Abstract: Embodiments of the present invention relate to methods and apparatuses directed towards communication cables and barrier tapes for use in communication cables. In an embodiment, the present invention employs conductive segments within the communication cables and/or on the barrier tape.

Abstract: Methods and apparatus directed towards communication cables and barrier tapes for use in communication cables are disclosed herein. In an embodiment, the present invention employs conductive segments within the communication cables and/or on the barrier tape.

Abstract: A matrix tape with conductive segments. The conductive segments are preferably provided on two layers of the matrix tape. The conductive segments can be attached to a film with an adhesive. A barrier tape is preferably applied between the cable core and the matrix tape.

Abstract: A communication cable with a barrier tape to improve crosstalk attenuation. The barrier tape is provided with one or more barrier layers of discontinuous conductive segments.

Abstract: A barrier tape used as part of a communication cable is described. The barrier tape is provided with one or more barrier layers of discontinuous conductive segments. Conductive segments of one barrier layer are preferably sized and shaped to overlie gaps between conductive segments of another barrier layer.

Abstract: Semi-conductive or insulating compositions including an ethylene/octane or butene copolymer and at least one additional polymer, such LDPE, are described. The compositions may also include carbon black and other additives.

Abstract: Insulation compositions for electric power cables having a polyolefin base polymer and an additive comprising either low molecular weight wax or polyethylene glycol (PEG) and optionally further comprising one or more hindered amine light stabilizers, amine antioxidants and other antioxidant blends are disclosed. Also disclosed are insulation compositions comprising a C2 to C8 alpha olefin in combination with a polyethylene homopolymer together with, optionally, one or more hindered amine light stabilizer and a liquid cresol antioxidant.

Abstract: A device for making a shielded electrical wire comprising a first folding die that folds a first and second edge of a shield tape in an opposite direction from the central portion of the shield tape, a second folding die that wraps the shield tape around the insulated conductors and folds the first edge back over onto the central portion of the shield tape to form a receiving area, a third folding die that tightens the shield tape around the plurality of conductors while positioning the receiving area to receive a drain wire, a wire guide that installs a drain wire in the receiving area, and a closing die that closes the shield tape around the plurality of conductors and the drain wire to form an enclosure around the plurality of conductors with the second edge overlapping the receiving area at an outside surface of the enclosure, in order to better define the claimed invention.

Abstract: The present invention relates to a barrier tape used as part of a communication cable to improve crosstalk attenuation. The barrier tape is provided with one or more barrier layers of discontinuous conductive segments. Conductive segments of one barrier layer are preferably sized and shaped to overlie gaps between conductive segments of another barrier layer.

Abstract: Novel additive systems for lead-free filled cable insulation are disclosed. These systems provide improved electrical and mechanical properties. The base polymer may be metallocene based, non metallocene based or combinations thereof. The additives may contain one or more hindered amine light stabilizers, mercapto compounds, and optionally, amine antioxidants.

Abstract: An electrical cable includes a cable jacket defining a central longitudinal axis and a plurality of twisted pairs of insulated conductors oriented longitudinally within the cable jacket. Each of the twisted pairs of insulated conductors has a width. A filler element is disposed in the cable jacket and is located adjacent to at least one of the twisted pairs of insulated conductors. The filler element defines a width that is substantially larger than the width of each the twisted pairs of insulated conductors. The filler element has a central axis laterally offset from the central longitudinal axis of the cable jacket. The filler element reduces alien crosstalk from an adjacent cable. A separator is disposed in said cable jacket between the twisted pairs of insulated conductors to reduce crosstalk between the twisted pairs of insulated conductors.

Abstract: An electrical cable that has a cable jacket defining a central longitudinal axis and at least first, second, third, and fourth twisted pairs of insulated conductors oriented longitudinally within the cable jacket and forming a core. Each of the twisted pairs of insulated conductors defines a width. A filler element is disposed in the cable jacket and located adjacent to at least one of the twisted pairs of insulated conductors. The filler element defines a width that is substantially larger than the width of each of the twisted pairs of insulated conductors. The filler element has a central axis laterally offset from the central longitudinal axis of the cable jacket, and the filler element is twisted around the core.

Abstract: An electrical cable includes a cable jacket defining a central longitudinal axis and a plurality of twisted pairs of insulated conductors oriented longitudinally within the cable jacket. Each of the twisted pairs of insulated conductors has a width. A filler element is disposed in the cable jacket and is located adjacent to at least one of the twisted pairs of insulated conductors. The filler element defines a width that is substantially larger than the width of each the twisted pairs of insulated conductors. The filler element has a central axis laterally offset from the central longitudinal axis of the cable jacket. The filler element reduces alien crosstalk from an adjacent cable. A separator is disposed in said cable jacket between the twisted pairs of insulated conductors to reduce crosstalk between the twisted pairs of insulated conductors.

Abstract: A method of evening the tension in the conductors of a twisted pair electric cable during the cable's installation comprising the step of pulling the cable through stlinging rollers while attached to a tension evening device. That allows constant adjustment of the tension in each of the cable's conductors, which prevents an unwanted looping effect and eliminates the need to even the tension at the end of the installation process. The tension evening device comprises a pull rope attached to a swivel that holds a sheave. The device is sized small enough so that it fits through the stringing rollers such that, during the installation of the cable, the entire tension evening device is pulled through. The sheave includes a groove around its outside diameter in which a sheave rope is placed. The ends of the sheave rope are attached to an end of each conductor.

Abstract: An improved conductor shielding composition for power cables is disclosed. The composition includes a base polymer, conductive carbon black and a waxy additive. Cable shields prepared from the composition exhibit improved aging performance in accelerated cable life tests (ACLT).