GSW (Galvanized Steel Wire) conductor is a specialized steel core wire featuring high tensile strength and enhanced corrosion protection, engineered for use in overhead transmission applications. It is manufactured from high-carbon steel and coated with a uniform hot-dip galvanized zinc layer, forming a robust structure that ensures long-term mechanical reliability and surface durability.

This conductor is designed to serve as the central strengthening element in composite cables such as ACSR, where it provides critical load-bearing capacity without compromising system integrity. The zinc coating resists corrosion from moisture, salt, and pollutants, making GSW suitable for harsh climates including coastal zones, industrial corridors, and desert regions.

With tensile strength up to 1400 MPa, GSW performs reliably under heavy mechanical stress, such as wind loading and long-span tension. Its dimensional stability under temperature variation helps minimize conductor sag and structural strain.

GSW is favored in transmission line designs requiring high strength-to-weight ratio, extended lifespan, and reduced maintenance cycles. It supports efficient grid upgrades without major infrastructure changes.