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Production » Outdoor cables » Fiber-optic 8-shaped self-supporting cables » OKT-T/ST cable

OKT-T/ST cable

Fiber-optic cable OKT-T 8-shaped cable for suspension on overhead power lines.


OKT-T cable is designed for suspension on overhead power lines, urban lighting pillars, between buildings.

  1. Optical fiber
  2. PBT loose tube filled with hydrophobic gel
  3. Protective jacket
  4. Steel rope


Suspension strand is made of stranded galvanized steel wires. It is put longitudinally to the cable core – central tube. Optical fibers are placed inside the tube. Interstice inside the tube filled with hydrophobic filler. Cable core and suspension strand are formed at once longitudinally with high density polyethylene jackets. Cable core jacket and suspension strand jacket are connected along. In case the number of fibers exceeds 12 ring marking is used. and/or bundling with identification yarns.

On customer’s request cable design can have following options:

  1. Change of the standard color of polymer module and fibers.


Number of fibers2-810-1618-2426-48
Cable size (suspension strand-steel wire),mm 8,5x4,0 10,0x5,3 11,2x6,9 14,2x8,9
Cable size (suspension strand-FRP rod),mm
13,8x8,0 15,6x8,5
Total mass of cable (suspension strand-steel wire),kg/km 47,5 60,6 73,2 94,8
Total mass of cable (suspension strand-FRP rod),kg/km
91,6 110,3

Operational requirements:

Temperature range of operation, С° -60… +70
Temperature range of installation, С° -10… +50
Transport, storage, С° -60… +70
Minimal bending radius not less than 10 diameters
Lifetime 25 years
Guarantee exploitation 2 years after putting in operation, not more than 2,5 years from shipping date
Tensile strength from 1,0 kN to 9,0 kN
Crush strength from 2 to 5 kN/100 mm

Documentation is on request

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