CN201184918Y

CN201184918Y - Multilayer external metal-shielding seabed optical cable

Info

Publication number: CN201184918Y
Application number: CNU2007200447203U
Authority: CN
Inventors: 徐军; 黄俊华; 李万盟
Original assignee: TONGGUANG GROUP Ltd
Current assignee: TONGGUANG GROUP Ltd
Priority date: 2007-10-25
Filing date: 2007-10-25
Publication date: 2009-01-21
Anticipated expiration: 2017-10-25

Abstract

The utility model relates to a multi-layer outer armored submarine optical fiber cable which takes a cable core (1) as a core line, a plurality of layers of armored steel wires (3) are hinged at the periphery thereof, an outer coating layer (5) and a binding band (6) are further packaged at the outside for the constitution, the cable core (1) is composed of one or more optical fiber units and an inner protection layer, an anti-corrosion plating layer is covered on the surfaces of a plurality of layers of armored steel wires (3), a plurality of layers of armored steel wires are further concentrically co-directionally hinged, the number of the layers is not less than 3, the diameter of single wire of each layer of the armored steel wires (3) is not less than 0.5mm, the number of the wires is not less than 6; buffer layers (2) can be coated at the periphery of the cable core and the outsides of outward one or two layers of armored steel wires (3), the outer coating layer (5) and the possible binding band (6) are sequentially coated on the outer layer of the optical fiber cable, and asphalt (4) is filled in all the layers in the optical fiber cable and the line gaps. The multi-layer outer armored submarine optical fiber cable is widely used in the submarine optical fiber cables which are buried in shallow sea or are directly thrown on rock seabed, and the multi-layer outer armored submarine optical fiber cable has the advantages of high tensile strength, great self-gravity, difficult float and swing, good anti-side pressure and anti-friction properties and long service life.

Description

The armoured submarine optical fiber cable of multilayer

Affiliated technical field

It is the armoured submarine optical fiber cable of multilayer that the utility model relates to a kind of wear-resisting submarine optical fiber cable of high-tension that is mainly used in the shallow sea.

Background technology

According to standard GB/T18480-2001 " submarine optical fiber cable general specification " and GJB GJB4489-2002 " submarine optical fiber cable general specification ", at present, the submarine optical fiber cable that is used for the shallow sea is at cable core external application individual layer or two-layer wire armoring, the maximum tensile strength is respectively 180KN and 400KN, and it is lighter to conduct oneself with dignity.When these two kinds of Shallow water cables are laid in main channel or fishery operation area, often suffer outside destroy.Less when being used on the rock sea bed, directly casting because of the deadweight of cable, float and swing with water, thereby serious wear, serviceable life is shorter.

Summary of the invention

Low in order to overcome existing standard Shallow water cable stretching resistance, subject to outside destroy and wear no resistance, the deficiency that serviceable life is short, the utility model provides a kind of multilayer armoured submarine optical fiber cable, make its tensile strength height,, be difficult for floating and swing from great, lateral pressure resistant, wear-resistant, long service life.

The technical scheme that its technical matters that solves the utility model adopts is: the armoured submarine optical fiber cable of a kind of multilayer, form by cable core, cushion, armouring wire, stuff pitch, serving and binder, it is characterized in that with the cable core being heart yearn, at the stranded multilayer armouring wire of its periphery, outsourcing serving and binder again; Above-mentioned cable core is made up of one or more fiber units and sheath; The armoured Steel Wire Surface of multilayer is covered with anticorrosive coat and stranded in the same way with one heart with fine pith, and its number of plies is 〉=3, every layer of armouring wire line diameter 〉=0.5 millimeter, radical 〉=6; Can be coated with flexible material polypropylene rope cushion outside cable core periphery and every outside one two-layer armouring wire layer, outer armouring wire layer coats serving outward; Outer one or more layers flexible material polypropylene rope serving that coats of outermost layer armouring wire strand layer; Can wrapped one or more layers binder outside serving; Secretion pitch between all layers and interlayer and line and line in the cable.

The beneficial effects of the utility model are tensile strength 〉=500KN, and the tensile strength height from great, is difficult for floating and swing, lateral pressure resistant, and abrasion resistance properties is good, long service life.

Description of drawings

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

Fig. 1 is a kind of not with three layers of armoured submarine optical fiber cable cross-sectional view of armour in the cable core.

Fig. 2 is another kind of not with four layers of armoured submarine optical fiber cable cross-sectional view of armour in the cable core.

In Fig. 1 Fig. 2: 1. cable core, 2. cushion, 3. armouring wire, 4. stuff pitch, 5. serving, 6. presumable binder.

Embodiment

The armoured submarine optical fiber cable of a kind of multilayer, form by cable core (1), cushion (2), armouring wire (3), stuff pitch (4), serving (5) and binder (6), it is characterized in that with cable core (1) be heart yearn, at the stranded multilayer armouring wire of its periphery (3), outsourcing serving (5) and binder (6) again, above-mentioned cable core (1) can be made up of one or more fiber units and sheath; The armoured steel wire of multilayer (3) surface is covered with coating for protection against corrosion, and stranded in the same way with one heart with fine pith, and its number of plies is 〉=3, the diameter of every layer of armouring wire monofilament 〉=0.5 millimeter, radical 〉=6; Outside cable core (1) periphery and every outside one two-layer armouring wire layer, can be coated with flexible material polypropylene rope cushion (2), outer one or more layers serving (5) that coats of the armoured steel wire of outermost layer (3) strand layer; Serving (5) is outer can wrapped one or more layers binder (6), secretion pitch (4) between all interlayers in the optical cable and line and line.

Claims

1, the armoured submarine optical fiber cable of a kind of multilayer, form by cable core (1), cushion (2), armouring wire (3), stuff pitch (4), serving (5) and binder (6), it is characterized in that with cable core (1) be heart yearn, at the stranded multilayer armouring wire of its periphery (3), outsourcing serving (5) and binder (6) again.

2, the armoured submarine optical fiber cable of multilayer according to claim 1 is characterized in that cable core (1) is made up of single or a plurality of fiber units and sheath.

3, the armoured submarine optical fiber cable of multilayer according to claim 1, it is characterized in that the armoured steel wire of multilayer (3) surface is covered with coating for protection against corrosion, and stranded in the same way with one heart with fine pith, and its number of plies is 〉=3, diameter 〉=0.5 of every layer of armouring wire (3) monofilament millimeter, radical 〉=6.

4, the armoured submarine optical fiber cable of multilayer according to claim 1 is characterized in that can coating flexible material polypropylene rope cushion (2) outside cable core periphery and every outside one two-layer armouring wire (3).

5, the armoured submarine optical fiber cable of multilayer according to claim 1 is characterized in that outer one or more layers flexible material polypropylene rope serving (5) that coats of outermost layer armouring wire strand layer (3).

6, the armoured submarine optical fiber cable of multilayer according to claim 1, it is characterized in that can wrapped one or more layers binder (6) outside serving (5).

7, the armoured submarine optical fiber cable of multilayer according to claim 1 is characterized in that all layers in the cable and the secretion pitch (4) between interlayer and line and line.