Accession Number : ADP000584

Title :   Self-Supporting Metal Free Optical Fibre Cable for Large Span Length,

Corporate Author : STANDARD ELEKTRIK LORENZ A G STUTTGART (GERMANY F R)

Personal Author(s) : Metz,Siegfried ; Schmidt,Wolfgang ; Kimmich,Klaus

Report Date : NOV 1982

Pagination or Media Count : 6

Abstract : A self-supporting optical cable has been developed for very large span length. This cable has an inner core with up to four optical fibres and an outer glass fibre reinforced plastic suspension unit. A thin PE sheathing increases the outer diameter up to 10 mm. This metal free cable is developed for span length up to 500 m from pole to pole. Considering wind-, ice load and the large span length, very high tensile strength is needed. Tensile strength for the FRP element is more than 50 kN, resistance to vibration and temperature cycling show good performance in the cable. The tests are carried out with special suspension clamps also used for the mounting poles. The cable contains up to four optical fibres tight jacketed with PA 12; attenuation values of 3.5 dB/km at 850 nm have been obtained in the cable. Electric utilities will be main users of this aerial type communication cable installed along the HT poles. (Author)

Descriptors :   *Fiber optics transmission lines, *Electric cables, *Electric wire, *Symposia, *Glass fibers, Fiber reinforcement, Optical properties, Self operation, Cores, Internal, Polymers, International

Distribution Statement : APPROVED FOR PUBLIC RELEASE