IMPROVED SUPPORT STRUCTURES FOR OPTICAL FIBERS IN OVERHEAD GROUND WIRES AND OPTICAL FIBER CABLES

摘要

The core comprises a central reinforcing member 1 formed of reinforcing elements such as glass fibres embedded in a polyphenylene sulphide plastics material and a layer 2 of a polyether-ether-ketone extruded over the member 1 and provided with passages 3 for accommodating optical fibres 5. The plastics material of the central member 1 has a lower melting point than that of the layer 2 and the core may include (Figure 2, not shown) a metal sheath (11) to carry electric signals. IMAGE