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50mm high voltage outdoor Underground power cable wire Standards
IEC 60502-2
50mm high voltage outdoor Underground power cable wire Application
The single core cables are designed for distribution of electrical power with nominal voltage Uo/U ranging from 1.8/3KV to 26/35KV and frequency 50Hz. They are suitable for installation mostly in power supply stations, indoors and in cable ducts, outdoors, underground and in water as well as for installation on cable trays for industries, switchboards and power stations.
50mm high voltage outdoor Underground power cable wire Construction
Conductor: Plain annealed copper or aluminium complying with IEC 60228 class 2.
Conductor Screen: extruded layer of semi-conducting crosslink compound
Insulation: XLPE
Insulaton Screen: extruded layer of semi-conducting crosslink compound
Metallic Screen: Double copper tape or copper wires applied helically with copper tae
Lapped Bedding : The lapped bedding consists of Polyester non woven fabrics .
Armour (for armoured cable): galvanized steel wire armour ,Steel tape armour
Outer Sheath: PVC, PE or LSZH can be offered as an option.
Installation and operation condition of cable
Operating Temperature: up to 90°C
Short Circuit Temperature( 5 seconds maximum duration ): 250°C
Bending Radius: 12 x OD
Current Rating Conditions:
Ground Temperature: 20°C
Ambient Temperature (air): 30°C
Depth of Soil: 0.8m
Thermal Resistance of Soil: 1.5K•m/W
Voltage:
| Rated Voltage Uo/U | Operating Voltage (Um) | Testing Voltage (rms) |
| 8.7/15KV | 17.5KV | 30.5KV |
Parameter Data
| Nom.Cross-Section Area | Aluminium Wire Armoured Cables | |||||
| Nom.Insulation Thickness | Armour Wire Size | Nom.Sheath Thickness | Approx .Overall Diameter | Approx. Weight | ||
| CU | AL | |||||
| mm2 | mm | mm | mm | mm | kg/km | mm2 |
| 35 | 4.5 | 1.6 | 1.9 | 29 | 1170 | 950 |
| 50 | 4.5 | 1.6 | 1.9 | 30 | 1340 | 1050 |
| 70 | 4.5 | 1.6 | 2 | 32 | 1610 | 1180 |
| 95 | 4.5 | 2 | 2.1 | 35 | 2020 | 1430 |
| 120 | 4.5 | 2 | 2.1 | 36 | 2310 | 1560 |
| 150 | 4.5 | 2 | 2.2 | 38 | 2660 | 1740 |
| 185 | 4.5 | 2 | 2.2 | 39 | 3070 | 1920 |
| 240 | 4.5 | 2 | 2.3 | 42 | 3750 | 2230 |
| 300 | 4.5 | 2.5 | 2.4 | 46 | 4590 | 2690 |
| 400 | 4.5 | 2.5 | 2.5 | 49 | 5550 | 3130 |
| 500 | 4.5 | 2.5 | 2.6 | 52 | 6590 | 3590 |
| 630 | 4.5 | 2.5 | 2.7 | 57 | 8060 | 3860 |
