This document specifies the mechanical and electrical properties of round and formed wires for equivalent diameters up to the values as per Table 3 for aluminium and aluminium alloys and as per Table 4 for thermal resistant alloys. This document is applicable to aluminium and aluminium alloy wires for the manufacture of concentric lay overhead electrical stranded conductors with or without gap(s) for power transmission purposes. The various materials and their designations are listed in Table 1. For calculation purposes, the values listed in Table 1 shall be used.