The Extension Link (extension ring) is a connecting fitting used in overhead power lines to increase the length of insulator strings or adjust hardware assembly positions. It provides extra spacing between components, facilitating proper clearance and alignment. Made of high-strength malleable cast iron or forged steel, all ferrous parts are hot-dip galvanized for excellent corrosion resistance. Stainless steel cotter pins and bolts secure the connection. The oval or round design allows free rotation and articulation under tension. Compact, durable, and easy to install, the extension link ensures reliable load transfer in both suspension and tension applications, making it an essential accessory for transmission and distribution line hardware assemblies.
