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12.7/22kV Triplex
12.7/22kV Triplex
12.7/22kV Triplex Individually Screened, Water Blocking Taped/HDPE Sheathed Stranded Conductors, up to 10kA fault level
Read more- Nexans ref. : XLZP19TH003
Description
Description
Standards
-
InternationalIEC 60228; IEC 60502-2
-
NationalAS/NZS 1125; AS/NZS 1429.1
Stranded compacted conductor, 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
Copper
Insulation
XLPE
Outer sheath
HDPE
Screen
Copper wire
Type of conductor
Stranded compacted
Dimensional characteristics
Dimensional characteristics
Approximate weight
405.0 kg/100m
Conductor cross-section
50 mm²
Conductor diameter
8.0 mm
Diameter over insulation
20.3 mm
Diameter over screen
24.6 mm
Nominal Duct Diameter
100 mm
Nominal Screen Area on each core
48.7 mm²
Nominal insulation thickness
5.5 mm
Nominal overall diameter of each phase cable
29.1 mm
Nominal overall diameter of triplex
62.7 mm
Number of screen wires (nb x mm Ø)
34 x 1.35 mm Ø
Electrical characteristics
Electrical characteristics
A.C. Conductor resist. 50Hz and at 90 °C
0.494 Ohm/km
Capacitance (All Main Cores - Screen)
0.171 µF / km
Charging current per phase
0.682 A/km
DC Resistance of the Screen at 20°C
0.37 Ohm/km
Dielectric loss per phase
34.7 W/km
Inductive reactance at 50Hz
0.144 Ohm/km
Insulation resistance at 20°C
14000 MOhm.km
Max. DC resistance of the conductor at 20°C
0.387 Ohm/km
Maximum electric stress
3.5 kV/mm
Permissible short circuit current conductor 1s
7.1 kA
Permissible short circuit current screen 1s
7.22 kA
Rated Voltage Uo/U (Um)
-
Zero sequence reactance at 50HZ
0.087 Ohm/km
Zero sequence resistance at 20°C
0.758 Ohm/km
Mechanical characteristics
Mechanical characteristics
Maximum Pulling Tension
10.5 kN
Usage characteristics
Usage characteristics
Minimum Bending Radius of Cable Bundle During Pulling
940 mm
Minimum Bending Radius of Cable Bundle Set in Position
630 mm
Minimum Bending Radius of Phase Cable During Pulling
730 mm
Minimum Bending Radius of Phase Cable Set in Position
440 mm
Resources
Resources
Current carrying capacity table (in Amps) - 12.7/22kV Triplex
Current carrying capacity table (in Amps) - 12.7/22kV Triplex| Conductor cross-section |
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|---|---|---|---|---|---|---|---|---|---|---|
| mm² | Cu | Al | Cu | Al | Cu | Al | Cu | Al | Cu | Al |
| 50.0 | 206.0 | 160.0 | 217.0 | 169.0 | 157.0 | 123.0 | 204.0 | 159.0 | 172.0 | 134.0 |
|
In air touching |
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In air spaced from surface |
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In air enclosed |
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Underground direct touching |
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Underground ducts |
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