FIELD: electricity.
SUBSTANCE: in shielded symmetrical four-pair cable of Category 7 with improved characteristics, which includes conductors in polymer insulation, a drain conductor, each pair is in polyether aluminium foil, an external shield is made from foil and braiding and an external polymer cover, each symmetrical pair in a metal polymer band with metal to outer side with overlapping of the edges throughout the cable length is separated from the adjacent symmetrical pair in a metal polymer band with metal to the outer side with overlapping of edges throughout the cable length by an introduced hollow metal polymer tube with metal to the outer side, as a result of which there created is a lay of four metal polymer tubes with metal to the outer side and four symmetrical pairs in metal polymer bands with metal to the outer side with overlapping of edges throughout the cable length, which are separated from each other with hollow metal polymer tubes with metal to the outer side; with that, this lay is twisted with a large pitch around a central hollow metal polymer tube with metal to the outer side, the outer diameter of which is equal to two diameters of the symmetrical pair with metal polymer bands; with that, the hollow metal polymer tubes between the symmetrical pairs in metal polymer bands have the same outer diameter equal to outer diameters of the symmetrical pairs in metal polymer bands.
EFFECT: reduction of mutual influence between pairs and simpler access to each conductor.
1 dwg
