Fiber-optic cable OKB-T for direct burial installation, cable ducts, tubes, tunnels.
Fiber-optic cable OKB-T is designed for direct burial installation, cable ducts, tubes, tunnels in case of high requirements of crush strength.
Cable core is a tube. Optical fibers are placed inside the tube. Interstice inside cable core is filled with hydrophobic filler. An armour of galvanized steel wires is formed around cable core. Interstice between cable core and armour is filled with hydrophobic filler. An additional jacket of high density polyethylene is extruded over the armour. In case of exclusive standards of fire safety cable jacket is made of halogen free flame retardant (HFFR) compound. In case the number of fibers exceeds 12 ring marking is used and/or bundling with identifications yarns.
|Number of fibers||2-8||2-24||26-36||38-48|
|Nominal overall diameter, mm||6,8||8,4||9,4||10,0|
|Total mass of cable with polyethylene jacket, kg/km||83,0||129,0||160,0||180,0|
|Tensile strength||2,7 kN||4,2 kN||5,1 kN||5,7 kN|
|Temperature range of operation, °С|
|Temperature range of installation, °С|
|Minimal bending radius, mm|
|Outer sheath type||