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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
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 |