This product is a standard figure-8 self-supporting aerial optical cable. Its structure combines the optical fiber unit with a high-carbon galvanized steel wire through a robust polyethylene sheath, forming an "8" shape. This design allows the cable to be directly fixed to utility poles or other supports without the need for additional suspension wires.
Our Figure 8 (figure-eight) steel wire armored fiber optic cable is the ideal solution for aerial installations. Its unique figure-eight structure integrates the fiber optic cable unit with high-strength galvanized steel wire in parallel, achieving a perfect combination of optical transmission and mechanical support.
This cable is designed to replace the complex process of laying separate suspension wires and fiber optic cables, significantly saving installation time and costs. The built-in steel wire armor layer provides superior tensile strength and compressive strength, effectively resisting wind vibration, ice loads, and external mechanical damage. Whether for long-haul trunk networks, rural broadband coverage, or complex industrial environments, it ensures stable and reliable signal transmission.
Figure 8 Armored Optical Cable Type:
Advantages:
* Integrated Design: The figure-eight structure combines the fiber optic cable and suspension wire into one unit, making installation as simple and quick as installing a regular overhead line.
* Superior Mechanical Protection: The central reinforcing core and steel wire armor provide extremely high tensile strength, excellent resistance to compression, impact, and rodents.
* Excellent Environmental Adaptability: The PE sheath offers excellent UV resistance, corrosion resistance, and moisture protection, making it suitable for various harsh outdoor climate conditions.
* High Cost-Effectiveness: Reduces installation material and labor costs, shortens project timelines, and achieves a lower total cost of ownership.
Applications:
* Long-distance communications and national backbone networks
* FTTx access networks and rural broadband projects
* Power system communication lines
* Railway and rail transit signaling systems
* Industrial control networks in mines, oil fields, etc.
Armored Fiber Optic Cables vs. Standard Fiber Optic Cables: Advantages Comparison
| Contrast dimension | armored optical cable | common optical cable | Summary of the advantages of armored optical cable |
| 1. Mechanical Protection | Additional armored layers, common types: • Steel strip armor: pressure-resistant and rodent-proof. • Steel wire armor: provides tensile and compressive strength, and lightning protection. • Aluminum strip armor: pressure-resistant, lightweight, and moisture-proof. • Stainless steel pipes: Exceptional pressure resistance and moisture-proof properties. | No metal armor layer, mainly relying on: • Plastic sheathing (e.g., PVC, LSZH, PE). • Non-metallic reinforcements (e.g., FRP, aramid yarn) provide tensile strength. | Provide a robust physical barrier that effectively resists penetration by sharp objects, crushing by heavy machinery, accidental construction damage, and gnawing by rodents (e.g., rats). |
| 2. Compression resistance | pole-strength The armor layer (particularly steel strips and wires) evenly distributes external pressure, significantly enhancing the optical cable's lateral pressure resistance and impact resistance. It can withstand soil pressure and construction compression in scenarios such as direct burial and conduit penetration. | relatively weak The fiber is mainly dependent on the sheath and internal structure, which is easy to cause damage or breakage under direct extrusion or heavy pressure. | It has a much better survival ability than ordinary optical cable in direct burial, complex underground environment and multi-compression area (such as pipe well). |
| 3. Tensile Strength | Extremely strong (especially with steel wire armor). The armor layer (especially the steel wire) itself is a strong load-bearing element, which can withstand extremely high long-term tensile force and short-term traction force. | relatively average. The tensile strength is limited due to reliance on internal aramid yarns or glass fiber reinforced plastic (FRP). | Ideal for long-distance aerial and vertical deployment (e.g., shafts), submarine cables, and scenarios requiring large-span or high-tension laying. |
| 4. Environmental Protection | Complete and robust • Moisture/chemical resistance: The armor layer (especially the aluminum strip) forms a tight longitudinal water barrier. • Lightning and electrical protection: The steel wire armor also functions as a ground wire, providing electromagnetic shielding and lightning protection. • Rodent-proof: The metal layer effectively prevents rodents and other animals from gnawing. | Basic protection. • The sheath provides basic moisture protection and mild chemical resistance. • Lightning protection/strong current: Non-metallic structure with no electromagnetic shielding. • Almost no protection against animal bites. | Capable of operating in extreme environments including thunderstorm zones, areas with strong electromagnetic interference, humid or corrosive conditions, and regions with severe rodent infestations. |
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