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Production » Outdoor cables » ADSS CABLES » OKK cable

OKK cable

Fiber-optic cable OKK for suspension on urban lighting pillars.


OKK is designed for construction of overhead power lines in points with maximal electrical field potential up to 25 kV; between buildings.

  1. Central strength member – fiberglass reinforced plastic rod
  2. Optical fiberо
  3. SZ stranded loose tubes filled with hydrophobic gel
  4. Inner jacket
  5. Aramid yarns
  6. Protective jacket
  7. * longitudinal watertightness of the cable is provided by a hydrophobic gel


Loose tube cable. Central strength member is made of fiber reinforced plastic (FRP) rod. Polymer tubes and plastic fillers are SZ-stranded around central strength member. Optical fibers are placed inside polymer tubes. Interstice inside and between polymer tubes is filled with hydrophobic filler. Cable core is wrapped by yarns. PET-tape is imposed on the cable core. PE – jacket is extruded over the core. An armour from high modulus aramid layer is formed around single jacketed cable with outer jacket of high density polyethylene extruded over the armour in case of electrical field potential up to 12 kV. In case of electrical field potential 12-25 kV outer jacket is made of track resistant polyethylene.

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

  1. Production of «dry» construction (water blocking yarns instead of hydrophobic filler).
  2. Change of outer jacket material (HDPE or Track Resistant HDPE).
  3. Change of the standard color of polymer modules and fibers.
  4. Number of fibers up to 288.


Number of fibers2-4042-6062-9698-144
Number of polymer tubes 5 5 6 6
Number of optical fibers in a tube up to 8 up to 12 up to 16 up to 24
Long-term permissible tensile force , kN 20 20 20 20
Nominal overall diameter, mm 13,5 14,4 14,5 15,6
Total mass of cable with polyethylene jacket, kg/km 141 162 167 190
Total mass of cable with track resistant PE jacket, kg/km 151 172 177 201

Operational requirements:

Temperature range of operation, С° -60… +70
Temperature range of installation, С° -30… +50
Transport, storage, С° -60… +60
Minimal bending radius not less than 20 diameters
Lifetime 25 years
Guarantee exploitation 2 years after putting in operation, not more than 2,5 years from shipping date
Tensile strength from 3,5 kN to 85,0 kN
Crush strength not less than 3 kN/100 mm

Documentation is on request

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