Optical cable with external symmetrical reinforcements

A strength member, external technology, applied in the field of external symmetrical strength member optical cable, can solve the problems of inconvenient use of optical cable divergence, difficulty in cable stripping, increase of cable weight and raw material cost, etc., to achieve good indoor laying performance, excellent self-supporting Effects of aerial laying performance and convenient self-supporting aerial laying performance

CN105676397AInactive Publication Date: 2016-06-15YANGTZE OPTICAL FIBRE & CABLE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2016-06-15
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to an optical cable with external symmetrical reinforcements. The optical cable comprises an outer sheath and a cable core wrapped in the outer sheath. The periphery of the outer sheath is circular. The optical cable is characterized in that lugs protruding outwards are symmetrically arranged on two sides at the periphery of the outer sheath; the reinforcements are embedded in the lugs. The external parallel reinforcements protruding from the outer sheath are symmetrically arranged on two sides of the outer sheath to be used as tensile components, and compared with a conventional optical cable provided with reinforcements embedded in an outer sheath and having a circular section, the separation of the reinforcements from the optical cable can be facilitated, and stripping and laying of the optical cable are also facilitated; the thicknesses and the diameters of the optical cables of the same specifications are relatively reduced, so that materials are saved, the optical cable manufacturing cost is reduced, and the weight of the optical cable is reduced. The optical cable is suitable for direct bury and pipeline laying, has high self-supporting overhead laying performance, and after the reinforcements are separated from the optical cable, the optical cable has a high bending property and a high indoor laying property. The optical cable can be used for a backbone network and an access network, and is wide in application range.
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Description

technical field

[0001] The invention relates to an external symmetrical strength member optical cable used in the field of optical communication. Background technique

[0002] The strength members on both sides of the existing symmetrical strength member optical cable are completely embedded in the outer sheath of the circular cross-section. This kind of strength member is embedded in the outer sheath layer. In order to ensure the quality of the outer sheath, the outer side of the strength member The distance from the outer edge of the outer sheath is generally not less than 1.0mm, and the minimum thickness of the outer sheath of the entire optical cable is generally not less than 2.0mm, which not only increases the weight of the optical cable and the cost of raw materials, but also makes it difficult to strip the optical cable. It is inconvenient to use. Contents of the invention

[0003] The technical problem to be solved by the present invention is to provide an extern...

Examples

Embodiment Construction

[0019] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0020] The first embodiment of the present invention is figure 1 As shown, there is a central tube type cable core, and the cable core includes a single loose tube 5, and an optical communication unit 4 is laid in the loose tube, and the optical communication unit can be an optical fiber, an optical fiber bundle, an optical fiber ribbon or a tight sleeve fiber; the cable core is coated with a water-blocking element 2, and the water-blocking element is a water-blocking yarn or a water-blocking tape; Cover the outer sheath. The outer sheath 1 with a circular cross-section is covered by the armor layer or the reinforcement layer, and outwardly protruding lugs 9 are arranged symmetrically on both sides of the outer periphery of the outer sheath, and the lugs on both sides are parallel, and the cross-section of the lugs is It is in the shape of a large semi...