Zero Halogen Flame Retardant Cable 11KV Fire Resistant Low Smoke Cables
Product Summary
Product Details
Zero Halogen Flame Retardant Cable
,11KV Fire Resistant Low Smoke Cables
,Flame Retardant Cable 11KV
Product Description
Low Smoke Zero Halogen • Fire Resistant • XLPE Insulation • PE Sheath • Non-Armored
WDZN-YJY is a dual-protection safety cable built for projects where cables must not only stop burning, but also stay operational during fire conditions.
Designed for non-direct-burial installations in ultra-high safety environments—such as high-rise towers, hospital operating areas, metro lines, airports, and emergency centers—this cable combines:
- Low Smoke Zero Halogen (LSZH) flame-retardant technology
- Certified fire resistance to maintain circuit integrity under flame
- XLPE insulation & PE sheath for long-term stability
- Non-armored, lightweight construction for easier installation
Engineered to meet stringent codes including GB/T 19666, GB 12666, GB/T 12666.6, it is tailored for projects facing the toughest fire safety acceptance checks.
| Code | Component | Function & Safety Advantage |
|---|---|---|
| WDZ | Low Smoke Zero Halogen Flame-Retardant System | Halogen-free, low-smoke formulation. Under fire, smoke density stays low (≤50%) and no corrosive halogen acid gases are released. Helps prevent flame spread and limits damage to people and equipment. |
| N | Fire-Resistant Function | Indicates fire-resistance capability in line with GB/T 12666.6 Class N. Maintains circuit integrity for approximately 90 minutes at 750°C. |
| YJ | Cross-Linked Polyethylene (XLPE) Insulation | Supports continuous operation at 90°C with high insulation resistance (≥100 MΩ·km). Low dielectric loss improves transmission efficiency. |
| Y | Polyethylene (PE) Sheath | Environmentally friendly, non-toxic outer layer with strong resistance to UV, weathering, and low temperatures. |
WDZN-YJY doesn't just slow fire; it's designed to keep critical systems energized:
- Flame-retardant behavior: Limits flame propagation and avoids burning droplets
- Fire-resistant core: Maintains circuit integrity for 90 minutes at 750°C
- Emergency support: Ensures power for fire-fighting lifts, emergency lighting, sprinkler pumps, and evacuation signage
- Low smoke, halogen-free: Minimal smoke and no toxic fumes for safer evacuation
- Typically 25-30% lighter than comparable armored cables
- Installation efficiency increases by approximately 30%
- Minimum bending radius of only ≈15* cable diameter
- Ideal for vertical shafts, cable trays, conduit wiring, and embedded runs
- XLPE insulation: Operating temperature up to 90°C, handles low temperatures around -40°C
- PE sheath: Non-toxic, halogen-free with strong UV and weather resistance
- High-purity copper conductor: Conductivity close to 99.97% IACS
- Service life can exceed 25 years when installed correctly
Tailored for projects where fire inspections must be passed on the first attempt:
- Supports dual requirements of "flame-retardant + fire-resistant" cables
- Suitable for public infrastructure with strict acceptance rules
- Meets both environmental expectations and emergency power continuity needs
- Flame-retardant grades: WDZ-A / WDZ-B / WDZ-C options
- Fire-resistant categories: Class N / NH as needed
- Core configurations: 1-5 cores, 1.5-400 mm² cross-sectional area
- Voltage class: Upgradable designs up to approximately 10 kV
| Cores * Section (mm²) | Conductor Material | XLPE Insulation (mm) | PE Sheath (mm) | Fire-Resistant Layer (mm) | Approx. Outer Diameter (mm) | Rated Voltage (kV) | Approx. Weight (kg/km) | DC Resistance at 20°C (Ω/km) | Fire Resistance (GB/T 12666.6) |
|---|---|---|---|---|---|---|---|---|---|
| 3 * 10 + 1 * 6 | High-purity copper | 1.0 | 1.8 | 0.5 | 25.8 | 0.6/1 | 420 | ≤ 1.83 | 750°C * 90 min |
| 3 * 16 + 1 * 10 | High-purity copper | 1.0 | 1.8 | 0.5 | 29.2 | 0.6/1 | 560 | ≤ 1.15 | 750°C * 90 min |
| 3 * 25 + 1 * 16 | High-purity copper | 1.2 | 2.0 | 0.6 | 33.8 | 0.6/1 | 780 | ≤ 0.74 | 750°C * 90 min |
| 3 * 50 + 1 * 25 | High-purity copper | 1.4 | 2.2 | 0.6 | 42.3 | 0.6/1 | 1320 | ≤ 0.38 | 750°C * 90 min |
| 4 * 120 | High-purity copper | 1.6 | 2.5 | 0.8 | 53.5 | 0.6/1 | 2450 | ≤ 0.16 | 750°C * 90 min |
| 5 * 240 | High-purity copper | 2.0 | 3.0 | 0.8 | 73.2 | 0.6/1 | 4800 | ≤ 0.08 | 750°C * 90 min |
Fire-resistant cabling for evacuation routes, emergency systems and main risers
Power supply to life-sustaining and emergency systems
Maintains power for evacuation signage and emergency lighting
High-density zones needing halogen-free, low-smoke behavior
Buildings with vulnerable occupants requiring extra evacuation time
High crowd density demanding dual-certified cables