Clear concept, advantages and disadvantages of flame retardant cable, halogen-free cable and fire-resistant cable

Flame retardant cable is characterized by delaying the extension of flame along the cable so that the fire will not expand. Because of its low cost, it is widely used in fireproof cables. Under the conditions of single cable or bundle laying, the flame extension can be controlled within a certain range when the cable is burning, so the major disasters caused by fire extension can be avoided, so as to improve the fire prevention level of the cable line.

The characteristics of halogen-free low smoke flame retardant cable are that it not only has good flame retardant performance, but also does not contain halogen, has low corrosivity and toxicity during combustion, and produces a very small amount of smoke, which reduces the damage to personal instruments and equipment and is conducive to timely rescue in case of fire. Although it has good flame retardancy, corrosion resistance and little smoke concentration. However, its mechanical and electrical properties are slightly worse than ordinary cables.

The fire-resistant cable can be used normally for a certain time under the condition of flame combustion, which can ensure the integrity of the line. When the fire-resistant and flame-retardant cable burns, there is less acid gas smoke, and the fire-resistant and flame-retardant performance can be greatly improved. Especially in the case of combustion, water spray and mechanical attack, the cable can still maintain the complete use of the line.