The cable shall be either single core or three core construction uncoated soft copper conductor as stated in the Technical Schedules.Three core cables shall comprise of compacted circular, oval or shaped conductors, bonded semiconducting screen, extruded solid dielectric insulation with a bonded semiconducting screen, layers of copper tape with a minimum 15 percent overlap, curves laid up with polypropylene fillers to produce a circular compact cable and held together with a copper woven fabric tape binder, extruded PVC bedding, steel wire or steel tape armour in accordance with the schedules and an extruded PVC over sheath. Three core cables shall of galvanized steel wired armoured (double steel tape armoured) type with minimum construction as following: copper conductor, XLPE insulation screen, metallic screen, binder tape, inner sheath, wire (tape) armour, outer PVC sheath.
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