A submarine communications cable is a cable laid on the sea bed between land-based stations to carry telecommunication signals across stretches of ocean and sea.
Application:
* Submarine Composite Power Cables - land, offshore wind farms, offshore oil and gas installations
* Umbilicals - interconnecting / connecting subsea installations to fixed, floating platforms, FPSOs
* Fibre Optic Cables - power and signal feeding subsea installations, scientific sensors, seismic arrays, etc
* ROV Control Cables - ROVs and trenchers, dynamic applications down to 7,000 meters
Optical fiber type and properties
| (Item) | Unit | Specification | |
| G.652D | |||
| Mode field diameter | 1310nm | ^m | 9.2 ± 0.4 |
| 1550nm | ^m | 10.4 ± 0.8 | |
| Cladding diameter | ^m | 125.0 土 1 | |
| Cladding non-circularity | % | <1.0 | |
| Core/cladding concentricity error | ^m | <0.5 | |
| Coating diameter | ^m | 242 ± 7 | |
| Coating/cladding concentricity error | ^m | <12 | |
| Cable cut-off wavelength | nm | < 1260 | |
| Attenuation Coefficient | 1310nm | dB/km | <0.36 |
| 1550nm | dB/km | <0.22 | |
| Proof stress level | kpsi | >100 | |
Dimensions of cable constructions
| Fiber count | 2 |
| Struct ure | 1+5 |
| Fibers pertube | 1 |
| Loosetobe diameter (mm) | 3.5±0.3 |
| Conductor | 2.0 |
| CSMdiameter /pad diameter (mm) | 2.5/2.5 |
| NominalThickne ss of Inner jacket (mm) | 0.9 |
| NominaThickne ss of outer jacket (mm) | 1.8 |
| Cable diameter(mm) | 18.3 + 0.5 |
| Cable weigh(kg/k m) | 520 |
Cable performance
| (Item) | (Parameters) | |
| Fiber | Color | Full color spectrum |
| Loose tube | Material | PBT |
| Color | Full color spectrum | |
| Filler | Material | PE |
| Color | Black | |
| Electrical unit | Material of Insulation | PVC |
| Color | Red Blue 2mm*2 | |
| CSM | Material | Phosphating steel wire |
| Armoured | Material | Plastic coated aluminum strip |
| Inner jacket | Material | MDPE |
| Color | Black | |
| Steel wire armoured | Material | 0.9mm*48 Phosphating steel wire |
| Outer jacket | Material | MDPE |
| Color | Black | |
| Min. bending radius | Static | 12.5times cable diameter |
| Dynamic | 25times cable diameter | |
| Tensile performance | Short term | 10000N |
| Crush | Short term | 5000N/100mm |
Drum
| (Cable type) | (Drum) | ||||
| GDTA33 | Height (mm) | Width (mm) | Inner diameter (mm) | Lengt h(km) | Drum type |
| 1150 | 750 | 600 | 1 | Plywood wood drum | |
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