3.8/6.6kV Three Core

Description

Description

Standards

  • International
    IEC 60228; IEC 60502-2
  • National
    AS/NZS 1125; AS/NZS 1429.1

Construction

  • Stranded compacted conductor
  • Semi-conductive insulation screen
  • Copper wire screen
  • XLPE insulation
  • Semi-conductive conductor screen
  • PVC sheath

Characteristics

Characteristics

Construction characteristics

Construction characteristics

Armour type
-
Conductor material
Copper
Insulation
XLPE
Outer sheath
PVC
Screen
Copper wire
Type of conductor
Stranded compacted

Dimensional characteristics

Dimensional characteristics

Approximate weight
275.0 kg/100m
Conductor cross-section
50 mm²
Conductor diameter
8.0 mm
Diameter over insulation
14.127 mm
Diameter over screen
17.427 mm
Nominal Duct Diameter
65 mm
Nominal Screen Area on each core
49.37 mm²
Nominal insulation thickness
2.5 mm
Nominal overall diameter
43.0 mm
Number of screen wires (nb x mm Ø)
29 x 0.85 mm Ø

Electrical characteristics

Electrical characteristics

A.C. Conductor resist. 50Hz and at 90 °C
0.494 Ohm/km
Capacitance (All Main Cores - Screen)
0.308 µF / km
Charging current per phase
0.368 A/km
DC Resistance of the Screen at 20°C
0.37 Ohm/km
Dielectric loss per phase
5.59 W/km
Inductive reactance at 50Hz
0.104 Ohm/km
Insulation resistance at 20°C
7800 MOhm.km
Max. DC resistance of the conductor at 20°C
0.387 Ohm/km
Maximum electric stress
1.9 kV/mm
Permissible short circuit current conductor 1s
7.1 kA
Permissible short circuit current screen 1s
7.32 kA
Rated Voltage Uo/U (Um)
-
Zero sequence reactance at 50HZ
0.045 Ohm/km
Zero sequence resistance at 20°C
1.486 Ohm/km

Mechanical characteristics

Mechanical characteristics

Maximum Pulling Tension
10.5 kN

Usage characteristics

Usage characteristics

Minimum Bend Radius - During Installation (under Tension)
770 mm
Minimum Bend Radius - Installed
520 mm

Resources

Resources

Current carrying capacity table (in Amps) - 3.8/6.6kV Three Core

Current carrying capacity table (in Amps) - 3.8/6.6kV Three Core
Conductor cross-section
mm² Cu Al Cu Al Cu Al Cu Al Cu Al
50.0 191.0 148.0 205.0 159.0 140.0 109.0 204.0 158.0 159.0 123.0
In air touching (3 core)
In air spaced (3 core)
In air enclosed (3 core)
Direct Buried (3 core)
Underground ducts (3 core)

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