Description
XLPE Unarmored cable with Aluminum conductor
Standards
International : IEC 60228; IEC 60502-2Description
AL/SC/XLPE/SC/SC TAPE/CU WIRES/PE
APPLICATION
Power use outdoor application, even wet.
Suitable for fixed installations at open air, in tube or canals and underground.
Max. Operation temperature: 90°
Max. Short circuit temperature : 250° (Max 5 s)
CONSTRUCTION
1. Conductor:
Compacted Round conductor class 2
2. Insulation:
Extruded inner semi conductive layer, XLPE insulation and extruded outer semi conductive layer + semi conductive tape
3. Metallic screen layer:
Copper wires with open helix copper tape
4. Outer sheath:
PE, Black or as per customer requirement
7. Marking:
By Inkjet
8. Packing:
Drums can be wooden or steel
Characteristics
| Construction characteristics | |
|---|---|
| Conductor material | Aluminum |
| Conductor flexibility | Stranded class 2 |
| Conductor shape | Round compacted |
| Material of the inner semi-conductor | Semi-conducting compound |
| Insulation | XLPE |
| Material of the external semi-conductor | Extruded fully bonded |
| Concentric conductor | Copper wires and helical copper tape |
| Outer sheath | PE |
| Sheath colour | Black |
| Dimensional characteristics | |
| Conductor cross-section | 185mm² |
| Conductor diameter | 16.2mm |
| Nominal insulation thickness | 8.0mm |
| Screen section | 50mm² |
| Nominal outer sheath thickness | 2.3mm |
| Nominal outer diameter | 40.0mm |
| Approximate net weight | 1852kg/km |
| Electrical characteristics | |
| Test voltage | 63kV |
| Rated Voltage Uo/U (Um) | 18 / 30 (36) kV |
| Frequence | 50Hz |
| Perm current rating in air 30°C | 424A |
| Permissible current rating when buried | 317A |
| Max. DC resistance of the conductor at 20°C | 0.164Ohm/km |
| A.C. Conductor resist. 50Hz and at 90 °C | 0.21Ohm/km |
| Permissible short circuit current conductor 1s | 17.9kA |
| Thermal soil resistivity wet zone | 1.5K*m/W |
| Mechanical characteristics | |
| Mechanical resistance to impacts | Good |
| Cable flexibility | 10xD |
| Usage characteristics | |
| Bending factor when laying | 20(xD) |
| Laying depth, center of system | 800mm |
| Ambient air temperature | 30°C |
| Ambient ground temperature | 20°C |
| Max. conductor temperature in service | 90°C |
| Short-circuit max. conductor temperature | 250°C |
| Minimum operating temperature | -35°C |
