| abstract |
The invention belongs to the technical field of high-temperature-resistant halogen-free flame-retardant cables, and particularly relates to a high-temperature-resistant halogen-free flame-retardant cable; comprises a wire core; the outer surface of the wire core is wrapped with a first insulating layer, the first insulating layer is made of halogen-free flame-retardant TPE materials, and the first insulating layer is designed to be elastic; the outer surface of the first insulating layer is wrapped with an insulating inner pipe, and the first insulating inner pipe is made of a flame-retardant material; the insulating inner tube is designed to be elastic; the invention is mainly used for solving the problems that the tensile strength and elongation at break are greatly reduced, the existing halogen-free flame-retardant cable material still has the defects of low flame-retardant grade, low temperature-resistant grade and the like due to the addition of an organic phosphonate and/or a phosphorus-nitrogen expansion type flame-retardant system, the flame-retardant cable in the prior art has a certain flame-retardant effect, but has a single structure, and can resist high temperature only by the flame-retardant effect of the cable when a fire disaster occurs, and the high-temperature incineration cannot be resisted for a long time, so that the cable is damaged by burning. |