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The structure of flat optical cables involves inserting 250 μm optical fibers into loose tubes, with waterproof compounds filled inside the tubes. The loose tube is longitudinally wrapped with a water-blocking layer on the outside, with two FRP pipes placed on both sides for auxiliary reinforcement. Additionally, a copper wire signal line is added to the outside of the optical cable, and then a polyethylene sheath is extruded to form the cable.



| Type | Max. Attenuation | Tensile Strength | Crush Resistance | Min. Bending Radius | |||
|---|---|---|---|---|---|---|---|
| 1310nm | 1550nm | Short term | Long term | Short term | Long term | ||
| GYXFTY+BY | 0.36dB/km | 0.25dB/km | 80N | 40N | 1000N | 500N | 40mm |






