GYTA53 Large Core Fiber Optic Outdoor Cable , Double Armoured Fiber Optical Cable
Outdoor Communication Large-Core Structure Directly Buried Anti-Ant Double Armoured Fiber Optical Cable
The structure of GYTA53 optical cable features 250μm optical fiber sheathed in a loose tube made of high modulus material, filled with waterproof compound. The cable core center contains a metal reinforced core, with some cables requiring a polyethylene (PE) layer extruded outside the metal reinforced core. Loose tubes (and filler ropes) are twisted around the central reinforcing core to form a compact, round cable core, with gaps filled with water blocking fillers. Plastic coated aluminum tape (APL) is longitudinally wrapped and extruded with a polyethylene inner sheath, followed by double-sided plastic coated steel tape (PSP) longitudinally wrapped and extruded with polyethylene sheath.
- Adopting "SZ" bidirectional layer twisting technology
- Filling water-blocking ointment step by step, water-blocking in full section
- Steel (aluminum) belt has reliable bonding with the edge, high strength, and no cracking when twisted
- Stable fiber excess length control
- After cable formation, additional fiber attenuation is almost zero, and dispersion value does not change
- Excellent environmental performance, applicable temperature range: -10℃ to +70℃
| Fiber Count | Nominal Diameter (mm) | Nominal Weight (kg/km) | Max Fibers per Tube | Max No. of (Tubes+fillers) | Allowable Tensile Load (N) | Allowable Crush Resistance (N/100mm) |
|---|---|---|---|---|---|---|
| 2~30 | 13.2 | 162 | 6 | 5 | 3000 / 1000 | 3000 / 1000 |
| 32~48 | 13.8 | 175 | 8 | 6 | 3000 / 1000 | 3000 / 1000 |
| 50~72 | 14.6 | 205 | 12 | 6 | 3000 / 1000 | 3000 / 1000 |
| 74~96 | 16.0 | 230 | 12 | 8 | 3000 / 1000 | 3000 / 1000 |
| 98~144 | 17.6 | 285 | 12 | 12 | 3000 / 1000 | 3000 / 1000 |
| >144 | Available upon customer's request | |||||
Notes:
- For flame retardant cable, outer sheath can be made of low-smoke halogen-free (LSZH) material (type GYTZS)
- Upon customer request, cables with longitudinal color strip on outer sheath can be offered
- Special cable structures can be designed and manufactured per customer requirements
Technical parameters of ITU-T G.652D (B1.3) single-mode optical fiber:
| Characteristics | Conditions | Specified Values | Units |
|---|---|---|---|
| Mode field diameter (MFD) | 1310nm | 9.2±0.4 | µm |
| 1550nm | 10.4±0.8 | µm | |
| Cut-off wavelength (λcc) | ≤1260 | nm | |
| Attenuation coefficient | 1310nm | ＜0.35 | dB/km |
| 1383nm | ＜0.35 | dB/km | |
| 1550nm | ＜0.22 | dB/km | |
| Macro bending loss | φ75mm, 100circles, at 1550nm | ≤0.1 | dB |
| Attenuation non-uniformity | ≤0.05 | dB | |
| Dispersion coefficient | 1288~1339nm | ≤3.5 | Ps/(nm.km) |
| 1271~1360nm | ≤5.3 | Ps/(nm.km) | |
| 1550nm | ≤18 | Ps/(nm.km) | |
| Zero dispersion wavelength | 1300~1324 | nm | |
| Max zero dispersion slope | ≤0.093 | Ps/(nm2.km) | |
| Group index of refraction | 1310nm | 1.466 | |
| 1550nm | 1.467 |
| Performance Category | Test Standard |
|---|---|
| Max Tension Performance | IEC 60794-1-2-E |
| Max. Operation Tension | IEC 60794-1-2-E1 |
| Crush Test | IEC 6079 -1-2-E3 |
| Impact Test | IEC 60794-1-2-E4 |
| Repeated Bending | IEC 60794-1-2-E6 |
| Torsion Test | IEC 60794-1-2-E7 |
| Cable bend | IEC 60794-1-2-E11A |
| Attenuation Coefficient | ITU-T G.652 |
| Structural Test | IEC-60793-1-20 |
| Temperature Cycling | IEC 60794-1-2-F1 |
| Water Penetration | IEC 60794-1-2-F5B |
| Filing Compound Flow | IEC 60794-1-E14 |
- Central Strength Member: Steel construction providing tensile and anti-buckling strength
- Loose Tube: Optical fibers housed in jelly-filled PBT tubes, colored for identification
- Water Blocking Material: Filling compound between loose tube and inner sheath protects from water intrusion
- Armour: Corrugated steel tape and aluminum tape provide compression strength, anti-crush properties, rodent and bullet protection
- Outer Jacket: Black high density polyethylene jacket extruded over cable core
- Cable Sheath Marking: Includes manufacturer name, year, cable type, fiber details, length marks, and customer requirements
Suitable for overhead, pipeline, direct buried and other laying methods
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