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What is halogen-free low-smoke flame retardant wire?

Published by Author: Joey Wan August 02,2022

Low-smoke halogen-free wire refers to the halogen substance of the insulating layer material of the wire. In the case of combustion, it does not release halogen-containing gas and has a low smoke concentration. The reference standard is JB/T 10491-2004, and the models are WDZ-BYJ, WDZ-RYJ And so on, there are a large number of domestic manufacturers with production capacity.

 

 

Features:

 

  • Low smoke halogen free wire
  • Low smoke: when burning, there is only light water mist, and the visual distance is more than 60 meters
  • Non-toxic: does not contain any toxic substances
  • Flame retardant: The wire achieves flame retardant effect through the irradiation cross-linking process
  • Long life: anti-aging, lifespan can reach more than 100 years
  • High temperature resistance: the maximum working temperature can reach 150 degrees
  • Environmental standards: in line with EU and Japanese environmental standards

PVC cable,XLPE cable,wire,Power cable

 

Application:

 

It is suitable for places with rated voltage of 450/750V and below, with halogen-free, low smoke, flame retardant requirements and high safety and environmental protection requirements. Such as high-rise buildings, stations, subways, airports, hospitals, large libraries, gymnasiums, villas, family houses, hotels, hospitals, office buildings, schools, shopping malls and other densely populated places.

 

Advantages of Irradiation Cross-Linked Low Smoke Halogen Free Flame Retardant Wires

 

The traditional PVC (polyvinyl chloride) wire, in the event of a fire, the PVC mixture is easily decomposed after being heated, and a large amount of highly toxic and corrosive HCL (hydrogen chloride) gas is released, and a large amount of highly toxic smoke is generated, causing major lives. and property damage, and bring great difficulties to rescue work (such as the South Korean subway fire). In order to avoid and reduce the secondary damage caused by fire and fire as much as possible, after more than ten years of research, it has been found that changing the outer material and process used in the product can effectively solve the problem.

 

The main feature of halogen-free low-smoke flame-retardant wire and cable is that all materials do not contain halogen, and the amount of smoke released during combustion is very small. The toxicity of halogenated cables in fire is terrible. If the toxicity of the gas concentration that can cause death in 30 minutes is determined as 1, then the toxicity index of polyvinyl chloride is 15.01, and the toxicity index of halogen-free polymer is 0.79. During the fire, the strong and diffuse smoke made the victims confused, thus prolonging the time spent in the fire. According to relevant information, when the light transmittance is 70%, the ability of human naked vision to distinguish objects is only about 5m. The light transmittance of the smoke emitted by the burning of PVC is less than 15%, that is, the naked visual distance of a person in this thick smoke is only about 2m. Another feature of the thick smoke is that it spreads very rapidly with the hot air, and the speed can reach more than 20m/min.

To this end, the world's advanced countries have introduced halogen-free low-smoke flame retardant materials to replace the same PVC, and formulated relevant standards. Europe, the United States, and Japan have comprehensively promoted them in civilian wires.

 

It solves the shortcomings of PVC decoration wires very well. It is halogen-free, low-smoke, flame-retardant and has excellent short-circuit load capacity. It is a wise choice for decoration. We believe that with the improvement of people's living conditions, health, safety, More and more attention is paid to environmental protection, and the day when new high-performance environmentally friendly cloth wires will completely replace traditional PVC wires is just around the corner.

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