Aramid viscose fabric EBT value protection grade evaluation method

Abstract

The invention provides an aramid viscose fabric EBT value protection grade evaluation method, which comprises the following steps of constructing an aramid viscose fabric protection performance EBT value evaluation index system, selecting aramid viscose fabrics with different blending ratios and gram weights, testing performance parameters of related influence factors of the fabrics according to the evaluation index system, and testing the EBT values of the fabrics, determining the correlation degree between an EBT value and each influence factor by using SPSS software correlation analysis, establishing an EBT value protection level evaluation method, determining the value range of each influence factor under different protection levels of the EBT value, and verifying the evaluation method. The method has the beneficial effects that the EBT value protection grade is directly evaluated by utilizing the basic performance of the fabric, the existing equipment in a laboratory is reasonably utilized, the problems of high cost and long period of direct EBT testing are avoided, and the method is simple, clear, convenient to operate and capable of conveniently, directly and quickly judging the EBT value protection grade of the aramid viscose fabric.

Description

technical field [0001] The present invention relates to aramid viscose fabric E BT The evaluation method of value protection level technical field, especially relate to a kind of aramid fiber viscose fabric E BT Evaluation method of value protection level. Background technique [0002] The arc forms a great destructive force through high heat, shock waves, and strong ultraviolet rays, endangering the safety of social public equipment and the safety of workers. According to statistics, arc deflagration accidents occur 5 to 10 times a day on average, and the instantaneous high-intensity heat released by the arc is more than 4 times that of severe deflagration accidents. Take the severe arc accident in Germany in 1998 as an example. Since most workers did not wear proper face protection devices and anti-arc clothing, the high temperature, shock wave and toxic gas associated with the arc can instantly burn the clothing worn by the staff. Received extensive burns or even died,...

AI Technical Summary

Problems solved by technology

However, there are no professional testing standards and testing institutions in China, and it is impossible to quickly and accurately judge the protective performance of arc-proof fabrics.

In order to solve the problems of high cost of direct evaluation of the arc protection performance of arc protection clothing and long test period, it is necessary to explore the influence of the basic physical properties of the fabric on its protective performance from a mathematical point of view, combined with the basic physical properties of the fabric, and establish an aramid fiber. Adhesive Fabric E BT The evaluation method of the value protection level is convenient, fast and scientific to evaluate the E of the arc-proof fabric mainly composed of aramid viscose fiber. BT value protection level, which provides a reference for the development of electric arc protection clothing in my country's electric power industry. Therefore, an improved technology is urgently needed to solve this problem in the existing technology.

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