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Australian Standard (Medium Voltage)

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

Application

3.8/6.6kV Three Core Individual Screened & 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 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: 3kA for nominal 1 second(LIGHT DUTY) Plain annealed copper ire: 10kA for nominal 1 second(HEAVY DUTY)

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

LIGHT DUTY

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 Maximum diaelectric stress Current Ratings
Unenclosed In Air Unenclosed In Air Unenclosed In Air
mm2 Ohm/km Ohm/km Ohm/km MegOhm.km µF x km kV x mm A A A
35 0.868 1.11 0.12 8700 0.278 1.92 122 137 114
50 0.641 0.822 0.115 7800 0.309 1.87 95 166 137
70 0.443 0.569 0.106 6800 0.353 1.82 185 193 176
95 0.32 0.41 0.101 6000 0.4 1.77 222 238 198
120 0.253 0.325 0.0976 5500 0.439 1.74 257 270 225
150 0.206 0.265 0.0948 5100 0.477 1.72 293 306 254
185 0.164 0.211 0.0923 4700 0.518 1.7 333 342 292
240 0.125 0.162 0.0896 4300 0.561 1.62 390 394 331
300 0.1 0.13 0.0885 4100 0.582 1.5 447 447 378

Cable Parameter

LIGHT DUTY

Sectional Area of Conductor Nom. Conductor Diameter Nom. Insulation Thickness Nom. Diamete Over insulation Screen Area on Each core No. and Diamter of Screened Wires Nom. Diamete Over Screened Wires Nom. Overall Diameter Approx. mass
mm2 mm mm mm mm2 no x mm mm mm kg/100m
35 6.9 2.5 13 6.8   14.5 39.5 123
50 8.1 2.5 14.2 6.8   15.6 42.1 141
70 9.6 2.5 15.8 7.9   17.3 45.9 174
95 11.4 2.5 17.5 8.5   18.9 49.6 209
120 12.8 2.5 18.9 9.1   20.5 53.2 241
150 14.2 2.5 20.3 9.6   21.9 56.4 276
185 15.7 2.5 21.8 10.2   23.5 60.1 320
240 18 2.6 24.3 10.8   26.1 66.2 392
300 20.1 2.8 27 11.9   29.0 72.7 473

Technical Characteristics

HEAVY DUTY

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 Maximum diaelectric stress Current Ratings
Unenclosed In Air Unenclosed In Air Unenclosed In Air
mm2 Ohm/km Ohm/km Ohm/km MegOhm.km µF x km kV x mm A A A
35 0.868 1.11 0.12 8700 0.278 1.92 122 137 114
50 0.641 0.822 0.115 7800 0.309 1.87 95 166 137
70 0.443 0.569 0.106 6800 0.353 1.82 185 193 176
95 0.32 0.41 0.101 6000 0.4 1.77 222 238 198
120 0.253 0.325 0.0976 5500 0.439 1.74 257 270 225
150 0.206 0.265 0.0948 5100 0.477 1.72 293 306 254
185 0.164 0.211 0.0923 4700 0.518 1.7 333 342 292
240 0.125 0.162 0.0896 4300 0.561 1.62 390 394 331
300 0.1 0.13 0.0885 4100 0.582 1.5 447 447 378
400 0.0778 0.102 0.0857 3900 0.613 1.39      

Cable Parameter

HEAVY DUTY

Sectional Area of Conductor Nom. Conductor Diameter Nom. Insulation Thickness Nom. Diamete Over insulation Screen Area on Each core No. and Diamter of Screened Wires Nom. Diamete Over Screened Wires Nom. Overall Diameter Approx. mass
mm2 mm mm mm mm2 no x mm mm mm kg/100m
35 6.9 2.5 13 7.9 14 x 0.85 16.3 40.5 140
50 8.1 2.5 14.2 10.8 19 x 0.85 17.5 43.1 170
70 9.6 2.5 15.8 15.3 27 x 0.85 19.1 46.8 210
95 11.4 2.5 17.5 20.4 36 x 0.85 20.8 50.8 270
120 12.8 2.5 18.9 22.7 40 x 0.85 22.2 54.1 305
150 14.2 2.5 20.3 22.7 40 x 0.85 23.6 57.3 340
185 15.7 2.5 21.8 22.7 40 x 0.85 25.1 60.8 385
240 18 2.6 24.3 22.7 40 x 0.85 27.6 66.6 465
300 20.1 2.8 27 22.7 40 x 0.85 30.3 72.8 550
400 23 3 30.3 22.7 40 x 0.85 33.6 80.3 660