Ключевое слово: «aramid fibres»

The article presents an analytical review of the problems of ensuring the safety of personnel in the fuel and energy complex during the operation of electrical installations in the Far North. Based on an analysis of current scientific and technical literature, regulatory documentation, and the results of field tests, the effectiveness of using heat-resistant PPE is investigated. The unique physical and chemical properties of meta- and para-aramid fibres are considered, which allow materials to retain their elasticity and strength at temperatures down to -60 °C, preventing brittle fracture under the influence of an arc shock wave. The thermodynamics of multi-layer clothing packages are described in detail: it is shown how air layers and specialised aramid insulation increase the overall protection rating (System Arc Rating) and dampen the energy of an explosion. It is justified that the use of synthetic aramid structures is an unrivalled engineering solution that guarantees stable protective characteristics throughout the entire life cycle of the product.