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12.7/22kV URD Triplex
12.7/22kV URD Triplex
12.7/22kV URD Triplex Individually Screened, Water Blocking Taped/HDPE Sheathed Aluminium Conductors, up to 3kA fault level
Read more- Nexans ref. : XLZA18TJ003
Description
Description
Standards
-
InternationalIEC 60228; IEC 60502-2
-
NationalAS/NZS 1125; AS/NZS 1429.1
Aluminium conductors, triple extruded conductor screen, insulation and insulation screen, copper wire screened, water blocking taped, HDPE sheathed, laid up 'Triplex' cables.
Characteristics
Characteristics
Construction characteristics
Construction characteristics
Armour type
-
Conductor material
Aluminum
Insulation
XLPE
Outer sheath
HDPE
Screen
Copper wire
Type of conductor
Stranded compacted
Dimensional characteristics
Dimensional characteristics
Approximate weight
220.0 kg/100m
Conductor cross-section
35 mm²
Conductor diameter
6.91 mm
Diameter over insulation
19.183 mm
Diameter over screen
22.483 mm
Nominal Duct Diameter
80 mm
Nominal Screen Area on each core
20.43 mm²
Nominal insulation thickness
5.5 mm
Nominal overall diameter of each phase cable
27 mm
Nominal overall diameter of triplex
58.2 mm
Number of screen wires (nb x mm Ø)
36 x 0.85 mm Ø
Electrical characteristics
Electrical characteristics
A.C. Conductor resist. 50Hz and at 90 °C
1.113 Ohm/km
Capacitance (All Main Cores - Screen)
0.157 µF / km
Charging current per phase
0.626 A/km
DC Resistance of the Screen at 20°C
0.89 Ohm/km
Dielectric loss per phase
31.8 W/km
Inductive reactance at 50Hz
0.149 Ohm/km
Insulation resistance at 20°C
15000 MOhm.km
Max. DC resistance of the conductor at 20°C
0.868 Ohm/km
Maximum electric stress
3.6 kV/mm
Permissible short circuit current conductor 1s
3.3 kA
Permissible short circuit current screen 1s
3.03 kA
Rated Voltage Uo/U (Um)
-
Zero sequence reactance at 50HZ
0.092 Ohm/km
Zero sequence resistance at 20°C
1.754 Ohm/km
Mechanical characteristics
Mechanical characteristics
Maximum Pulling Tension
5.25 kN
Usage characteristics
Usage characteristics
Minimum Bending Radius of Cable Bundle During Pulling
870 mm
Minimum Bending Radius of Cable Bundle Set in Position
580 mm
Minimum Bending Radius of Phase Cable During Pulling
680 mm
Minimum Bending Radius of Phase Cable Set in Position
410 mm
Resources
Resources
Current carrying capacity table (in Amps) - 12.7/22kV URD Triplex
Current carrying capacity table (in Amps) - 12.7/22kV URD Triplex| Conductor cross-section |
|
|
|
|
|
|---|---|---|---|---|---|
| mm² | Al | Al | Al | Al | Al |
| 35.0 | 134.0 | 142.0 | 101.0 | 136.0 | 112.0 |
|
In air touching |
|
In air spaced from surface |
|
In air enclosed |
|
Underground direct touching |
|
Underground ducts |
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