Description
The ADSS structure of the optical cables adopts loose tube twisted structure. 250 um optical fibers are inserted into loose tube made of high modulus polyester and filled with non-metallic reinforcing members (FRP) around the center of the cable to form a round core. The gap in the core is filled with water-blocking ointment, Two layers of aramid yarn
are twisted to reinforce the yarn. Finally, polyethylene (PE) sheath is extruded.
All Dielectric Self-Supporting Cable-Single Sheath (4-144F) is a non-metallic cable which supports its own weight without the use of lashing wires or messenger cables, typically installed in overhead applications along power distribution or transmission
Features and Advantages
Non-metallic structure, good insulation, lightning protection
The aramid yarn has excellent production technology, uniform force, excellent stress-strain performance, excellent gunshot resistance and best anti-electric corrosion performance
No blackout construction, power line failure does not affect the normal transmission of optical cable
Smooth shape, so that the cable has superior aerodynamic performance
Cable structure
| Item | Contents | Unit | Value | ||||||||||
| Fiber count | Number | / | 4-8 | 12-72 | 96 | 144 | 288 | 432 | |||||
| Fiber type | / | / | G652D | ||||||||||
| Cable structure | / | / | 1+6 | 1+6 | 1+8 | 1+12 | 1+9+15 | 1+6+12 | |||||
| Fibers per tube | Count | / | 4-8 | 12 | 12 | 12 | 12 | 24 | |||||
| Fibers color | / | / | Blue、Orange、Green、Brown、Gray、White、Red、Black、Yellow、Violet、Pink、Aqua、Blue*、Orange*、Green*、Brown*、Gray*、White*、
Red*、Natural*、Yellow*、Violet*、Pink*、Aqua*，（*: Black dot marking） |
||||||||||
| Filler | Material | / | PP | ||||||||||
|
Loose tube |
Material | / | PBT | ||||||||||
| Nominal Diameter | mm | 2.2 | 2.8 | ||||||||||
| color | / | 4-144F：Blue、Orange、Green、Brown、Gray、White、Red、Black、Yellow、Violet、Pink、Aqua
288F：Blue、Orange、Green、Brown、Gray、White、Red、Black、Yellow、Violet、Pink、Aqua、Blue*、Orange*、Green*、Brown*、Gray*、White*、Red*、Nature*、Yellow*、Violet*、Pink*、Aqua*（* : Stripe (color : black)） 432F：Blue、Orange、Green、Brown、Gray、White、Red、Black、Yellow、Violet、Pink、Aqua、Blue*、Orange*、Green*、Brown*、 Gray*、White*（* : Stripe (color : black)） |
|||||||||||
| Central strength member | Material | / | FRP &PE cushion layer （when need） | ||||||||||
| Nominal Diameter | mm | 2.4 | 2.4 | 3.0 | 3.0 | 3.0 | 2.8 | ||||||
| PE cushion layer | mm | – | – | 3.8±0.2 | 6.7±0.2 | 4.2±0.2 | – | ||||||
| Water blocking | Material | Water blocking tape | |||||||||||
| Peripheral strength
member |
Material | Aramid yarn | |||||||||||
| Ripcord | Number | 3 | |||||||||||
| Inner sheath | Material | HDPE | |||||||||||
| Color | Black | ||||||||||||
| Outer sheath | Material | HDPE | |||||||||||
| Color | Black | ||||||||||||
| Thickness(mm) | Nom:2.0 | ||||||||||||
| Attenuation
(after cable) |
1310nm | dB/km | £0.36 | ||||||||||
| 1550nm | dB/km | £0.22 | |||||||||||
| Cable diameter | ±5% | mm | 13.0 | 13.1 | 14.5 | 17.5 | 20.3 | 20.9 | |||||
| Cable weight | ±10% | kg/km | 130 | 135 | 167 | 238 | 314 | 329 | |||||
| Sag | / | % | 1 | ||||||||||
| icing-thickness | / | mm | 5mm | ||||||||||
| wind speed | / | m/s | 2.8m/s (Max 34m/s) | ||||||||||
Standard color of fiber and tube
The color code of the tubes and 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 |
Mechanical & Environmental Performance
| Item | Contents | Value |
| Max. tensile load | Short term | 5500N（Fiber strain≤0.33％） |
| Max. crush resistance | Short term | 3000 N/100mm |
| Min. bending radius | Installation | 20x cable diameter |
| Operation | 10 x cable diameter | |
|
Temperature range |
Operation | -40℃ ~ +70℃ |
| Installation | -40℃ ~ +55℃ | |
| Storage/transportation | -40℃ ~ +70℃ |
Optical fiber technical parameters-SMF
| Item | Unit | Specification | |
| G. 652D | |||
| Mode field diameter | 1310nm | mm | 9.2 ± 0.4 |
| 1550nm | mm | 10.4 ± 0.5 | |
| Cladding diameter | mm | 125.0 ± 0.7 | |
| Cladding non-circularity | % | £1.0 | |
| Core concentricity error | mm | £0.6 | |
| Coating diameter | mm | 242 ± 7 | |
| Coating/cladding concentricity error | mm | £12 | |
| Cable cut-off wavelength λcc | nm | £ 1260 | |
| Attenuation | 1310nm | dB/km | £0.35 |
| 1550nm | dB/km | £0.21 | |
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