Fiber-optic cable OKK (ADSS) without inner PE jacket for suspension on urban lighting pillars.
OKK is designed for construction of overhead power lines with voltage up to 35 kV in points with maximal electrical field potential up to 12 kV; between buildings.
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 polymer tubes and between them is filled with hydrophobic filler. Cable core is wrapped by yarns. PET-tape is imposed on the cable core. High modulus aramid yarn layer covers cable core. High density polyethylene jacket forms around yarn layer.
On customer’s request cable design can have following options:
|Number of fibers||2-60||62-96||98-144|
|Number of polymer tubes||5||6||6|
|Number of optical fibers in a tube||up to 12||up to 16||up to 24|
|Long-term permissible tensile force , kN||7||7||7|
|Nominal overall diameter, mm||11,2||11,2||13,3|
|Total mass of cable with polyethylene jacket, kg/km||99||103||139|
|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|
|Guarantee exploitation||2 years after putting in operation, not more than 2,5 years from shipping date|
|Tensile strength||from 3 kN to 12 kN|
|Crush strength||not less than 3 kN/100 mm|