Reasons Why Pre-twisted Wires Must Not Cross

In power transmission and cable structure design, conductor armor rod preformed, as a component composed of multiple spirally combined conductors, must strictly adhere to engineering specifications in its structural arrangement, prohibiting conductor crossings or chaotic entanglement.

The manufacturing process of conductor preformed armour rod involves spirally twisting multiple fine filaments around a central conductor in a specific direction and pitch. This arrangement balances internal stress and forms a uniform circumferential cross-section. If the wires in conductor armor rods cross, the local cross-section often exceeds the design shape, leading to uneven stress and localized deformation. Under long-term stress, this irregularity may cause premature fatigue or breakage of individual strands in conductor armor rods for acsr, affecting the overall mechanical properties of the stranded conductor.

armor rods transmission line is often used to reinforce conductors or as a connector accessory, and its fit with the main line also requires a neat and orderly geometric shape. Cross-overlapping conductors will cause localized stress concentration during pressurization or stranding, resulting in uneven distribution of winding force and increasing the difficulty of later maintenance.