Standard / Solid Copper conductor , PE/PVC/HR-PV/XLPE/ Silicon /FR-XLPE Insulated each pair/Triad laid up shielded individually with Mylar / Drain Wire/AL Mylar, all pair / Triads then laid up together overall shielded with Mylar / Drain Wire/AL Mylar, PE/PVC/FRLS/PVC ST2/ LSOH Inner Sheathed Unarmoured / GI Steel round Wire/ Strip/ GI Steel Wire braided ( Armoured), PVC/ FR/FRLS/ PVC T2/ LSOH Outer Sheathed From 2 Pair/ Triad to 61 pair/ Triad in Sizes 0.5 sq. mm to 2.5 sq.mm