185mm2 240mm2 300mm2 11kV 15kV 33kV Cu/XLPE/PVC power cable

185mm2 240mm2 300mm2 11kV 15kV 33kV Cu/XLPE/PVC power cable

 

Feature for Cu/XLPE/PVC cable 
Cu/XLPE/PVC cables are applied for installation indoors, outdoors, underground and cable rack.

 

CONSTRUCTION for Cu/XLPE/PVC cable

1).Conductor
Stranded compacted circular copper or aluminium conductors. All internal interstices of trie conductor rilled with water blocking compound which is specified to prevent ingress of water through conductor during storage, handling, installation and operating of the cable.

2)Conductor Screen
Extruded Semi-conducting compound. Minimum thickness 0.5 mm and the maximum volume resistivity of 5000 ohm-cn at 20° C and 25000 ohm-cm at 90° C.

3).Insulation
Extruded XLPE with high degree of cross-linking, free from contaminants, air voids and heat resistant by dry cured process.

 

The nominal thickness as shown in table 1.

 

 

Insulation Screen for Cu/XLPE/PVC cable 
Extruded Semi-conducting compound. Minimum thickness 0.5 mm and the maximum volume resistivity of 5000 ohm-cm at 20°C and 25000 ohm-cm at WC The screen is tightly fitted to insulation to exdude all air voids and can be easily hand stripped on site.

 

Conduction Water Blocking Layer
Semi-conductive water blocking tape provided over the insulation screen which will swell up under the influence ofmoisture or water.

 

Metallic Screen for Cu/XLPE/PVC cable
Copper wires applied over the conducting water blocking layer. Minimum cross section of concentric conductor as shown in table 2. Copper tape with minimum thickness 0.1 mm and maximum 0.3mm applied over copper wires.

 

Water Blocking Layer
Non-conducting water blocking tape provided the metallic screen which will swellup under ihe influence of moisture or water.

 

 

Armouring for Cu/XLPE/PVC cable
Galvanized flat steel wires with thickness 8.0 mm wrap helically over the surface of inner sheath minimum 90%. And galvanized Steel tape with nominal thickness 0.3 mm wrap helically minimum 50% cover the surface of the flat wires.

 

 

Outer Sheath  for Cu/XLPE/PVC cable
Extruded red PVC, suitable tar exposure to sun-light or other local atmospheric environments and for the operating temperature of the cable.