Shape design of pre-twisted wire

armor rod preformed The design of its twisted shape is the key. preformed armour rod is generally a spiral structure, which can be tightly wrapped around the contact wire, load-bearing cable and other components when armor rods is installed. Just like a screw is screwed into wood, the spiral shape increases the contact area between armor rods for acsr and the components. When the wire is subjected to various forces during railway operation, the increased contact area can better disperse these forces and prevent local excessive forces from damaging components.