A shielded electrical ribbon cable includes adjacent first and second longitudinal conductor sets where each conductor set includes two or more insulated conductors. The first conductor set also includes a ground conductor that generally lies in the plane of the insulated conductors of the first conductor set. At least 90% of the periphery of each conductor set is encompassed by a shielding film. First and second non-conductive polymeric films are disposed on opposite sides of the cable and form cover portions substantially surrounding each conductor set, and pinched portions on each side of each conductor set. When the cable is laid flat, the distance between the center of the ground conductor of the first conductor set and the center of the nearest insulated conductor of the second conductor set is 1, the center-to-center spacing of the insulated conductors of the second conductor set is 2, and 1/2 is greater than 0.7.

A twinax cable 100 includes a twinax structure, the twinax structure including: a signal wire pair, the signal wire pair including a pair of signal wires formed of a first signal wire and a second signal wire, and an insulating layer configured to cover the pair of signal wires; a drain wire; and a shield tape arranged on the outer circumferential side of the insulating layer to cover the signal wire pair and the drain wire. The insulating layer is mainly composed of polyethylene. The insulating layer includes not less than 30 ppm and not more than 4000 ppm of a hindered phenol-based antioxidant. A dielectric tangent tan of the insulating layer at the time of application of a high-frequency electric field having a frequency of 10 GHz is not more than 3.010.sup.4.

A shielded electrical ribbon cable includes adjacent first and second longitudinal conductor sets where each conductor set includes two or more insulated conductors. The first conductor set also includes a ground conductor that generally lies in the plane of the insulated conductors of the first conductor set. At least 90% of the periphery of each conductor set is encompassed by a shielding film. First and second non-conductive polymeric films are disposed on opposite sides of the cable and form cover portions substantially surrounding each conductor set, and pinched portions on each side of each conductor set. When the cable is laid flat, the distance between the center of the ground conductor of the first conductor set and the center of the nearest insulated conductor of the second conductor set is ?1, the center-to-center spacing of the insulated conductors of the second conductor set is ?2, and ?1/?2 is greater than 0.7.

An edge insulated electrical cable includes an electrical cable and an edge insulation structure applied to the electrical cable at the location. An apparatus for applying edge coating to a film is also disclosed.

The present invention discloses a flat cable, which comprises signal unit sets and the insulating layer which wraps and fixes the signal unit set. The signal unit set is formed by at least two signals units arranged substantially on the same plane at an interval or side by side. The left and right sides of the signal unit set are directly wrapped by insulating layers. The insulating layer is formed by splicing and bonding at least one insulating film, and the splicing points at two ends of the insulating film are located on the upper side or the lower side of the signal unit set. In the flat cable of the present invention, the length of the overlapping portion can be set as required, effectively preventing the phenomenon such as insulating film tear and short circuit caused by insulating film tear.

A flat cable (100) includes plural wires (10), an insulative layer (20) enclosing the wires, a metal shielding layer (30) enclosing the insulative layer, and a jacket (40) enclosing the metal shielding layer. The wires include plural pairs of differential wires (11) for transmitting high speed signals. The pairs of differential wires are evenly arranged in two rows, and each pair of differential wires is axially symmetrically arranged in the up and down direction.

A universal cable system includes a cable, which may include a keyed profile and an optional, integrated pull cable for low-voltage applications in residential and commercial structures, both old and new construction, which may further includes a connector, which does not require individual splicing of the wires from the cable. The connector may be self-crimping or crimped with a tool. During installation of the connector onto the cable, conductors in the connector may be simultaneously spliced to the wires of the cable during crimping.

An edge insulated electrical cable includes an electrical cable and an edge insulation structure applied to the electrical cable at the location. A die assembly for applying edge coating to a film is also disclosed.

A shielded electrical ribbon cable includes adjacent first and second longitudinal conductor sets where each conductor set includes two or more insulated conductors. The first conductor set also includes a ground conductor that generally lies in the plane of the insulated conductors of the first conductor set. At least 90% of the periphery of each conductor set is encompassed by a shielding film. First and second non-conductive polymeric films are disposed on opposite sides of the cable and form cover portions substantially surrounding each conductor set, and pinched portions on each side of each conductor set. When the cable is laid flat, the distance between the center of the ground conductor of the first conductor set and the center of the nearest insulated conductor of the second conductor set is ?1, the center-to-center spacing of the insulated conductors of the second conductor set is ?2, and ?1/?2 is greater than 0.7.

A two-core flat cable includes a pair of metal wires, an insulating covering that bundles and covers the pair of metal wires along a longitudinal direction thereof, an electrically conductive shield that covers an entire perimeter surface of the covering, and an insulating sheath that covers the shield, wherein the shield is comprised of a metal coating laver, and the sheath is comprised of a lamination sheet of an insulating resin.