Industrial Cables  

Australian Standard (Medium Voltage)

12.7/22kV Three Core Individual Screened & PVC Sheathed (Al Conductor)

Application

12.7/22kV 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.,12.7/22kV 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

12.7/22kV Three Core Individual Screened & 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: 3kA for nominal 1 second(LIGHT DUTY) Plain annealed copper wire: 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 0.14 15000 0.157 3.62 137 132 112
50 0.641 0.821 0.134 14000 0.172 3.47 164 156 134
70 0.443 0.568 0.124 13000 0.192 3.3 203 190 163
95 0.32 0.41 0.117 11000 0.214 3.17 246 227 195
120 0.253 0.325 0.113 10000 0.232 3.08 282 259 221
150 0.206 0.265 0.11 9700 0.25 3.01 319 289 247
185 0.164 0.211 0.106 9000 0.269 2.95 365 328 285
240 0.125 0.161 0.102 8100 0.298 2.87 428 379 330

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 5.5 19.2 7.4 13 x 0.85 20.1 52.9 208
50 8.1 5.5 20.3 7.9 14 x 0.85 21.3 55.7 236
70 9.6 5.5 21.9 8.5 15 x 0.85 22.8 59.2 273
95 11.4 5.5 23.6 9.1 16 x 0.85 24.5 63.1 318
120 12.8 5.5 25 9.6 17 x 0.85 25.9 66.3 358
150 14.2 5.5 26.4 10.2 18 x 0.85 27.3 69.5 402
185 15.7 5.5 27.9 10.8 19 x 0.85 29.0 73.4 456
240 18 5.5 30.3 11.3 20 x 0.85 31.4 79.0 540

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 0.14 15000 0.157 3.62 137 132 112
50 0.641 0.821 0.134 14000 0.172 3.47 164 156 134
70 0.443 0.568 0.124 13000 0.192 3.3 203 190 163
95 0.32 0.41 0.117 11000 0.214 3.17 246 227 195
120 0.253 0.325 0.113 10000 0.232 3.08 282 259 221
150 0.206 0.265 0.11 9700 0.25 3.01 319 289 247
185 0.164 0.211 0.106 9000 0.269 2.95 365 328 285
240 0.125 0.161 0.102 8100 0.298 2.87 428 379 330
300 0.1 0.13 0.0996 7400 0.327 2.81      
400 0.0778 0.102 0.0951 6700 0.363 2.75      
500 0.0617 0.0819 0.0915 5900 0.407 2.69      

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 5.5 19.2 7.9 14 x 0.85 22.5 54.7 225
50 8.1 5.5 20.3 10.8 19 x 0.85 23.6 57.4 260
70 9.6 5.5 21.9 15.3 27 x 0.85 25.2 61 310
95 11.4 5.5 23.6 20.4 36 x 0.85 26.9 64.9 370
120 12.8 5.5 25 22.7 40 x 0.85 28.3 68.1 415
150 14.2 5.5 26.4 22.7 40 x 0.85 29.7 71.4 460
185 15.7 5.5 27.9 22.7 40 x 0.85 31.2 74.8 505
240 18 5.5 30.3 22.7 40 x 0.85 33.6 80.2 585
300 20.1 5.5 32.6 22.7 40 x 0.85 36.1 86 685
400 23 5.5 35.4 22.7 40 x 0.85 38.9 92.7 800
500 26.5 5.5 39 22.7 40 x 0.85 42.5 100.8 960