GYFTA53 Underground Double Jacket Non Metallic Armoring Fiber Optic Cable
Cable Construction
The GYFTA53 cable is constructed by inserting a 250μm fiber into a loose tube made of a high-modulus material filled with a water-repellent compound. The center of the core is a non-metallic reinforcing core (FRP). A non-metallic reinforcing core is required to be extruded with a layer of polyethylene (PE)
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GYFTA53/GYTA53
Optical Parameters
| 50/125µm | 62.5/125µm | G.652 | G.655 | ||
| Attenuation(+20°C) | @850nm | ≤3.0dB/km | ≤3.3dB/km | ||
| @1300nm | ≤1.0dB/km | ≤ 1.0dB/km | |||
| @1310nm | ≤0.36dB/km | ≤0.4dB/km | |||
| @1550nm | ≤0.22dB/km | ≤0.23dB/km | |||
| Bandwidth (Class A) | @850nm | ≥ 500MHz.km | ≥ 200MHz.km | ||
| @1300nm | ≥ 1000MHz.km | ≥ 600MHz.km | |||
| Numerical Aperture | 0.200 ±0.015NA | 0.275 ±0.015NA | |||
| Cable Cut-off Wavelength λcc | ≤ 1260nm | ≤ 1450nm |
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Cable Performance
| Item | Parameters | |
| Fiber Count | 24 | |
| Colored coated fiber | Dimension | 250µm±15µm |
| Color | Blue,Orange,Green,Brown,Gray,White, | |
| Loose tube | Dimension | 1.8mm±0.1mm |
| Material | PBT | |
| Color | Blue,Orange,Green,Brown | |
| Filler | Material | PE |
| Color | Black | |
| Central Strength Member | Dimension | 1.6mm±0.2mm |
| Material | Phosphating steel wire | |
| Armoured | Material | Plastic coated steel strip and aluminum tape |
| Outer jacket | Material | PE |
| Color | Black | |
Mechanical and Environmental Characteristics
| Item | Unit | Specifications |
| Tension(Long Term) | N | 600 |
| Tension(Short Term) | N | 1500 |
| Crush(Long Term) | N/10cm | 1000 |
| Crush(Short Term) | N/10cm | 3000 |
| Min. Bend Radius(Dynamic) | mm | 20D |
| Min.Bend Radius(Static) | mm | 10D |
| Installation Temperature | ℃ | -40~+60 |
| Operating Temperature | ℃ | -40~+70 |
| Storage Temperature | ℃ | -40~+70 |
| Repeating bending | Load:250N;number of cycles:30 No obvious addition attenuation, no fiber break and no cable damage. | |
| Torsion | Load:250N; number of cycles:10; twist angle:±90° No obvious addition attenuation, no fiber break and no cable damage. | |
OTDR testing
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