Underground Duct Traditional Unarmored Fiber Optic Cable GYFTY B1.3
Underground Duct Traditional Unarmored Fiber Optic Cable GYFTY B1.3
Core 12
Core 24
Core 48
Core 96
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Overview:
-
The specification covers the construction and properties of optical fiber cable.
- The cable shall be used directly in aerial access network.
- The cable generally meets the latest relevant IEC, ITU-T Recommendation or better.
- The single-mode fiber shall operate in 1310nm and 1550nm.
- The cable could serve for 40 years without any significant deterioration.
Construction:
| Parameter | Value |
|---|---|
| Fiber Type | Single-mode type ITU-T G.652D |
| Material | Ge-doped fused silica |
| Mode Field Diameter | 1310 nm: 9.2 ±0.4µm |
| Core Concentricity Error | ≤ 0.5μm |
| Cladding Diameter | 125±0.7μm |
| Cladding Non-Circularity | ≤ 1.0% |
| Coating Material | UV-curable acrylic |
| Coating Diameter | ≤ 250±10μm (Colored) |
| Cable Model | GYFTY-2/4/12/24/48/96F |
Optical characteristics:
| Parameter | Value |
|---|---|
| Attenuation @ 1310 nm | ≤ 0.35 dB/km |
| Attenuation @ 1383 nm | ≤ 0.35 dB/km |
| Attenuation @ 1550 nm | ≤ 0.20 dB/km |
| Attenuation @ 1625 nm | ≤ 0.25 dB/km |
| Zero-dispersion Wavelength | 1300~1324 nm |
| Zero-dispersion Slope | ≤ 0.092 ps/(nm^2 * km) |
| Chromatic Dispersion Coefficient | 1330 nm: ≤ 3.5 (ps/nm.km) |
| 1550 nm: ≤ 18 (ps/nm.km) | |
| Cable Cut-off Wavelength (λcc) | ≤ 1260 nm |
| Polarization Mode Dispersion | ≤ 0.2 ps/(km)^0.5 |
| Macrobend Loss (Before Cable) | G.652D 30mm radius x 100 turns: ≤ 0.1 dB (at 1550 nm) |
| Fiber Proof-tested | 0.69 GPa |
Constuction 1:
| Parameter | Value |
|---|---|
| Cable Type | GYFTY |
| Number of Fibers | 2/F/4F/12F/24F/48F/96F |
| Fiber Construction | Consult 3.1 |
| Central Strength Member | Material: FRP |
| Water Blocking Member | Material: Water-Blocking Tape & Yarn |
| Tube Material | PBT |
| Filling Compound Material | Water-Blocking Thixotropic Gel |
| Filler Material | PP |
| Rip Cord | Material: Polyester |
| Outer Sheath Material | PE |
| Sheath Thickness | 1.5 ± 0.1 mm |
Test Properties:
| Test | Test Method | Detail Specifications | Acceptance Criteria |
|---|---|---|---|
| Filling Gel Drip | IEC-60794-1-2 Method E14 | 80°C ≤0.05 gr | - |
| Filling Material: OIT | ASTM D 3895 and GR-20 | Clause 6.3.1: ≥20 min | - |
| Cable Material Compatibility | GR-20 Clause 6.3.4 | 85°C, 30 days | - |
| Fiber-stripping force | IEC 60793-1-32 | 30 mm | 1.0 ≤ Fstip ≤ 9.0 N |
| PBT Tube Properties | Tube wrapping around | No cracks or delamination | Per GR-20 Clause 6.3.4 |
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