The Single Core 18/30KV Aluminium Tape Armoured Cable is designed for medium voltage power distribution systems, operating at 18/30kV (Uo/U) and 50Hz frequency. These cables are suitable for indoor and outdoor installations, including cable ducts, underground trenches, water, and industrial cable trays. Thanks to their aluminium tape armour, they offer excellent mechanical protection, making them ideal for power stations, substations, and infrastructure projects.
Key Applications
Power distribution in substations and utility networks
Industrial and infrastructure power supply systems
Suitable for underground, in-duct, and tray installations
Used where enhanced mechanical protection is required
Standards
BS 6622 – Power cables with XLPE insulation for rated voltages from 3.8/6.6kV to 19/33kV
IEC 60502-2 – Power cables with extruded insulation and rated voltages 6kV and above
BS 7835 – For LSZH versions (Low Smoke Zero Halogen)
Cable Construction
| Component | Description |
|---|---|
| Conductor | Plain annealed, compacted circular copper or aluminium conductor (Class 2) |
| Conductor Screen | Extruded semi-conductive compound |
| Insulation | XLPE (Cross-linked polyethylene), rated at 90°C |
| Insulation Screen | Extruded semi-conductive compound |
| Metallic Screen | Copper tape or concentric copper wires |
| Core Identification | Red, Yellow, or Blue tape applied between insulation screen and metallic screen |
| Inner Sheath | Extruded PVC ST2 or PE (LSZH upon request) |
| Armour | Double aluminium tape (single-core cables) |
| Outer Sheath | PVC ST2 to IEC 60502 or PE, optional LSZH |
Single Core 18/30KV Aluminium Tape Armoured Cable Construction
Technical Characteristics
Voltage Rating: 18/30kV
Conductor Operating Temperature: 90°C
Short Circuit Temperature: 250°C (for 5 seconds)
Installation Temperature: ≥ 0°C
Bending Radius: ≥ 15 × overall diameter (recommended)
Flame Retardancy: Available on request (IEC 60332-1)
Minimum Service Life: 25 years
Dimensional & Electrical Data
| Size (mm²) | Insulation Thickness (mm) | Armour (mm) | Sheath (mm) | Overall Ø (mm) | Weight (kg/km) Cu | Weight (kg/km) Al | Ampacity in Air (A) Cu/Al | Ampacity in Soil (A) Cu/Al |
|---|---|---|---|---|---|---|---|---|
| 1×25 | 8.0 | 2×0.5 | 2.0 | 32.8 | 1443.2 | 1290.9 | 170 / 130 | 160 / 125 |
| 1×35 | 8.0 | 2×0.5 | 2.0 | 33.8 | 1585.8 | 1373.5 | 205 / 160 | 190 / 150 |
| 1×50 | 8.0 | 2×0.5 | 2.1 | 36.6 | 1803.0 | 1506.5 | 250 / 190 | 225 / 175 |
| 1×70 | 8.0 | 2×0.5 | 2.2 | 38.3 | 2091.5 | 1670.1 | 305 / 240 | 275 / 215 |
| 1×95 | 8.0 | 2×0.5 | 2.2 | 40.0 | 2401.9 | 1824.4 | 375 / 290 | 335 / 260 |
| 1×120 | 8.0 | 2×0.5 | 2.3 | 41.6 | 2727.1 | 1996.7 | 435 / 335 | 380 / 295 |
| 1×150 | 8.0 | 2×0.5 | 2.3 | 43.3 | 3083.1 | 2165.4 | 490 / 380 | 425 / 330 |
| 1×185 | 8.0 | 2×0.5 | 2.4 | 45.1 | 3516.4 | 2380.2 | 565 / 435 | 485 / 375 |
| 1×240 | 8.0 | 2×0.5 | 2.5 | 47.6 | 4160.2 | 2680.6 | 665 / 520 | 565 / 435 |
| 1×300 | 8.0 | 2×0.5 | 2.5 | 49.9 | 4826.4 | 2969.2 | 760 / 590 | 635 / 495 |
| 1×400 | 8.0 | 2×0.5 | 2.7 | 53.3 | 5889.5 | 3467.3 | 890 / 695 | 730 / 570 |
| 1×500 | 8.0 | 2×0.5 | 2.8 | 56.6 | 7038.2 | 3960.5 | 1030 / 810 | 830 / 655 |
| 1×630 | 8.0 | 2×0.5 | 2.9 | 60.4 | 8423.6 | 4569.3 | 1200 / 950 | 950 / 755 |
Why Choose TOT Wire & Cable?
Wide range of medium voltage cable sizes and configurations
Competitive pricing with strict quality control
Support for custom lengths, packaging, and export documentation
Available in LSZH and flame-retardant options
Reliable delivery for large infrastructure and utility projects
Contact Us for Technical Support or a Quotation
Need assistance selecting the right MV armoured cable? Want a PDF datasheet or quote?
Get in touch with our sales team today—TOT Wire & Cable is ready to supply high-quality medium voltage cables for your next project.