KR20180001307A - Method and structure for connection of submarine cable - Google Patents

Abstract

The present invention relates to a method and a structure for connecting a submarine cable. More specifically, the method comprises: a step of cutting the submarine cable; a step of removing a sheath of each of end portions of a pair of the cut submarine cables, arranging a plurality of cable wires in the submarine cable, fixating an armor clamp on the outer surface of the end portion, and pushing aside each of armors to attach the same to the outer surface of the armor clamp; a step of mounting a cover on each of the end portions and filling the cover with a curing agent, wherein the cover is spaced apart a predetermined distance from the armor clamp; a step of removing a protective layer from each of end portions of the plurality of cable wires to expose a part of the wire; a step of respectively connecting a pair of the wires opposite to each other; a step of coupling an insulation case to an outer side of a connection portion of the wires and filling the insulation case with an insulation agent; and a step of coupling a housing between a pair of the covers, installing a communication wire in the housing, and filling the housing with the curing agent. Accordingly, the method and the structure for connecting a submarine cable facilitate a connection operation of the submarine cable in the field, maximize the stability of the connection portion and convenience of conducting a watertight operation and a ground operation, and prevent the sudden bending of the wire at an end portion of an entry/exit hole of a connection box main body caused by the flow of current or an anchor of a ship.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a submarine cable connection method,

The present invention relates to a submarine cable connection connection method and a connection connection structure. More particularly, the present invention relates to a method and apparatus for connecting a submarine cable to a submarine cable, which is capable of maximizing the ease of submarine cable connection in the field, the stability of the connection, A submarine cable connection method and a connection connection structure for preventing breakage.

In general, submarine cables are laid down on the seabed for the purpose of power supply or communication between land and marine infrastructure, between countries, or between land and land. In Korea, 180kV super-high voltage submarine cable was installed between Jeju and Jeonnam and Haenam in Jeollanam-do, and 22.9kV submarine cable was installed in 20 locations including Jeonnam, Jangsan and Doja Island. Especially, it is being installed or planned to be installed or installed in the offshore wind power generation facility for power supply and communication purpose.

1 is a cross-sectional view of a submarine cable. As shown in FIG. 1, a conventional submarine cable 100 at an intermediate voltage of less than 50 kV and a high voltage range of more than 50 kV may be connected to one or more conductors (one cable for single phase power transport or communication, three Cable-multicore cable).

At this time, in order to protect the inner cable 10 or the communication line 2 against damages of the submarine cable 100 caused by the flow of seawater or anchor of the ship or the generated tension, In order to enhance the mechanical properties and performance, an armor (3), which is a structural reinforcement composed of metal wires, is constructed to surround the outer circumference of the submarine cable.

Therefore, when the submarine cable is connected (for example, a straight line, a terminal, a switch, or a GIS connection), the cable 3 and the communication line 2 inside the submarine cable There is no choice but to connect. The connection of the submarine cable 100 is unstable due to the tensile force applied to the armature 3 when the armature 3 is pushed to the rear of the connection portion.

To solve this problem, US 4,644,097 discloses an armature clamp for capturing the end of an armature. However, these amoa clamps are not sufficient to withstand the tensile force because the armature is not firmly fixed, that space is generated in the bending portion of the armature and that it is not uniformly curved, that the armature is not arranged at regular intervals, There is a problem that the shipbuilder must be wound around the amoa and pulled out and grounded.

Therefore, it is required that the armature is securely fixed at the connection portion of the submarine cable, is easily grounded, and the armature is arranged at a predetermined interval. Particularly, when the cable is connected to the granular surface, since the inside of the cable is exposed to the outside, an amorous clamp advantageous for waterproof treatment is required to prevent corrosion of the cable.

US 4,644,097 Patent No. 20-0444333

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is, therefore, an object of the present invention to provide an amorous clamp which is easy to connect the submarine cable in the field, It is an object of the present invention to provide a connection and connection structure of a submarine cable for preventing a sudden breakage of a cable by a bird flow or a ship anchor at an inlet / .

It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are not intended to limit the invention to the precise form disclosed. It can be understood.

A first object of the present invention is to provide a submarine cable connection connecting method comprising: cutting a submarine cable; A plurality of cable lines in the submarine cable are assembled, an armature clamp is fixed to the outer surface of the end portion, and the armature clamp is fixed to the outer surface of the armature clamp so as to be in close contact with the outer surface of the armature clamp. Stepping each of the mowers backward; Attaching a cover to each of the end portions so as to be spaced apart from the armature clamp by a specific distance, and filling the inside of the cover with a hardening agent; Removing a protective layer at an end of each of the plurality of cable lines to expose a portion of the wire; Connecting each of a pair of conductors opposite to each other; Coupling the insulating tube to the outside of the connecting portion of the lead and filling the insulating tube with the insulating material; And connecting the housing between the pair of covers, wiring the communication in the housing, and filling the hardening agent into the housing.

Further, in the above step, the armature clamp is connected to the end of the outer shell of the submarine cable so that one side of the inverted conical shape having a larger diameter of the distal end faces the connecting portion of the submarine cable, A reverse cone part having a curved surface protruding in the direction of the connection part on one side so as to be closely contacted with the amoer on the one side; And a cylindrical portion which is formed in a cylindrical shape and is coaxial with the inverted conical portion on the other side where the diameter of the distal end of the inverted conical portion is smaller and the cable hole extends in the axial direction of the inverted conical portion .

And a coupling groove formed on an outer circumferential surface of the inverted conical portion so as to be shaped to be fitted to the outer circumferential surface of the armature.

In addition, a cylindrical fixing ring configured to surround the cylindrical portion with the armature interposed therebetween is fastened to the cylindrical portion.

In the step of connecting the pair of conductors, the connecting conductor is positioned between the pair of conductors, and the conductor is connected by a hydraulic press.

The method may further include forming a protective layer on the outer side of the connection conductor.

The step of forming the protective layer may include winding the outer side of the connection conductor with an insulating tape; Winding a semi-conductor layer tape outward; And winding the self-adhesive tape outwardly.

Further, the insulating cylinder may be configured such that a plurality of divided members are hinged to be openable and closable.

The second object of the present invention can be achieved as a submarine cable connection connection structure characterized in that it is connected by a connection method according to the above-mentioned first object in a submarine cable connection connection structure.

According to the embodiment of the present invention, the armature can be securely fixed at the connection portion of the submarine cable, and if the ground wire is connected to one side of the stationary ring, the step of winding the wire can be omitted, The amoa is arranged at regular intervals to enable stable connection when connecting the straight line, end terminal, switch, GIS of the submarine cable, and the amore is fixed integrally with the amore clamp, A cover is provided on the outer side of the armature clamp to prevent corrosion effectively through the armature clamp. After the cable wires are connected to each other, an insulating tape, a semiconductive tape and a self-adhesive tape are wound, So that the insulation can be effectively maintained. Finally, the cable is coupled to the outside of the plurality of connected cable lines It is possible to maintain the watertightness of the submarine cable by coupling the tub and filling the inside with a waterproofing agent.

It should be understood, however, that the effects obtained by the present invention are not limited to the above-mentioned effects, and other effects not mentioned may be clearly understood by those skilled in the art to which the present invention belongs It will be possible.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate preferred embodiments of the invention and, together with the description, serve to further the understanding of the technical idea of the invention, It should not be construed as limited.
1 is a cross-sectional view of a submarine cable,
2 is a perspective view showing an end of a submarine cable,
FIG. 3 is a perspective view showing a state in which the armature is removed,
4 is a side view of a submarine cable connection connection method according to an embodiment of the present invention;
5 is a partial side sectional view of a submarine cable connection connecting method according to an embodiment of the present invention,
6 is a perspective view illustrating an armature clamp according to the first embodiment of the present invention,
7 is a cross-sectional view of an armature clamp according to the first embodiment of the present invention,
8 is a perspective view showing a state in which the armature clamp is mounted according to the first embodiment of the present invention,
FIG. 9 is a perspective view showing an arm clamp according to a second embodiment of the present invention, FIG.
FIG. 10 is a sectional view of a state in which the cover is engaged in a state in which the armature clamp is mounted according to the first or second embodiment of the present invention,
Fig. 11 is a sectional view of a portion to which an amor clamp is mounted and to which a cover is attached in Fig. 5,
FIG. 12 is a partial cross-sectional view of a state in which a plurality of cable lines are assembled after a cover is mounted by mounting an armature clamp according to an embodiment of the present invention. FIG.
FIG. 13 is a cross-sectional view illustrating a state in which a lead is exposed by removing a protective layer at an end portion of each of a pair of cable lines to be connected, according to an embodiment of the present invention;
FIG. 14 is a cross-sectional view of a state in which an insulating cylinder is inserted outside each of a pair of cable lines according to an embodiment of the present invention; FIG.
15 is a cross-sectional view illustrating a state in which a connection conductor is connected between a pair of cable lines opposed to each other according to an embodiment of the present invention;
16 is a cross-sectional view of a state in which an insulating tape, a semiconductive layer tape, and a self-adhesive tape are wound according to an embodiment of the present invention,
17 is a cross-sectional view illustrating a state in which an insulating cylinder is coupled and sealed with an insulating material filled therein according to an embodiment of the present invention,
FIG. 18 is a sectional view taken along the line AA of FIG. 17,
FIG. 19 is a side view of a state in which an insulating cylinder is coupled and sealed with an insulating material filled therein according to an embodiment of the present invention; FIG.
Fig. 20 shows a sectional view of Fig. 5. Fig.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features, and advantages of the present invention will become more readily apparent from the following description of preferred embodiments with reference to the accompanying drawings. However, the present invention is not limited to the embodiments described herein but may be embodied in other forms. Rather, the embodiments disclosed herein are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the invention to those skilled in the art.

In this specification, when an element is referred to as being on another element, it may be directly formed on another element, or a third element may be interposed therebetween. Also in the figures, the thickness of the components is exaggerated for an effective description of the technical content.

Embodiments described herein will be described with reference to cross-sectional views and / or plan views that are ideal illustrations of the present invention. In the drawings, the thicknesses of the films and regions are exaggerated for an effective description of the technical content. Thus, the shape of the illustrations may be modified by manufacturing techniques and / or tolerances. Accordingly, the embodiments of the present invention are not limited to the specific forms shown, but also include changes in the shapes that are produced according to the manufacturing process. For example, the area shown at right angles may be rounded or may have a shape with a certain curvature. Thus, the regions illustrated in the figures have attributes, and the shapes of the regions illustrated in the figures are intended to illustrate specific forms of regions of the elements and are not intended to limit the scope of the invention. Although the terms first, second, etc. have been used in various embodiments of the present disclosure to describe various components, these components should not be limited by these terms. These terms have only been used to distinguish one component from another. The embodiments described and exemplified herein also include their complementary embodiments.

The terminology used herein is for the purpose of illustrating embodiments and is not intended to be limiting of the present invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. The terms "comprises" and / or "comprising" used in the specification do not exclude the presence or addition of one or more other elements.

In describing the specific embodiments below, various specific details have been set forth in order to explain the invention in greater detail and to assist in understanding it. However, it will be appreciated by those skilled in the art that the present invention may be understood by those skilled in the art without departing from such specific details. In some instances, it should be noted that portions of the invention that are not commonly known in the description of the invention and are not significantly related to the invention do not describe confusing reasons to explain the present invention.

Hereinafter, a configuration and connection connection method of a submarine cable connection structure according to an embodiment of the present invention will be described. 4 is a side view of a submarine cable connection structure according to an embodiment of the present invention. 5 is a partial side sectional view of a submarine cable connection structure according to an embodiment of the present invention.

5 and 6 illustrate a connection portion of a submarine cable fastened by a submarine cable connection connection method according to an embodiment of the present invention. Such an access connection method generally cuts a submarine cable, exposes a plurality of cable lines 10 and a communication line in the submarine cable, arranges the submarine cables to be cut and opposed to each other by using an armored clamp 20 The mowers 3 are fixed and each of the opposing cable lines 10 is connected to each other and the insulation barrel 60 is fixed to insulate each of the connection portions to which the cable 10 is connected, ).

Hereinafter, a description will be given of a method of cutting a submarine cable and arranging the cable lines 10 of each submarine cable by exposing them, and then fixing the plurality of amoars 3 using the amore clamp 20 .

2, the submarine cable 100 may include a sheath 1, an armature 3, a cable 10, a communication line 2, and an insulating layer, a waterproof layer, and the like filling the cable 1 . The envelope (1) may be made of a polymer resin such as PVC. The insulating layer and the waterproof layer may be composed of a laminate.

Amore (3) can be made of steel having an intermediate carbon content ranging from less than 0.015% to a maximum of 2%, and consists of a plurality of steel wires having a circular or polygonal cross section. The reason for using such a steel wire is that it is generally inexpensive, is easy to obtain, and has good mechanical properties such as ductility. Other materials used in the amor (3) may be galvanized steel wire, such as galvanized steel wire, copper, brass or bronze. Since the galvanized steel wire is good for corrosion, it is preferably used when exposed to an environment free from the outer circumferential surface of the outer shell 1 or the waterproof layer. It is possible to separately provide a protective layer for sealing each of the chamfers 3.

And an insulating structure and a waterproof layer having an insulating layer and an insulating screen for the plurality of cable lines 10 and the communication line 2, respectively. A protective layer for sealing each of the cable lines 10 and the communication lines 2 may be separately provided.

3 is a perspective view showing a state in which a conventional arm was removed. As shown in Fig. 3, due to this structure of the submarine cable 100, it is possible to connect the straight line, the terminal, or the amorer 3 when the amorer 3 is peeled off and fixed. Hereinafter, the armature clamp 20 according to the first and second embodiments of the present invention for fixing the armature 3 will be described. A sealing member such as an O-ring made of a rubber material is inserted between the respective members so that a complete waterproof effect can be realized.

6 is a perspective view showing the armature clamp 20 according to the first embodiment of the present invention. Fig. 7 is a sectional view of the armature clamp 20 according to the first embodiment of the present invention. Fig. to be. 6 and 7, the armature clamp 20 according to the first embodiment of the present invention includes a cylindrical portion 21, an inverted conical portion 22, a cable hole 23, Lt; / RTI > And can be fixed and grounded by the fixing ring 30 after fastening. The material of the armature clamp 20 according to the present invention may be made of a polymer resin material such as stainless steel or PVC. In case of being used in the sea, stainless steel is preferably used to prevent corrosion by salting.

The cylindrical portion 21 is provided so that the terminal end of the inverted conical portion 22 extends naturally so that the terminal end of the removed armature 3 is easily fixed and the grounding is facilitated. And extend in the reverse cone portion 22 by the length of the cutter arm 3. It is possible to connect the grounding wire separately by connecting the fixing ring 30 to the end of the fixed armature 3, or to connect the grounding wire separately by winding the grounding wire.

The inverted conical portion 22 may be formed in an inverted conical shape so that when the amoφ 3 is shifted to the rear of the connection portion, a space is not generated between the curved portion of the armature 3 and the armature clamp 20, An inclined surface that smoothly curves from the hole 23 can be formed. The end of the inverted conical portion 22 can be configured to naturally connect with the cylindrical portion 21. [ The inverted conical portion 22 has an effect that the armature 3 is brought into close contact with the armature clamp 20 and curved along the outer surface of the inverted conical portion 22 when the armature 3 is replaced. Since the armature (3) and the armature clamp (20) are integrated, it is possible to provide a clamping force which is significantly higher than that of a conventional armature clamp.

Further, since the diameter of the inverted conical portion 22 is naturally increased in the cylindrical portion 21, the fixing ring 30 can be easily fastened.

The cable hole 23 and the jacket end 24 can be configured to easily bind the armature clamp 20 to the end of the submarine cable 100. [ The cable hole 23 is a hole provided in the axis of the inverted conical portion 22 and the cylindrical portion 21 in the longitudinal direction of the armature clamp 20. At this time, the cable hole 23 may be in close contact with the casing 1 or may be configured to be somewhat spacious. The connecting end side end of the cable hole 23 is configured to allow the cable 10, communication line 2 and armature 3 inside the submarine cable 100 to come out of the armature clamp 20.

The outer shell 24 may be formed as a protruding portion having a predetermined height so that only the outer shell 1 is not penetrated to the connection portion side of the inverted conical portion 22. This shell end 24 allows the user to easily fasten and fix the armature clamp 20 to the end of the submarine cable 100. It is possible to prevent the armor clamp 20 from moving in the longitudinal direction of the submarine cable 100 by the jacket end 24.

The fixing ring 30 is fixed to the portion of the cylindrical portion 21 in order to fix the end of the armature 3 and facilitate the grounding after the armature 3 is detached and closely attached to the armature clamp 20 And the like. At this time, the inner circumferential surface of the stationary ring 30 is configured to be fitted with the outer circumferential surface of the armature 3, and the armature 3 may be provided with a fixing groove for maintaining a constant gap and for improving the fixing force. And may be configured to be composed of two parts having a semicircular cross section and fixed by a fastening mechanism.

8 is a perspective view of a state in which the armature clamp 20 according to the first embodiment of the present invention is mounted. 8, the hammer clamp 20 according to the first embodiment of the present invention has an effect of tightly coming into close contact with the armature 3 at the connection portion of the submarine cable 100 to be integrated. By this effect, the armature (3) is securely fixed and the resistance due to the tensile force is strengthened. Since the armature clamp (20) and the armature (3) are integrated, the waterproof treatment becomes easy and the waterproof effect can be maximized.

With respect to the second embodiment, Fig. 9 is a perspective view showing the armature clamp 20 according to the second embodiment of the present invention. As shown in FIG. 9, the armature clamp 20 according to the second embodiment of the present invention may further include a coupling groove 25 as compared with the first embodiment.

The coupling groove 25 is configured to be shaped to be in conformity with the outer peripheral surface of the armature 3 and can be configured in the longitudinal direction of the armature clamp 20 in the inverted conical portion 22 and the cylindrical portion 21. The binding groove 25 has an effect of allowing theamorphor 3 to be fixed and held at a constant interval and has the effect of making the amoric clamp 20 and theamor 3 more tightly contacted, There is an effect that the armature 3 fastened to the armature clamp 20 is screwed or fixed precisely so that no space is generated even by a tensile force generated after the submarine cable 100 is connected. In addition, since the surface area of the amor (3) contacting with the outside is reduced, the waterproof effect can be maximized. When the user carries the amor (3) It has an effect of being simple and quick.

The armature clamp 20 according to the second embodiment of the present invention is designed such that the armature 3 is loosened while being closely attached to the coupling groove 25 and fixed integrally from the cylindrical portion 21 to the inverted conical portion 22 . In addition, since the surface area of the amor (3) contacting with the outside is reduced, the waterproof effect can be maximized. When the user carries the amor (3) It has an effect of being simple and quick.

The armature 3 is brought into close contact with the coupling groove 25 after the armature 3 is fastened to the end of the submarine cable 100 and the fixing ring 30 is inserted into the cylindrical portion (21) so as to be firmly fixed. If the ground wire is connected to one side of the stationary ring 30, the step of winding the wire can be omitted, and there is an effect that the grounding can be solved. The inner circumferential surface of the stationary ring 30 may be provided with a coupling groove so as to be in shape with the outer circumferential surface of the armature 3.

10 is a sectional view of the cover 40 in a state where the armor clamp 20 is mounted according to the first or second embodiment of the present invention. 11 is a cross-sectional view of a portion where the armor clamp 20 is mounted and the cover 40 is engaged in FIG.

10 and 11, the armor clamp 20 is fastened to the end of the submarine cable 100 and the armor 3 is tightly attached to the armor clamp 20, It is understood that the cover 40 is coupled to the outside so that the armature 3 is fixed to the cylindrical portion 21 and then the armature clamp 20 is provided inside.

The cover 40 is configured to be assembled by the fastening member 43, and a hardening agent filling hole 41 is provided on one side of the outer surface. Therefore, after the cover 40 is coupled, the hardening agent is filled through the hardening agent filling hole 41 to maintain the water tightness.

Then, after the amor (3) at both ends of the cut bottom cable (100) is fixed, the cable wires (10) projected to the end side are connected to each other. 12 is a partial cross-sectional view of a state in which a plurality of cable lines 10 are assembled after the cover 40 is mounted by mounting the armature clamp 20 according to an embodiment of the present invention.

First, the protective layer 11 at the end of the cable 10 is removed to expose the inner conductor 12. 13 is a cross-sectional view showing a state in which the protective layer 11 at the end of each of a pair of cable lines 10 to be connection-connected according to an embodiment of the present invention is removed to expose the conductive line 12 will be. The protective layer 11 may include an insulating layer on the outer surface of the conductive wire 12, a semiconductive layer on the outer surface of the insulating layer, and a lead layer on the outer surface of the semiconductive layer. All of the protective layer 11 is removed to expose the conductive line 12.

Before the end portions of the pair of opposed conductive wires 12 are connected and connected to each other, the insulating tube 60 is inserted into both sides. 14 is a cross-sectional view of an insulated tube 60 inserted into each of a pair of cable lines 10 according to an embodiment of the present invention.

Then, the ends of the pair of opposed conductors 12 are contacted and connected to each other. After the connection conductor 50 is positioned at the connection site and the sleeve is coupled, the wires 12 are connected to each other using a hydraulic press. FIG. 15 is a cross-sectional view illustrating a state in which a connection conductor 50 is connected between a pair of cable lines 10 opposed to each other according to an embodiment of the present invention.

Then, after each of the opposed leads 12 is electrically connected and connected to each other, a protective layer is formed on the outer surface of the connecting portion. More specifically, the insulating tape is wound around the outer surface of the connecting portion to generate the insulating layer 51. [ Then, a semi-conductor layer tape is again wound on the outer surface of the generated insulating layer 51 to produce a semiconductive layer 52 having a specific thickness. Then, a magnetic fusing tape is wound around the outer surface of the semiconductive layer 52 to form the protective layer 53. [ 16 is a cross-sectional view of a state in which an insulating tape, a semiconductive layer tape, and a self-adhesive tape are wound in accordance with an embodiment of the present invention.

After the protective layer is formed at the connection site, the pair of insulation tubes 60 inserted at both ends are coupled to each other to fix the connection site so as to be located inside. 17 is a cross-sectional view illustrating a state in which the insulating cylinder 60 is coupled and the insulating material 61 is filled in the sealed state according to an embodiment of the present invention. Fig. 18 is a cross-sectional view taken along the line A-A in Fig. 19 is a side view showing a state in which the insulating cylinder 60 is coupled and sealed and the insulating material 61 is filled therein according to an embodiment of the present invention.

17, 18, and 19, after the insulating cylinder 60 is coupled to each other to fix the connection portion therein, the sealing cap 62 is coupled to both ends of the insulating cylinder 60 , It is understood that the insulating material 61 is filled through the filling hole provided at one side of the outer surface of the insulating tube 60 and then the sealing plug 63 is inserted into the filling hole and sealed. 13 to 19 are performed on each of the cable lines 10 exposed in the submarine cable 100 and opposed to each other.

The insulation tube 60 according to an embodiment of the present invention can be detached and coupled to both sides of the insulation barrel 60. The insulation barrel 60 is inserted into both sides of the cable line 10 before connection and connection, A structure may be adopted in which the cable 10 is connected by the hinged insulation tube 60 and then connected to the connection portion of the cable 10 in an opening and closing manner have.

When the connecting and connecting operations to the plurality of cable lines 10 are completed, the coupling cylinder 70 is assembled between the covers 40 on both sides as shown in FIG. 4 and FIG. Fig. 20 shows a sectional view of Fig. 5. Fig.

4 and 5, the coupling cylinder 70 can be coupled and assembled with each other by a coupling cage fastening member 73, and the communication equipment 80 can be inserted into the coupling cylinder 70 before the coupling cylinder 70 is fastened. And the like. After the inner cable lines 10 are mounted in the coupling cylinder 70, the waterproof agent 71 is filled in the waterproof agent filling hole 72 to maintain watertightness.

It should be noted that the above-described apparatus and method are not limited to the configurations and methods of the embodiments described above, but the embodiments may be modified so that all or some of the embodiments are selectively combined .

1: envelope
2: Communication line
3: Amore
10: Cable line
11: Protective layer
12: Lead wire
20: Amore clamp
21:
22: inverted cone
23: Cable hole
24:
25: Fitting groove
30: Retaining ring
40: cover
41: filling hole
42: Curing agent
43: Cover fastening member
50: connection conductor
51: Insulation layer
52:
53: Protective layer
60: insulated trough
61: Insulation
62: sealing cap
63: Sealing plug
70:
71: Waterproofing agent
72: Waterproofing filling hole
73: Coupling cylinder fastening member
80: Communication equipment
100: Submarine cable

Claims (9)

A submarine cable connection method comprising:
Cutting the submarine cable;
A plurality of cable lines in the submarine cable are assembled, an armature clamp is fixed to the outer surface of the end portion, and the armature clamp is fixed to the outer surface of the armature clamp so as to be in close contact with the outer surface of the armature clamp. Stepping each of the mowers backward;
Attaching a cover to each of the end portions so as to be spaced apart from the armature clamp by a specific distance, and filling the inside of the cover with a hardening agent;
Removing a protective layer at an end of each of the plurality of cable lines to expose a portion of the wire;
Connecting each of a pair of conductors opposite to each other;
Coupling the insulating tube to the outside of the connecting portion of the lead and filling the insulating tube with the insulating material; And
And connecting a housing between the pair of covers, wiring the communication in the housing, and filling the hardening agent into the housing.
The method according to claim 1,
In the above step,
The above-
And a cable hole which is formed in an inverted cone shape and which has one end having a larger diameter of the circular cross section is coupled to the end of the outer surface of the submarine cable so as to face the connection part of the submarine cable, An inverted conical portion formed on one side of the one side so as to protrude in the direction of the connection portion so that the amor is tightly adhered; And a cylindrical portion which is formed in a cylindrical shape and is coaxial with the inverted conical portion on the other side where the diameter of the distal end of the inverted conical portion is smaller and the cable hole extends in the axial direction inside the inverted conical portion. Submarine cable connection connection method.
3. The method of claim 2,
Further comprising a coupling groove formed on an outer circumferential surface of the inverted conical portion so as to be fitted to an outer circumferential surface of the armature.
The method of claim 3,
And a cylindrical fixing ring configured to surround the cylindrical portion with the armature interposed therebetween is fastened to the cylindrical portion.
The method according to claim 1,
In connecting each of the pair of conductors,
Wherein the connecting conductor is positioned between the pair of conductors and the conductor is connected by a hydraulic press.
6. The method of claim 5,
Further comprising the step of forming a protective layer on the outer side of the connecting conductor.
The method according to claim 6,
The forming of the protective layer may include:
Winding an outer side of the connecting conductor with an insulating tape;
Winding a semi-conductor layer tape outward; And
And winding the self-adhesive tape outwardly.
The method according to claim 1,
Wherein the insulating cylinder comprises:
And the plurality of divided members are hinged to be openable and closable.
In the submarine cable connection structure,
A submarine cable connection structure characterized by being connected by a connection method according to any one of claims 1 to 8.

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