Application
DPMm hybrid optical fiber cable with additionalinsulatedcopper conductors is designed for direct burial in soil, laying in ducts, conduits, collectors, tunnels, bridges and overpasses, buildings, with increased requirements to resistance to external electromagnetic influences. It is also allowed to lay the cable in the ground, exposed to low temperature deformations, if cable resistance to tensile forces of at least 20 kN.
Cable design
- Central strength member – GRP rod.
- Optical fibers of different colors.
- PBT tube filled by hydrophobic compound or insulated copper conductors.
- Filler.
- Inner PE sheath.
- GRP rods armouring.
- Outer PE sheath with meter marking.
Armouring free space is filled with waterblocking compound.
Specifications
- Fiber count – up to 144;
- Copper conductors count – from 1 to 11;
- Static tensile strength – from 5,0 kN to 50,0 kN;*
- Crush resistance – from 0.4 kN/cm to 1,0 kN/cm;
- Impact resistance – 30 J;
- Allowed bending radius – from 272 mm to 456 mm;
- Cable diameter – from 13,6 mm to 22,8 mm;
- Cable weight – from 175 kg/km to 465 kg/km;
- Copper conductor diameter – from 0.4 mm to 2.8 mm;*
- Cable length on a drum – up to 4 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