Buried 24-core optical cable

A 24-core GYTA53 fiber optic cable is designed for direct burial, offering armored protection, water resistance, and high durability for underground installations.

Cable Construction and Features

The 24-core GYTA53 fiber optic cable is built for direct burial and harsh outdoor environments. Key construction features include: Fiber Type: Single-mode (G652D) or multimode fibers, each 250 µm in diameter, embedded in gel-filled PBT loose tubes for stress-free movement and protection against mechanical strain. Central Strength Member: A phosphatized steel wire or metallic core provides tensile strength and prevents fiber damage during installation or ground movement.

Armor and Sheathing: The cable is double armored with corrugated steel tape and aluminum tape, and encased in a double polyethylene (PE) sheath, offering excellent crush resistance, rodent protection, and durability against environmental hazards. Waterproofing: Loose tubes are filled with a water-blocking compound, and gaps in the cable core are filled with water-blocking fillers to prevent moisture ingress. Stranding Technology: The loose tube stranding allows fibers to move freely within the tube, keeping them stress-free under longitudinal tension, which is critical for underground installations.

Applications

Direct Burial: Can be installed directly in trenches or using vibratory plows without additional ducting. Duct Installation: Suitable for underground ducts where rodent resistance and moisture protection are required. Telecommunications and Data Networks: Ideal for high-speed internet, long-distance data transmission, and telecom networks due to low attenuation and high bandwidth of single-mode fibers.

Advantages

Mechanical Protection: Armored layers protect against compression, impact, and rodent damage. Environmental Resistance: PE sheathing and water-blocking compounds ensure durability in wet or harsh soil conditions. Flexibility and Ease of Installation: Stranded GYTA53 structure provides flexibility for complex underground pathways.

Security and Reliability: Non-conductive fibers are immune to electromagnetic interference and lightning, reducing the risk of signal disruption.

Summary

A 24-core GYTA53 fiber optic cable is a robust solution for underground or direct-buried applications, combining mechanical strength, water resistance, and high-performance optical fibers. It is suitable for both single-mode and multimode networks, providing reliable, long-distance data transmission in challenging environments.