12.7/22kV Three Core Individual Screened & PVC Sheathed (Al Conductor)
Application
These 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 , they 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 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 | Buried Direct | Buried In Ducts(c) | |||||||
| mm2 | Ohm/km | Ohm/km | Ohm/km | MegOhm.km | uF x km | kV x mm | A | A | A |
| 35 | 0.868 | 1.11 | 0.14 | 15000 | 0.157 | 3.62 | 137 | 132 | 112 |
| 50 | 0.641 | 0.821 | 0.134 | 14000 | 0.172 | 3.47 | 164 | 156 | 134 |
| 70 | 0.443 | 0.568 | 0.124 | 13000 | 0.192 | 3.3 | 203 | 190 | 163 |
| 95 | 0.32 | 0.41 | 0.117 | 11000 | 0.214 | 3.17 | 246 | 227 | 195 |
| 120 | 0.253 | 0.325 | 0.113 | 10000 | 0.232 | 3.08 | 282 | 259 | 221 |
| 150 | 0.206 | 0.265 | 0.11 | 9700 | 0.25 | 3.01 | 319 | 289 | 247 |
| 185 | 0.164 | 0.211 | 0.106 | 9000 | 0.269 | 2.95 | 365 | 328 | 285 |
| 240 | 0.125 | 0.161 | 0.102 | 8100 | 0.298 | 2.87 | 428 | 379 | 330 |
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 | 5.5 | 19.2 | 7.4 | 13 x 0.85 | 20.1 | 52.9 | 208 |
| 50 | 8.1 | 5.5 | 20.3 | 7.9 | 14 x 0.85 | 21.3 | 55.7 | 236 |
| 70 | 9.6 | 5.5 | 21.9 | 8.5 | 15 x 0.85 | 22.8 | 59.2 | 273 |
| 95 | 11.4 | 5.5 | 23.6 | 9.1 | 16 x 0.85 | 24.5 | 63.1 | 318 |
| 120 | 12.8 | 5.5 | 25 | 9.6 | 17 x 0.85 | 25.9 | 66.3 | 358 |
| 150 | 14.2 | 5.5 | 26.4 | 10.2 | 18 x 0.85 | 27.3 | 69.5 | 402 |
| 185 | 15.7 | 5.5 | 27.9 | 10.8 | 19 x 0.85 | 29.0 | 73.4 | 456 |
| 240 | 18 | 5.5 | 30.3 | 11.3 | 20 x 0.85 | 31.4 | 79.0 | 540 |
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 | Buried Direct | Buried In Ducts(c) | |||||||
| mm2 | Ohm/km | Ohm/km | Ohm/km | MegOhm.km | uF x km | kV x mm | A | A | A |
| 35 | 0.868 | 1.11 | 0.14 | 15000 | 0.157 | 3.62 | 137 | 132 | 112 |
| 50 | 0.641 | 0.821 | 0.134 | 14000 | 0.172 | 3.47 | 164 | 156 | 134 |
| 70 | 0.443 | 0.568 | 0.124 | 13000 | 0.192 | 3.3 | 203 | 190 | 163 |
| 95 | 0.32 | 0.41 | 0.117 | 11000 | 0.214 | 3.17 | 246 | 227 | 195 |
| 120 | 0.253 | 0.325 | 0.113 | 10000 | 0.232 | 3.08 | 282 | 259 | 221 |
| 150 | 0.206 | 0.265 | 0.11 | 9700 | 0.25 | 3.01 | 319 | 289 | 247 |
| 185 | 0.164 | 0.211 | 0.106 | 9000 | 0.269 | 2.95 | 365 | 328 | 285 |
| 240 | 0.125 | 0.161 | 0.102 | 8100 | 0.298 | 2.87 | 428 | 379 | 330 |
| 300 | 0.1 | 0.13 | 0.0996 | 7400 | 0.327 | 2.81 | |||
| 400 | 0.0778 | 0.102 | 0.0951 | 6700 | 0.363 | 2.75 | |||
| 500 | 0.0617 | 0.0819 | 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 | 6.9 | 5.5 | 19.2 | 7.9 | 14 x 0.85 | 22.5 | 54.7 | 225 |
| 50 | 8.1 | 5.5 | 20.3 | 10.8 | 19 x 0.85 | 23.6 | 57.4 | 260 |
| 70 | 9.6 | 5.5 | 21.9 | 15.3 | 27 x 0.85 | 25.2 | 61 | 310 |
| 95 | 11.4 | 5.5 | 23.6 | 20.4 | 36 x 0.85 | 26.9 | 64.9 | 370 |
| 120 | 12.8 | 5.5 | 25 | 22.7 | 40 x 0.85 | 28.3 | 68.1 | 415 |
| 150 | 14.2 | 5.5 | 26.4 | 22.7 | 40 x 0.85 | 29.7 | 71.4 | 460 |
| 185 | 15.7 | 5.5 | 27.9 | 22.7 | 40 x 0.85 | 31.2 | 74.8 | 505 |
| 240 | 18 | 5.5 | 30.3 | 22.7 | 40 x 0.85 | 33.6 | 80.2 | 585 |
| 300 | 20.1 | 5.5 | 32.6 | 22.7 | 40 x 0.85 | 36.1 | 86 | 685 |
| 400 | 23 | 5.5 | 35.4 | 22.7 | 40 x 0.85 | 38.9 | 92.7 | 800 |
| 500 | 26.5 | 5.5 | 39 | 22.7 | 40 x 0.85 | 42.5 | 100.8 | 960 |
