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Australian Standard (Medium Voltage)

19/33kV Three Core Individual Screened & PVC/SWA/PVC Sheathed (Al Conductor)

Application

19/33kV Three Core Individual Screened & PVC/SWA/PVC Sheathed (Al Conductor) cables are designed to be used for the supply of electrical energy in fixed applications up to the rated voltages at a nominal power frequency between 49Hz and 61Hz.,19/33kV Three Core Individual Screened & PVC/SWA/PVC Sheathed (Al Conductor) cables are suitable for use in distribution installation, electrical power station , they are applied for installation, outdoors, underground where subject to mechanical damage.

Standard

AS/NZS 1429.1

Cable Construction

19/33kV Three Core Individual Screened & PVC/SWA/PVC Sheathed (Al Conductor)

CONDUCTOR: Plain circular compacted aluminium to AS/NZS1125 Maximum Continuous Operating Temperature: 90°C

CONDUCTOR SCREEN: Extruded semi-conducting compound, bonded to the insulation and applied in the same operation as the insulation

INSULATION: Cross Linked Polyethylene (XLPE) – standard Ethylene Propylene Rubber (EPR) – alternative

INSULATION SCREEN: Extruded semi-conducting compound

METALLIC SCREEN: Plain annealed copper wire: 10kA for nominal 1 second(HEAVY DUTY)

BEDDING: PVC

ARMOURING: Galvanised steel wires

SHEATH: Black 5V-90 polyvinyl chloride (PVC) – standard

Orange 5V-90 PVC inner plus black high density polyethylene (HDPE) outer – alternative Low smoke zero halogen (LSOH) – alternative

Technical Characteristics

Nominal conductor area Maximum Conductor DC resistance at 20°C Cond. AC resistance at 50Hz and 90°C Inductive reactance at 50Hz Insulation resistance at 20°C Conductor to screen capacitance Charging current per phase Diele
ctric loss per phrase
Maxi
mum diaele
ctric stress
ScreenDC resistance at 20°C ArmourDC resistance at 20°C Zero sequence resistance at 20°C Zero seq. react. at 50Hz
mm Ohm/km Ohm/km Ohm/km MegOhm. km µF x km A x km W x
km
kV x
mm
Ohm/km Ohm/km Ohm/km Ohm/km
50 0.641 0.821 0.147 18000 0.134 0.798 60.7 4.04 0.559 0.302 1.23 0.0985
70 0.443 0.568 0.136 16000 0.148 0.885 67.3 3.81 0.392 0.288 0.942 0.0879
95 0.32 0.41 0.129 15000 0.164 0.977 74.3 3.62 0.294 0.272 0.744 0.0812
120 0.253 0.325 0.124 14000 0.176 1.05 79.9 3.5 0.265 0.264 0.647 0.0766
150 0.206 0.264 0.12 13000 0.189 1.13 85.5 3.4 0.265 0.25 0.593 0.0731
185 0.164 0.211 0.117 12000 0.202 1.2 91.5 3.31 0.265 0.241 0.543 0.0694
240 0.125 0.161 0.112 11000 0.222 1.32 101 3.2 0.266 0.226 0.492 0.0647
300 0.1 0.13 0.108 10000 0.242 1.44 110 3.11 0.265 0.216 0.458 0.0614
400 0.0778 0.102 0.103 9100 0.267 1.59 121 3.02 0.265 0.202 0.423 0.0565
500 0.0617 0.0815 0.099 8100 0.297 1.77 135 2.93 0.265 0.215 0.419 0.0524

Cable Parameter

Sectional Area of Conductor Nom. Conductor Diameter Nom. Insulation Thickness Nom. Diamete Over insulation Screen Area on cores No. and Diamter of Screened Wires Nom. Diamete Over Screened Wires Nom. Diamete Over Bedding Nom. Diamete of Armour Nom. Diamete Over Armour Nom. Overall Diameter Approx. mass
mm2 mm mm mm mm2 no x mm mm mm mm mm mm kg/100m
50 8.1 8 25.6 32.3 19 x 0.85 28.9 66.6 3.15 72.9 80.2 850
70 9.6 8 27.2 46 27 x 0.85 30.5 70.3 3.15 76.6 84 935
95 11.4 8 28.9 61.3 36 x 0.85 32.2 74 3.15 80.3 87.9 1030
120 12.8 8 30.3 68.1 40 x 0.85 33.6 77.2 3.15 83.5 91.3 1100
150 14.2 8 31.7 68.1 40 x 0.85 35.2 80.9 3.15 87.2 95.2 1190
185 15.7 8 33.2 68.1 40 x 0.85 36.7 84.1 3.15 90.4 98.8 1270
240 18 8 35.5 68.1 40 x 0.85 39 89.4 3.15 95.7 104.4 1400
300 20.1 8 37.8 68.1 40 x 0.85 41.3 94.6 3.15 100.9 110 1540
400 23 8 40.7 68.1 40 x 0.85 44.2 101 3.15 107.3 116.7 1720
500 26.5 8 44.2 68.1 40 x 0.85 47.7 109 3.15 115.3 125.2 1960