The 12/20kV Medium Voltage Single Core Aluminum Conductor XLPE Underground Power Cable is designed for reliable direct burial and underground power distribution in industrial and infrastructure EPC projects. Manufactured in compliance with IEC 60502-2, this aluminum core cable delivers superior electrical performance combined with mechanical robustness for long-term underground operation.
The stranded compacted aluminum conductor ensures excellent conductivity and flexibility, while the XLPE insulation provides high dielectric strength and thermal stability up to 90 deg C. A copper tape or wire screen layer ensures uniform electric field distribution, and the PVC/PE outer sheath guarantees moisture resistance and mechanical protection in underground environments. This medium voltage cable is widely used in:
Engineered as a complete underground power cable solution, this product combines the cost advantages of an aluminum conductor cable with the proven reliability of XLPE insulation technology, meeting the rigorous demands of international EPC specifications.
| Industry | Application Scenario | Key Requirements |
|---|---|---|
| Infrastructure / EPC | Metro railway power supply, airport terminal distribution | Fire resistance, LSZH sheath, underground durability |
| Mining Industry | Underground mine power transmission, tunnel distribution | Abrasion resistance, flame retardancy, mechanical protection |
| Oil & Gas | Refinery MV distribution, petrochemical plant supply | Chemical resistance, UV resistance, high temperature tolerance |
| Power / Utility | Underground grid interconnection, substation feeder | High current capacity, low dielectric loss, long service life |
| Industrial Plant | Factory MV ring main, processing plant distribution | Robust construction, easy installation, cost efficiency |
| Parameter | Specification |
|---|---|
| Rated Voltage | 12/20kV (Um=24kV) |
| Conductor Material | Aluminum (Stranded Circular Compacted, Class 2) |
| Conductor Cross-section | 50mm² - 630mm² |
| Insulation Material | XLPE (Cross-linked Polyethylene) |
| Insulation Thickness | 5.5 mm |
| Screen Type | Copper Tape / Copper Wire Screen |
| Inner Sheath | PVC (ST2) |
| Outer Sheath | PVC (ST2) / PE (ST7) |
| Applicable Standard | IEC 60502-2 |
| Max Operating Temperature | 90 °C |
| Short-circuit Temperature | 250 °C (max 5s) |
| Min Installation Temperature | 0 °C |
| Min Bending Radius | ≥ 15 x Cable Diameter |
| Installation Method | Underground Installation, Direct Burial, Cable Trench Installation, Duct |
| Cross-section (mm²) |
Conductor Diameter (mm) |
Insulation Thickness (mm) |
Sheath Thickness (mm) |
Approx Overall Diameter (mm) |
Approx Weight (kg/km) |
Current Rating (A) | |
|---|---|---|---|---|---|---|---|
| In Air | Buried | ||||||
| 1*50 | 8.3 | 5.5 | 1.8 | 22 | 57 | 199 | 182 |
| 1*70 | 9.8 | 5.5 | 1.8 | 24 | 70 | 247 | 224 |
| 1*95 | 11.4 | 5.5 | 1.8 | 25 | 87 | 300 | 268 |
| 1*120 | 12.8 | 5.5 | 1.8 | 27 | 105 | 347 | 307 |
| 1*150 | 14.2 | 5.5 | 1.9 | 29 | 119 | 394 | 341 |
| 1*185 | 15.8 | 5.5 | 1.9 | 30 | 140 | 449 | 386 |
| 1*240 | 18.0 | 5.5 | 1.9 | 34 | 171 | 528 | 443 |
| 1*300 | 20.2 | 5.5 | 2.0 | 37 | 204 | 602 | 498 |
| 1*400 | 23.0 | 5.5 | 2.1 | 41 | 252 | 684 | 557 |
| 1*500 | 25.8 | 5.5 | 2.1 | 44 | 309 | 784 | 627 |
| 1*630 | 29.0 | 5.5 | 2.1 | 47 | 376 | 890 | 708 |
Note: Current ratings based on standard conditions (30°C ambient air, 20°C ground temperature, single circuit). For multi-circuit or special installation conditions, please contact our engineering team for derating calculations.
| Standard | Description |
|---|---|
| IEC 60502-2 | Power cables with extruded insulation for rated voltages 6kV to 30kV |
| IEC 60228 | Conductors of insulated cables (Class 2 stranded) |
| IEC 60332-1 | Flame retardant test for single cable |
| IEC 60754 | Halogen gas emission test (LSZH option) |
| CE | European Conformity marking |
| ISO 9001:2015 | Quality Management System |
| ISO 14001:2015 | Environmental Management System |
All cables undergo routine testing per IEC 60502-2 including partial discharge test (PD), high voltage AC test, and conductor resistance measurement. Third-party inspection by SGS, BV, or TUV can be arranged upon request.
Aluminum conductors offer approximately 50% weight reduction compared to equivalent copper conductors, significantly lowering transportation and installation costs. For the same current carrying capacity, aluminum cables typically cost 30-50% less than copper equivalents, making them the preferred choice for large-scale infrastructure and EPC projects without compromising performance.
Yes, our 12/20kV XLPE insulated cables with PVC or PE outer sheath are designed for direct burial installation. The robust sheath construction provides adequate mechanical protection and moisture resistance. For areas with high mechanical risk, armoring (STA/SWA) is recommended. Please consult our technical team for installation-specific recommendations.
Standard delivery time is 15-25 working days depending on order volume and specification. For large EPC projects, we provide phased delivery schedules aligned with project milestones. Rush orders can be accommodated with priority production arrangements.
Yes, we offer fully customized cable designs including alternative conductor sizes, special screen configurations, armored variants (SWA/STA), LSZH sheaths, and region-specific standards (BS, ASTM, AS/NZS). Contact our engineering team with your project requirements for a tailored solution.
Every cable drum ships with a Factory Acceptance Test (FAT) report including conductor resistance, voltage test, and partial discharge test results per IEC 60502-2. We also provide material certificates, drum marking details, and installation guidelines. Additional third-party inspection by SGS/BV/TUV can be arranged.
Download technical documentation for project evaluation and specification:
For complete project documentation, factory visit arrangements, and sample requests, please contact our sales team.