Optical cable and method for production of an optical cable
First Claim
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1. An optical cable, comprising:
- a cable core with a plurality of optical transmission elements, each optical transmission element including at least one optic fiber;
a first sleeve made from a material containing paper, the first sleeve surrounding the plurality of optical transmission elements, the paper having a tear strength which is less than 16 newtons per square millimeter;
at least one yarn arranged in a region of the cable core between the first sleeve and the plurality of optical transmission elements, the at least one yarn comprising a swellable material; and
a cable jacket surrounding the first sleeve and containing a plastics material.
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Abstract
An optical cable comprises a swelling yarn, around which several optical transmission elements in the form of micromodules are arranged. A micromodule comprises a bundle of optic fibers, which are surrounded by a sleeve made from a material of plastic. Further swelling yarns are arranged around the optical transmission elements. The optical transmission elements and the swelling yarns are surrounded by a sleeve of paper. The paper sleeve is surrounded by a cable jacket made from a material of plastic. When an optic fiber is exposed, the cable jacket is pulled off, whereupon the paper sleeve tears off and can consequently be easily removed.
17 Citations
27 Claims
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1. An optical cable, comprising:
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a cable core with a plurality of optical transmission elements, each optical transmission element including at least one optic fiber; a first sleeve made from a material containing paper, the first sleeve surrounding the plurality of optical transmission elements, the paper having a tear strength which is less than 16 newtons per square millimeter; at least one yarn arranged in a region of the cable core between the first sleeve and the plurality of optical transmission elements, the at least one yarn comprising a swellable material; and a cable jacket surrounding the first sleeve and containing a plastics material. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method for the production of an optical cable, comprising:
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providing a cable core, each cable core having a plurality of optical transmission elements, each optical transmission element containing at least one optic fiber, and at least one yarn containing a water-swellable material, being arranged around the plurality of optical transmission elements; surrounding the cable core with a first sleeve containing a paper material, wherein the first sleeve is provided with a tear strength which is less than 16 newtons per square millimeter; and extruding a plastic jacket comprising a plastics material around the first sleeve. - View Dependent Claims (21, 22, 23, 24, 25, 26)
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27. An optical cable, comprising:
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a cable core with a plurality of optical transmission elements, which respectively contain at least one optic fiber; a first sleeve made from a material containing paper having tear strength of less than 16 newtons per square millimeter, the first sleeve surrounding the plurality of optical transmission elements; at least one yarn, which is arranged in a region of the cable core between the first sleeve and the plurality of optical transmission elements, the at least one yarn comprising a swellable material, and the at least one yarn including a centrally arranged yarn, around which the plurality or optical transmission elements are arranged; and a cable jacket surrounding the first sleeve amid containing a plastics material, wherein, the optical cable has a diameter between 3.5 and 6.5 millimeters.
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Specification