Industrial Cables  

Australian Standard (Medium Voltage)

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

Application

3.8/6.6kV Single Core 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., they are suitable for use in distribution installation, electrical power station , 3.8/6.6kV Single Core Screened & PVC Sheathed (Al Conductor) cables 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 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 cond
uctor area
Maximum Conductor DC resistance at 20°C Cond. AC resistance at 50Hz and 90°C Inductive reactance at 50Hz and 90°C Insulation resistance at 20°C Conduc
tor to screen capac
itance
Maximum diaelectric stress Current Ratings
Trefoil or Flat touching flat spaced Trefoil touc
hing
flat touc
hing
flat spaced Unenc
losed
In Air
Buried Direct Buried In Ducts (c)
mm2 Ohm/km Ohm/km Ohm/km Ohm/km Ohm/km Ohm/km MegOhm. km µF x km kV x mm A A A
35 0.868 1.11 1.11 0.138 0.154 0.199 8700 0.278 1.92 131 139 132
50 0.641 0.821 0.821 0.135 0.15 0.196 7800 0.309 1.87 160 167 159
70 0.443 0.568 0.568 0.125 0.14 0.185 6800 0.353 1.82 196 201 192
95 0.32 0.41 0.41 0.118 0.134 0.179 6000 0.4 1.77 237 245 227
120 0.253 0.325 0.325 0.114 0.129 0.175 5500 0.439 1.74 273 270 256
150 0.206 0.265 0.264 0.111 0.126 0.171 5100 0.477 1.72 313 305 289
185 0.164 0.211 0.211 0.108 0.123 0.169 4700 0.518 1.7 356 340 320
240 0.125 0.161 0.161 0.104 0.119 0.165 4300 0.561 1.62 421 394 372
300 0.1 0.13 0.129 0.102 0.118 0.163 4100 0.582 1.5 486 444 419
400 0.0778 0.102 0.101 0.0989 0.114 0.16 3900 0.613 1.39 578 516 491

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 17.6   14.5 20.0 54
50 8.1 2.5 14.2 17.6   15.6 21.1 60
70 9.6 2.5 15.8 17.6   17.3 22.8 69
95 11.4 2.5 17.5 17.6   19.1 24.6 80
120 12.8 2.5 18.9 17.6   20.5 26.0 89
150 14.2 2.5 20.3 17.6   21.9 27.4 99
185 15.7 2.5 21.8 17.6   23.5 29.2 114
240 18 2.6 24.3 17.6   26.1 31.8 135
300 20.1 2.8 27 17.6   29.0 34.9 160
400 23 3 30.3 17.6   32.1 38.2 200

Technical Characteristics

HEAVY DUTY

Nominal cond
uctor area
Maximum Conductor DC resistance at 20°C Cond. AC resistance at 50Hz and 90°C Inductive reactance at 50Hz and 90°C Insulation resistance at 20°C Conductor to screen capaci
tance
Maximum diaelectric stress Current Ratings
Trefoil or Flat touch
ing
flat spaced Trefoil touc
hing
flat touc
hing
flat spaced Unenc
losed In Air
Buried Direct Buried In Ducts (c)
mm2 Ohm/km Ohm/km Ohm/km Ohm/km Ohm
/km
Ohm
/km
MegOhm. km µF x km kV x mm A A A
35 0.868 1.11 1.11 0.138 0.154 0.199 8700 0.278 1.92 131 138 132
50 0.641 0.821 0.821 0.135 0.15 0.196 7800 0.309 1.87 160 167 158
70 0.443 0.568 0.568 0.125 0.14 0.185 6800 0.353 1.82 197 201 192
95 0.32 0.41 0.41 0.118 0.134 0.179 6000 0.4 1.77 240 245 218
120 0.253 0.325 0.325 0.114 0.129 0.175 5500 0.439 1.74 275 268 246
150 0.206 0.265 0.264 0.111 0.126 0.171 5100 0.477 1.72 314 302 273
185 0.164 0.211 0.211 0.108 0.123 0.169 4700 0.518 1.7 356 336 299
240 0.125 0.161 0.161 0.104 0.119 0.165 4300 0.561 1.62 419 386 342
300 0.1 0.13 0.129 0.102 0.118 0.163 4100 0.582 1.5 480 434 380
400 0.0778 0.102 0.101 0.0989 0.114 0.16 3900 0.613 1.39 566 501 432

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 22.7 40 x 0.85 16.3 20.4 60
50 8.1 2.5 14.2 32.9 23 x 1.35 18.5 22.6 76
70 9.6 2.5 15.8 45.8 32 x 1.35 20.1 24.2 97
95 11.4 2.5 17.5 61.5 43 x 1.35 21.8 25.9 120
120 12.8 2.5 18.9 68.7 48 x 1.35 23.2 27.3 140
150 14.2 2.5 20.3 68.7 48 x 1.35 24.6 28.7 150
185 15.7 2.5 21.8 68.7 48 x 1.35 26.1 30.4 160
240 18 2.6 24.3 68.7 48 x 1.35 28.6 33.1 185
300 20.1 2.8 27 68.7 48 x 1.35 31.3 36 210
400 23 3 30.3 68.7 48 x 1.35 34.6 39.5 245