Low-Smoke Halogen-Free Flame-Retardant Cable

Low-smoke halogen-free flame-retardant cables are environmentally friendly cables with flame resistance and low hazard characteristics. Their insulation and sheathing are typically made from halogen-free (i.e., free of fluorine, chlorine, bromine, etc.) polyolefin materials, using specialized formulations to achieve flame-retardant performance. When burned, these cables do not release toxic hydrogen halide gases and produce only small amounts of low-toxicity, low-corrosiveness smoke, maintaining high visibility and reducing casualties caused by toxic gases and thick smoke during fires. Their flame-retardant performance (classified as Class A, B, or C) effectively slows the spread of fire and meets strict fire safety requirements. The conductors are usually copper cores, with cross-linked polyethylene commonly used for insulation. The rated operating temperature is typically 90 °C, and the short-circuit withstand temperature can reach 250 °C. These cables are suitable for subways, airports, hospitals, large shopping centers, high-rise buildings, and other densely populated areas or locations with high demands for environmental safety, making them a key cable type in modern electrical systems where both safety and sustainability are essential.