WDZA-YJY (8.7/15kV) is a low-smoke halogen-free (LSZH) Class A flame-retardant power cable designed specifically for critical medium-voltage (MV) power distribution at 15kV and below. It features copper conductors and cross-linked polyethylene (XLPE) insulation. Compliant with IEC 60502-2, IEC 60332-3, IEC 60754, IEC 61034, and GB/T 12706 standards, this cable provides superior electrical performance, thermal stability, and fire safety for high-risk, high-value infrastructure.

This cable features a compact stranded copper conductor (compliant with IEC 60228 Class 2 standards), a three-layer cross-linked polyethylene (XLPE) insulation layer (including a semi-conductive shielding layer), a copper tape shielding layer, and a low-smoke halogen-free polyolefin (LSZH) sheath. It has a continuous operating temperature of 90°C and a short-circuit temperature of 250°C (≤5 seconds), exhibiting excellent partial discharge resistance and low dielectric loss—crucial for the long-term reliability of industrial, utility, and public infrastructure applications.

• Class A flame retardant: Self-extinguishing, no flame spread in bundled tests (IEC 60332-3).
• LSZH safety: Zero halogen, low smoke (light transmittance ≥60%), non-toxic, non-corrosive—ideal for tunnels, metros, data centers, hospitals, high-rises.
• MV reliability: 8.7/15kV rating, robust screening, XLPE insulation for long service life (≥30 years) and minimal maintenance.
• Global compliance: CE, RoHS, ISO 9001; meets IEC, GB, and major regional standards for easy project approval.
• Installation flexibility: Suitable for duct, direct burial, indoor, and outdoor installation; minimum bending radius 15×OD; operating temperature ‑20°C to +90°C.
  

1. Electrical and Thermal Reliability
   • XLPE Insulation: Low dielectric constant, high breakdown strength, excellent resistance to aging and environmental stress—ensuring stable operation under high voltage and temperature cycling.
   • Copper Conductor: High conductivity (100% IACS), low resistance, reduced power loss; Type 2 stranded structure balances flexibility and current carrying capacity.
   • Shielding System: Inner and outer semiconductive layers + copper strip shielding layer control the electric field, suppress partial discharge, and prevent electromagnetic interference—critical for medium-voltage system stability and personnel safety.
2. Fire Safety and Environmental Compliance (Non-negotiable for high-risk locations)
   • WDZA Rating: W (Halogen-free), D (Low Smoke), Z (Flame Retardant), A (Highest Rating).
   • Flammability: pH ≥4.3, conductivity ≤10μS/mm (IEC 60754); light transmittance ≥60% (IEC 61034)—non-toxic/corrosive gases, facilitating evacuation.
   • Sustainability: Low-smoke, halogen-free materials are recyclable and free of heavy metals and harmful additives—meeting global ESG and green building standards.
     

• Industry: Power plants, oil refineries, chemical plants, heavy machinery feeders.
• Infrastructure: Tunnels, subways, railways, airports, data centers, hospitals, high-rise buildings.
• Utilities: Urban power distribution networks, substations, renewable energy (solar/wind) connections.

• Current Carrying Capacity: Reduce rated current carrying capacity for high-temperature environments, multiple installations, or direct burial—refer to IEC 60287 for calculation methods.
• Short Circuit: 250°C ≤ 5 seconds—verify conductor size based on system fault current.
• Installation: Avoid sharp bends; use low-smoke halogen-free (LSZH) compatible fittings at joints/terminations to ensure fire safety.

4. Procurement and Supply Assurance
   • Global Standards: IEC 60502-2, IEC 60332-3, IEC 60754, IEC 61034, GB/T 12706, CE, RoHS, ISO 9001—Globally recognized, no retesting required.
   • Quality Control: 100% factory testing (partial discharge, voltage, insulation resistance); traceable raw materials and production records.
   • Customization: Single-core/three-core, cross-sectional area 25–800mm²; optional armored (SWA/STA) for mechanical protection.
   • Delivery Time and Packaging: Standard delivery time 20–30 days; export-grade wooden barrel packaging, moisture-proof—ensuring safe long-distance transportation.

WDZA-YJY 8.7/15kV medium-voltage cable is an ideal choice for engineers and procurement personnel who prioritize safety, reliability, and compliance in medium-voltage power distribution. Combining low-smoke halogen-free Class A fire resistance, cross-linked polyethylene insulation, copper conductivity, and global certifications, it meets the most stringent project specifications and is particularly suitable for high-risk, public, and industrial infrastructure.

For technical data sheets, current carrying capacity tables, or customization support, please contact our engineering team.