ACSR conductors are composed of several aluminium and
steel wires. Steel wires are always central and
aluminium wires stranded over steel wire strands. Steel
wires are galvanized (zinc-coated) and mostly composed
of 1,7,19 or 37 wires. Wire outer diameters of steel and
aluminium will be the same or different but all steel wires
have the same diameter as well aluminium wires have the
same diameter. The function of galvanized steel wires is a
suspension of the conductor on the line.