ACSR bare conductors serve primarily in medium to high voltage overhead transmission and distribution lines requiring balanced electrical and mechanical performance. ACSR are the industry standard for power infrastructure spanning diverse terrains, including challenging topographies with long spans. ACSR offers cost-effective performance for rural electrification, suburban distribution, and transmission systems operating within standard temperature ranges.
ACSR are composed of a central steel core (class A galvanized) surrounded by one or more layers of 1350-H19 harddrawn aluminum wires. The steel core provides mechanical strength while the aluminum outer layers ensure optimal electrical conductivity. This construction allows operation at temperatures up to 75°C continuously, with emergency ratings up to 100°C for limited periods. The ratio of aluminum to steel varies by design to accommodate different strength and current-carrying requirements.