EVCOME EV charging stations for better life---Top EV charging stations manufacturers & suppliers in China.
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EVCOME EV charging stations for better life---Top EV charging stations manufacturers & suppliers in China.
With the development of wire and cable production technology, more and more cables with different functions come to our market. Combustible cables and fire-resistant cables are the best examples. A correct understanding of the difference between flame-retardant and fire-resistant cables is the key to the correct use of both types of cables. The following evcome cables will popularize these two cables for you, making it easier for you to purchase~. Fire-resistant cable fire-resistant means that it can keep running for a certain period of time when the flame burns, that is, maintain the integrity of the circuit. This kind of cable has the ability to supply power for a certain period of time in the flame. Flame-retardant cables Flame-retardant cables refer to cables that burn samples under specified test conditions. After the test fire source is removed, the flame spread is only within a limited range, and the residual flame or residual flame can be extinguished by itself within a limited time. The main difference between fire-resistant cables and flame-retardant cables. 1. Fire-resistant cables can maintain normal power supply for a period of time in the event of a fire, while flame-retardant cables do not have this feature. 2. The principle of fire-resistant cables is different from that of flame-retardant cables. The flame retardant principle of halogen cables depends on the flame retardant effect of halogen, and the flame retardant principle of halogen-free cables depends on the precipitation of water and lowering the temperature to extinguish the baking. Fire-resistant cables rely on the fire and heat resistance of the mica material in the refractory layer to ensure that the cable will function properly in a fire. 3. Flame-retardant cables are suitable for places with special requirements for cable flame retardancy, smoke density, toxicity indicators, etc., and are 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., and places where people are concentrated and the air density is low. Fire-resistant cables are suitable for lines that still need to operate normally, such as industrial and civil building fire protection systems, emergency lighting systems, life-saving systems, alarm and important monitoring circuits. To sum up, in our daily life, flame-retardant cables are more used for home decoration, while fire-resistant cables are more used for engineering sites or fire-fighting equipment. In addition, we should pay attention to flame retardancy. Fire-resistant cables can be divided into ordinary cables and halogen-free cables. Therefore, when purchasing, we must find out whether there are halogen-free cables, such as Asian cable's halogen-free low-smoke flame-retardant cables, refractory copper core XLPE insulated wires, and smoke-free wires when burning. When a fire occurs, the spreading speed is slow, the smoke concentration is low, the visibility is high, the release of harmful gas is small, it is convenient for evacuation of personnel, the corrosion of combustion gas is small, and it also avoids damage to instruments and equipment. For anti-aging, anti-ultraviolet and other radiation properties, it is necessary to understand the differences of various cables, choose the truly applicable cables, and use the performance of the cables more effectively! .
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