Complex cable

A composite cable and cable tube technology, which is applied in the direction of insulated cables, communication cables, cables, etc., can solve the problems of large outer diameter and small flexibility

Inactive Publication Date: 2007-06-20
NEXANS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Such a cable consisting of at least two pairs of copper wires and two multicore plastic optical fibers has an outer diameter that is too large for the described blow-in technique and is also very little flexible
So this known composite cable can only be designed for house distribution cables

Method used

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  • Complex cable

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Embodiment Construction

[0019] The composite cable consists of a pair of copper wires consisting of two insulated copper wires 1 and 2, two optical fibers 3 and 4, a sheath 5, and a cable core surrounded by the copper wire pair and the optical fibers 3 and 4. The coating consists of 6 layers.

[0020] The insulated copper wires 1 and 2 each consist of a conductor 1a, 2a which can be formed as a single copper wire or as a plurality of copper wires.

[0021] The copper wires 1a, 2a are surrounded by a first insulating layer 1b, 2b made of foamed polyethylene. A second insulating layer 1c, 2c of non-foamed polyethylene is arranged on the first insulating layer 1b, 2b. Such insulation structures are known per se in telecommunication cable technology and are referred to as foam sheaths. Insulated copper wires are twisted to each other and constitute the copper wire pairs.

[0022] The optical fibers 3 and 4 consist of glass fibers or plastic fibers 3a, 4a which, as is known, consist of an optical core ...

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Abstract

The invention relates to a composite cable which is laid by being drawn or blown into a cable tube, which has: a) at least two insulated copper wires (1, 2) which are stranded with one another, and b) at least one single-fiber optical waveguide (3, 4) and c) a cable sheath (5). The insulation of the copper wires has an inner layer (1b, 2b) with foamed polymer and an outer layer (1c, 2c) including an unfoamed polymer (foam skin). The optical waveguide(s) (3, 4) being arranged in the stranding gaps in the insulated copper wires (1, 2) which are stranded with one another, and reinforcing elements (5a) are made from a material having a high tensile strength being embedded in the sheath (5).

Description

technical field [0001] The invention relates to a composite cable laid by drawing or blowing into a cable duct. Background technique [0002] DE 10149122 discloses a composite cable comprising an insulated copper wire and a plurality of optical fibers, in which a plurality of conductors twisted in pairs each comprising a pair of insulated copper wires is used. These insulated copper wire pairs are twisted together with different lay lengths. Each optical fiber is designed as a multicore-plastic optical fiber. The pair-twisted copper wires and multi-core plastic optical fibers are arranged adjacent to each other and all the pair-twisted copper wires and multi-core plastic optical fibers are twisted to each other. [0003] Such a cable, which consists of at least two pairs of copper wires and two multicore plastic optical fibers, has an outer diameter that is too large for the described blow-in technique and is also less flexible. This known composite cable can therefore on...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B11/22H01B7/17H01B3/44G02B6/44
CPCG02B6/4416H01B7/183H01B11/22H01B11/02H01B7/0018H01B3/08
Inventor 哈拉尔德·比瑟哈拉尔德·海曼斯格尔德·弗登霍尔文
Owner NEXANS
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