XHKXS 1*400/50 18/30KV

Description

Description

Standards

  • International
    IEC 60228; IEC 60502-2

CU/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

Characteristics

Construction characteristics

Construction characteristics

Conductor material
Copper
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

Dimensional characteristics

Conductor cross-section
400 mm²
Conductor diameter
23.2 mm
Nominal insulation thickness
8.0 mm
Screen section
50 mm²
Nominal outer sheath thickness
2.5 mm
Nominal outer diameter
48.0 mm
Approximate net weight
5006 kg/km

Electrical characteristics

Electrical characteristics

Test voltage
63 kV
Rated Voltage Uo/U (Um)
18 / 30 (36) kV
Frequence
50 Hz
Perm current rating in air 30°C
845 A
Permissible current rating when buried
590 A
Max. DC resistance of the conductor at 20°C
0.047 Ohm/km
A.C. Conductor resist. 50Hz and at 90 °C
0.0622 Ohm/km
Permissible short circuit current conductor 1s
57.8 kA
Thermal soil resistivity wet zone
1.5 °K.m/W

Mechanical characteristics

Mechanical characteristics

Cable flexibility
10xD
Mechanical resistance to impacts
Good

Usage characteristics

Usage characteristics

Bending factor when laying
20 (xD)
Laying depth, center of system
800 mm
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

Resources

Resources

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