The flame-retardant cable refers to the cable that is burned under the specified test conditions. After the test fire source is removed, the flame spreads only within the limited range, and the residual flame or residual burn can be self-extinguished within a limited time. Its fundamental characteristic is that it may be burnt out in the event of a fire and cannot operate, but it can prevent the spread of fire. In layman's terms, if the cable is in a fire, it can limit the combustion to a local extent, without spreading, and keep other equipment to avoid further losses.
1. Structural characteristics of the flame retardant cable
The structure of the flame-retardant cable is basically the same as that of the ordinary cable, except that the insulating layer, the sheath, the outer sheath and the auxiliary material are all or partially made of a flame-retardant material.
2. Classification of flame retardant cables
According to the different flame retardant materials of cables, flame retardant cables are divided into two categories: halogen-containing flame-retardant cables and halogen-free low-smoke flame-retardant cables.