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Australian Standard (Medium Voltage)

19/33kV Three Core Individual Screened & PVC Sheathed (Al Conductor)

Application

19/33kV 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., 19/33kV 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

19/33kV 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
mm Ohm/km Ohm/km Ohm/km MegOhm.km µF x km kV x mm A A A
50 0.641 0.821 0.147 18000 0.134 4.04 164 155 134
70 0.443 0.568 0.136 16000 0.148 3.81 203 189 163
95 0.32 0.41 0.129 15000 0.164 3.62 246 226 198
120 0.253 0.325 0.124 14000 0.176 3.5 283 257 226
150 0.206 0.264 0.12 13000 0.189 3.4 319 288 252

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
50 8.1 8 25.6 9.6 17 x 0.85 26.1 66.7 322
70 9.6 8 27.2 10.2 18 x 0.85 27.6 70.4 367
95 11.4 8 28.9 10.8 19 x 0.85 29.3 74.2 418
120 12.8 8 30.3 11.3 20 x 0.85 30.7 77.5 463
150 14.2 8 31.7 11.9 21 x 0.85 32.1 80.7 510

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
50 0.641 0.821 0.147 18000 0.134 4.04 164 155 134
70 0.443 0.568 0.136 16000 0.148 3.81 203 189 163
95 0.32 0.41 0.129 15000 0.164 3.62 246 226 198
120 0.253 0.325 0.124 14000 0.176 3.5 283 257 226
150 0.206 0.264 0.12 13000 0.189 3.4 319 288 252
185 0.164 0.211 0.117 12000 0.202 3.31      
240 0.125 0.161 0.112 11000 0.222 3.2      
300 0.1 0.13 0.108 10000 0.242 3.11      
400 0.0778 0.102 0.103 9100 0.267 3.02      
500 0.0617 0.0815 0.099 8100 0.297 2.93      

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
50 8.1 8 25.6 10.8 19 x 0.85 28.9 69.5 355
70 9.6 8 27.2 15.3 27 x 0.85 30.5 73.1 415
95 11.4 8 28.9 20.4 36 x 0.85 32.2 77 480
120 12.8 8 30.3 22.7 40 x 0.85 33.6 80.2 525
150 14.2 8 31.7 22.7 40 x 0.85 35.2 83.9 580
185 15.7 8 33.2 22.7 40 x 0.85 36.7 87.3 635
240 18 8 35.5 22.7 40 x 0.85 39 92.9 730
300 20.1 8 37.8 22.7 40 x 0.85 41.3 98.1 820
400 23 8 40.7 22.7 40 x 0.85 44.2 104.8 955
500 26.5 8 44.2 22.7 40 x 0.85 47.7 112.9 1120