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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. : XLZP20TH003
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
535.0 kg/100m
Conductor cross-section
70 mm²
Conductor diameter
9.6 mm
Diameter over insulation
21.9 mm
Diameter over screen
26.2 mm
Nominal Duct Diameter
100 mm
Nominal Screen Area on each core
68.7 mm²
Nominal insulation thickness
5.5 mm
Nominal overall diameter of each phase cable
30.9 mm
Nominal overall diameter of triplex
66.6 mm
Number of screen wires (nb x mm Ø)
48 x 1.35 mm Ø
Electrical characteristics
Electrical characteristics
A.C. Conductor resist. 50Hz and at 90 °C
0.342 Ohm/km
Capacitance (All Main Cores - Screen)
0.192 µF / km
Charging current per phase
0.765 A/km
DC Resistance of the Screen at 20°C
0.26 Ohm/km
Dielectric loss per phase
38.9 W/km
Inductive reactance at 50Hz
0.136 Ohm/km
Insulation resistance at 20°C
13000 MOhm.km
Max. DC resistance of the conductor at 20°C
0.268 Ohm/km
Maximum electric stress
3.3 kV/mm
Permissible short circuit current conductor 1s
10 kA
Permissible short circuit current screen 1s
10.19 kA
Rated Voltage Uo/U (Um)
-
Zero sequence reactance at 50HZ
0.08 Ohm/km
Zero sequence resistance at 20°C
0.531 Ohm/km
Mechanical characteristics
Mechanical characteristics
Maximum Pulling Tension
14.7 kN
Usage characteristics
Usage characteristics
Minimum Bending Radius of Cable Bundle During Pulling
1000 mm
Minimum Bending Radius of Cable Bundle Set in Position
670 mm
Minimum Bending Radius of Phase Cable During Pulling
770 mm
Minimum Bending Radius of Phase Cable Set in Position
460 mm
Resources
Resources
Current carrying capacity table (in Amps) - 12.7/22kV Triplex
Current carrying capacity table (in Amps) - 12.7/22kV TriplexConductor cross-section | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
mm² | Cu | Al | Cu | Al | Cu | Al | Cu | Al | Cu | Al |
70.0 | 254.0 | 199.0 | 269.0 | 210.0 | 192.0 | 150.0 | 248.0 | 194.0 | 209.0 | 163.0 |
In air touching |
In air spaced from surface |
In air enclosed |
Underground direct touching |
Underground ducts |
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