With the development of wire and cable production technology, more and more cables with different functions come to our market, which also causes a problem. We can't understand the difference between different types of cables, which leads to the failure to correctly select cables according to the requirements. Flame retardant cables and fire-resistant cables are the best examples. Correct understanding of the difference between flame-retardant and fire-resistant cables is the key to the correct use of these two kinds of cables. The following Asia cable is for you to learn about these two kinds of cables, so that you can buy them more easily~

Fire resistant cable

Fire resistance means that it can keep running for a certain period of time in the case of flame combustion, that is, it can keep the integrity of the circuit. This type of cable has power supply capacity for a certain period of time in the flame.

Flame retardant cable

Flame retardant cable refers to the cable that the sample is burned under the specified test conditions, the flame spread is only within a limited range after removing the test fire source, and the residual flame or residual ignition can be extinguished within a limited time.

Main differences between fire resistant cable and flame retardant cable

1. Fire resistant cable can maintain normal power supply for a period of time in case of fire, but flame retardant cable does not have this characteristic.

2. The principle of fire-resistant cable is different from that of flame-retardant cable. The flame retardant principle of halogen-containing cable depends on the flame retardant effect of halogen, and the flame retardant principle of halogen-free cable depends on the temperature reduction of the effluent to extinguish the fire. Fire resistant cable depends on the fire-resistant and heat-resistant properties of mica material in the fire-resistant layer to ensure the normal operation of the cable in case of fire.

3. Flame retardant cable is suitable for places with special requirements for flame retardant, smoke density, toxicity index, etc. it is widely used in nuclear power plants, subway stations, telephone exchanges and computer control centers, high-rise buildings, hotels, radio and television stations, important military facilities, oil platforms, etc., as well as places with concentrated personnel and low air density. Fire resistant cable is suitable for lines that need to keep normal operation in case of fire, such as fire protection system of industrial and civil buildings, emergency lighting system, life-saving system, alarm and important monitoring circuit, etc.

To sum up, in our daily life, flame-retardant cables are more used for home decoration, while fire-resistant cables are more used in engineering sites or fire-fighting equipment. In addition, we should pay attention to the distinction between flame-retardant and fire-resistant cables as well as ordinary and halogen-free cables, so we must make clear whether halogen-free cables are used when purchasing.

When the fire occurs, the spreading speed is slow, the smoke concentration is low, the visibility is high, the harmful gas release is small, it is convenient for personnel to evacuate, the corrosiveness of combustion gas is small, and the damage to instruments and equipment is avoided. The characteristics of low halogen and halogen-free greatly improve the aging resistance, ultraviolet resistance and other radiation resistance of cable materials, so we must understand the differences of various cables Select the cable that is really suitable, so that we can play and use the performance of the cable more effectively!