WDZ-YJY23 Flame Retardant XLPE LSZH Cable Double Steel Tape Armoring Safety

WDZ-YJY23 is engineered to reduce harm in case of fire:

• Flame-retardant performance: The cable self-extinguishes after removing the ignition source and is designed to prevent flame propagation and molten dripping.
• Halogen-free formulation: No chlorine, bromine, or similar halogen gases are released during burning, so there is no thick, choking acid smoke and far lower risk of poisoning or asphyxiation.
• Low smoke output: The low-smoke sheath and flame-retardant design help maintain higher visibility; escape paths remain more visible, allowing more time for evacuation and rescue.
• Low corrosive impact: Combustion by-products exhibit relatively mild acidity (pH ≥ about 4.3), which helps protect metal supports, equipment, and cable trays, decreasing the cost of repair and replacement after a fire.

For routes that demand both mechanical and environmental resilience:

• Enhanced mechanical protection: Double steel tape armoring offers high resistance to pressure and tearing, typically up to around 1100 N / 100 mm.
• Direct burial ready: Can be buried at depths around 0.7 m in many designs without additional protective ducts, while coping with backfill, ground settlement, and routine construction activities.
• Rodent and insect defense: The armored structure and outer PE sheath help prevent animal damage and abrasion during concealed routing in walls, shafts, and tunnels.
• Ingress protection: Overall protection level can reach approximately IP65, providing strong resistance to dust, splashed water, and light mechanical impact.
• Service life: Combined armoring and durable sheath typically allow 25+ years of service under normal conditions, especially when installed according to code.

• XLPE Insulation:
  • Continuous working temperature up to 90 °C, suitable for standard 0.6/1 kV power distribution.
  • Withstands low temperatures to about -40 °C without embrittlement.
  • Low dielectric loss (tan δ approx. ≤ 0.003) contributes to reduced energy loss and reliable long-distance transmission.
• PE Sheath:
  • Non-toxic and environmentally friendly, aligning with green building requirements.
  • Excellent weathering and UV resistance; no obvious cracking or chalking even after years of outdoor exposure.
  • Maintains flexibility and appearance without plasticizer-related aging, making it a better option than conventional PVC sheath in high-demand projects.
• Copper Conductor:
  • Uses high-purity electrolytic copper (conductivity close to 99.97% IACS).
  • Low resistance reduces heat build-up and voltage drop, enhancing overall system efficiency.
  • Maintains firm and stable connections, reducing the need for frequent tightening and thermal inspections.

WDZ-YJY23 is designed to align with relevant mandatory fire and environmental standards, including but not limited to:

• GB/T 19666: General requirements for flame-retardant and fire-resistant cable performance
• GB 12666: Flame-retardant and fire testing for cables and wiring
• GB 50217 and related building/installation codes for cables in high-occupancy spaces

Typical fields where these requirements apply:

• Metro systems, airports, major railway stations
• Hospitals, schools, large shopping centers
• Data centers, control rooms, and industrial sites with halogen-free requirements

Installation options include direct burial, conduit, overhead, cable trays, and tunnels, enabling WDZ-YJY23 to cover the majority of high-compliance use cases.