Insulation Performance of Polyimide Materials Under Cable Arc

As cities grow, cables play an increasingly important role as part of the power transmission system. But as the number of cables increases, so do the safety hazards that come with them: the generation of cable arcs and even the start of fires. Cable fire blankets are necessary to protect against the initial stages of cable fires. In this paper, three different pairings are compared and analyzed by a combination of experiments and simulations. These include Kevlar-Teflon, Polyimide-Teflon, and Kevlar-Polyimide material pairings. The study illustrates the possibilities of polyimide materials for the application of cable fire blankets. The bearer of the simulation part is COMSOL software. By combining experiments and simulations with each other, the excellent fire protection properties as well as the arc resistance of polyimide are illustrated for the use of polyimide in cable protection blankets and also provide theoretical support for the application of polyimide in the field of cable protection.