An optical communication cable subassembly includes a cable core having optical fibers each comprising a core surrounded by a cladding, buffer tubes surrounding subsets of the optical fibers, and a binder film surrounding the buffer tubes. Armor surrounds the cable core, the binder film is bonded to an interior of the armor, and water-absorbing powder particles are provided on an interior surface of the binder film.

A method for the continuous production of a thin-walled, perforated metal hollow profile with one or more fibre waveguides mounted therein. The method includes supplying of a flat metal strip at a first supply rate to a deforming device, which continuously deforms the metal strip into a metal hollow profile with a slot running in a longitudinal direction. Two opposite edges of the metal strip deformed into the metal hollow profile that lie flush against one another in a contact region extending in the longitudinal direction of the metal hollow profile are continuously welded to one another, drawn off from the welding region and perforated. The method further includes positioning a protective tube reaching into the welded metal hollow profile on the draw-off side to beyond the perforation point and supplying one or more fibre waveguides from one or more fibre unwinders via the protective tube, such that the fibre waveguide or waveguides are introduced into the perforated metal hollow profile from the guide or protective tube downstream of the perforation point in the drawing-off direction. The perforated metal hollow profile with the fibre waveguide or fibre waveguides mounted therein is received in a receiving unit.

The disclosure provides optical fiber cable manufacturing equipment including a collective core portion including a plurality of optical fibers, a metal tape disposed outside the collective core portion, and a sheath portion disposed outside the metal tape, the optical fiber cable manufacturing equipment including: a pre-bonding portion configured to pre-bond the metal tape to the outside of the collective core portion; a first coating portion disposed behind the pre-bonding portion to coat a first adhesive over at least part of both ends of the metal tape; a bonding portion disposed behind the pre-bonding portion to bond the metal tape to the outside of the collective core portion with the both ends of the metal tape overlapping each other; a second coating portion disposed behind the bonding portion to coat a second adhesive over the outside of the metal tape; and a sheath fabrication portion disposed behind the second coating portion to cover the collective core portion to which the metal tape is bonded, with a sheath, wherein an upper portion of the collective core portion to which the metal tape is bonded is heated before the collective core portion to which the metal tape is bonded enters the second coating portion, wherein the second adhesive is coated only over a lower portion of the collected core portion to which the metal tape is bonded in the second coating portion, wherein a melting point of the first adhesive is higher than a melting point of the first adhesive.

An optical fiber cable includes: a core including optical fibers; a reinforcing wrap that surrounds the core; and a sheath that accommodates the core and the reinforcing wrap. The reinforcing wrap includes an overlapping portion. A first end portion of the reinforcing wrap overlaps a second end portion of the reinforcing wrap at a portion of the reinforcing wrap in a circumferential direction of the optical fiber cable in a cross-sectional view.

A downhole cable includes a central core. The central core includes a metal tube having a plurality of optical fibers therein or a copper wire. The downhole cable further includes an extruded aluminum tube surrounding the central core.

An optical fiber cable includes: a core including optical fibers; an interposed layer including fibers wound around the core in an SZ shape; a reinforcing layer including metal and covering the interposed layer; and a sheath covering the reinforcing layer.

A protective covering system for optical cables includes a plurality of links which may be coupled together to form a two-layer barrier to protect optical fiber positioned with the coupled links. Each link includes a first portion and a wider second portion. The first portion of a first link is insertable in the second portion of a second link such that the first portion of the first link and the second portion of the second link overlap one another radially. The ends of each portion include oppositely extending flanges, at least one of which is temporarily deformable when the first link is inserted into the second link. When the first and second links are secured to one another, the coupled links are free to move axially and to tilt relative to each other.

Certain aspects of the present disclosure provide techniques for making armored cables. An example method for making an armored cable includes forming a strip stock into an armor tubing; welding a seam of the armor tubing in a welding zone; inserting at least one of a first optical fiber or a first wire into a first end of a first guide tube, wherein: the first guide tube extends through the welding zone; the first guide tube protects the at least one of the first optical fiber or the first wire during the welding of the seam; and the first guide tube is not part of the armored cable after the making of the armored cable; and supporting the first guide tube within the armor tubing by a plurality of support legs such that the first guide tube does not contact the armor tubing.

An optical fiber cable production method includes: feeding a core including optical fibers; winding a reinforcing wrap around the core and forming an overlapping portion in which end portions of the reinforcing wrap overlap each other at a portion of the reinforcing wrap in a circumferential direction; and performing extrusion molding of a sheath on an outside of the reinforcing wrap. The overlapping portion extends in a longitudinal direction of the optical fibers. In the performing extrusion molding, a resin that forms the sheath is inserted into a portion of the overlapping portion.

An embodiment of a method for manufacturing a cable component includes providing at least a pair of shaped wire members, passing the wire members through at least one shaped roller set, providing at least one cable portion, placing the wire members over the cable portion and running the wire members and cable portion through an assembly roller to form a subassembly, and attaching a fixing element to the subassembly to secure the wire members and cable portion to complete the cable component.