3.8/6.6kV Three Core SWA

Description

Description

Standards

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

Construction

  • Stranded compacted conductor
  • Triple extruded conductor screen
  • XLPE Insulated and insulation screen
  • Copper wire screened
  • Steel wire armoured
  • PVC sheathed.

Characteristics

Characteristics

Construction characteristics

Construction characteristics

Armour type
Galvanized steel wires
Conductor material
Copper
Insulation
XLPE
Material of bedding
PVC
Outer sheath
PVC
Screen
Copper wire
Type of conductor
Stranded compacted

Dimensional characteristics

Dimensional characteristics

Approximate weight
515.0 kg/100m
Conductor cross-section
50 mm²
Conductor diameter
8.0 mm
Diameter over armour
45.97 mm
Diameter over insulation
14.1 mm
Diameter over screen
17.427 mm
Nominal Duct Diameter
80 mm
Nominal Screen Area on each core
49.37 mm²
Nominal armour wire diameter
2.5 mm
Nominal diameter over bedding
40.97 mm
Nominal insulation thickness
2.5 mm
Nominal overall diameter
51.4 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
Armour DC resistance at 20°C
0.616 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
0.115 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
0.135 Ohm/km
Zero sequence resistance at 20°C
1.076 Ohm/km

Mechanical characteristics

Mechanical characteristics

Maximum Pull Tension of Armour
31 kN
Maximum Pull Tension of Conductor
10 kN

Usage characteristics

Usage characteristics

Minimum Bend Radius - During Installation (under Tension)
920 mm
Minimum Bend Radius - Installed
620 mm

Resources

Resources

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

Current carrying capacity table (in Amps) - 3.8/6.6kV Three Core SWA
Conductor cross-section
mm² Cu Al Cu Al Cu Al Cu Al Cu Al
50.0 193.0 150.0 206.0 160.0 145.0 113.0 201.0 156.0 162.0 126.0
In air touching (3 core)
In air spaced (3 core)
In air enclosed (3 core)
Underground Direct Buried (3 core)
Underground ducts (3 core)

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