Application

DA2 optical fiber 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, buildings.

Cable design

1. Central strength member – GRP rod.
2. Optical fibers of different colors.
3. Filler (if necessary).
4. PBT tube filled by hydrophobic compound.
5. Waterblocking tape.
6. Aluminum tape with polymer coating.
7. Inner PE sheath.
8. Galvanized steel wire armoring, including high-strength wires with tensile load no less than 1670 MPa.
9. Galvanized steel wire armoring, including high-strength wires with tensile load no less than 1670 MPa.
10. Outer PE sheath.

Armouring free space is filled with waterblocking compound.

Specifications

• Fiber count – up to 384;
• Static tensile strength – from 80 kN to 200 kN;*
• Crush resistance – 1,0 kN/cm;
• Impact resistance – 50 J;
• Allowed bending radius – from 316 mm to 564 mm;
• Excessive hydrostatic pressure resistance – at least 2 MPa;
• Cable diameter – from 15,8 mm to 34,4 mm;
• Cable weight – from 525 kg/km to 3100 kg/km;
• Outer PE sheath insulation resistance (circuit “armor – land (water)”) – 4000 MOm*km;
• Cable length on a drum – up to 4 km.

Diameter, weight and bending radius are reference values.

* – customer can choose values in ranges provided