FIELD: electricity.
SUBSTANCE: combined symmetrical four-pair cable with optic fibre comprises strands in polymer insulation, twisted as pairs, with an outer polymer shell, a breaking string, and each symmetric pair is separated from the adjacent symmetric pair with a module with optic fibre, as a result of which a lay is created from four modules with optic fibre, and four symmetric pairs separated from each other by modules with optical fibre, at the same time this lay is twisted with large pitch around the central hollow perforated polymer tube, the external size of which is equal to two diameters of the twisted pair, at the same time two symmetric pairs arranged on one line on opposite sides of the central polymer tube are each placed into the polymer perforated tape with coverage of edges along the entire length of the cable, and two other pairs are placed between two modules with optic fibre each, at the same time each such pair with two modules with optic fibre is placed into the polymer perforated tape with coverage of edges along the entire length of the cable.
EFFECT: reduced mutual influence between pairs.
1 dwg
