What is the difference between flame retardant cables and fire resistant cables?

I. Flame-retardant cable and fire-resistant cable where the difference between 1, the principle of difference between fire-resistant cable and flame-retardant cable principle is different. Halogen cable flame retardant principle is to rely on the halogen flame retardant effect, halogen-free cable flame retardant principle is to rely on the precipitation of water to reduce the temperature to extinguish the fire. Fire-resistant cables rely on the fire-resistant layer of mica materials in the fire-resistant, heat-resistant properties, to ensure that the cable in the fire is also working properly. 2, the difference between the structure and materials of fire-resistant cables, fire-resistant cables and the structure of materials are not the same as fire-retardant cables. The basic structure of fire-retardant cable is: (1) the insulation layer is made of fire-retardant materials (2) the sheath and outer sheath are made of fire-retardant materials; (3) the wrapping and filling are made of fire-retardant materials. Fire-resistant cable is usually between the conductor and the insulation layer and then add a fire-resistant layer, so theoretically you can add a fire-resistant layer in the structure of the fire-retardant cable, the formation of both fire-retardant and fire-resistant cables, but in practice there is no need for this. Because the fire-resistant cable fire-resistant layer, usually using multi-layer mica tape directly wrapped around the wire. It can withstand a long period of combustion, even if the polymer at the applied flame is burned, but also to ensure the normal operation of the line.

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