High Tension (HT) Power Cables are designed with XLPE insulation and PVC or polyethylene sheathing, making them highly reliable for power transmission and distribution applications. These cables are manufactured for voltage grades up to 33 kV unearthed and are available in three-core configurations. They come with copper or aluminium conductors and feature XLPE or TR-XLPE insulation, along with extruded semiconductive compound screening either bonded or strippable with metallic screens of copper tape or copper wire with helix tape. For added mechanical strength and protection, the cables offer armouring options such as aluminium round wire or flat strip, as well as in flat strip, round wire, or tape. The sheathing materials include PVC, fire-retardant and low-smoke variants (FR, FRLSH, LSZH, ZHFR), and HDPE (PE-ST-7). Fillers are provided in PVC or polypropylene (solid or hollow) for compactness and stability. The size range covers of three-core cables are available up to 500 sq.mm (33 kV unearthed), ensuring suitability across diverse high-voltage applications.
