12.7/22kV Three Core Individual Screened & PVC Sheathed (Cu 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 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 ire: 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 | 0.524 | 0.668 | 0.141 | 16000 | 0.156 | 3.63 | 177 | 170 | 144 |
| 50 | 0.387 | 0.494 | 0.134 | 14000 | 0.171 | 3.48 | 212 | 201 | 173 |
| 70 | 0.268 | 0.342 | 0.127 | 13000 | 0.192 | 3.31 | 261 | 245 | 210 |
| 95 | 0.193 | 0.247 | 0.117 | 11000 | 0.216 | 3.16 | 317 | 293 | 251 |
| 120 | 0.153 | 0.196 | 0.112 | 10000 | 0.236 | 3.07 | 363 | 333 | 285 |
| 150 | 0.124 | 0.16 | 0.109 | 9500 | 0.254 | 3 | 411 | 373 | 319 |
| 185 | 0.0991 | 0.128 | 0.105 | 8800 | 0.274 | 2.93 | 469 | 421 | 366 |
| 240 | 0.0754 | 0.0981 | 0.101 | 7900 | 0.305 | 2.85 | 549 | 486 | 423 |
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 | 6.8 | 5.5 | 19.1 | 7.4 | 13 x 0.85 | 20.1 | 52.9 | 276 |
| 50 | 8 | 5.5 | 20.3 | 7.9 | 14 x 0.85 | 21.4 | 56.0 | 328 |
| 70 | 9.6 | 5.5 | 21.9 | 8.5 | 15 x 0.85 | 22.8 | 59.2 | 404 |
| 95 | 11.5 | 5.5 | 23.8 | 9.1 | 16 x 0.85 | 24.5 | 63.1 | 499 |
| 120 | 13.1 | 5.5 | 25.3 | 9.6 | 17 x 0.85 | 25.9 | 66.6 | 590 |
| 150 | 14.5 | 5.5 | 26.8 | 10.2 | 18 x 0.85 | 27.3 | 69.8 | 685 |
| 185 | 16.1 | 5.5 | 28.4 | 10.8 | 19 x 0.85 | 29.1 | 73.9 | 810 |
| 240 | 18.5 | 5.5 | 30.8 | 11.3 | 20 x 0.85 | 31.4 | 79.3 | 1005 |
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 | 0.524 | 0.668 | 0.141 | 16000 | 0.156 | 3.63 | 177 | 170 | 144 |
| 50 | 0.387 | 0.494 | 0.134 | 14000 | 0.171 | 3.48 | 212 | 201 | 173 |
| 70 | 0.268 | 0.342 | 0.127 | 13000 | 0.192 | 3.31 | 261 | 245 | 210 |
| 95 | 0.193 | 0.247 | 0.117 | 11000 | 0.216 | 3.16 | 317 | 293 | 251 |
| 120 | 0.153 | 0.196 | 0.112 | 10000 | 0.236 | 3.07 | 363 | 333 | 285 |
| 150 | 0.124 | 0.16 | 0.109 | 9500 | 0.254 | 3 | 411 | 373 | 319 |
| 185 | 0.0991 | 0.128 | 0.105 | 8800 | 0.274 | 2.93 | 469 | 421 | 366 |
| 240 | 0.0754 | 0.0981 | 0.101 | 7900 | 0.305 | 2.85 | 549 | 486 | 423 |
| 300 | 0.0601 | 0.0792 | 0.0988 | 7200 | 0.334 | 2.79 | |||
| 400 | 0.047 | 0.0633 | 0.0944 | 6500 | 0.371 | 2.73 | |||
| 500 | 0.0373 | 0.0518 | 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 | 6.8 | 5.5 | 19.1 | 11.3 | 20 x 0.85 | 22.4 | 54.6 | 300 |
| 50 | 8 | 5.5 | 20.3 | 16.5 | 29 x 0.85 | 23.6 | 57.3 | 360 |
| 70 | 9.6 | 5.5 | 21.9 | 22.7 | 40 x 0.85 | 25.2 | 60.9 | 460 |
| 95 | 11.5 | 5.5 | 23.8 | 22.7 | 40 x 0.85 | 27.1 | 65.2 | 560 |
| 120 | 13.1 | 5.5 | 25.3 | 22.7 | 40 x 0.85 | 28.6 | 68.9 | 650 |
| 150 | 14.5 | 5.5 | 26.8 | 22.7 | 40 x 0.85 | 30.1 | 72.2 | 750 |
| 185 | 16.1 | 5.5 | 28.4 | 22.7 | 40 x 0.85 | 31.7 | 75.9 | 855 |
| 240 | 18.5 | 5.5 | 30.8 | 22.7 | 40 x 0.85 | 34.1 | 81.5 | 1060 |
| 300 | 20.7 | 5.5 | 33.2 | 22.7 | 40 x 0.85 | 36.7 | 87.5 | 1270 |
| 400 | 23.6 | 5.5 | 36.1 | 22.7 | 40 x 0.85 | 39.6 | 94.1 | 1570 |
| 500 | 26.5 | 5.5 | 39 | 22.7 | 40 x 0.85 | 42.5 | 100.8 | 1910 |
