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Helical armor rods, as a type of prefabricated helical protective rod, effectively protect conductors and optical cables.

Helical armor rods for overhead lines play a crucial protective role in high-voltage transmission lines and communication cables, and their material and weather resistance directly affect long-term stability. This article introduces the high-strength alloy, anti-corrosion coating, and application environment of helical armor rods, analyzes their performance under wind vibration, corrosion, and external force damage, and showcases the advantages of our products and our rapid delivery capabilities.

Overhead power and communication lines often face challenges such as wind-induced vibration, thermal expansion and contraction, external abrasion, and corrosion. These factors can cause cable damage, strand breakage, or even system failures. Helical armor rods for overhead line​, also called pre-formed armor rods, provide a simple and effective solution. By tightly wrapping around cables near support points, they distribute stress and absorb vibration, helping to significantly extend the service life of cables.

From the point of view of structure and material, the guard line is made of multiple strands of high-strength aluminum alloy prefabricated into a spiral structure. Each strand is heat-treated and formed, which can make the spiral arc and the outer diameter of the wire highly match. This preformed design is different from the traditional rigid wire protection fittings. Its flexible structure can closely fit the surface of the wire to avoid the local stress concentration of the wire caused by rigid contact.

The use of the flexible bonding characteristics of the pre-twisted structure to absorb vibration energy is the main method to reduce the vibration of the conductor. Dispersing vibration stress through precise installation location planning is an important way to improve the damping effect. Combining conductor parameters and environmental conditions to select the appropriate helical armor rods for overhead line model is the basis for effective damping.

​Protecting the wire from physical damage and environmental erosion is the most basic purpose of helical armor rods for overhead line. Improving the mechanical properties and operating stability of transmission lines is another purpose of helical armor rods for overhead line. Reducing the operation and maintenance costs and safety risks of transmission lines is an important purpose of helical armor rods for overhead line from the perspective of practical application.