The reinforcement of conductors, such as ACSR, ACSS, and AACSR, to withstand mechanical forces is usually achieved through the integration of galvanized steel wires. Galvanization involves the application of a protective coating onto bare steel wires to prevent rusting and oxidation.
The Zinc - 5% Aluminium - Mischmetal alloy coating, commonly referred to as Galfan, represents a specialized protective layer applied to steel wires utilized within the core of overhead conductors. Galfan-Coated steel wires show a corrosion-resistance twice as galvanized steel wires.
Aluminium-clad steel wire is known as Alumoweld (AW). By integrating Aluminium-clad steel wires into the core of overhead conductors, as opposed to conventional galvanized wires, the risk of galvanic cell formation is significantly minimized, thus enhancing the conductor's operational lifespan.
Composite cores are the newest type of the cores used in overhead conductors. These cores are made of the mixture of carbon and glass fibers. The Composite Core finds its niche in High Temperature-Low Sag (HTLS) ACCC conductors, showcasing its exceptional capabilities.