LSZH Material Selection Guide

Everest Cable Materials LSZH Material Selection Guide, Empowering Safer Cable Design

May 23, 2025, Shenzhen, China—Everest Cable Materials, a global leader in polymer material solutions, today unveiled its Low Smoke Zero Halogen (LSZH) Material Selection and Application Whitepaper, providing comprehensive guidelines for safe and eco-friendly cable design in telecommunications, power, and rail transit industries.  

1. Core Advantages: Safety Meets Sustainability

LSZH materials, with minimal smoke and zero toxic halogen emissions during combustion, are ideal for high-density environments (e.g., data centers, subways, nuclear plants). Key benefits over PVC include:  

- Low Toxicity: No halogen acid gases, reducing suffocation risks;  

- Low Smoke Density: Light transmittance ≥60%, enhancing visibility in fires;  

- High Flame Retardancy**: Oxygen index ≥30, with enhanced formulas reaching 40;  

- Eco-Friendly: Recyclable and heavy-metal-free.  

2. Five Critical Selection Criteria

Everest whitepaper highlights essential parameters:  

- Flame Retardancy: Oxygen index ≥30 (per YD/T1173-2001), with ≥35 for high-temperature applications;  

- Mechanical Strength: Tensile strength ≥10MPa, elongation ≥150%;  

- Thermal Stability: Heat shrinkage ≤5‰ at 120°C and aging resistance;  

- Process Compatibility: Optimized screw compression ratio (1:1~1:2.5) and extrusion temperature (10~20°C lower than PVC);  

- Certifications: Compliance with UL HF/LSZH, IEC 60754 for global markets.  

3. Innovation Breakthrough: 5G-Optimized Solutions

For 5G and data center demands, Everest Cable Materials introduced a “Boron Nitride-Aluminum Hydroxide Hybrid System”, achieving oxygen index 40% with heat shrinkage <5‰ and 20% higher mechanical performance. This technology has been adopted in a 5G base station project, passing 120°C×168h aging tests with ≤15% performance deviation.  

4. Industry Applications

LSZH materials are widely used in:  

- Telecom: 5G cable sheaths, data center cabling;  

- Transportation: Subway tunnels, high-speed rail signaling;  

- Energy: Nuclear plants, offshore wind power cables.  

5. Market Outlook: Green Growth Accelerates

According to Bizwit Research, the global LSZH cable market will exceed CNY 100 billion by 2029, driven by China’s 4.65% CAGR. Everest Cable Materials pledges to advance R&D for smart grids and EV applications.