Single Core 3.8/6.6KV Medium Voltage Unarmoured Cable

The Single Core 3.8/6.6kV Medium Voltage Unarmored Cable is designed for efficient and reliable electrical power transmission at medium voltage levels up to 6.6kV. It features a single insulated conductor, typically made of copper or aluminum, with XLPE insulation that provides excellent dielectric properties, thermal stability, and resistance to environmental conditions. Being unarmored, the cable is flexible and easy to install, suitable for indoor and outdoor applications where mechanical protection is not a primary concern. This type of cable is commonly used in industrial plants, power distribution networks, and infrastructure projects to ensure safe, stable, and efficient electrical delivery. Proper handling and installation are crucial to maintain its performance and durability.

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  • Single Core 3.8 6.6kv Medium Voltage Unarmoured Cable

Single Core 3.8/6.6KV Medium Voltage Unarmoured Cable

Single Core 3.8/6.6KV (Um=7.2KV)

  • Rated Voltage 3.8/6.6kV
  • Conductor Material Copper or Aluminum
  • Operating Temperature up to 90°C
  • Short Circuit Temperature 250°C
  • Bending Radius 12 x OD

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Single Core 3.8/6.6KV Medium Voltage Unarmoured Cable Application

The single core cables are designed for distribution of electrical power with nominal voltage Uo/U ranging from 3.8/6.6KV to 19/33KV and frequency 50Hz. They are suitable for installation mostly in power supply stations, indoors and in cable ducts, outdoors, underground and in water as well as for installation on cable trays for industries, switchboards and power stations.

Single Core 3.8/6.6KV Medium Voltage Unarmoured Cable Standard

BS 6622, IEC60502-2, BS 7835 (LSZH Version)

CONSTRUCTION :
Single Core 3.8/6.6KV Medium Voltage Unarmoured Cable Construction

Single Core Medium Voltage Unarmoured Cable Construction

Single Core Medium Voltage Unarmoured Cable Construction

Conductor: Plain annealed copper or aluminium wire. Copper conductors shall be stranded (class 2) and aluminium conductors shall be either solid or stranded (class 2).
Conductor Screen: Extruded layer of semi-conducting cross-linkable compound.
Insulation: cross-linked polyethylene compound XLPE or EPR.
Insulaton Screen: Extruded layer of semi-conducting cross-linkable compound is applied over the insulation.
Metallic Layer: copper tapes or a concentric layer of copper wires or a combination of tapes and wires.
Separation Sheath (for armoured cable): PVC, PE or LSZH.
Armour (for armoured cable): round aluminium wire.
Over Sheath: PVC or MDPE. LSZH can be offered as an option.

DIMENSIONAL DATA
Single Core 3.8/6.6KV (Um=7.2KV) Dimensional Data
Nom. Cross-Section Area 　 Unarmoured Cables
Nom. Insulation Thickness Copper Wire Screen Area Nom. Sheath Thickness Approx. Overall Diameter Approx. Weight
CU AL
mm^2 mm mm^2 mm mm kg/km
25 2.5 16 1.5 20.3 750 580
35 2.5 16 1.6 21.3 870 650
50 2.5 16 1.6 22.4 1090 770
70 2.5 16 1.7 24.2 1310 870
95 2.5 16 1.7 25.8 1560 960
120 2.5 16 1.8 27.4 1830 1070
150 2.5 25 1.8 29.1 2130 1190
185 2.5 25 1.9 30.8 2490 1320
240 2.6 25 1.9 33.5 3040 1520
300 2.8 25 2 36.1 3650 1770
400 3 35 2.2 40.6 4680 2170
500 3.2 35 2.3 43.6 5670 2570
630 3.2 35 2.4 48.8 6980 2990
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