Preformed spiral strands are generally made of metal wires or synthetic materials. Metal preformed strands typically use galvanized steel or aluminum alloy wires, offering excellent corrosion resistance and conductivity. Synthetic preformed strands are usually made of polyester fiber, which provides superior mechanical strength and durability.

The installation method of preformed spiral rods can be divided into the following steps:

The insulated cable downlead clamp is a device used to secure and protect the connection point between aerial cables and utility poles/towers.