Difference between flame retardant cable and fire resistant cable?

I. The difference between flame retardant cable and fire-resistant cable? The general public is very easy to confuse the concept of flame retardant cables and fire-resistant cables, in time, flame retardant cables have a lot of more suitable for use in the chemical industry, such as low halogen and low-smoke flame retardant and so on. However, in general, fire-resistant cable is able to replace the fire-resistant cable, but the fire-resistant cable can not replace the fire-resistant cable. The main thing is: 1, the principle of the difference between fire-resistant cable and flame retardant cable is not the same principle. With the halogen cable flame retardant principle is mainly by halogen flame retardant effect, no halogen cable flame retardant principle is to rely on the precipitation of water to reduce the temperature to extinguish the fire. Fire-resistant cable is to rely on the fire-resistant layer of mica material in the fire-resistant and heat-resistant properties, so to ensure that the cable in the event of a fire is also normal work. 2, the structure and material differences between the fire-resistant cable structure and materials and fire-retardant cable is not the same. The basic structure of fire-retardant cable is: (1) the insulation layer is made of fire-retardant materials. (2) Sheath and outer jacket are made of flame retardant materials. (3) Flame-retardant materials are used for wrapping and filling. The fire-resistant cable is usually between the conductor and the insulation layer plus 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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