Description
In OMC’s 12-48F Stranded Loose Tube No-Armored outdoor cable-GYFHTY, A FRP wire, sometimes sheathed with polyethylene (PE) is located in the center of core as a No-metallic strength member. single-mode/multimode Fiber are positioned in the loose tube, which is made of PBT materials and filled with filling compound. The loose tube is covered with HDPE materials to guarantee the compactness and longitudinal water-blocking performance.
Standard color of fiber and tube
The color code of the individual fibers, shall be in accordance with the table as below:
| No. | 1 | 2 | 3 | 4 | 5 | 6 |
| Color | Blue | Orange | Green | Brown | Slate | White |
| No. | 7 | 8 | 9 | 10 | 11 | 12 |
| Color | Red | Black | Yellow | Violet | Pink | Aqua |
Structure parameter
| Item | Contents | Unit | Value | |
| Fiber count | Number | / | 12-24 | 36-48 |
| Fiber type | / | / | G652D/OM3 | |
| Cable structure | / | / | 1+6 | |
| Fibers per tube | Count | / | 6 | 12 |
| Loose tube | Material | / | PBT | |
| Diameter | mm | 1.8±0.1 | 2.1±0.1 | |
| Central strength member | Material | / | FRP &PE cushion layer | |
| Diameter | mm | 2.0±0.1 | 2.3±0.1 | |
| PE cushion | mm | – | ||
| Water blocking | Material | Water blocking tape | ||
| Peripheral strength member | Material | Glass yarn | ||
| Sheath | Material | HDPE | ||
| Color | Black | |||
| Outer diameter | mm | 1.5±0.1 | ||
| Attenuation (after
cable) |
1310nm | dB/km | £0.36 | |
| 1550nm | dB/km | £0.22 | ||
| Cable diameter | ±0.3 | mm | 9.3 | 10.2 |
| Cable weight | ±5% | kg/km | 75 | 88 |
Mechanical & Environmental Performance
| Item | Contents | Value |
| Max. tensile load | Max allowable tension | 1500N fiber strain≤0.6％ |
| Max. crush resistance | Short term | 1000 N/100mm |
| Min. bending radius | Installation | 25 x cable diameter |
| Operation | 15 x cable diameter | |
| Temperature range | Operation | -40℃ ~ +70℃ |
| Installation | -20℃ ~ +60℃ | |
| Storage/transportation | -40℃ ~ +70℃ |
Optical fiber technical parameters-SMF
| Item | Unit | Specification | |
| G. 652D | |||
| Mode field diameter | 1310nm | nm | 9.2 ± 0.4 |
| 1550nm | nm | 10.4 ± 0.5 | |
| Cladding diameter | nm | 125.0 ± 0.7 | |
| Cladding non-circularity | % | ≤1.0 | |
| Core concentricity error | nm | ≤0.6 | |
| Coating diameter | nm | 242 ± 7 | |
| Coating/cladding concentricity error | nm | ≤12 | |
| Cable cut-off wavelength λcc | nm | ≤ 1260 | |
| Attenuation | 1310nm | dB/km | ≤0.35 |
| 1550nm | dB/km | ≤0.21 | |
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