Structure & Design

✅ The GYFY cable is built for durability and flexibility during installation. Its typical structure includes:
✅ Loose Tubes: Fibers are placed in high-modulus plastic tubes filled with a water-blocking compound to protect them.
✅ Central Strength Member: A Fiber Reinforced Plastic (FRP) rod provides tensile strength while keeping the cable non metallic and immune to electromagnetic interference.
✅ Stranding: The loose tubes are stranded around this central core.
✅ Sheath: A polyethylene (PE) outer jacket protects the cable.

Key Features & Benefits

✅ Small & Lightweight: Its compact design and low friction sheath are optimized for air-blown installation.
✅ Staged Deployment: You can install the micro-ducts first and blow in cables later as demand grows, reducing upfront costs.
✅ Ease of Maintenance: If an upgrade is needed, old cable can be blown out and replaced with new cable, maximizing duct reuse.
✅ Water Resistance: The semi-dry structure uses water-blocking materials to prevent water ingress and moisture penetration.

Primary Applications

✅ This cable is a workhorse for building and upgrading high-density networks where duct space is limited or costly to install:
✅ FTTH (Fiber to the Home): Used in the feeder and distribution segments to connect central offices to access points and users;
✅ Metropolitan Area Networks (MAN): Ideal for crowded city ducts where traditional cable pulling is difficult;
✅ Backbone Networks: Used for long-haul and inter-building communication;
✅ Harsh Environments: Its all-dielectric construction makes it suitable for areas with frequent lightning or severe electromagnetic interference, such as near power lines.

Important Considerations

✅ Duct Compatibility: GYFY cables are designed for specific micro-duct sizes. For instance, some micro versions (GCYFY) are optimized for 5/3.5mm or 7/5.5mm micro-ducts.
✅ Installation Limits: While straight runs can exceed 1,000 meters, routes with many bends or elevation changes will reduce the achievable blowing distance. The quality of the duct and the air-blowing equipment also play a major role.
✅ Standards: These cables typically comply with standards such as YD/T 1460 (Chinese) or IEC 60794 (International).