Hard Drawn Bare Copper Wire

High Strength for Long Spans

 

This hard-drawn bare copper wire is manufactured by Jiangsu Jingwei. We have been producing cables for 39 years. This product is designed for long-span overhead transmission lines. It differs significantly from soft copper wire. It is made from high-purity copper and processed through a hard-drawing cold-working process, which increases material density. The resulting structure provides high rigidity and excellent tensile strength. This hard drawn bare copper wire does not sag over time like conventional wire.

No Sagging Under Load

 

The conductor is made of solid hard bare copper with no coating or insulation. Its tensile strength is much higher than that of soft copper wire. Under long-term stress, it does not stretch, sag, or creep. Its mechanical stability is among the best in its class. Electrical conductivity remains high, with low resistivity, high current-carrying capacity, and low power loss. This hard drawn bare copper wire complies with IEC standards for overhead line applications.

This product offers high rigidity, high tensile strength, and strong resistance to wind and ice loading. It is suitable for river crossings, valley spans, and long-distance transmission lines. Because of its high mechanical strength, longer span distances can be achieved with fewer supporting towers, helping reduce overall construction costs. A natural oxide layer forms on the surface, providing corrosion resistance. This hard drawn bare copper wire is widely used in main transmission lines and power grid tower systems.