Fire-resistant cables, currently widely used fire-resistant cables mainly include two categories: UL series flame-retardant cables and flame-retardant, low-smoke, halogen-free cables. Among imported products, the main sources are the Americas and Europe. Due to the incompatibility of fire-resistant cable standards between the Americas and Europe, there are significant differences in fire-resistant approaches. Therefore, both the client and the design institute are in a passive state when selecting products, each with their own rationale. Often, the choice is made based on the actual financial situation.