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Australian Standard (Medium Voltage)

3.8/6.6kV Three Core Individual Screened & PVC/SWA/PVC Sheathed (Al Conductor)

Application

3.8/6.6kV 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.,3.8/6.6kV 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

3.8/6.6kV 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 Charg
ing current per phase		 Diel
ectric loss per phrase		 Maxi
mum diael
ectric stress		 Scree
nDC resist
ance at 20°C		 ArmourDC resistance at 20°C Zero sequ
ence
resis
tance at 20°C		 Zero seq. react.
at 50Hz
mm2 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
35 0.868 1.11 0.12 8700 0.278 0.332 5.04 1.92 0.761 0.643 1.91 0.0709
50 0.641 0.822 0.115 7800 0.309 0.369 5.61 1.87 0.559 0.616 1.52 0.0658
70 0.443 0.569 0.106 6800 0.353 0.422 6.41 1.82 0.393 0.559 1.14 0.0574
95 0.32 0.41 0.101 6000 0.4 0.478 7.26 1.77 0.295 0.521 0.884 0.0528
120 0.253 0.325 0.0976 5500 0.439 0.524 7.96 1.74 0.265 0.487 0.769 0.0497
150 0.206 0.265 0.0948 5100 0.477 0.569 8.66 1.72 0.266 0.465 0.714 0.0472
185 0.164 0.211 0.0923 4700 0.518 0.618 9.4 1.7 0.265 0.438 0.66 0.0449
240 0.125 0.162 0.0896 4300 0.561 0.67 10.2 1.62 0.265 0.312 0.556 0.0424
300 0.1 0.13 0.0885 4100 0.582 0.695 10.6 1.5 0.265 0.288 0.515 0.0415
400 0.0778 0.102 0.0857 3900 0.613 0.731 11.1 1.39 0.265 0.261 0.473 0.039
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
35 6.9 2.5 13 23.8 14 x 0.85 16.3 38.6 2.5 43.6 48.6 370
50 8.1 2.5 14.2 32.3 19 x 0.85 17.5 41.1 2.5 46.1 51.5 410
70 9.6 2.5 15.8 46 27 x 0.85 19.1 44.7 2.5 49.7 55.3 480
95 11.4 2.5 17.5 61.3 36 x 0.85 20.8 48.6 2.5 53.6 59.4 555
120 12.8 2.5 18.9 68.1 40 x 0.85 22.2 51.6 2.5 56.6 62.6 615
150 14.2 2.5 20.3 68.1 40 x 0.85 23.6 54.9 2.5 59.9 66.1 665
185 15.7 2.5 21.8 68.1 40 x 0.85 25.1 58.3 2.5 63.3 69.7 735
240 18 2.6 24.3 68.1 40 x 0.85 27.6 63.9 3.15 70.2 77.3 940
300 20.1 2.8 27 68.1 40 x 0.85 30.3 70 3.15 76.3 83.7 1070
400 23 3 30.3 68.1 40 x 0.85 33.6 77.2 3.15 83.5 91.4 1240