Single Core 12.7/22KV Medium Voltage Unarmoured Cable

Single Core 12.7/22KV (Um=24KV)

Voltage: 12.7/22kV

Conductor: Copper or Aluminum

Operating Temperature: up to 90°C

Short Circuit Temperature: 250°C

Bending Radius: 12 x OD

Single Core 12.7/22KV 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 12.7/22KV Medium Voltage Unarmoured Cable Standard
BS 6622, IEC60502-2, BS 7835 (LSZH Version)
CONSTRUCTION :
Single Core 12.7/22KV 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.
Single Core 12.7/22KV Medium Voltage Cable Dimensional Data
  Unarmoured Cables
Nom. Cross-Section AreaNom. Insulation ThicknessCopper Wire Screen AreaNom. Sheath ThicknessApprox. Overall DiameterApprox. Weight
     
     CUAL
mm^2mmmm^2mmmmkg/km
355.5161.727.41100800
505.5161.828.813301010
705.5161.930.615701130
955.5161.932.218401240
1205.516233.821201360
1505.525235.524401500
1855.5252.137.228101640
2405.5252.239.933901860
3005.5252.241.939902110
4005.5352.345.851002490
5005.5352.448.460002900
6305.5352.553.673403340

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