In recent years, with the increasing incidence of spontaneous combustion of vehicles, the issues of fire protection and fire safety of vehicles have attracted significant attention. Automotive cable bundles, as a potential source of ignition, require particularly responsible protection. The performance of corrugated pipes, one of the most common means of protecting cable bundles, directly affects the level of safety of the entire vehicle. In response, KEYUACE, based on market needs and accumulated experience in flame retardant corrugated pipe technology, introduced a series of flame retardant corrugated pipes for automotive cable bundles.
The KEYUACE series of fire-retardant corrugated pipes for cable bundles retains the excellent fire-retardant properties of already proven products: many models have a fire-retardant class V0, are self-extinguishing after removing the fire source, are environmentally friendly and have no unpleasant odor. In addition, the products have high mechanical strength under load, flexibility and resistance to distortion, wear resistance and scratch resistance, resistance to acids, alkalis, inorganic salts and lubricating oils, and aging resistance. They fully comply with all the requirements specified in Annex D of the Electric Bus Safety Specification (QC/T 29106).
Corrugated tubes for cable bundles are widely used in automobile engine compartments and front/rear protective structures. In the engine compartment, where high temperatures, vibrations and possible fluid leaks create a high-temperature, high-humidity environment, cable protection requirements are particularly stringent - making corrugated tubing an essential solution for protecting cable bundles. During daily vehicle operation on water obstacles or muddy roads, the cables in the front and rear protective structures are exposed to low-temperature and wet areas, where corrugated tubes provide protection against moisture, water and scratches.
In the rapidly developing field of electric vehicles, high-voltage cable bundles are usually protected by orange corrugated pipes. On average, high-voltage cable bundles of a small-class electric car require 8–10 meters of corrugated pipes, and for buses with several battery modules the consumption is several times higher than this figure. For example, for Zhuhai Yinlong's 50-seater electric bus, the total number of corrugated pipes used, including ordinary cable bundle tubes and orange corrugated tubes for electric vehicles, exceeds 100 meters. In addition, corrugated tubes for cable bundles are widely used in mechanical engineering, automated instruments, electric motors and other fields, which promises them very broad prospects in the market.
