How to choose low smoke halogen free cable

As we all know, in the fire accidents caused by the cable, the most terrible thing is not only the burning flame but also the dense smoke and corrosive gas accompanying the burning of the cable, which will not only make it difficult for the escaped people to escape and rescue the rescuers , And it will bring different degrees of damage to other nearby equipment.

Therefore, it is very necessary to choose safe and environmentally friendly cables. Therefore, low-smoke and halogen-free cables have become a popular choice for purchasers. It may seem simple to choose cables for laymen, but it's not that simple when it comes to making a real decision.

What is a low-smoke halogen-free cable:

Generally, the materials used for cables other than the core are made of polyvinyl chloride, polyethylene, or other PE materials. When burning, not only will there be dense smoke, but the materials containing chlorine will also release hydrogen chloride gas containing toxins when heated.

Low smoke and halogen-free: It is a material used in the cable industry when manufacturing cables. Halogen is a toxic gas. Low-smoke halogen-free cable: That is to say, unlike ordinary materials containing polyvinyl chloride, polyethylene or other PE, it produces very little dense smoke when it is burned, and is produced with toxic gases that do not contain a halogen element.

Use occasions of low-smoke halogen-free cables:

Because low-smoke halogen-free cables do not generate a large amount of dense smoke and toxic or corrosive gases when burned, this kind of cable is mostly used in closed places, poorly ventilated occasions and crowded places. For example: on airplanes, high-speed rail car stations, high-rise buildings, shopping malls, tunnels, important military facilities, nuclear power plants and other occasions.

The advantages and disadvantages of low-smoke halogen-free cables:

1. Although the low-smoke and halogen-free cable is more environmentally friendly, it is more expensive than ordinary PVC and polyethylene cables based on the materials and technical costs used.

2. Low-smoke halogen-free cables will not produce halogen or other corrosive gases when burning, and there is little or no smoke, so it is easier for people to escape from the accident site when the accident occurs, and it is convenient for rescuers to rescue.

3. Because ordinary PVC and polyethylene cables have excellent conductivity, mechanical properties and some other excellent properties, low-smoke halogen-free cables cannot completely replace ordinary cables, so they are not too widely used.