Optical fibres submarine telecommunication cables and their manufacturing process

摘要

The optical-fibres, submarine telecommunications cable of the invention has the following structure.;A metallic cord (1) that is completely impregnated with an incompressible fluid, occupies the radially innermost position of the cable.;Around the cord, there is present a plastic core (4) enclosed externally by a sheath (7).;The sheath (7) exercises a radial pressure upon the core (4) with reducing the radially outermost dimensions of this latter, to the value of its own inner diameter, with imposing a cross-section having a circular form with reciprocally contacting edges (11) upon the grooves (5) that are filled with incompressible fluid, wherein said optical fibres (6) are loosely housed.;The invention also concerns a manufacturing process for producing the cables in question.