Description
Standards
International : IEC 60332-1; IEC 60502-2National : BS 6622
Description
Application
These power cables are used for electricity supply in medium voltage installation system. They are well adapted to underground use in industrial application where chemical and mechanical protections are needed. This group is complying with IEC 60502-2 or BS 6622.
Design
1. Conductor
Stranded bare copper class 2 acc. to IEC 60228 or equivalent
2. Insulation
Triple extruded Inner semi conductive layer - Cross Linked Polyethylene 'XLPE' - Outer semi conductive layer
3. Metalic Screen
Copper wire screen with open helix copper tape
4. Inner Sheathing or Bedding
Extruded PVC
5. Outer Sheath
Polyvinyl Chloride 'PVC'
Options :
- Flame retardant : 'CAT A, CAT B, CATC' to IEC60332 or equivalent.
- Ozone resistant.
- Oil resistant.
- Anti termite.
Sheathing layers can be Halogen Free Flame Retardant "HFFR", or Polyethylene '"PE'
Installation Conditions:
1.Air Temperature : 30 Deg.
2.Ground Temperature : 20 Deg
3.Soil Thermal Resistivity : 1.5 km/w
4.Depth of lay : 0.8 m
All dimensions have tolerance +-7 %
Marking
no. of cores x conductor size mm2 Cu/XLPE/PVC Voltage grade V Standard MADE IN QATAR QICC - Nexans Year Meters
Custom marking available
Characteristics
Construction characteristics | |
---|---|
Conductor material | Copper |
Conductor flexibility | Stranded class 2 |
Conductor shape | Circular compacted |
Material of the inner semi-conductor | Semi-conducting compound |
Insulation | XLPE (Cross-linked Polyethylene) |
Material of the external semi-conductor | Semi-conducting compound |
Screen | Copper wire + copper tape |
Inner sheath | PVC |
Armour type | Unarmoured |
Outer sheath | PVC compound |
Sheath colour | Black |
Dimensional characteristics | |
Conductor cross-section | 240mm² |
Nominal outer diameter | 79.0mm |
Approximate weight | 11105kg/km |
Electrical characteristics | |
Rated Voltage Uo/U (Um) | 12 / 20 (24) kV |
Voltage drop, 3 conductors | 0.15V/A.km |
Nominal phase capacitance | 0.3µF / km |
Permissible current rating when buried | 434A |
Permissible current rating in open air | 531A |
Max. DC resistance of the conductor at 20°C | 0.0754Ohm/km |
Mechanical characteristics | |
Mechanical resistance to impacts | Good |
Usage characteristics | |
Max. conductor temperature in service | 90°C |
Flame retardant | IEC 60332-1 |
Bending factor when laying | 30(xD) |
Bending factor when installed | 15(xD) |
Short-circuit max. conductor temperature | 250°C |
Docs and info
Selling information
Note: On request we are delivering three single core laid up cables on one drum