The invention relates to a cable (1) with at least one strand (2) having twisted litz wires (3) for conducting electrical current and an insulation sheath (4) surrounding the at least one strand (2) for electrically insulating the at least one strand (2). The cable (1) has an interruption section (5) without an insulation sheath (4) between two cable sections (6, 6) with an insulation sheath (4). According to the invention, the twisted weave of the at least one strand (2) is loosened in the interruption section (5), in order to interrupt the transport of moisture through the cable (1), in particular through the at least one strand (2), that results from capillary pressure and/or temperature-related pressure differences along the cable (1), such that the pressure in the interruption section (5) can equalize with that of the exterior.

The present invention relates to a method for the production of a cladding for elongated material (2), in particular a sheath for cable sets. In this method, an adhesive tape (3, 4) consisting of a carrier (4) and a first adhesive coating (3) which substantially fully covers the front side of the carrier (4) is combined with an adhesive-free carrier tape (5) such as to form a laminate (3, 4, 5). This is carried out such that the adhesive tape (3, 4) is applied to the carrier tape (5) with its first adhesive coating (3) in such a way that a first projection (.sub.1) is defined along at least one of the two longitudinal edges of said adhesive tape. According to the invention, the carrier (4) of the adhesive tape (3, 4) is additionally provided with a further second adhesive coating (7) substantially in parts of its rear side.

The present invention relates to a method for the production of a cladding for elongated material (2), in particular a sheath for cable sets. In this method, an adhesive tape (3, 4) consisting of a carrier (4) and a first adhesive coating (3) which substantially fully covers the front side of the carrier (4) is combined with an adhesive-free carrier tape (5) such as to form a laminate (3, 4, 5). This is carried out such that the adhesive tape (3, 4) is applied to the carrier tape (5) with its first adhesive coating (3) in such a way that a first projection (.sub.1) is defined along at least one of the two longitudinal edges of said adhesive tape. According to the invention, the carrier (4) of the adhesive tape (3, 4) is additionally provided with a further second adhesive coating (7) substantially in parts of its rear side.

A communications cable has a cable core with a plurality of twisted pairs of conductors and a metal foil tape disposed between the cable core and a jacket of the communications cable. The metal foil tape has a plurality of cuts that create a plurality of discontinuous regions in a metal layer of the metal foil tape. The metal foil tape is wrapped around the cable core such that the discontinuous regions overlap to form a plurality of overlapping regions. The overlapping regions producing capacitances connected in series, reducing an overall capacitance between the overlapping discontinuous regions. The plurality of cuts form a Y-shape cut having a first straight cut starting at one side of the metal foil tape and two cuts branching off of the first straight cut at opposite angles near a second side of the metal foil tape.

A communications cable has a cable core with a plurality of twisted pairs of conductors and a metal foil tape disposed between the cable core and a jacket of the communications cable. The metal foil tape has a plurality of cuts that create a plurality of discontinuous regions in a metal layer of the metal foil tape. The metal foil tape is wrapped around the cable core such that the discontinuous regions overlap to form a plurality of overlapping regions. The overlapping regions producing capacitances connected in series, reducing an overall capacitance between the overlapping discontinuous regions. The plurality of cuts form a Y-shape cut having a first straight cut starting at one side of the metal foil tape and two cuts branching off of the first straight cut at opposite angles near a second side of the metal foil tape.

A transmission cable may include a conductor core, an insulator layer surrounding the conductor core, and a shielding layer surrounding the insulator layer, wherein the shielding layer includes a carbon nanotube sheet material.

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 wrapped textile sleeve for protecting an elongate member and method of construction thereof is provided. The sleeve includes an inner layer having opposite inner edges extending lengthwise between opposite inner ends. The opposite inner edges are laterally spaced from one another by an inner width. The sleeve further includes an outer layer having opposite outer edges extending lengthwise between opposite outer ends. The opposite outer edges are laterally spaced from one another by an outer width. An adhesive intermediate layer is sandwiched between the inner layer and the outer layer, wherein a melted portion of the adhesive intermediate bonds the inner layer to the outer layer. The adhesive intermediate layer extends beyond at least one of the inner edges to provide an exposed region of the adhesive intermediate layer. The exposed region is bonded to the outer layer and maintains the outer layer in a wrapped, tubular configuration.

A wrapped textile sleeve for protecting an elongate member and method of construction thereof is provided. The sleeve includes an inner layer having opposite inner edges extending lengthwise between opposite inner ends. The opposite inner edges are laterally spaced from one another by an inner width. The sleeve further includes an outer layer having opposite outer edges extending lengthwise between opposite outer ends. The opposite outer edges are laterally spaced from one another by an outer width. An adhesive intermediate layer is sandwiched between the inner layer and the outer layer, wherein a melted portion of the adhesive intermediate bonds the inner layer to the outer layer. The adhesive intermediate layer extends beyond at least one of the inner edges to provide an exposed region of the adhesive intermediate layer. The exposed region is bonded to the outer layer and maintains the outer layer in a wrapped, tubular configuration.

There is described an electrical isolator comprising a first fluid-carrying member and a second fluid-carrying member spaced apart from said first fluid-carrying member, a resistive, semi-conductive or non-conductive component located between and sealed against said first and second fluid-carrying member, wherein said resistive, semi-conductive or non-conductive component is adapted to convey fluid flowing from said first fluid-carrying member to said second fluid-carrying member, a reinforcing composite encircling said first fluid-carrying member, said second fluid-carrying member and said resistive, semi-conductive or non-conductive component, wherein said reinforcing composite is continuous and provides a conductive path between said first fluid-carrying member and said second fluid-carrying member, wherein said reinforcing composite comprises fiber and a resin mixture, and said resin mixture comprises resin and a conductive additive.