Ever since the discovery of the phenomenon of fire, human beings have been taking measures to protect themselves from its harmful effects. Cables in communications applications are no exception - not only can they catch fire, but they also produce harmful fumes and gases when they catch fire. Therefore, for cables, people have also developed preventive measures to ensure their safety - this is the origin of low-smoke halogen-free cables. Low-smoke halogen-free (LSZH) refers to the outer sheath material of the cable. Most commercially available cable assemblies use an outer sheath made of polyvinyl chloride (PVC). This flexible and durable material is ideal for most applications, but one of its drawbacks is the way it burns. Once PVC catches fire, it will burn freely for a long time, and it continues to emit toxic gases throughout the process. In contrast, low-smoke halogen-free cable sheathing is made of thermoplastic or thermosetting compounds that have limited smoke generation, do not contain halogens, and do not produce harmful gases even when exposed to high-temperature sources.

When a fire breaks out in a building, the standard PVC cable placed behind the wall or ceiling is in danger of burning for a long time, and the flame will not only spread from room to room, but also produce toxic gases. While in most building fires, occupants are able to escape from these gases by evacuating, it is not uncommon for a fire to leave the building.

Low-smoke halogen-free cable sheathing is becoming increasingly popular in military, aerospace, rail, and maritime applications where personnel are close to cable components and are not easily ventilated in the event of fire. Cost-effective, low-smoke, halogen-free sheathing is often (and sometimes necessary) used in poorly ventilated areas such as aircraft, military vehicles, submarines, and ships. In addition, low-smoke halogen-free sheathing is also widely used in railway systems with high pressure or track signal lines in underground tunnels. By using low-smoke halogen-free sheathing in such areas, the potential for toxic gas buildup in the event of a cable fire can be reduced.

In the event of a fire, low-smoke halogen-free cable sheathing helps protect personnel from flames, smoke, and harmful gases emitted by burning cables. A wide range of low-smoke halogen-free cable assemblies are available specifically for use in areas where toxic fumes are likely to cause damage to sensitive equipment and in enclosed areas with high air quality requirements.

Qingdao Tianxing Cable Co., Ltd. focuses on the production of customized wire and cable manufacturers, main: fire wire and cable, power cable, control cable and other products, exported to more than 40 countries and regions around the world, the annual production capacity of 1 billion yuan. 6000 square meters of storage, standing hundreds of millions of inventory, order demand for rapid distribution and delivery, large prices more favorable. Hotline: 16678668098