Full Article: PDF
Scientific Object Identifier: http://s-o-i.org/1.1/TAS-11-103-118
DOI: https://dx.doi.org/10.15863/TAS.2021.11.103.118
Language: English
Citation: Craciun, N. (2021). Effects of the thermal risk factors on the static strength of the strap components. ISJ Theoretical & Applied Science, 11 (103), 976-980. Soi: http://s-o-i.org/1.1/TAS-11-103-118 Doi: https://dx.doi.org/10.15863/TAS.2021.11.103.118 |
Pages: 976-980
Published: 30.11.2021
Abstract: Used during firefighting activities, due to level differences, personal fall protection systems are often exposed to the action of thermal risk factors existing at work. Being made mostly of textile materials, personal protective equipment against falling from a height can be damaged by the action of thermal risk factors and broken under the action of the main risk factor (fall), thus leading to serious and even fatal accidents. The lack of a test method to follow the way in which thermal risk factors act on the mechanical properties of system components could create a false impression of ensuring adequate protection in such environments. Considering that the textile elements may be in the form of a strap or rope and that the elements in the strap are more likely to be damaged, the study consisted in the exposure to fire and contact heat of different types of strap made of polyamide, polyester and polypropylene. The analysis of the results showed a significant decrease in the mechanical strength of the strap samples exposed to fire, compared to those exposed to contact heat. Thus, it can be concluded that the applied methods could be used to test the textile components of personal fall protection systems intended for use in environments where there is occasional contact with flame or contact with hot surfaces.
Key words: textile, thermal risk factors, mechanical strength.
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