PRODUCTION CATALOG

PART IOptical Fibre Cableof OKSNM, OKSNMN typesFUNCTION1 52 63 74 81- Central strength member – fibreglass plastic2-Module3-Hydrophobic compound4- Sheath from polyethylene5-Aramide fibres6-JacketThe cable is designed for hanging on supports of communication lines,railway contact systems.DESIGN1. Modules with optical fibres2. Hydrophobic filling in modules and between modules and sheath3. Optical fibres produced by Fujikura, Corning, Draka4. Central strength member – fibreglass plastic rod5. Aramide fibres6. Jacket from polyethyleneSERVICE AND ASSEMBLY CONDITIONS1. Operating temperature range – from -60°C to 70°C2. The cables are designed for mechanized and manual installation at atemperature not lower than -10°C3. Admissible bending radius during assembly not less than 20 nominalcable diameters during operation and not less than 250 mm duringinstallation and assembly4. The cables’ service life, not less than – 25 years5. The cables are resistant to mold fungi, dew, rain, frost, salt fog, solarradiationSPECIFICATION1. Outside diameter of the cable (depending on design), - 11,8 – 17,7 (mm)2. Nominal weight (depending on design) – 122 – 252 (kg/km)3. The cable is tensile stress resistant - 4.0-20.0 kN4. The cable is crushing stress resistant, not less than – 400 N/cm5. Attenuation constant, on 1550 nm wavelength – 0,22 dB/km6. Number of fibres in a module –4-167. Total number of fibres – from 4 to 1448. Electrical resistance of outside sheath (armour – ground) not less than2000 MOhm/kmMARKING CABLE WHEN ORDERINGOKSNM-10-01-0,22-4...144 (6,0) optical city cable: OK-for optical, S-for selfsupporting,N-for non-metallic, M-for multimodule, 10-diameter of modefield, 01- central strength member from fibreglass plastic, 0,22-attenuationconstant in dB/km on 1550 nm wavelength, 4...144-number of fibres,6,0-admissible tensile stress in kN.OKSNMN-10-01-0,22-4...144 (6,0) cables in non-combustible design, sheathfrom a material not spreading combustion.REGULATIONSTU 16.К87-001-0010