Medium Voltage Power Cable

Cceho is a leading medium-voltage power cable manufacturer & supplier – offering OEM/ODM services with competitive factory pricing! Rated 5kV- 35kV cable is used for distribution circuits in industrial and commercial installations. Medium Voltage Power Cable is suitable for use in wet or dry locations, installed in raceways, duct, and open air, aerially or directly buried as permitted by NEC. Temperature not to exceed 105°C (MV105).

Construction of a MV Cable

Conductor

There are 2 types of conductors that we use for the construction of our MV cables: Copper and Aluminium.

· Copper: Made from electrolytic copper with a purity exceeding 99.95%.

· Aluminium: Drawn from aluminium ingots with a minimum purity of 99.70%.

Conductor Screen

Our conductor screen is an extruded cross-linked semi-conducting compound that covers the metallic conductor. This layer acts as a stress point in the insulation, potentially weakening its long-term durability.

Insulation Screen

The insulation screen is a cross-linked semi-conducting compound extruded over the insulation. It provides a smooth surface, serving as a transition material between the insulation where an electric field exists and the conductive metallic screen, where the electric field is zero. Thus, this reduces the stress at the insulation layer.

Metallic Screen

The metallic screen typically consists of a layer of helically applied copper tape with an overlap, over the insulation screen. The metallic screen in a 3-Core cable ensure that the electric field remains contained within the cable core.

Cable Assembly (Optional)

For 3-Core cables, identification taoes (Brown, Black, Grey) are placed under the metallic screen before the cores are laid up.

A non-hygroscopic polypropylene filler is applied between the laid-up cores to provide a circular shape for the overall cable. Polypropylene tape(s) or PETP (Polyester) tape(s) is used as a barrier tape over the laid-up cores.

Separation Sheath (Optional)

All armoured cables include an extruded layer of Black PVC , MDPE , or LSZH  separation sheath, applied over the core or laid-up cores to prevent corrosion by separating different metals and avoiding galvanic effects.

Armour (Optional)

In armoured cables, the armour is applied over a separation sheath for additional mechanical protection. Single-core cables use aluminium wires (AWA), double aluminium tape armour (DATA), while multi-core cables use galvanised steel wire armour (SWA), or double galvanised steel tape armour (DSTA).

Outer Sheath

All Medium Voltage Power Cable have an extruded layer of PVC , MDPE , or LSZH  outer sheath over the core, laid-up core, or the armour. This outsheath, usually black, protects the cables from sunlight and termites. Another colour may also be provided upon agreement between the manufacturer and purchaser.