Abstract: Protective sheath for fusion or adhesive optical waveguide splice. The protective sheath comprises a fusion bonding sleeve surrounding the splice and a shrinkable sleeve surrounding the fusion bonding sleeve. An oblong support is arranged between the fusion bonding sleeve and the shrinkable sleeve to protect the splice. The support has an open channel in which the splice is arranged.

Abstract: The cable comprises a plurality of electrical conductor elements and a plurality of tensile load-bearing elements combined with the conductor elements to form the cable. The tensile-load-bearing elements are made of high-tensile strength synthetic plastic material.

Abstract: A high-strength rope, strand or yarn includes a core component, such as a fiber or a plurality thereof, of elastic synthetic plastic material, the core component having a predetermined length. A plurality of envelope components surrounds the core component and includes filaments of high tensile strength synthetic plastic material, the filaments being of substantially equal length exceeding the predetermined length. The envelope components may be in form of strands or yarns, each including a plurality of high tensile strength filaments. The rope may be soaked with flexible wear-resistant material, and a jacket of flexible, wear-resistant synthetic plastic material may surround the rope or the strands, yarns or filaments which constitute the same.