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Australian Standard (Medium Voltage)

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

Application

19/33kV 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.,19/33kV 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

19/33kV 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 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
50 0.387 0.494 0.147 18000 0.133 4.05 212 200 173
70 0.268 0.342 0.139 16000 0.148 3.82 262 244 211
95 0.193 0.247 0.128 15000 0.165 3.61 317 292 256
120 0.153 0.196 0.123 14000 0.179 3.48 364 331 290
150 0.124 0.159 0.12 13000 0.191 3.38 411 372 325

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 8 25.5 9.6 17 x 0.85 26.2 66.9 415
70 9.6 8 27.1 10.2 18 x 0.85 27.6 70.4 499
95 11.5 8 29 10.8 19 x 0.85 29.3 74.5 600
120 13.1 8 30.6 11.3 20 x 0.85 30.7 77.8 690
150 14.5 8 32 11.9 21 x 0.85 32.1 81.0 795

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 0.387 0.494 0.147 18000 0.133 4.05 212 200 173
70 0.268 0.342 0.139 16000 0.148 3.82 262 244 211
95 0.193 0.247 0.128 15000 0.165 3.61 317 292 256
120 0.153 0.196 0.123 14000 0.179 3.48 364 331 290
150 0.124 0.159 0.12 13000 0.191 3.38 411 372 325
185 0.0991 0.128 0.116 12000 0.205 3.29      
240 0.0754 0.0978 0.111 11000 0.227 3.17      
300 0.0601 0.0788 0.107 9800 0.247 3.09      
400 0.047 0.0628 0.102 8900 0.272 3      
500 0.0373 0.0513 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 8 25.5 16.5 29 x 0.85 28.8 69.4 460
70 9.6 8 27.1 22.7 40 x 0.85 30.4 73 560
95 11.5 8 29 22.7 40 x 0.85 32.3 77.3 665
120 13.1 8 30.6 22.7 40 x 0.85 33.9 81.1 765
150 14.5 8 32 22.7 40 x 0.85 35.5 84.8 875
185 16.1 8 33.6 22.7 40 x 0.85 37.1 88.4 990
240 18.5 8 36 22.7 40 x 0.85 39.5 94.1 1190
300 20.7 8 38.4 22.7 40 x 0.85 41.9 99.4 1410
400 23.6 8 41.3 22.7 40 x 0.85 44.8 106.2 1730
500 26.5 8 44.2 22.7 40 x 0.85 47.7 112.9 2070