290HC Mast Section The importance of tower crane safety inspection management system to prevent safety accidents
1. Tower crane product quality is unqualified
290HC Mast Section：
http://www.towercranesupply.com/product/290hc-mast-section-liebherr-tower-crane
The production quality of the tower crane directly determines the service life of the tower crane. In order to expand the market share, some enterprises try their best to reduce the product cost, do not design according to the national standards and design specifications, reduce the product performance, cut corners, or even "repair the old and make use of the waste", resulting in the congenital deficiency of the product and the frequent occurrence of various faults and accidents in use.
2. Tower crane installation and disassembly are not professional
In recent years, with the rapid increase of the demand for tower cranes, many large and small leasing companies have emerged in the market, including the large-scale enterprise's tower crane leasing company, the tower crane production enterprise's participation in leasing, and even some self-employed people buy the equipment eliminated by the large-scale enterprise for leasing. The installation teams of these rental units differ greatly in personnel allocation, technical management and installation tools and equipment. The quality of installation personnel is generally low, and some even migrant workers without formal training carry out installation and demolition operations. No targeted installation and removal plan has been formulated, and installation and removal work has not been carried out for the installation personnel without safety technical disclosure, resulting in frequent accidents.
290HC Mast Section：
http://www.towercranesupply.com/product/290hc-mast-section-liebherr-tower-crane
3. tower crane safety after commissioning acceptance is not in place.
After installation, ignoring installation quality acceptance is the potential cause of the accident. At present, there are many leasing companies in the market. In addition to a complete set of management system for some original large-scale state-owned enterprise leasing companies, some small leasing companies in the market only rely on a few people for leasing. The equipment management mainly relies on the "family" management of the property owner himself, these people Most of the cultural quality is low, some even know little about the lifting moment, the maximum lifting capacity and the safety devices that the tower crane should be equipped with. Therefore, the commissioning after the installation of the tower crane has not been paid attention to, and it is put into use without the commissioning acceptance and the application for the installation quality inspection, resulting in frequent accidents. For example, a QTZ31.5 tower crane was recently installed at a construction site in Changle City of our province. After installation, the load limiter was not connected, the moment limit was not adjusted as required, and it was put into use, and it was overloaded for a long time. As a result, the main limb of the standard section of the tower crane suffered fatigue cracking due to long-term overload, which eventually resulted in a serious accident of tower body breaking.
4. Illegal operation
290HC Mast Section：
http://www.towercranesupply.com/product/290hc-mast-section-liebherr-tower-crane
The operator's operation mistakes are often found in the construction site: the operation is still in the strong wind, and the heavy materials are hoisted.
