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Composite Cables |
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| Conductor | 7/0.67mm Stranded bare copper wire |
| Insulation | XLPE. Thickness is 0.7mm. Outer diameter 3.41mm |
12C Fiber Cable
| No of fibers in loose tube | 12 fibers |
| Loose tube | outer diameter: 2.4mm (PE or PVC Sheathwould be used over the loose tube if necessary) |
Element Assembly
| Central Strength Member | 1.5mm FRP central strength member with PE/PVC coating if necessary |
| Strength member | Aramid yarn helically is applied over cable core. |
| Wrapping Tape | Polyester tape is applied over cable core |
| Inner Jacket | PE, LSOH is optional, thickness is 1.0mm |
| Armor | Steel wire armour, size: 0.9mm |
| Sheath | PE, LSOH is optional, thickness is 1.8mm, nominal outer diameter 17.0±1.0mm |
| Sheath Color | Black |
Optical Characteristics
12C Optic Fiber Cable, G652D ( around central member )
| Parameter | Standard Single Mode Fiber per ITU-T G.652D | Non-zero Dispersion Shifted fiber per ITU-T G.655 | Non-zero Dispersion Shifted fiber per ITU-T G.656 | Units | |
| Fiber Code | 9 | 8 | 7 | ||
| Attenuation, Loose Tube Cables | @1310nm | ≤0.35 | N/A | N/A | dB/km |
| @1550nm | ≤0.22 | ≤0.22 | ≤0.22 | dB/km | |
| @1625nm | ≤0.25 | ≤0.26 | ≤0.26 | dB/km | |
| Attenuation, Tight Buffer or Semi-Tight Cables | @1310nm | ≤0.38 | N/A | dB/km | |
| @1550nm | ≤0.28 | N/A | dB/km | ||
| Chromatic Dispersion | between 1260 and 1360nm (O Band) | ≤3.5 | N/A | N/A | ps/(nm*km) |
| between 1460 and 1530nm (S Band) | N/A | N/A | 2.0-7.0 | ps/(nm*km) | |
| between 1530 and 1565nm (C Band) | ≤18 | 1.0-10.0 | 7.0-10.0 | ps/(nm*km) | |
| between 1565 and 1625nm (L Band) | ≤22 | 7.0-12.0 | 10.0-14.0 | ps/(nm*km) | |
| Zero Dispersion Wavelength | 1310±11 | 1530-1560 | 1460-1565 | nm | |
| Zero Dispersion Slope | 0.093 | 0.093 | 0.093 | ps/(nm2.km) | |
| Point Discontinuity at 1300nm& 1550nm | 0.1 | 0.1 | 0.1 | dB | |
| Mode Field Diameter | @1300nm | 9.3±0.5 | N/A | N/A | um |
| @1550nm | 10.4±0.8 | 8.5±0.6 | 9.0±0.5 | um | |
| Cable Cut-offWavelength | ≤1260 | ≤1450 | ≤1450 | nm | |
| PMD (Individual fiber) | ≤0.2 | ≤0.2 | ≤0.2 | ps/km1/2 | |
| Cladding Diameter | 125±1 | 125±1 | 125±1 | um | |
| Core/Cladding Concentricity Error | ≤0.5 | ≤0.5 | ≤0.6 | um |
| Cladding Non-Circularity | ≤1.0 | ≤1.0 | ≤1.0 | % |
| Coating Non-Circularity | ≤6.0 | ≤6.0 | ≤6.0 | % |
| Primary Coating Diameter | 245±10 | 245±10 | 245±10 | um |
| Proof-Test Level | 100 (0.7) | 100 (0.7) | 100 (0.7) | Kpsi/GN/m2 |
| Fatigue Coefficient | ≥20 | ≥20 | ≥20 | |
| Temperature Dependence between 0°C ~ +70°C @ 1310& 1550nm | 0.1 | 0.1 | 0.1 | Db/km |
The fibers contain no splices.
Mechanical Properties:
Tensile load: Operating: 2650N
Installation: 8000N
Bending radius: Operating: 15×OD
Installation: 30×OD
Compressive load: Short term: 6000N
Long term: 4000N