Company News
Why should the spreader meet the six factor of safety?
Release time：2021-06-30
What is the "factor of safety"? Safety factor is the standard reflecting the safety degree of engineering structure design method. To determine the safety factor, various uncertainties should be considered, as well as the economic benefits of the design project and the consequences of structural damage.
The so-called line has rules, applied to the lifting industry is no exception. According to the current standard, the domestic use and production of the sphanger must strictly comply with [national standard JB T8521-2007], its core is what we say: six times the safety factor!
Taking lifting sling as an example, the lifting sling with the same width and the same weft density will be more easily torn due to insufficient yarn use. In addition, because the belt is too thin, the wear resistance of the product will be reduced, making the belt more likely to be worn. These two phenomena will affect the safety of hoisting!
Recent years, domestic sling industry rapid development, technical standard is not perfect, however, many domestic enterprises production at random, without authorization, change the safety factor, the frequency of vicious competition and inferior products in the market, the most common problem is the product of safety coefficient reduced hoisting security is a big hidden trouble, use is not in conformity with the national standard of lifting operation, Not only easy to cause safety accidents, and will therefore bear the corresponding legal responsibility.
The so-called line has rules, applied to the lifting industry is no exception. According to the current standard, the domestic use and production of the sphanger must strictly comply with [national standard JB T8521-2007], its core is what we say: six times the safety factor!
Taking lifting sling as an example, the lifting sling with the same width and the same weft density will be more easily torn due to insufficient yarn use. In addition, because the belt is too thin, the wear resistance of the product will be reduced, making the belt more likely to be worn. These two phenomena will affect the safety of hoisting!
Of course, the safety requirements in the actual operation can not be ignored. When hoisting, in the process of accelerating the movement of the object, the tension of the spanger is greater than the gravity of the object itself.
Recent years, domestic sling industry rapid development, technical standard is not perfect, however, many domestic enterprises production at random, without authorization, change the safety factor, the frequency of vicious competition and inferior products in the market, the most common problem is the product of safety coefficient reduced hoisting security is a big hidden trouble, use is not in conformity with the national standard of lifting operation, Not only easy to cause safety accidents, and will therefore bear the corresponding legal responsibility.
