Armored cable: a solid guardian for outdoor applications

1. Structural features of armored cables
As the name implies, armored cables are cables with one or more layers of metal sheaths (usually braided steel belts or steel wires) added to ordinary cables. This layer of sheaths is like armor, providing additional protection and support for the cables. In addition to the metal sheath, armored cables may also include an inner lining and an outer sheath, which further enhances the cable's waterproof, moisture-proof and corrosion-resistant capabilities. Such a structural design not only improves the mechanical strength of the cable, but more importantly, gives it excellent resistance to external force damage.

2. Manifestation of resistance to external force damage
Resist physical damage: During the laying process, the cable may encounter accidental scratches from sharp rocks, tree roots or construction tools. The metal sheath of the armored cable can effectively resist these physical damages, prevent damage to the internal conductor and insulation layer of the cable, and ensure stable transmission of power or signals.
Prevent animal bites: In outdoor environments, rats, rodents, etc. often damage cables. The hard outer shell of the armored cable can effectively prevent these animals from biting and reduce cable failures caused by animal activities.
Dealing with severe weather: Under extreme weather conditions such as wind, rain, ice and snow, ordinary cables are easily damaged by external force squeezing and pulling. The metal casing of the armored cable provides additional support, increases the flexibility and weather resistance of the cable, and enables it to maintain good working condition in harsh environments.
Long-term stability: For places that need to be exposed to the outdoors for a long time or are susceptible to external forces, such as along highways, bridges, tunnels, etc., armored cables can significantly extend their service life, reduce maintenance costs and frequency, and improve the economy and reliability of the overall system with their excellent ability to resist external damage.

3. Application scenarios and case analysis
Urban infrastructure: In urban subway and light rail systems, armored cables are widely used in power supply lines due to their wear-resistant and extrusion-resistant characteristics to ensure stable and reliable power supply for train operation.
Energy field: Renewable energy facilities such as wind farms and solar power stations are often located in remote and harsh areas. The application of armored cables can effectively resist the erosion of natural factors such as wind, sand, ice and snow, and ensure efficient transmission of energy.
Industry and construction: In heavy industrial environments such as chemical plants and steel mills, as well as in buildings such as high-rise buildings and underground parking lots, armored cables have become the first choice for electrical installations due to their excellent fire resistance, explosion resistance and anti-interference capabilities.