A data cable has a specially formed stranded conductor, as a result of which the transmission properties of the data cable are significantly improved. The stranded conductor is surrounded by insulation and has an unpressed assembly composed of a plurality of individual wires which are of a same type and being embodied as external wires and being disposed around a center. The external wires are embodied with a non-round cross section, with a result that when viewed in cross section an extent of the external wires increases radially outward from the center.

The present disclosure relates generally to a telecommunications wire including an electrical conductor and a dielectric insulator surrounding the electrical conductor. The dielectric insulator defines a plurality of channels defining void space containing a material having a low dielectric constant such as air. The channels each run along a length of the electrical conductor. The channels are configured to lower an overall dielectric constant of the dielectric insulator while maintaining desirable mechanical properties such as crush resistance.

The present disclosure relates generally to a telecommunications wire including an electrical conductor and a dielectric insulator surrounding the electrical conductor. The dielectric insulator defines a plurality of channels defining void space containing a material having a low dielectric constant such as air. The channels each run along a length of the electrical conductor. The channels are configured to lower an overall dielectric constant of the dielectric insulator while maintaining desirable mechanical properties such as crush resistance.

A communication cable that has a reduced diameter while ensuring a required magnitude of characteristic impedance. The communication cable contains a twisted pair that contains a pair of insulated wires twisted with each other and a sheath covering the twisted pair. Each of the insulated wires contains a conductor that has a tensile strength of 400 MPa or higher and an insulation coating that covers the conductor. A gap G is formed between the sheath and the insulated wires constituting the twisted pair. The communication cable has a characteristic impedance of 10010 .

A communication cable that has a reduced diameter while ensuring a required magnitude of characteristic impedance. The communication cable contains a twisted pair that contains a pair of insulated wires twisted with each other and a sheath covering the twisted pair. Each of the insulated wires contains a conductor that has a tensile strength of 400 MPa or higher and an insulation coating that covers the conductor. A gap G is formed between the sheath and the insulated wires constituting the twisted pair. The communication cable has a characteristic impedance of 10010 .

A communication cable that has a reduced diameter while ensuring a required magnitude of characteristic impedance. The shielded communication cable contains a twisted pair containing a pair of insulated wires twisted with each other. Each of the insulated wire contains a conductor that has a tensile strength of 400 MPa or higher, and an insulation coating that covers the conductor. The shielded communication cable 1 further contains a shield that is made of a conductive material and surrounds the twisted pair. The shielded communication cable has a characteristic impedance of 10010.

A communication cable that has a reduced diameter while ensuring a required magnitude of characteristic impedance. The shielded communication cable contains a twisted pair containing a pair of insulated wires twisted with each other. Each of the insulated wire contains a conductor that has a tensile strength of 400 MPa or higher, and an insulation coating that covers the conductor. The shielded communication cable 1 further contains a shield that is made of a conductive material and surrounds the twisted pair. The shielded communication cable has a characteristic impedance of 10010.

The present disclosure relates to a telecommunications cable. The telecommunication cable includes a plurality of twisted pairs of insulated wires extending substantially along a longitudinal axis of the telecommunications cable. Each insulated wire of the plurality of twisted pairs of insulated wires includes a conductor and an insulation surrounding the conductor. The insulation includes a first insulation layer defining a plurality of channels disposed around a peripheral surface of the conductor. In addition, the insulation includes a second insulation layer disposed circumferentially around the first insulation layer. Moreover, the insulation includes a third insulation layer disposed circumferentially around the second insulation layer. Furthermore, the telecommunication cable includes a separator and a first layer defining the outer jacket of the telecommunication cable.

The present disclosure relates to a telecommunications cable. The telecommunication cable includes a plurality of twisted pairs of insulated wires extending substantially along a longitudinal axis of the telecommunications cable. Each insulated wire of the plurality of twisted pairs of insulated wires includes a conductor and an insulation surrounding the conductor. The insulation includes a first insulation layer defining a plurality of channels disposed around a peripheral surface of the conductor. In addition, the insulation includes a second insulation layer disposed circumferentially around the first insulation layer. Moreover, the insulation includes a third insulation layer disposed circumferentially around the second insulation layer. Furthermore, the telecommunication cable includes a separator and a first layer defining the outer jacket of the telecommunication cable.

A communication cable includes an insulation electric wire including a conductor having tensile strength of 400 MPa or more and a cross-sectional area of 0.22 mm.sup.2 or less and a covering layer covering the conductor and being formed of an insulating material, and a sheath covering an outer periphery of the insulation electric wire and being formed of a resin composition containing crystalline polyolefin. A tensile elastic modulus of the sheath is 500 MPa or less, and a mass increase rate of the sheath is less than 50 mass % in a plasticizer migration test involving exposure in an atmosphere at 105? C. for 3,000 hours. Characteristic impedance of the communication cable is 100?10?.