Application
DA3 optical fiber cable is designed for direct burial in soil (including frozen deformated soil), laying through rivers crossings, navigable rivers and deep-water lakes and reservoirs, bayous, ducts, conduits, collectors, tunnels, bridges and overpasses
Cable design
- Central strength member – GRP rod.
- Optical fibers of different colors.
- Filler (if necessary).
- PBT tube is filled by hydrophobic compound.
- Waterblocking tape.
- Aluminum tape with polymer coating.
- Inner PE sheath.
- Galvanized steel wire armoring, including high-strength wires with tensile load no less than 1670 MPa.
- Galvanized steel wire armoring, including high-strength wires with tensile load no less than 1670 MPa.
- Outer PE sheath.
Armouring free space is filled with waterblocking compound.
Specifications
- Fiber count – up to 384;
- Static tensile strength – from 80 kN to 250 kN;*
- Crush resistance – from 0.8 kN/cm to 2,5 kN/cm;
- Impact resistance – 50 J;
- Allowed bending radius – from 315 mm to 640 mm;
- Excessive hydrostatic pressure resistance – at least 2 MPa;
- Cable diameter – from 15,8 mm to 32,2 mm;
- Cable weight – from 525 kg/km to 2440 kg/km;
- Outer PE sheath insulation resistance (circuit “armor – land (water)”) – 4000 MOm*km;
- Cable length on a drum – up to 12 km.
Diameter, weight and bending radius are reference values.
* – customer can choose values in ranges provided