Standard: IEC 60794; VDE 0888
CONSTRUCTION:
Optical fibers:
SM – single mode optical fibers (9/125 µm)
(G.652D, G.655, G.657A1/A2)
MM – multi mode optical fibers (50/125 or 62,5/125 µm) according to ITU-T Recommendation
Material of fibers:
a) core – Silicon glass: (SiO2) doped with Germanium Dioxide (GeO2);
b) cladding: Silicon glass (SiO2)
c) primary protection: Dual layer of UV-cured acrylate resin
Secondary protection: Filled loose polymer tube of PBT elastomer, filled with tixotropic jelly mass, loose laid fibers within tube – SZ stranded
Tube material: Polyester PBT-Polybutylene Terephtalate
Fibers and tubes designation: IEC 60304, TIA/EIA-598; DIN VDE 0888
Central supporting element: FRP – Fiberglass Reinforced Plastic (Glass roving (thread) reinforced with thermoplastic resin)
Sheath of central element: PE (or without sheath)
Cable core:
Concentrically stranded: around central supporting element are stranded loose tubes and cords, if necessary, in layers
Watertight element: Filling compound in the cable core (thixotropic gel)
Belt insulation: one or more paper or termoplastic tapes, helicoidally or longitudinally wrapped
Peripheral supporting elements: Aramid fibers
(can be doped with swellable powder are used as additional water and mechanical protection). Aramid fibers are wrapped with polyester tape.
Inner sheath: HDPE – high density polyethylene, black color
Armouring of cable: strength member element of aramid fibers in 2 layers
Sheath ripcord: one or more ripcord placed under outer sheath
Outer sheath: HDPE – high density polyethylene, black color (UV protection)
APPLICATION:
Self supporting for power lines (non metallic cable) are use for outdoor application, cable are waterproof, UV resistant, metal-free air hanging cable, suited for fixing on poles.
The permissible temperature range:
– during installation: from -30°C to +60°C
– during operation: from -30°C to +70°C
– during storage and transport: -40°C to +70°C
Min. permissible bending radius:
– Operation: 20D
– Fixed: 15 D (D – diameter of cable)
Tensile strength (kN): On customer’s request, depending on the span between poles.
