A system for providing cable support may be provided. The system may comprise a conductor core, a filler that may provide integral core support, and armor. The conductor core may comprise at least one conductor. The filler may be applied around at least a portion of the conductor core. The armor may be applied around at least a portion of the filler. The applied armor may be configured to cause the filler to apply a strong enough force on an exterior of the conductor core configured to keep the conductor core from slipping down an interior of the filler due to a gravitational force. In addition, the applied armor may be configured to cause the filler to apply a strong enough force on an interior of the armor configured to keep a combination of the conductor core and the filler from slipping down the interior of the armor due to the gravitational force.

A cable that protects an object includes: a sheath; and a cylindrical reinforcement member disposed inside the sheath and that surrounds the object. The cylindrical reinforcement member has a first side edge and a second side edge that extend in a longitudinal direction. The cylindrical reinforcement member is formed of a cable reinforcement sheet including: a first metal sheet; and a second metal sheet joined to the first metal sheet. A portion of the first metal sheet overlaps a portion of the second metal sheet, and the overlapping portions define a joint portion where the first metal sheet and the second metal sheet are joined. The joint portion is inclined, from the second side edge to the first side edge, toward the first metal sheet.

An electromagnetic shield component that includes a first tube that has conductivity; a flexible shield; and a second tube externally fitted to the first tube with the flexible shield disposed between the first tube and the second tube, wherein: a protrusion is provided on an inner circumferential surface of the second tube over an entire length of the inner circumferential surface in a circumferential direction, the protrusion protruding toward the flexible shield and holding the flexible shield in a pressed state between the first tube and the second tube, and an outer circumferential surface of the protrusion is smoother than an outer circumferential surface of a portion of the second tube where the protrusion is not formed.

An electromagnetic shield component that includes a first tube that has conductivity; a flexible shield; and a second tube externally fitted to the first tube with the flexible shield disposed between the first tube and the second tube, wherein: a protrusion is provided on an inner circumferential surface of the second tube over an entire length of the inner circumferential surface in a circumferential direction, the protrusion protruding toward the flexible shield and holding the flexible shield in a pressed state between the first tube and the second tube, and an outer circumferential surface of the protrusion is smoother than an outer circumferential surface of a portion of the second tube where the protrusion is not formed.

The present disclosure describes various devices and methods for the reconstruction or restoration of a metallic shield of a cable, which provide a holding feature for simplifying the installation of an electrically-conductive member on the metallic shield and improving the reliability of the connection. Both factory-supplied and field-installable holding features are described.

The present disclosure describes various devices and methods for the reconstruction or restoration of a metallic shield of a cable, which provide a holding feature for simplifying the installation of an electrically-conductive member on the metallic shield and improving the reliability of the connection. Both factory-supplied and field-installable holding features are described.

An insulating coating material is provided herein. In some embodiments, the insulating coating material comprises an insulating film comprising a polyimide resin, wherein the insulating film, when measuring a tensile elasticity in accordance with ASTM D882, having a stress at 5% strain of 180 MPa or greater and a stress at 15% strain of 225 MPa or greater, wherein the stress at 15% strain is greater than the stress at 5% strain.

A communications cable having a plurality of twisted pairs of conductors and various embodiments of a metal foil tapes between the twisted pairs and a cable jacket is disclosed. In some embodiments, a metal foil tape includes a discontinuous metal layer and a polymer layer bonded to the metal layer. Portions of the metal layer and the polymer layer are deformed to form a plurality of dimples, the dimples forming air gaps between the polymer layer and the cable core or a barrier layer if used. The air gaps lower the overall dielectric constant between the metal layer and the cable core, thereby lowering the alien capacitance of the communications cable.

A method of installing a fire resistant coaxial cable is described in which the cable has a 2-part dielectric made of a polymer foam and a ceramifiable silicone rubber. The polymer foam, which can be polypropylene or other polymers, leaves little-to-no residue in the cable that causes electromagnetic loss when upon burning. The polymer foam can be extruded over a center conductor using an inert gas, such as nitrogen, to propagate the foam, ensuring little-to-no residue in the cable. The ceramifiable silicone rubber can be extruded over the polymer foam. The cable is configured to maintain a relatively coaxial relation between a center conductor and an outer conductor even under aforementioned fire tests. Another layer of ceramifiable silicone rubber can surround the outer conductor and continue to insulate it from the outside if a low-smoke zero-halogen (LSZH) jacket outer layer burns away.

A sheath for wrapping an elongated object is formed by an adhesive tape having a base strip having inner and outer faces, a first adhesive on the outer face, an adhesive-free overlay strip adhered to the first adhesive coating so as to leave a first exposed edge band on at least one of two longitudinal edges of the tape, and a second adhesive layer covering only part of an area of the inner face.