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Composite Cables |
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| Conductor | 7/0.67mm Stranded bare copper wire |
| Insulation | XLPE compound. Nominal outer diameter 3.41mm |
| Insulation Color | Blue, Brown and Green/Yellow |
6 Core Central Loose Tube Fiber Optic Cable
| Optical Fiber | Single-mode cabled fibers meet or exceed the requirements of ITUT G.652.D specification |
| Loose Tube | PBT tubes1.80±0.1mm outer diameter, contains 6 fibers, The tubes are filled with a thixotropic gel to prevent the ingress of water |
| Fiber Glass Yarn | Fiber Glass Yarn is laid over the tube core to serve as peripheral strength member. |
| Sheath | PE outer Sheathis extruded over the glass yarn, Nominal outer diameter is about 3.40mm |
| Sheath Color | Black |
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. |
| Inner Jacket | BlackPE, thickness 1.00mm |
| Armor | Steel wire braid, coverage 80%, 0.25mm steel tape armor is optional |
| Sheath | PE, thickness 1.80mm, nominal outer diameter 16.00±1.0mm |
| Sheath Color | Black |
Optical Characteristics
Single-mode fibers meet or exceed the requirements of ITUT G.652.D, as listed in below:
| 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-off Wavelength | ≤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:
Minimum Bending Radius:
Under Installation: 25×OD
During Operation: 12.5×OD
Temperature Range:
Operating Temperature Range: -40°C (-40 oF to +70°C (+158 oF)
StorageTemperature Range: -50°C (-58 oF to +70°C (+158 oF)
Maximum Crush Resistance:
Long Term:300N
Short Term:10000N
Minimum Tensile Resistance:
Under Installation: 1500N
During Operation: 600N.
Repeated Impact: 4.0 N.m (J
Twist (Torsion): 180x10 times, 125xOD
Cyclic Flexing: 25 cycles for armoured cables;