CN201477261U

CN201477261U - Double internally-armored submarine optical fiber cable core containing copper wires

Info

Publication number: CN201477261U
Application number: CN2009202330570U
Authority: CN
Inventors: 徐军; 李万盟; 唐进明; 王绍刚; 黄俊华
Original assignee: JIANGSU TONGGUANG ELECTRONIC CO Ltd
Current assignee: Jiangsu Tongguang Ocean Optoelectronic Technology Co., Ltd.
Priority date: 2009-07-14
Filing date: 2009-07-14
Publication date: 2010-05-19
Anticipated expiration: 2019-07-14

Abstract

A double internally-armored submarine optical fiber cable core containing copper wires is characterized in that an optical fiber unit is taken as a core, a double internally-armored structure is formed by coating a first internally-armored layer and a second internally-armored layer containing copper wires outside the core in sequence from inside to outside. The utility model has the advantages of good tensile strength and lateral pressure resistant performance, simple structure, easy manufacture and low cost, and can be extensively used as the submarine optical fiber cable core with or without a relay amplifier adopting a single-layer armored, double-layer armored or multi-layer rock shaped armored structure, and can be directly laid in deep-water sea areas or along shallow coastlines.

Description

Armour submarine optical fiber cable cable core in copper-containing lines is two

Technical field

The utility model relates to a kind of submarine optical fiber cable of optical fiber communication, i.e. the two interior armour submarine optical fiber cable cable cores of copper-containing lines.

Background technology

Existing structure of submarine optical fiber cable comprises the cable core of light unit and armoured, and armoured part duplicates, and the key distinction is in cable part.Cable core is made up of fiber unit and insulating sheath two parts, in addition, according to transmission system and operation maintenance requirement, is provided with in the insulating sheath of cable core and detects and electricity supply element.The good airproof performance of existing stainless-steel tube fiber unit, corrosion-resistant, size is little, and is flexible, but that its weak point is the wall thickness of stainless-steel tube fiber unit is thinner, the opposing external force ability a little less than, be subject to that anchor draws, shock-produced deformation, compressing pipe inner fiber even fracture, the cable core of band measuring ability requires direct current resistance≤6 Ω/km, prior art is that the less copper strips of vertical bag one layer thickness is realized outside the stainless steel unit, but the stainless-steel tube fiber unit is not had protective effect; The cable core of existing band feed function requires direct current resistance≤1 Ω/km, and its structure is to coat one or two layers of seizing wire outside the stainless-steel tube fiber unit, and the outsourcing copper strips satisfies the conduction requirement again, and this structure and manufacturing process are complicated, and cost is higher.Above-mentioned two kinds of cable core structure differences of prior art cause the production model too much, and cost increases, can not be general in application, and make troubles for production and use.

Summary of the invention

In order to overcome the above-mentioned deficiency of existing submarine optical fiber cable cable core, the utility model provides a kind of copper-containing lines two interior armour submarine optical fiber cable cable cores, make it when satisfying detection and feed function, improve the tensile strength and the lateral pressure resistant performance of cable core, can be used as armoured is the cable core of the submarine optical fiber cable that relaying or non-relay amplifier are arranged of individual layer armouring, double armor or multilayer rock shape armouring, can directly be laid in deep water sea area or shallow sea water front.

The utility model realizes that the technical scheme that its purpose is taked is: armour submarine optical fiber cable cable core in a kind of copper-containing lines is two, first internal armored layer, second internal armored layer and insulating sheath layer by fiber unit, copper-containing lines are formed, it is characterized in that the fiber unit that constitutes with the protection tube that includes optical fiber and fine cream is the center, its outside from inside to outside coat successively first internal armored layer of copper-containing lines and second internal armored layer constitute two in the armour structure, outside it, extrude the insulating sheath layer; The radical of copper-containing lines is one, two or many in the first above-mentioned internal armored layer, perhaps whole radicals of first internal armored layer; The steel wire of above-mentioned first internal armored layer and the equal diameters of copper cash, the equal diameters of the second internal armored layer steel wire diameter and the first internal armored layer steel wire or copper cash does not perhaps wait; Above-mentioned first internal armored layer is concentric lay configuration in the same way with the steel wire or the copper cash of second internal armored layer; Between the line of inner armor steel wire and copper cash and the line and layer with layer between all clearance filled fine cream that block water.

The tensile strength and the lateral pressure resistant performance that the utility model has the advantages that cable core are good, simple in structure, easily make, cost is low, being widely used as armoured is the individual layer armouring, the submarine optical fiber cable cable core that relaying or non-relay amplifier are arranged of double armor or multilayer rock shape armouring can directly be laid in deep water sea area or shallow sea water front.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is the utility model cross-sectional structure figure.

In Fig. 1: 1. fiber unit, 2. first internal armored layer, 3. second internal armored layer, 4. copper cash, 5. insulating sheath layer.

Embodiment

In Fig. 1, armour submarine optical fiber cable cable core in a kind of copper-containing lines is two, first internal armored layer (2), second internal armored layer (3) and insulating sheath layer (5) by fiber unit (1), copper-containing lines (4) are formed, it is characterized in that the fiber unit (1) that constitutes with the protection tube that includes optical fiber and fine cream is the center, its outside from inside to outside coat successively first internal armored layer (2) of copper-containing lines (4) and second internal armored layer (3) constitute two in the armour structure, outside it, extrude insulating sheath layer (5); The radical of copper-containing lines (4) is one, two or many in above-mentioned first internal armored layer (2), perhaps whole radicals of first internal armored layer (2) are with the requirement of the cable core direct current resistance≤1 Ω/km of the dc resistance≤6 Ω/km of the cable core that satisfies the band measuring ability and band feed function; The armouring wire in above-mentioned first internal armored layer and the equal diameters of copper cash, the equal diameters of the second internal armored layer steel wire diameter and the first internal armored layer steel wire or copper cash or do not wait; Above-mentioned first internal armored layer (2) is concentric lay configuration in the same way with the steel wire or the copper cash of second internal armored layer (3); Between the line of internal armored layer (2,3) and copper cash (4) and the line and layer with layer between all clearance filled fine cream that block water.

The tensile strength and the lateral pressure resistant performance that the utility model has the advantages that cable core are good, can be widely used as armoured is the cable core of seabed optical cable that relaying or non-relay amplifier are arranged of individual layer armouring, double armor or multilayer rock shape armouring, can directly be laid in deep water sea area or shallow sea water front.

Claims

A copper-containing lines two in armour submarine optical fiber cable cable cores; form by fiber unit (1), first internal armored layer (2), second internal armored layer (3), copper cash (4) and insulating sheath layer (5); it is characterized in that with the fiber unit (1) that includes optical fiber and the protection tube of the fine cream that blocks water constitutes be the center; first internal armored layer (2), second internal armored layer (3) that from inside to outside coats copper-containing lines (4) successively in its outside constitute two in the armour structure, it extrudes insulating sheath layer (5) outward.
2. armour submarine optical fiber cable cable core in copper-containing lines according to claim 1 is two is characterized in that the radical of copper-containing lines in first internal armored layer (2) is one, two or many, perhaps whole radicals of first internal armored layer.
3. armour submarine optical fiber cable cable core in copper-containing lines according to claim 1 is two, the equal diameters that it is characterized in that the first internal armored layer armouring wire and copper cash (4), the equal diameters of second internal armored layer (3) steel wire diameter and the first internal armored layer steel wire or copper cash (4) or do not wait.
4. armour submarine optical fiber cable cable core in copper-containing lines according to claim 1 is two is characterized in that first internal armored layer (2) and second internal armored layer (3) are concentric lay configuration in the same way.
5. armour submarine optical fiber cable cable cores in copper-containing lines according to claim 1 is two, it is characterized in that between two internal armored layers (2,3) structure line and line and layer and layer between gapped in the filling cable cream that blocks water.