1. Cable cross-section
2. Cable Specification
2.1 Introduction
The fibers are placed in a loose tube made of PBT. The tubes are filled with a water-resistant filling compound. elements (tubes and filler rods) laid up around no-metallic central strength member, filling compound filled in the apertures of the cable core, PE inner sheath, aramid yarn as the supporting member and PE(or ATPE) outer sheath.
2.2 Fiber color code
Fiber color in each tube starts from No. 1 Blue.
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
Blue | Orange | Green | Brown | Gray | White | Red | Black | _ | _ | _ | _ |
2.3 Color codes for loose tube & filler rod
Tube color in each layer starts from No. 1 Blue. If there are fillers, the color is nature.
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
Blue | Orange | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ |
2.4 Cable structure and parameter
SN | Item | Unit | Value |
1 | No. of fibers | count | 16 |
2 | No. of fibers per tube(max) | count | 8 |
3 | No. of elements | count | 2 |
4 | Tube diameter | mm | 2.15 |
5 | Outer sheath wall thickness | mm | 1.8 |
6 | Cable diameter | mm | 12 |
7 | Cable weight | kg/km | 120 |
8 | Short term tension | N | 8000 |
9 | Short term crush | N/100mm | 2200 |
Note: Mechanical sizes are nominal values.
3. Characteristic of Optical Cable
Mechanicalcharacteristic and test method | |||
Tensilestrength | conform to IEC 794-1-E1 | ||
Crush | conform to IEC 794-1-E3 | ||
Impact | conform to IEC 794-1-E4 | ||
Repeatedbending | conform to IEC 794-1-E6 | ||
Torsion | conform to IEC 794-1-E7 | ||
Flexing | conform to IEC 794-1-E8 | ||
Cablebend | conform to IEC 794-1-E11 | ||
Waterpenetration | conform to IEC 794-1-F5B | ||
Temperaturerequirement | Operation | - 40℃ ~ +60℃ | |
Installation | - 10℃ ~ +60℃ | ||
Storage/transportation | - 40℃ ~ +60℃ | ||
Temperaturecycling test | conform to IEC 794-1-F1 | ||
BendingRadius | unloaded | 10times of outer diameter | |
loaded | 20times of outer diameter | ||
4. Characteristic of Optical Fiber
G652D fiber information
| Mode field diameter (1310nm): | 9.2mm±0.4mm |
| Mode fielddiameter (1550nm): | 10.4mm±0.8mm |
| Claddingdiameter: | 125mm±1.0mm |
| Coatingdiameter: | 245mm±7mm |
| Cut offwavelength of cabled fiber (lcc): | £1260nm |
| Attenuationat 1310nm: | £0.35dB/km |
| Attenuationat 1550nm: | £0.21dB/km |
| Bending loss at 1550nm (100 turns, 30mm radius): | £0.05dB |
| Dispersion inthe range 1288 to 1339nm: | £3.5ps/(nm•km) |
| Dispersion at1550nm: | £18ps/(nm•km) |
| Dispersionslope at zero dispersion wavelength: | £0.092ps/(nm2•km) |
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