XDALT-YT 3x1x 50 Cu/28 mm² 12/20kV
XDALT-YT 3x1x 50 Cu/28 mm² 12/20kV
Medium voltage 20 kV single-core cables with cross-linked PE insulation (XLPE) and aluminium screen tape.
Read more- Nexans ref. : 10507129
- EAN : 7611755557065
Description
Description
Standards
-
ProductHD 620; IEC 60502
-
NationalASE
Applications
- Underground distribution networks
- Pipe laying and ground laying
- Installation in electrical substations
Construction
- Round copper or aluminium conductor
- Extruded inner conductor
- Cross-linked PE insulation (XLPE)
- Extruded outer semi-conductor
- Semi-conductive swelling tape
- Laminated aluminium tape screen
- Black PE outer sheath, with 2 red longitudinal stripes
- Three-pole construction:
- Assembly of three monopolar cables
- Outer sheath in HDPE
Properties
- Longitudinal sealing by two layers of tape which swell in the presence of moisture and prevent the spread of water in the event of an injury to the sheath
- Radial sealing provided by the laminated aluminium tape
- Special abrasion resistant PE outer jacket with low shrinkage rate
- Cross-linked PE insulation (XLPE) with high dielectric strength and low losses
- Halogen free
Characteristics
Characteristics
Construction characteristics
Construction characteristics
Conductor flexibility
Class 2
Conductor material
Copper
Conductor shape
Round compacted
Dimensional characteristics
Dimensional characteristics
Conductor cross-section
50 mm²
Conductor diameter
8.2 mm
Average insulation thickness
4.8 mm
Diameter over insulation
18.8 mm
Screen section
28 mm²
Diameter over external conductor / metallic screen
21.7 mm
Average sheath thickness
1.5 mm
Nominal outer diameter
57.9 mm
Approximate weight
291.2 kg/100m
Number of cores
3
Electrical characteristics
Electrical characteristics
Rated Voltage Uo/U (Um)
12/20 kV
Maximum operating voltage
24 kV
Max. DC resistance of the conductor at 20°C
0.387 Ohm/km
I max. @ 60°C-buried, trefoil, joined, earthing 1pt, LF1
153 A
I max. @ 60°C-buried, trefoil, joined, earthing 2pts, LF1
152 A
I max. @ 60°C-in the air inside, trefoil, joined, earthing 1pt, LF1
172 A
I max. @ 60°C-in the air inside, trefoil, joined, earthing 2pts, LF1
172 A
I max. @ 90°C-buried, trefoil, joined, earthing 1pt, LF1
197 A
I max. @ 90°C-buried, trefoil, joined, earthing 2pts, LF1
196 A
I max. @ 90°C-in the air inside, trefoil, joined, earthing 1pt, LF1
245 A
I max. @ 90°C-in the air inside, trefoil, joined, earthing 2pts, LF1
245 A
Impedance at 50Hz and 90°C
0.47 Ohm/km
Nominal inductance
0.43 mH/km
Nominal phase capacitance
0.201 µF / km
Permissible short circuit current conductor 0.5s
10.3 kA
Permissible short circuit current conductor 1s
7.4 kA
Permissible short circuit current screen 0.5s
3.3 kA
Permissible short circuit current screen 1s
2.4 kA
Phase reactance 50 Hz - trefoil formation
0.135 Ohm/km
Mechanical characteristics
Mechanical characteristics
Maximum pulling force by laying
6 kN
Usage characteristics
Usage characteristics
Minimum installation temperature
-5 °C
Bending factor when laying
12 (xD)
Bending factor when installed
8 (xD)
Maximum operating temperature
90 °C
Short-circuit max. conductor temperature
250 °C
Resources
Resources
Documentation
Accessories - XDALT-YT 3x1x50 Cu
pdf — 152.3 kB
Declaration of Performance
- Declaration of Performance n� : 1000391-CHCD
- Certification Date : 3/1/23
- AVCP (Assessment and Verification of Constancy of Performance) : System 4
- Declared performance : Fca
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