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Australian Standard (Medium Voltage)

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

Application

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

CONDUCTOR: Plain circular compacted copper 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 0.524 0.668 0.141 16000 0.156 3.63 177 170 144
50 0.387 0.494 0.134 14000 0.171 3.48 212 201 173
70 0.268 0.342 0.127 13000 0.192 3.31 261 245 210
95 0.193 0.247 0.117 11000 0.216 3.16 317 293 251
120 0.153 0.196 0.112 10000 0.236 3.07 363 333 285
150 0.124 0.16 0.109 9500 0.254 3 411 373 319
185 0.0991 0.128 0.105 8800 0.274 2.93 469 421 366
240 0.0754 0.0981 0.101 7900 0.305 2.85 549 486 423

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 6.8 5.5 19.1 7.4 13 x 0.85 20.1 52.9 276
50 8 5.5 20.3 7.9 14 x 0.85 21.4 56.0 328
70 9.6 5.5 21.9 8.5 15 x 0.85 22.8 59.2 404
95 11.5 5.5 23.8 9.1 16 x 0.85 24.5 63.1 499
120 13.1 5.5 25.3 9.6 17 x 0.85 25.9 66.6 590
150 14.5 5.5 26.8 10.2 18 x 0.85 27.3 69.8 685
185 16.1 5.5 28.4 10.8 19 x 0.85 29.1 73.9 810
240 18.5 5.5 30.8 11.3 20 x 0.85 31.4 79.3 1005

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 0.524 0.668 0.141 16000 0.156 3.63 177 170 144
50 0.387 0.494 0.134 14000 0.171 3.48 212 201 173
70 0.268 0.342 0.127 13000 0.192 3.31 261 245 210
95 0.193 0.247 0.117 11000 0.216 3.16 317 293 251
120 0.153 0.196 0.112 10000 0.236 3.07 363 333 285
150 0.124 0.16 0.109 9500 0.254 3 411 373 319
185 0.0991 0.128 0.105 8800 0.274 2.93 469 421 366
240 0.0754 0.0981 0.101 7900 0.305 2.85 549 486 423
300 0.0601 0.0792 0.0988 7200 0.334 2.79      
400 0.047 0.0633 0.0944 6500 0.371 2.73      
500 0.0373 0.0518 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 6.8 5.5 19.1 11.3 20 x 0.85 22.4 54.6 300
50 8 5.5 20.3 16.5 29 x 0.85 23.6 57.3 360
70 9.6 5.5 21.9 22.7 40 x 0.85 25.2 60.9 460
95 11.5 5.5 23.8 22.7 40 x 0.85 27.1 65.2 560
120 13.1 5.5 25.3 22.7 40 x 0.85 28.6 68.9 650
150 14.5 5.5 26.8 22.7 40 x 0.85 30.1 72.2 750
185 16.1 5.5 28.4 22.7 40 x 0.85 31.7 75.9 855
240 18.5 5.5 30.8 22.7 40 x 0.85 34.1 81.5 1060
300 20.7 5.5 33.2 22.7 40 x 0.85 36.7 87.5 1270
400 23.6 5.5 36.1 22.7 40 x 0.85 39.6 94.1 1570
500 26.5 5.5 39 22.7 40 x 0.85 42.5 100.8 1910