As a new type of environmentally friendly cable, low-smoke zero-halogen (LSZH) flame-retardant cable is increasingly becoming an important development direction in the wire and cable industry due to its exceptional safety and environmental properties. Compared with conventional cables, it offers significant advantages in multiple aspects but also faces certain application challenges. This article will explore its performance characteristics, industry development trends, and elaborate on its industrial application foundation based on our company’s material supply capabilities.
1. Comprehensive Advantages of LSZH Cables
(1). Outstanding Environmental Performance:
LSZH cables are made of halogen-free materials, free from heavy metals such as lead and cadmium as well as other harmful substances. When burned, they do not release toxic acidic gases or dense smoke, significantly reducing harm to the environment and human health. In contrast, conventional cables produce large amounts of corrosive smoke and toxic gases when burned, causing severe “secondary disasters.”
(2). High Safety and Reliability:
This type of cable exhibits excellent flame-retardant properties, effectively inhibiting flame spread and slowing down fire expansion, thereby buying valuable time for personnel evacuation and fire rescue operations. Its low-smoke characteristics significantly improves visibility, further ensuring life safety.
(3). Corrosion Resistance and Durability:
The sheath material of LSZH cables offers strong resistance to chemical corrosion and aging, making it suitable for harsh environments such as chemical plants, subways, and tunnels. Its service life far exceeds that of conventional cables.
(4). Stable Transmission Performance:
The conductors typically use oxygen-free copper, which provides excellent electrical conductivity, low signal transmission loss, and high reliability. In contrast, conventional cable conductors often contain impurities that can easily affect transmission efficiency.
(5). Balanced Mechanical and Electrical Properties:
New LSZH materials continue to improve in terms of flexibility, tensile strength, and insulation performance, better meeting the requirements of complex installation conditions and long-term operation.
2. Current Challenges
(1). Relatively High Costs:
Due to stringent raw material and production process requirements, the production cost of LSZH cables is significantly higher than that of conventional cables, which remains a major constraint on their large-scale adoption.
(2). Increased Construction Process Demands:
Some LSZH cables have higher material hardness, requiring specialized tools for installation and laying, which places higher skill demands on construction personnel.
(3). Compatibility Issues to Be Addressed:
When used with traditional cable accessories and connecting devices, compatibility issues may arise, necessitating system-level optimization and design adjustments.
3. Industry Development Trends and Opportunities
(1). Strong Policy Drivers:
As the national commitment to safety and environmental standards in green buildings, public transportation, new energy, and other fields continues to grow, LSZH cables are increasingly mandated or recommended for use in public spaces, data centers, rail transit, and other projects.
(2). Technological Iteration and Cost Optimization:
With advancements in material modification technologies, innovations in production processes, and the effects of economies of scale, the overall cost of LSZH cables is expected to gradually decrease, further enhancing their market competitiveness and penetration rate.
(3). Expanding Market Demand:
Growing public attention to fire safety and air quality is significantly increasing end-users’ recognition and preference for environmentally friendly cables.
(4). Increasing Industry Concentration:
Enterprises with technological, brand, and quality advantages will stand out, while those lacking core competitiveness will gradually exit the market, leading to a healthier and more streamlined industry ecosystem.
4. ONE WORLD Material Solutions and Support Capabilities
As a core supplier of LSZH flame-retardant materials, ONE WORLD is dedicated to providing cable manufacturers with high-performance, high-consistency LSZH insulation materials, sheath materials, and flame-retardant tapes, fully addressing the needs for cable flame retardancy and low-smoke zero-halogen properties.
LSZH Insulation and Sheath Materials:
Our materials exhibit excellent flame retardancy, heat resistance, mechanical strength, and aging resistance. They offer strong processing adaptability and can meet various requirements, including those for medium-high voltage cables and flexible cables. The materials comply with international and domestic standards such as IEC and GB and possess comprehensive environmental certifications.
LSZH Flame-Retardant Tapes:
Our flame-retardant tapes use fiberglass cloth as the base material, coated with a specially formulated metal hydrate and halogen-free adhesive to form an efficient heat-insulating and oxygen-blocking layer. During cable combustion, these tapes absorb heat, form a carbonized layer, and block oxygen, effectively preventing flame spread and ensuring circuit continuity. The product produces minimal toxic smoke, offers excellent mechanical properties, and provides secure bundling without affecting cable ampacity, making it an ideal choice for cable core binding.
Manufacturing and Quality Control Capabilities:
ONE WORLD factory is equipped with advanced production lines and an in-house laboratory capable of conducting a series of tests, including flame retardancy, smoke density, toxicity, mechanical performance, and electrical performance. We implement full-process quality control from raw materials to finished products, providing customers with reliable product assurance and technical support.
In conclusion, LSZH cables represent the future development direction of wire and cable technology, offering irreplaceable value in safety, environmental protection, and sustainability. Leveraging ONE WORLD’s profound expertise in material R&D, production, and quality control, we are committed to working with cable enterprises to advance product upgrades and contribute to building a safer and low-carbon social environment.
Post time: Aug-27-2025