An electrical cable includes a conductor assembly having conductors and an insulator. The electrical cable includes a cable shield wrapped around the conductor assembly having an inner edge at a first end segment and an outer edge at a second end segment. The second end segment is wrapped over the inner edge and the first end segment to form a flap covering the inner edge and the first end segment. The second end segment forms a void at the inner edge. The electrical cable includes a void shield on the outer surface between the insulator and the cable shield. The void shield extends between a first end and a second end. The void shield is aligned with the void and spans entirely across the void. The cable shield is electrically connected to the void shield.

An electrical cable includes a conductor assembly having conductors and an insulator. The electrical cable includes a cable shield wrapped around the conductor assembly having an inner edge at a first end segment and an outer edge at a second end segment. The second end segment is wrapped over the inner edge and the first end segment to form a flap covering the inner edge and the first end segment. The second end segment forms a void at the inner edge. The electrical cable includes a void shield on the outer surface between the insulator and the cable shield. The void shield extends between a first end and a second end. The void shield is aligned with the void and spans entirely across the void. The cable shield is electrically connected to the void shield.

A shielded electrical cable includes conductor sets extending along a length of the cable and spaced apart from each other along a width of the cable. First and second shielding films are disposed on opposite sides of the cable and include cover portions and pinched portions arranged such that, in transverse cross section, the cover portions of the films in combination substantially surround each conductor set. An adhesive layer bonds the shielding films together in the pinched portions of the cable. A transverse bending of the cable at a cable location of no more than 180 degrees over an inner radius of at most 2 mm causes a cable impedance of the selected insulated conductor proximate the cable location to vary by no more than 2 percent from an initial cable impedance measured at the cable location in an unbent configuration.

Electrical cables are disclosed can include at least one electrical conductor, an inner electrical insulator that surrounds the at least one electrical conductor, and an electrical shield disposed about the inner electrical insulator. The electrical cables can include an electrically conductive material disposed between adjacent layers of the electrical cable. In one example, an electrical coating can be disposed in the electrical shield, for instance, in regions of overlap. Flowable electrically conductive materials are also disclosed that can flow into gaps during operation of the electrical cable.

The subject matter of the present disclosure may be embodied in devices, such as flexible wiring, that include: an elongated flexible substrate; multiple electrically conductive traces arranged in an array on a first side of the elongated flexible substrate; and an electromagnetic shielding layer on a second side of the elongated flexible substrate, the second side being opposite the first side, in which the elongated flexible substrate includes a fold region between a first electronically conductive trace and a second electrically conductive trace such that the electromagnetic shielding layer provides electromagnetic shielding between the first electronically conductive trace and the second electrically conductive trace.

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 method for testing a multicore cable that includes a single common shield covering plural insulated wires. The testing method includes inputting a test signal, by capacitive coupling, to an end portion of the insulated wire under test among end portions of the insulated wires exposed at one end of the multicore cable, and measuring voltages of output signals output by capacitive coupling respectively from end portions of the insulated wires exposed at the other end of the multicore cable, and identifying the other end portion of the insulated wire under test based on the measured voltages. The voltages of output signals are measured in a state that an output variation reduction capacitive element is connected in series with a coupling capacitance generated by the capacitive coupling.

A multicore cable including a plurality of two-core parallel electric wires such that the plurality of two-core parallel electric wires are twisted together, wherein the two-core parallel electric wires each includes two conductors arranged in parallel to a length direction of the two-core parallel electric wire; an insulating layer that covers a periphery of the two conductors; a first shield tape that covers a periphery of the insulating layer in a state of being longitudinally attached to the insulating layer; a drain wire arranged inside the first shield tape; and a jacket that covers the first shield tape, wherein a cross-section of the insulating layer perpendicular to the length direction of the two-core parallel electric wire is an oval shape in which a length of a major axis is 1.7 times or more and 2.2 times or less a length of a minor axis and has a groove at a portion including an intersection point between an outline of the oval shape and a perpendicular bisector of the major axis, wherein the drain wire is retained in the groove such that a portion of the drain wire protrudes toward the first shield tape with respect to the insulating layer, and wherein a twist pitch of twisting together the two-core parallel electric wires is shorter than 250 mm.

A multicore cable including a plurality of two-core parallel electric wires such that the plurality of two-core parallel electric wires are twisted together, wherein the two-core parallel electric wires each includes two conductors arranged in parallel to a length direction of the two-core parallel electric wire; an insulating layer that covers a periphery of the two conductors; a first shield tape that covers a periphery of the insulating layer in a state of being longitudinally attached to the insulating layer; a drain wire arranged inside the first shield tape; and a jacket that covers the first shield tape, wherein a cross-section of the insulating layer perpendicular to the length direction of the two-core parallel electric wire is an oval shape in which a length of a major axis is 1.7 times or more and 2.2 times or less a length of a minor axis and has a groove at a portion including an intersection point between an outline of the oval shape and a perpendicular bisector of the major axis, wherein the drain wire is retained in the groove such that a portion of the drain wire protrudes toward the first shield tape with respect to the insulating layer, and wherein a twist pitch of twisting together the two-core parallel electric wires is shorter than 250 mm.

A ribbon cable can include a plurality of spaced apart substantially parallel conductor sets. The conductor set includes a plurality of spaced apart substantially parallel conductors extending along a length of the conductor set and arranged along a width of the conductor set; first and second non-conductive structured layers disposed on opposite sides of and substantially coextensive with the plurality of conductors along the length and width of the conductor set; and a conductive shielding layer wrapped around the first and second non-conductive structured layers. Each structured layer is adhered to the conductors and includes a plurality of higher dielectric constant regions defining a plurality of lower dielectric constant regions therebetween.