Robust XLPE Cable for Transportation & Industrial Automation
WDZ-YJY23 armored cable delivers superior performance for electrical wiring in safety-critical transportation infrastructure and industrial automation systems.

Four Major Advantages for Safety-Critical Projects
1. LSZH Flame-Retardant System – Fire Safety Without Toxic Gases
WDZ-YJY23 is engineered to reduce harm in case of fire:
- Flame-retardant performance: Self-extinguishes after ignition source removal and prevents flame propagation
- Halogen-free formulation: No chlorine, bromine, or similar halogen gases released during burning
- Low smoke output: Maintains higher visibility in escape routes for safer evacuation
- Low corrosive impact: Combustion by-products with mild acidity (pH ≥ 4.3) protect equipment
2. Double Steel Tape Protection – Built for Direct Burial & Concealed Installations
For routes demanding mechanical and environmental resilience:
- Enhanced mechanical protection: High resistance to pressure and tearing (up to 1100 N/100 mm)
- Direct burial ready: Can be buried at 0.7 m depths without additional protective ducts
- Rodent and insect defense: Armored structure prevents animal damage during concealed routing
- Ingress protection: IP65 rating provides resistance to dust, water, and mechanical impact
- Service life: 25+ years of service under normal conditions
3. High-Grade Insulation & Sheath – Stable Electrical Performance
- XLPE Insulation: Continuous working temperature up to 90°C, withstands -40°C without embrittlement
- PE Sheath: Non-toxic, excellent weathering and UV resistance, maintains flexibility
- Copper Conductor: High-purity electrolytic copper (99.97% IACS) for low resistance and heat build-up
4. Standards-Driven & Widely Applicable
Complies with mandatory fire and environmental standards including GB/T 19666, GB 12666, and GB 50217.
Typical applications: Metro systems, airports, hospitals, data centers, and industrial sites with halogen-free requirements.
Key Technical Specifications
| Cores * Section (mm²) |
Conductor Type |
Insulation Thickness (mm) |
Armor Thickness (mm) |
Sheath Thickness (mm) |
Outer Diameter (mm) |
Rated Voltage (kV) |
Weight (kg/km) |
DC Resistance at 20°C (Ω/km) |
| 3 * 10 + 1 * 6 |
High-purity copper |
1.0 |
0.8 |
2.0 |
29.8 |
0.6/1 |
480 |
≤ 1.83 |
| 3 * 16 + 1 * 10 |
High-purity copper |
1.0 |
0.8 |
2.0 |
33.5 |
0.6/1 |
650 |
≤ 1.15 |
| 3 * 25 + 1 * 16 |
High-purity copper |
1.2 |
0.8 |
2.2 |
39.2 |
0.6/1 |
920 |
≤ 0.74 |
| 3 * 50 + 1 * 25 |
High-purity copper |
1.4 |
1.0 |
2.5 |
48.6 |
0.6/1 |
1580 |
≤ 0.38 |
| 4 * 120 |
High-purity copper |
1.6 |
1.0 |
2.8 |
60.5 |
0.6/1 |
2850 |
≤ 0.16 |
| 5 * 240 |
High-purity copper |
2.0 |
1.2 |
3.2 |
85.3 |
0.6/1 |
5680 |
≤ 0.08 |
Custom Options Available
- 1–5 cores with cross-sections from 1.5–400 mm²
- Flame-retardant grades WDZ-A / WDZ-B / WDZ-C
- Rated voltage up to 10 kV configurations
- Optional oxygen-free copper conductors with higher conductivity

Recommended Application Scenarios
- ✓High-Rise Buildings & Residential Towers – Main risers and distribution circuits
- ✓Metro Lines, Airports & Rail Terminals – Safe evacuation in enclosed spaces
- ✓Hospitals, Schools & Commercial Complexes – Strict safety audit compliance
- ✓Data Centers & Control Rooms – Reduces corrosive damage risk
- ✓Electronics & Chemical Facilities – Halogen-free design meets environmental requirements
- ✓Underground Utility Corridors – Moisture and corrosion resistance
- ✓Municipal Projects & Bridges – Weathering and UV resistance

Frequently Asked Questions
Q1: Why choose low smoke zero halogen instead of standard PVC-sheathed cables?
A: LSZH materials greatly reduce smoke output and eliminate halogen acid gases, making escape routes more visible and limiting toxic exposure during fires.
Q2: Is WDZ-YJY23 suitable for direct burial?
A: Yes. The double steel tape armoring and polyethylene outer sheath make it suitable for direct-burial applications when installed according to engineering codes.
Q3: How does this cable protect sensitive equipment?
A: Halogen-free materials and low corrosive gas production significantly lower the risk of damage to metallic parts and electronics during fires.
Q4: Can WDZ-YJY23 be used outdoors?
A: Yes. The PE sheath offers excellent weather and UV resistance for both indoor and outdoor installations.
Q5: What flame-retardant classes are available?
A: Standard designs target Class B, while higher levels such as Class A can be provided on request.
Q6: How do I know if WDZ-YJY23 is the right choice?
A: If your project involves crowded spaces, enclosed environments, or strict fire audits—such as high-rise buildings, public transportation, or data centers—WDZ-YJY23 is typically a strong candidate