Conductor: The conductor consists of annealed copper wires compacted having a smooth circular shape for sizes upto 1000mm² cross-sectional area conforming to IEC:228 or IS :8130-84.

Note: In special cases, Aluminium Conductors are provided depending on specific need of the customer.

Beyond 1000mm² Milliken Conductors (segmental) are recommended.

Insulation Screen: The screen consists of smooth black semi-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 water blocking 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.

Seamless Lead Sheath: Extruded Seamless Lead Alloy 'E' Sheath having high fatigue endurance limit is provided. This is the most popular metallic sheath used worldwide.

Features:

• Hermetically seales-Corrosion resistant
• Mechanical protection
• Serves as an earthed metallic screen- To carry earth fault current
• Low sheath losses and higher current rating

Copper Wire Screen: Copper Wires are applied over the Lead Sheath to carry the necessary earth fault current alongside the Lead Sheath. This is particularly applicable where the requirement of earth fault current is high. This also helps in reducing the weight of the cable by avoiding excess lead thickness. A counter open helix copper tape is provided over the copper wires.

Note: Semi-conducting tape(s) is generally provided between the Lead and Copper Screen.

Jacketing: The jacket material consists of Extruded Black PVC (ST2) or High Density Polyethylene (HDE). A graphite coat is provided over the outer surface of the sheath.