High-quality Pre-twisted Wire Needs To Have High Mechanical Strength.

armour rod in transmission line Essentially, pre-forms several metal wires into a stranded wire using a specific helical structure—this structure facilitates uniform tension distribution and reduces localized stress concentration. armor rods conductor (or the wire used in pre-stranded clamps): If made of aluminum alloy, its tensile strength should not be lower than a certain standard; if made of aluminum-clad steel or high-carbon steel wire, the tensile strength must reach an even higher value to meet load requirements.

The robust metal wire provides fundamental strength, and the proper pre-stranding structure ensures load distribution and balanced internal stress. This structure allows the stranded wire to stably bear sufficient tension under multiple loads such as tension, wind load, and vibration, making it less prone to breakage, slippage, or loosening.