| Conductor : The conductor
consist of annealed copper wires compacted having a smooth circular
shape for sizes upto 1000 mm cross- sectional area conforming to
IEC : 60226 or IS 8130-84.
Note :
1. ln special cases, Aluminium Conductors are provided depending
on specific need of the customer.
2. Beyond1000 mm2 Milliken Conductors (segmental) are
recommended
Conductor screen : The conductor screen consists
of a layer of smooth black extruded semi - conducting XLPE compound
firmly bonded with the insulation. This eliminates electrical discharges
at the interface between conductor and insulation.
Insulation : The insulation consists of super
clean XLPE compound. This extrusion process is conducted in clinically
clean environment. The insulation Thickness conforms to IS : 7093
{Part3}.
Insulation Screen : The screen consists of smooth
black serni-conducting XLPE compound firmly bonded with a smooth
interface with the insulation. The conductor screen, insulation
and insulation screen and extruded simultaneously in Dry- Cure Process
Moisture Barrier : To make the cable longitudinally
watertight a semi- conducting tape is applied over the core, to
prevent water penetration in the cable. The tape is of non - woven
material which has non - biodegradable characteristics.
Copper Wire Screen : Copper Wires are applied
to carry the necessary earth fault current. A counter open helix
copper tape is provided over the copper wires.
Poly - Aluminium Foil : Aluminium Foil coated
with Polyethylene used longitudinally as a oisture barrier is designed
for making cable lighter in weight.
Jacketing : The Jacket material consists of Extruded
Black PVC (ST2) or High Density Polyethylene (HOPE). A graphite
coat is provided over the outer surface of the sheath.
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