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Purpose‑built for rigorous outside‑plant deployments, this stranded loose‑tube fiber optic cable delivers superior mechanical performance for challenging outdoor networking projects. Housed inside a gel‑filled PBT loose tube are four G.652D single‑mode optical fibers. A central metallic strength member (PE‑jacketed steel wire as an optional variant) forms the backbone; loose tubes and filling elements are helically stranded around it to build a dense, round cable core. Water‑blocking filling compound permeates the core, followed by a slim PE inner jacket. Longitudinally wrapped corrugated PSP steel tape reinforces the inner layer, and a weather‑proof black PE outer jacket finishes the complete cable structure. It achieves 3000 N short‑term tensile load capacity together with 3000 N/100 mm compression resistance. Its functional temperature window covers ‑40 °C to +60 °C. It is well‑suited for direct‑burial, conduit and overhead aerial projects that demand solid reinforcement and dependable moisture sealing.
1.Superior Pull‑Resistant Performance for Extended‑Reach Field Deployment
Supported by central steel‑wire reinforcement and helical stranded loose‑tube architecture, the cable reaches 3000 N short‑term tension rating. Its outstanding load‑bearing capability permits long‑distance cable pulling without inflicting mechanical stress upon fiber cores. It fits demanding scenarios including river‑span overhead crossings, hillside routing and lengthy underground conduit sections. The sturdy build stays stable when facing frequent tension surges that commonly occur throughout field laying operations.
2.Enhanced Compressive Performance for Underground Harsh‑Condition Deployment
Boasting 3000 N/100 mm anti‑crush capability, the cable copes with concentrated point pressure, rock extrusion force and ground subsidence stress. Longitudinal corrugated PSP tape works in synergy with central steel strength member to realize dual‑sided mechanical shielding. It is an optimal solution for underground laying across stony landforms, railway crossing corridors and industrial premises, where ordinary fiber variants are prone to crushing and permanent failure.
3.Multi‑Tier Moisture Barrier Construction Against Water Ingress
Hydrophobic gel fills the inner space of PBT loose tubes, while water‑swellable fill materials fully occupy gaps inside the cable core. The outer PSP steel tape further hinders moisture migration. The whole assembly satisfies IEC 794‑1‑F5B water‑blocking criteria. Thanks to triple‑level defense, stable transmission can be sustained inside water‑logged conduits or high‑humidity surroundings. It avoids attenuation drift and fiber deterioration to guarantee steady performance over long service cycles.
4.Streamlined Stranded‑Core Structure for 4‑Fiber Configuration
Even equipped with heavy‑duty reinforcement, the cable keeps a slim outer dimension of 11.2 mm and unit weight at 140 kg/km. Its stranded‑core layout delivers good routing flexibility: static minimum bend radius equals 10 × OD, dynamic loaded bend radius is 20 × OD. The compact profile simplifies routing inside congested cable trays, manhole chambers and pre‑existing narrow conduits. UV‑resistant black PE outer jacket also offers chemical tolerance to secure long‑term outdoor service.
5.Broad Thermal Adaptability for Variable Extreme Climatic Zones
Reliable operation is maintained across ‑40 °C ~ +60 °C working range; permissible on‑site installation temperature spans from ‑10 °C up to +60 °C. Such wide thermal tolerance adapts to frigid cold‑region sites, high‑temperature desert zones and all intermediate climate conditions. The polyethylene outer jacket retains sufficient pliability under freezing circumstances and resists excessive softness under scorching heat, preventing jacket cracking or distortion and ensuring consistent signal throughput all year round.
G652D fiber information
■ Mode field diameter (1310nm):9.2μm±0.4μm.
■ Mode field diameter (1550nm):10.4μm±0.8μm.
■ Cladding diameter:125μm±1.0μm.
■ Coating diameter:245μm±7μm.
■ Cut off wavelength of cabled fiber (λcc): ≤1260μm
■ Attenuation at 1310nm:≤0.35dB/km.
■ Attenuation at 1550nm:≤0.21dB/km.
■ Bending loss at 1550nm (100 turns, 30mm radius):≤0.05dB.
■ Dispersion in the range 1288 to 1339nm：≤3.5ps/(nm·km).
■ Dispersion at 1550nm:≤18ps/(nm·km).
■ Dispersion slope at zero dispersion wavelength:≤0.092ps/(nm2·km).
