A cable for transmitting electrical signals including an outer casing made of an electrically insulating material and at least N lines n with N2 and NN which are arranged within the outer casing, wherein each line m has a total of M wires made of an electrically conductive material with M1 and MN, wherein the wire m with m[1, M], mN, the line n with n E [1, N], nN is surrounded by a dielectric having a predetermined value for the relative permittivity er(m,n)>1, wherein for each line n the value for the relative permittivity of the dielectrics (24. 26. 28. 30) of the wires (16, 18, 20, 22) of this line n is identical, except for deviations resulting from the manufacturing process, so that er(p.Math.n)=er(p+q,n), where q[1, Mp], qNp [1, M1], pN.

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.

The invention relates to a cable for transmitting electrical signals, comprising an outer casing made of an electrically insulating material and at least N lines n with N2 and N|N, which are arranged inside the outer casing, wherein each line m has a total of M wires made of an electrically conductive material with M1 and M|N, wherein the wire m with [1,M], m|N of the line n with n[1,N], n|N is surrounded by a dielectric having a predetermined value for the relative permittivity r(m,n)>1. The following applies for at least two different lines: n=j and n=(j+s) r(m,j)=r(m,j+s)k(s) with m[1,M], m|N, j[1,N1], j|N, s[1, Nj], s|N, wherein k(s) and k(s)[2.0, 0,01] and k(s)[0.01,2.0].

The present disclosure provides a jacket for use in a telecommunications cable. The jacket includes a jacket body. The jacket body extends along a longitudinal axis of the telecommunications cable. The longitudinal axis passes through a geometrical center of the telecommunications cable. The jacket body includes a first surface. The first surface surrounds core region of the telecommunications cable. The first surface defines a plurality of grooves extending radially outwardly from the longitudinal axis of the telecommunications cable. The plurality of grooves includes a first groove area section and a second groove area section. The first groove area section and the second groove area section are in continuous contact with each other. In addition, the jacket body includes a second surface. The second surface extends along the longitudinal axis of the telecommunications cable and disposed in a spaced relation to the first surface.

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.

Provided is a LAN cable that includes a sheath; an electrical wire accommodated in the sheath and including a conductor and an insulating body covering the conductor; and an intermediate layer having a mass reduction rate at 500? C. of less than or equal to 10% by mass and a mass reduction rate at 600? C. of less than or equal to 50% by mass, and located between the sheath and the electrical wire. The insulating body includes polyethylene having a dielectric constant of smaller than or equal to 2.5. The sheath includes a polyolefin-based polymer and a flame retardant, and a content of the flame retardant in the sheath is greater than or equal to 150 parts by mass with respect to 100 parts by mass of the polyolefin-based polymer.

A cable arrangement of at least two cables which extend adjacently in a substantially parallel manner, a first cable and a second cable of which each having at least one stranding group which has two or more conductors that are twisted together. The length of lay of each of the stranding groups varies in the longitudinal direction of the individual cables. In addition, the length of lay of a stranding group winding of the stranding group of the first cable is smaller than the length of lay of a most directly adjacent stranding group winding of the stranding group of the second cable.

To provide a LAN cable. A LAN cable includes an insulated electrical wire having an insulating layer on an outer periphery of a conductor, a sheath that coats an outer periphery of the insulated electrical wire, and an intermediate layer arranged between the sheath and the insulated electrical wire, the intermediate layer having a mass reduction rate at 800? C. of less than or equal to 80% by mass. The sheath includes a cross-linked matter or a non-halogen flame retardant resin composition in which a mass reduction rate at 800? C. is less than or equal to 60% by mass.

A shielded cable includes adjacent first and second conductor sets, each conductor set includes a pair of insulated conductors. At least 90% of a periphery of each conductor set is encompassed by a shielding film. The cable also includes first and second non-conductive polymeric films disposed on opposite sides of the cable. The polymeric films include cover portions and pinched portions. In transverse cross section, the cover portions of the polymeric films in combination surround the conductor sets, and the pinched portions of the polymeric films in combination form pinched portions of the cable on each side of the cable. When the cable is laid flat, a center-to-center spacing of the pair of insulated conductors for the first conductor set is ?1 and a center-to-center spacing of the first and second conductor sets is ?. ?/?1 is less than 4.

A cable may include a plurality of twisted pairs of individually insulated conductors and a separator positioned between the plurality of twisted pairs. The separator may include a first longitudinally extending tape structure having a first longitudinal fold formed between its widthwise edges and a second longitudinally extending tape structure having a second longitudinal fold formed between its widthwise edges. Additionally, the first tape structure and the second tape structure may be bonded together along a longitudinally extending line proximate to the first and second longitudinal folds. A jacket may be formed around the plurality of twisted pairs and the separator.