ACSR Conductor Used as Bare Overhead Transmission

Aluminum Conductors Steel Reinforced (ACSR) consists of a galvanized steel core of 1 wire,7 wires or 19 wires surrounded by concentric layers of aluminum wire, when a conductor with a high current carrying capacity and comparatively low strength is required,special constructions are available with high aluminum content. It's used as bare overhead transmission cable and as primary and secondary distribution cable. ACSR offers optimal strength for line design.Variable steel core stranding enables desired strength to be achieved without sacrificing capacit.

Resistance is calculated using ASTM standard increments of stranding and metal conductivity of 61.2% IACS for EC (1350) and 8% IACS for steel. AC (60Hz) resistance includes current dependent hysteresis loss factor for 1 and 3 layer constructions.Current ratings are based on 75 ºC conductor temperature, 25 ºC ambient, 2ft/s wind, 96/watts/sq.ft sun, 0.5 coefficients of emissivity and absorption.