are missing. According to the requirements of the crane safety regulations, the crane must have a voltage loss protection function, through the start button switch and contactor for voltage loss protection, but did not start. The tonnage on the crane is often replaced by an emergency switch when it is started. Over time, the emergency switch will wear out, which will affect the crane’s response ability in emergency situations and lead to safety accidents.
Ignore the installation of the grounding wire
The safety regulations of the crane clearly stipulate that the connection between the cab and the crane itself shall not be less than two when bolted. In the crane, workers often pay attention to whether the quality of the electrical equipment meets the specifications and ignore them. Therefore, when the crane is working, the personal safety of the driver is often damaged.
Design is not standard
In various parts of the crane, the installation of the main line contactor will be ignored by many designers, so it will not leave too much space for the installer to install the main line contactor. The contact points of all operating systems are easy to stick, in this case, it will adversely affect the crane’s work.
Incomplete equipment information
During the inspection of the crane, there are often differences between the crane’s product mark and the provisions of the "Crane Transport Machinery Compilation Method". According to the requirements of the crane, the working level of the crane will be divided into A1-A8 and other levels.
Unreasonable crane settings
In the crane production process, some parts are missing. According to the requirements of the crane safety regulations, the crane must have a voltage loss protection function, through the start button switch and contactor for voltage loss protection, but did not start. The tonnage on the crane is often replaced by an emergency switch when it is started. Over time, the emergency switch will wear out, which will affect the crane’s response ability in emergency situations and lead to safety accidents.
Ignore the installation of the grounding wire
The safety regulations of the crane clearly stipulate that the connection between the cab and the crane itself shall not be less than two when bolted. In the crane, workers often pay attention to whether the quality of the electrical equipment meets the specifications and ignore them. Therefore, when the crane is working, the personal safety of the driver is often damaged.
Design is not standard
In various parts of the crane, the installation of the main line contactor will be ignored by many designers, so it will not leave too much space for the installer to install the main line contactor. The contact points of all operating systems are easy to stick, in this case, it will adversely affect the crane’s work.
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