Application
DPL optical fiber cable is designed for laying in ducts, conduits, collectors, tunnels, on bridges and overpasses, buildings, in case of danger of damage by rodents. Direct burial in soil is allowed in case of increased requirements for protection against water penetration.
Cable design
- Central strength member – GRP rod.
- Optical fibers of different colors.
- Polymer tube filled by hydrophobic compound or Filler (if necessary).
- Inner PE sheath.
- Corrugated steel tape with polymer coating.
- Outer PE sheath.
Specifications
- Fiber count – up to 576;
- Static tensile strength – from 1,5 kN to 5,0 kN;*
- Crush resistance – from 0,4 kN/cm to 0,7 kN/cm;*
- Impact resistance – 30 J;
- Allowed bending radius – from 270 mm to 560 mm;
- Cable diameter – from 13,6 mm to 28,8 mm;
- Cable weight – from 190 kg/km to 535 kg/km;
- Outer PE sheath insulation resistance (circuit “armor – land (water)”) – 4000 MOm*km;
- Cable length on a drum – up to 10 km.
Diameter, weight and bending radius are reference values.
At the demand of the customer, for cables used in buildings, ducts, conduits and tunnels, outer sheath may be made of flame retardant polymer composition not containing halogen (LSZH).
* – customer can choose values in ranges provided
In similar conditions of laying alternative cable designs can be used instead of DPL:
DOL – cable design is equal to DPL, but without inner sheath. Its main advantages are weight, size and cost;
OPL – cable based on central tube, maximal fiber count – 64. Its main advantages are weight, size and cost;
DPC – cable design is similar to DPL but it untilizes galvanized steel armoring wires instead of corrugated steel tape. Its main advantages are better operational performance and cost;
OPC – cable based on central tube with galvanized steel armoring wires. This design has advantages in weight & size, operational performance, cost.