Send An Email12.7-22kV-XLPE insulated medium-voltage power cables are typically employed for power distribution networks and auxiliary power cables in diverse environments. The integral armouring permits direct burial to prevent accidental electric shock and damage. The AS/NZS 12.7-22kV-XLPE type constitutes medium-voltage power cables manufactured to Australian/New Zealand Standard AS/NZS 1429.1. They are suitable for fixed installation within power supply networks in both indoor and outdoor environments, and may be laid in cable ducts, on cable trays, or directly buried underground. Suitable for high fault current systems rated up to 10kA/1 second. Constructions with higher rated fault current capabilities are available upon request.
Construction:
Conductor: Copper or aluminium, stranded round, compact stranded round.
Insulation: XLPE or TR-XLPE or EPR.
Metal shielding: Copper wire shielding (CWS), Copper tape shielding (CTS).
Sheath: Corrugated aluminium sheath (CAS), Corrugated copper sheath (CCU), Corrugated stainless steel (CSS).
Armouring: Aluminium wire armouring (AWA), Steel wire armouring (SWA), Stainless steel wire armouring (SSWA).
Termite protection: Polyamide nylon sheath, Double brass tape (DBT), Cypermethrin.
Installation cables: 12D (PVC only) 15D (HDPE).
During installation: 18D (PVC only) 25D (HDPE).
Temperature range:
Minimum installation temperature: 0°C
Maximum operating temperature: +90°C
Minimum operating temperature: -25°C
Custom designed Medium Voltage cables:
For efficiency and longevity, every MV cable should be tailored to the installation but there are times when a truly bespoke cable is needed. Our MV cable experts can work with you to design a solution that matches your requirements. Most commonly, customisations affect the area size of the metallic screen, which can be adjusted to change the short circuit capacity and earthing provisions.
In every case, the technical data is provided to demonstrate suitability and the specification honed for manufacture. All customised solutions are subject to enhanced testing in our MV Cable Testing Facility.
12.7/22kV-Power cable
| Cores x Nominal Area | Conductor diameter (Approx.) | Nominal Insulation Thickness | Approx. CWS area on each core | Nominal Thickness of PVC Sheath | Overall Cable diameter (+/- 3.0) | Short Circuit rating of Conductor/ CWS | Cable Weight (Approx.) | Max. Conductor DC Resistance at 20 °C |
| No. x mm2 | mm | mm | mm2 | mm | mm | kA for 1sec | kg/km | (Ω/km) |
| 1C x 35 | 7.0 | 5.5 | 24 | 1.8 | 27.5 | 5 / 3 | 1200 | 0.524 |
| 1C x 50 | 8.1 | 5.5 | 24 | 1.8 | 28.6 | 7.2 / 3 | 1367 | 0.387 |
| 1C x 70 | 9.7 | 5.5 | 79 | 1.9 | 32.1 | 10 / 10 | 2130 | 0.268 |
| 1C x 95 | 11.4 | 5.5 | 79 | 2.0 | 33.8 | 13.6 / 10 | 2421 | 0.193 |
| 1C x 120 | 12.8 | 5.5 | 79 | 2.0 | 35.2 | 17.2 / 10 | 2687 | 0.153 |
| 1C x 150 | 14.2 | 5.5 | 79 | 2.1 | 36.6 | 21.5 / 10 | 3018 | 0.124 |
| 1C x 185 | 16.1 | 5.5 | 79 | 2.1 | 38.3 | 26.5 / 10 | 3395 | 0.0991 |
| 1C x 240 | 18.5 | 5.5 | 79 | 2.2 | 40.9 | 34.3 / 10 | 3979 | 0.0754 |
| 1C x 300 | 20.6 | 5.5 | 79 | 2.3 | 43.2 | 42.9 / 10 | 4599 | 0.0601 |
| 1C x 400 | 23.6 | 5.5 | 79 | 2.4 | 46.6 | 57.2 / 10 | 5613 | 0.047 |
| 1C x 500 | 26.6 | 5.5 | 79 | 2.5 | 49.8 | 71.5 / 10 | 6621 | 0.0366 |
| 1C x 630 | 30.2 | 5.5 | 79 | 2.6 | 53.6 | 90.1 / 10 | 7918 | 0.0283 |
