Applications Used as bare overhead transmission cable and as primary and secondary distribution cable. ACSR/AW offers the same strength characteristics as ACSR, along with slightly greater ampacity and resistance to corrosion due to the aluminum cladding of the steel core wires. It provides greater protection where corrosive conditions are severe. Specifications SURAL bare ACSR/AW meets or exceeds the following ASTM specifications: B-230 Aluminum Wire, 1350-H19 for Electrical Purposes B-502 Aluminum-Clad Steel Core Wire for Aluminum Conductors, Aluminum-Clad Steel Reinforced B-549 Aluminum Conductors, Concentric-Lay-Stranded Aluminum-Clad Steel Reinforced (ACSR/AW) Construction Aluminum alloy 1350-H19 wires, concentrically stranded about an aluminum-clad steel core (aluminum thickness of not less than 10% of nominal wire radius).