Class A Galvanized Steel Strand
Concentric-lay stranded conductors made of Zinc-coated Steel wires.
Commonly used for overhead ground/shield wire, guys and messengers, and for steel core in ACSR conductors.
ASTM A363 – This specification covers concentric lay stranded steel wire composed of three or seven wires with a Class A coating specifically intended for use as overhead ground/shield wires for transmission lines. ASTM A475 – This specification covers the five grades of class A zinc-coated steel wire strand, Utilities, Common, Siemens-Martin, High-Strength, and Extra High-Strength, suitable for use as guy and messenger wires. ASTM B498 – This specification covers round, class A zinc-coated, steel core wire used for the reinforcement of ACSR conductors.