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This figure-8 self-supporting aerial optical cable is specifically designed for direct overhead installation without separate messenger wires. It contains eight G.652D single-mode fibers placed in PBT loose tubes filled with water-resistant gel. A central steel wire serves as the metallic strength member, around which the tubes and fillers are stranded into a compact circular core. A PSP steel tape is applied over the core, and then this assembly is integrated with stranded support wires and completed with a black PE sheath to form a figure-8 structure. The cable offers short-term tensile strength of 8000 N and crush resistance of 1000 N/100mm. Operating temperature ranges from -40 °C to +60 °C. Ideal for long-span aerial deployments in telecom and FTTH networks.
1. Integrated Figure-8 Design Eliminates Separate Messenger Wires
This cable combines optical fibers and a steel support strand in a single figure-8 PE sheath, eliminating the need for separate messenger wires and lashing. Installation time is reduced by up to 40% compared to traditional lashing methods. The integrated design also lowers material costs and simplifies procurement, making it the most economical choice for long-span aerial deployments in telecom and FTTH networks.
2. Extremely High Tensile Strength for Long-Span Aerial Runs
With a short-term tensile rating of 8000 N, this cable can span distances of over 200 meters between poles without additional supports. The central steel wire strength member and stranded support wires work together to withstand high ice loads, wind pressure, and cable sag. This high strength ensures reliable performance even in harsh weather conditions, reducing the risk of cable breakage and service interruptions.
3. Robust Crush and Impact Resistance for Aerial Durability
The PSP steel tape armoring provides crush resistance of 1000 N/100mm, protecting fibers from bird pecks, falling branches, and accidental tool impacts during installation. The thick PE outer sheath (2 mm) adds further mechanical buffering. This robust construction ensures long-term signal integrity, with a designed service life exceeding 25 years in outdoor aerial environments without degradation.
4. Fully Water-Blocked Loose Tube Construction
The PBT loose tubes contain water-resistant gel, and the PSP tape prevents water migration along the cable core. This meets IEC 794-1-F5B requirements, allowing the cable to operate reliably even in high-humidity or rainy climates. The gel also cushions fibers against micro-bending, maintaining low attenuation (≤0.35 dB/km at 1310 nm) over decades of thermal expansion and contraction.
5. Wide Operating Temperature for Extreme Climates
The cable operates reliably from -40 °C to +60 °C and can be installed between -10 °C and +60 °C. The black PE sheath resists UV radiation, ozone, and chemical corrosion, ensuring flexibility in freezing winters and no softening in hot summers. This temperature resilience makes the cable suitable for diverse regions – from arctic circles to desert areas – without performance loss or sheath cracking.
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).
