In modern construction, electrical power, rail transportation, and communication engineering, cables are crucial energy and signal transmission media, and their safety performance is increasingly emphasized. Especially in high-risk environments where fires are frequent, traditional cable materials often pose serious safety hazards due to flammability and the emission of toxic smoke. Therefore, fire-resistant LSZH cables, which have excellent flame retardant properties and are environmentally friendly, have emerged and become a hot material in the current market.
Fire-resistant LSZH cable refers to cables that not only have basic fire resistance but also significantly reduce smoke and toxic gas emissions when exposed to fire. Their outer sheath and insulation materials are usually made of special polyolefin or silicone composite materials, and do not contain halogen elements such as chlorine, fluorine, bromine, nor heavy metals like lead or cadmium.
These materials can maintain structural integrity in flames and prolong the circuit's power-on time, providing valuable time for personnel evacuation and firefighting rescue. At the same time, fire-resistant LSZH cables release almost no corrosive gases during combustion, minimizing equipment damage and personal injury.
In high temperatures or open flames, fire-resistant LSZH cables can maintain the integrity of electrical circuits for a certain period, meeting IEC 60331 and other international standards, ensuring that critical equipment remains powered.
Thick smoke generated in a fire is the main cause of suffocation and difficult escape. This material produces minimal smoke when burning, with low smoke density, which helps improve visibility and aids in quick evacuation.
Traditional PVC cables release toxic and corrosive gases like hydrogen chloride when burning. Fire-resistant LSZH cable does not contain halogen elements and does not produce toxic acidic gases, making it more compliant with green environmental regulations and building material safety standards.
Besides fire-resistance and environmental benefits, fire-resistant LSZH cables also have excellent mechanical impact resistance, wear resistance, aging resistance, and outstanding insulation properties, suitable for various harsh environments.
Rail transportation: In dense and enclosed environments such as subways, light rail, and high-speed railways, using these cables can significantly enhance the fire safety level of the systems.
Data centers and communication equipment: Ensures that the network and power supply can still operate at the initial stage of a fire, supporting the stable operation of critical data and emergency systems.
High-rise buildings and hospitals: Deploying these cables in key passages such as elevator shafts and main power trunks helps improve overall fire safety coefficients.
Petrochemical industry and airports: In places with extremely high safety and environmental requirements, fire-resistant LSZH cables offer both flame-retardant and environmental protection advantages, making them an ideal choice.
