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TXRA 24kV 3x400Cu
Description
Description
Standards
-
ProductIEC 60228; IEC 60502-2; Nexans specification
User benefits:
Construction:
Conductor:
Round multiple wire, compressed copper conductor
Conductor screen:
Extruded layer of semi-conductive cross-linked polyethylene.
Insulation:
Extruded insulation of cross-linked polyethylene.
Insulation screen:
Extruded insulation of cross-linked polyethylene.
Twisting and bonding:
Three insulated conductors are twisted together and bonded with semiconducting bands.
Fillers are installed in the winding rooms.
If desired, fiber cables can also be inserted into the winding rooms.
Armouring:
A layer of galvanized steel wires.
Zinc wires can be inserted into the reinforcement if desired.
Outer corrosion protection:
Two layers of polypropylene yarn with bitumen.
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
23.5 mm
Diameter over insulation
38.2 mm
Nominal insulation thickness
5.5 mm
Diameter of steel wires
4.2 mm
Nominal outer diameter
98.9 mm
Approximate weight
21100 kg/km
Approximate weight in seawater
13200 kg/km
Conductor cross-section
400 mm²
Number of cores
3
Number of optical fibres
0
Electrical characteristics
Electrical characteristics
Max. DC resistance of the conductor at 20°C
0.047 Ohm/km
Maximum operating voltage
24 kV
Permissible current rating when buried
640 A
Permissible current rating in open air
735 A
Permissible current rating submerged in water, 15°C ambient temperature
695 A
Nominal phase capacitance
0.384 µF / km
Nominal inductance
0.295 mH/km
Permissible short circuit current conductor 1s
57.2 kA
Permissible short circuit current screen 1s
- kA
Rated Voltage Uo/U (Um)
12 / 20 (24) kV
Reactance at 50 Hz
0.093 Ohm/km
Zero sequence reactance at 50HZ
0.118 Ohm/km
Zero sequence resistance at 20°C
0.897 Ohm/km
Mechanical characteristics
Mechanical characteristics
Maximum pulling force by laying
100 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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