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
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