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Australian Standard (Medium Voltage)

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

Application

19/33kV 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., 19/33kV Single Core 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 Single Core 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: Plain annealed copper wire: 3kA for nominal 1 second(LIGHT DUTY) Plain annealed copper wire: 10kA for nominal 1 second(HEAVY DUTY)

METALLIC SCREEN: Plain annealed copper wire: 10kA for nominal 1 second

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 Condu
ctor 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 capacit
ance
Maximum diaelectric stress Current Ratings
Trefoil or Flat touch
ing
flat spaced Trefoil touch
ing
flat touch
ing
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
50 0.641 0.821 0.821 0.163 0.178 0.223 18000 0.134 4.04 190 167 146
70 0.443 0.568 0.568 0.151 0.166 0.212 16000 0.148 3.81 236 204 177
95 0.32 0.41 0.41 0.143 0.159 0.204 15000 0.164 3.62 287 244 211
120 0.253 0.325 0.325 0.138 0.154 0.199 14000 0.176 3.5 330 277 245
150 0.206 0.264 0.264 0.134 0.149 0.195 13000 0.189 3.4 374 309 274
185 0.164 0.211 0.211 0.13 0.145 0.191 12000 0.202 3.31 430 350 309
240 0.125 0.161 0.161 0.125 0.14 0.186 11000 0.222 3.2 508 405 358
300 0.1 0.129 0.129 0.121 0.136 0.182 10000 0.242 3.11 581 456 402
400 0.0778 0.101 0.101 0.116 0.131 0.177 9100 0.267 3.02 677 521 459
500 0.0605 0.0797 0.0789 0.111 0.126 0.172 8100 0.297 2.93 787 593 544
630 0.0469 0.0629 0.0618 0.108 0.123 0.168 7300 0.329 2.86 914 674 617
800 0.0367 0.0507 0.0492 0.104 0.119 0.165 6600 0.366 2.8 1057 759 694
1000 0.0298 0.039 0.0387 0.1 0.115 0.161 5600 0.427 2.72 1197 841 768

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 20 36 x 0.85 26.1 32.3 103
70 9.6 8 27.2 20 36 x 0.85 27.6 33.8 114
95 11.4 8 28.9 20 36 x 0.85 29.3 35.7 128
120 12.8 8 30.3 20 36 x 0.85 30.7 37.1 140
150 14.2 8 31.7 20 36 x 0.85 32.1 38.7 154
185 15.7 8 33.2 20 36 x 0.85 33.8 40.4 171
240 18 8 35.5 20 36 x 0.85 36.2 43 197
300 20.1 8 37.8 20 36 x 0.85 38.2 45.2 223
400 23 8 40.7 20 36 x 0.85 41.3 48.6 261
500 26.5 8 44.2 20 36 x 0.85 44.4 51.9 304
630 29.9 8 48 20 36 x 0.85 48 55.7 358
800 34.2 8 52.3 20 36 x 0.85 52.6 60.5 428
1000 40.2 8 59.5 21 37 x 0.85 56.7 64.6 505

Technical Characteristics

HEAVY DUTY

Nominal conduc
tor 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 capac
itance
Maximum diaelectric stress Current Ratings
Trefoil or Flat touc
hing
flat spaced Trefoil touch
ing
flat touch
ing
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
50 0.641 0.821 0.821 0.163 0.178 0.223 18000 0.134 4.04 191 168 146
70 0.443 0.568 0.568 0.151 0.166 0.212 16000 0.148 3.81 238 204 178
95 0.32 0.41 0.41 0.143 0.159 0.204 15000 0.164 3.62 288 243 215
120 0.253 0.325 0.325 0.138 0.154 0.199 14000 0.176 3.5 331 275 244
150 0.206 0.264 0.264 0.134 0.149 0.195 13000 0.189 3.4 374 307 272
185 0.164 0.211 0.211 0.13 0.145 0.191 12000 0.202 3.31 429 346 306
240 0.125 0.161 0.161 0.125 0.14 0.186 11000 0.222 3.2 505 400 353
300 0.1 0.129 0.129 0.121 0.136 0.182 10000 0.242 3.11 575 448 395
400 0.0778 0.101 0.101 0.116 0.131 0.177 9100 0.267 3.02 668 509 449
500 0.0605 0.0797 0.0789 0.111 0.126 0.172 8100 0.297 2.93 772 576 528
630 0.0469 0.0629 0.0618 0.108 0.123 0.168 7300 0.329 2.86 891 650 595
800 0.0367 0.0507 0.0492 0.104 0.119 0.165 6600 0.366 2.8 1023 726 663
1000 0.0298 0.039 0.0387 0.1 0.115 0.161 5600 0.427 2.72 1152 799 728
1200 0.0247 0.0327 0.0323 0.0981 0.113 0.159 5200 0.461 2.68      

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 32.9 23 x 1.35 29.9 34.4 125
70 9.6 8 27.2 45.8 32 x 1.35 31.5 36.2 150
95 11.4 8 28.9 61.5 43 x 1.35 33.2 37.9 180
120 12.8 8 30.3 68.7 48 x 1.35 34.6 39.5 200
150 14.2 8 31.7 68.7 48 x 1.35 36.2 41.1 215
185 15.7 8 33.2 68.7 48 x 1.35 37.7 42.8 230
240 18 8 35.5 68.7 48 x 1.35 40 45.1 255
300 20.1 8 37.8 68.7 48 x 1.35 42.3 47.8 285
400 23 8 40.7 68.7 48 x 1.35 45.2 50.9 320
500 26.5 8 44.2 68.7 48 x 1.35 48.7 54.6 370
630 29.9 8 48 68.7 48 x 1.35 52.5 58.6 430
800 34.2 8 52.3 68.7 48 x 1.35 56.8 63.4 500
1000 40.2 8 59.5 68.7 48 x 1.35 64 70.8 600
1200 43.8 8 63.5 68.7 48 x 1.35 68 75 680