Polycab Extra High Voltage cables
Polycab offers Extra high Voltage Cable with Copper as well as Aluminum conductor in the range of 66 KV to 220 KV for underground installation for 3 Phase AC circuit. Polycab’s rich experience and advance technology made the cable superior to use for a service life of 40 years. These cables are mainly used to supply power from the power station to distribution unit or substation.
Polycab has set up it’s largest High Voltage cable manufacturing plant in Halol, Gujarat districts near Mumbai invested in state-of the art machines like Maillifer, Scolz, John Royale along with a most modern testing facility. The plant is equipped with high automation for material feeding to avoid contamination and electrical failure as well as high speed stranding machines for classic conductor preparation.
CONDUCTOR SCREEN
- The conductor screen consists of an extruded layer of semiconducting thermosetting compound which completely covers the whole surface of the conductor and firmly bonded to the XLPE insulation layer. A non hygroscopic semiconducting tape may be applied on the conductor if required.
INSULATION
- In-house developed high insulation resistance cross-linked polyethylene thermoset insulation compound.
NON-METALLIC INSULATION SCREEN
- An extruded layer of cross-linkable semi conducting compound, applied in triple extrusion with conductor screen and insulation extrusion, to eliminate micro voids and curing resulting longer life of cables
- Shield: Copper wires / Aluminium wires / Aluminium corrugated sheath / lead (or) lead alloy sheath to carry fault current, semiconducting tape may be applied for wire shielding
- Outer Sheath: In-house developed thermoplastic High Density polyethylene compound having low emission of smoke and corrosive gases when exposed to fire, semiconducting layer may be applied.
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