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TXRA 24kV 3x25Cu Zn
TXRA 24kV 3x25Cu Zn
Armoured sumbarine cable
Read more- Nexans ref. : 10265179
- Country ref. : 1008063
- EAN : 7045210127324
Description
Description
Standards
-
InternationalIEC 60228; IEC 60502-2; Nexans specification
Submarine cables for utilities.
Construstion:
Copper conductor
XLPE insulation with semiconductive inner and outer layer
Laied up with fillers in the interstices
Wrapped with semiconductiv tapes
Armoured with galvanized steel wires
Outer production of yarn and asfalt.
Characteristics
Characteristics
Construction characteristics
Construction characteristics
Conductor material
Annealed copper
Conductor shape
Circular compacted
Material of the inner semi-conductor
Extruded
Insulation
XLPE (Cross-linked Polyethylene)
Material of the external semi-conductor
Extruded
Armour type
Galvanised round steel wires
Conductor flexibility
Stranded class 2
Dimensional characteristics
Dimensional characteristics
Conductor diameter
6.0 mm
Diameter over insulation
18.5 mm
Nominal insulation thickness
5.5 mm
Diameter of steel wires
4.2 mm
Nominal outer diameter
61.1 mm
Approximate weight
6400 kg/km
Approximate weight in seawater
3700 kg/km
Conductor cross-section
25 mm²
Number of cores
3
Electrical characteristics
Electrical characteristics
Max. DC resistance of the conductor at 20°C
0.727 Ohm/km
Maximum operating voltage
24 kV
Permissible current rating when buried
150 A
Permissible current rating in open air
155 A
Permissible current rating submerged in water, 15°C ambient temperature
165 A
Nominal phase capacitance
0.166 µF / km
Nominal inductance
0.473 mH/km
Permissible short circuit current conductor 1s
3.9 kA
Permissible short circuit current screen 1s
2.6 kA
Rated Voltage Uo/U (Um)
12 / 20 (24) kV
Reactance at 50 Hz
0.137 Ohm/km
Zero sequence reactance at 50HZ
- Ohm/km
Zero sequence resistance at 20°C
- Ohm/km
Mechanical characteristics
Mechanical characteristics
Maximum pulling force by laying
22 kN
Usage characteristics
Usage characteristics
Max. conductor temperature in service
90 °C
Short-circuit max. conductor temperature
250 °C
Bending factor when laying
15 (xD)
Minimum installation temperature
-10 °C
Resources
Resources
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