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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. : XLZA25TJ003
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
415.0 kg/100m
Conductor cross-section
185 mm²
Conductor diameter
15.67 mm
Diameter over insulation
27.943 mm
Diameter over screen
31.243 mm
Nominal Duct Diameter
100 mm
Nominal Screen Area on each core
20.43 mm²
Nominal insulation thickness
5.5 mm
Nominal overall diameter of each phase cable
36.4 mm
Nominal overall diameter of triplex
78.4 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
0.211 Ohm/km
Capacitance (All Main Cores - Screen)
0.269 µF / km
Charging current per phase
1.073 A/km
DC Resistance of the Screen at 20°C
0.88 Ohm/km
Dielectric loss per phase
54.5 W/km
Inductive reactance at 50Hz
0.114 Ohm/km
Insulation resistance at 20°C
9000 MOhm.km
Max. DC resistance of the conductor at 20°C
0.164 Ohm/km
Maximum electric stress
3 kV/mm
Permissible short circuit current conductor 1s
17.5 kA
Permissible short circuit current screen 1s
3.03 kA
Rated Voltage Uo/U (Um)
-
Zero sequence reactance at 50HZ
0.059 Ohm/km
Zero sequence resistance at 20°C
1.049 Ohm/km
Mechanical characteristics
Mechanical characteristics
Maximum Pulling Tension
27.75 kN
Usage characteristics
Usage characteristics
Minimum Bending Radius of Cable Bundle During Pulling
1180 mm
Minimum Bending Radius of Cable Bundle Set in Position
730 mm
Minimum Bending Radius of Phase Cable During Pulling
910 mm
Minimum Bending Radius of Phase Cable Set in Position
550 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 |
| 185.0 | 362.0 | 384.0 | 272.0 | 336.0 | 288.0 |
|
In air touching |
|
In air spaced from surface |
|
In air enclosed |
|
Underground direct touching |
|
Underground ducts |
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