The Single Core 6.35/11kV Medium Voltage Unarmoured Cable is engineered for reliable power transmission in medium voltage networks. Featuring a robust XLPE or EPR insulation system and a metallic screening layer, this cable is ideal for applications where mechanical protection from armour is not required. Commonly installed in power distribution networks, substations, and industrial facilities, it offers high thermal performance, excellent electrical characteristics, and long service life under both indoor and outdoor conditions.
Application
Designed for electrical power distribution at nominal voltages of 6.35/11kV (Uo/U) and 50Hz frequency, this single core unarmoured cable is suitable for the following installation environments:
Power supply stations and substations
Indoor and cable duct installations
Buried or underground systems
Wet locations, including water-logged areas
Industrial switchboards and cable trays
Its unarmoured design allows for easy handling and flexible routing, especially in confined spaces.
Standards
This cable is manufactured in accordance with international standards:
IEC 60502-2
BS 6622
BS 7835 (Low Smoke Zero Halogen version)
Construction
| Component | Description |
|---|---|
| Conductor | Plain annealed copper (stranded, Class 2) or aluminium (solid or stranded, Class 2) in accordance with IEC 60228 |
| Conductor Screen | Extruded semi-conducting cross-linkable compound |
| Insulation | XLPE (Cross-linked Polyethylene) or EPR (Ethylene Propylene Rubber) |
| Insulation Screen | Extruded semi-conducting cross-linkable compound applied over insulation |
| Metallic Screen | Copper tape, concentric copper wires, or combination of both for fault current return and shielding |
| Outer Sheath | PVC or MDPE; LSZH available on request for enhanced fire performance |
Single Core Medium Voltage Unarmoured Cable Construction
Key Features
Rated for continuous operation at 90°C (XLPE insulation)
Excellent electrical insulation and dielectric strength
Lightweight and easy to install
Suitable for dry, damp, or submerged environments
Flame retardant and low smoke emission versions available