KR20210082692A - Marine cable combining device - Google Patents

Abstract

The present invention relates to a marine cable combining device which can automatically test, in a process of combining a power unit for supplying power to a marine cable, a filler for maintaining the original shape of a cable, and an optical unit including an optical fiber, whether the optical unit is stably inserted and seated in an optical unit accommodating part formed in the filler, and can minimize defects caused by disconnection of the optical unit.

Description

Submarine cable combination device {MARINE CABLE COMBINING DEVICE}

The present invention relates to a submarine cable union device. More specifically, the present invention is stably inserted into the optical unit accommodating part formed in the interposition in the process of associating the optical unit including the power unit for power supply of the submarine cable, the interposition for maintaining the original shape of the cable, and the optical fiber, and is seated It relates to a subsea cable union device capable of minimizing defects caused by disconnection of an optical unit by automatically inspecting whether there is a problem.

In general, a submarine cable is provided with a conductor and an insulating layer, and a plurality of power cable-type power units for transmitting power are arranged approximately symmetrically inside the submarine cable, and a protective layer is provided along the periphery. can be configured in this way.

However, in the above configuration, although a plurality of the power units are provided, it may be difficult to secure the roundness of the submarine cable, especially when winding on a turntable for laying on the seabed, when installing the submarine cable, or in a rough submarine environment When affected by waves, etc., external pressure or external force may act to cause damage to the power unit provided inside the submarine cable. Therefore, it maintains the roundness of the submarine cable and requires an interposition to protect the internal power unit when the submarine cable is installed or when an external force such as external pressure is applied.

In addition, in recent years, the need for an optical communication system based on an optical cable having an optical fiber having a higher bandwidth than the existing copper communication line is further increasing. Accordingly, even in the case of a power cable for power transmission, power and information are transmitted at the same time through a complex cable type in which an optical unit including an optical fiber is combined.

Subsea cables with optical units have great advantages in transmission characteristics such as low loss characteristics and high bandwidth compared to conventional copper lines, but are a transmission medium with lower mechanical reliability due to weak mechanical strength compared to copper lines. . In fact, failures (breaking, bending, etc.) may occur due to various internal/external causes in combination with the mechanical fragility of optical fibers.

Therefore, when the subsea cable is provided with an optical unit, in order to accommodate and protect the optical unit, an entrance must be forcibly opened to the interposition to form an accessible optical unit accommodating part, and to accommodate the optical unit in the optical unit accommodating part to accommodate the optical unit It adopts a structure to prevent damage to

The process of inserting the optical unit into the optical unit accommodating part is performed in the process of associating the power unit and the intervening unit through the combiner.

In this light unit insertion process, the light unit is inserted at the same time as opening the entrance of the optical unit accommodating part of the intervening, the entrance of the optical unit accommodating part is closed by itself, and a method of combining the power unit and the interposition is used.

In this way, the optical unit accommodated in the optical unit accommodating part is protected from being pressed by the power unit or the like even when the submarine cable is combined or bent, so that disconnection can be prevented.

However, if the optical unit is correctly inserted and seated in the optical unit accommodating part in the combined process of the submarine cable and the submarine cable is completed in a state that is not accommodated, the optical unit is pressed between the power unit or the intervening cable during transportation, installation, or use of the submarine cable. Bending causes problems such as disconnection.

The submarine cable is a cable that is installed on the seabed using a ship, and if disconnection of the optical unit is found after installation, the installed cable must be removed and a new cable must be reinstalled, so there is a problem in that the cost is greatly increased.

Therefore, it is necessary to continuously monitor whether the optical unit is correctly inserted and seated in the optical unit receiving part during the submarine cable union process. Conventionally, a method of inspecting this with the naked eye of the operator has been used, but the union operation is stopped in the absence of the operator It is difficult to guarantee a perfect inspection by visual inspection.

The present invention automatically determines whether the optical unit is stably inserted and seated in the optical unit accommodating part formed in the interposition in the process of associating the optical unit including the power unit for power supply of the submarine cable, the interposition for maintaining the original shape of the cable, and the optical fiber It is a task to solve the problem to provide a submarine cable union device that can minimize defects caused by disconnection of optical units by inspection.

In order to solve the above problems, the present invention provides a plurality of power units having an insulating layer insulating a conductor and a conductor, at least one optical unit having an optical fiber and a tube in which the optical fiber is accommodated, and an optical unit accommodating part in the center direction of the cable A subsea cable association device for associating a plurality of interpositions provided therein, comprising: a base plate through which the power unit, the interposition and the optical unit are supplied; a plurality of opening blades fixed to the base plate and opening the entrance of the intervening light unit accommodating part wide open; a first roller installed on the open blade and pushing the light unit into the open inlet of the intervening light unit accommodating part; a second roller provided opposite the open blade and the first roller with the interposition interposed therebetween to support an outer circumferential surface of the interposition; a light unit detection sensor provided on the first roller and configured to detect a light unit not accommodated in the intervening light unit accommodating part by the first roller; It is possible to provide a submarine cable union device comprising a; a control unit for controlling the submarine cable union device according to the detection information of the optical unit detection sensor.

In addition, the entrance of the light unit accommodating portion of the interposition may be provided at the inner end of the interposition, and the light unit detection sensor may be disposed in front of the inner end of the interposition.

In this case, the light unit detection sensor is disposed in front of the inlet of the interposition in which the entrance is opened by the opening blade and the insertion process is completed into the light unit accommodating part through the inlet by the first roller, the light unit of the interposition It may be a diffuse reflection type photosensor for detecting a light unit not inserted into the receiving part.

In addition, the light unit detection sensor may be installed on a support frame installed on the base plate in order to install the first roller on the base plate.

Here, the light unit detection sensor may be mounted on a sensor bracket hinged to the support frame to adjust the distance between the light unit detection sensor and the inlet of the interposition.

In addition, a guide portion for restoring the interposition to its original shape may be provided on the optical unit detection sensor by closing the entrance of the interposition.

In this case, a guide roller may be further provided in the direction of the entrance of the interposition above the guide part in order to strengthen the closed state of the entrance of the optical unit receiving part of the interposition that has passed through the guide part.

In addition, the guide unit may be provided with a restoration slot corresponding to the cross-sectional shape of the interposition so that the interposition in which the light unit is accommodated passes and the entrance of the light unit receiving unit is closed.

Here, when the light unit detection sensor detects a light unit not accommodated in the intervening light unit accommodating part, the control unit stops the operation of the association device or generates a notification signal through the notification device provided in the association device can be controlled as much as possible.

According to the subsea cable association apparatus according to the present invention, in the process of associating the optical unit including the power unit for power supply, the interposition for maintaining the original shape of the cable, and the optical fiber, the optical unit is stably inserted into the optical unit receiving part formed in the interposition, It is possible to prevent the failure of the submarine cable in advance by automatically checking whether it is seated and automatically detecting whether the optical unit is detached.

In addition, according to the submarine cable union apparatus according to the present invention, it is possible to prevent the failure of the submarine cable and to prevent the waste of enormous costs that may be caused by the discovery of a defect in the product after the installation of the submarine cable.

1 is a cross-sectional view showing the configuration of a submarine cable having an optical unit.
Figure 2 shows a perspective view of a submarine cable association device for associating the interposition in which the power unit and the optical unit of the submarine cable are accommodated.
Figure 3 shows an enlarged perspective view of the vicinity of the light unit detection sensor constituting the submarine cable union device.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to the embodiments described herein and may be embodied in other forms. Rather, the embodiments introduced herein are provided so that the disclosed subject matter may be thorough and complete, and the spirit of the invention may be sufficiently conveyed to those skilled in the art. Like reference numbers refer to like elements throughout.

First, look at the structure of a submarine cable having an optical unit, and then look at the submarine cable union device according to the present invention.

1 is a cross-sectional view showing the configuration of a submarine cable 10 having an optical unit (100).

Referring to FIG. 1 , the submarine cable 10 is illustrated as an example of a three-phase cable having three power units 300 , but is not limited thereto and may be applied to all submarine cables having a plurality of power units. can

The power unit 300 includes a conductor 310 , an inner semiconducting layer 330 , an insulating layer 320 , an outer semiconducting layer 340 , a metal shielding layer 350 , and a polymer sheath 360 .

The conductor 310 serves as a path through which current flows in order to transmit power, and has excellent conductivity to minimize power loss, and a material having strength and flexibility suitable for cable manufacturing and use, for example, copper or aluminum, etc. can be accomplished with

The conductor 310 may be a circular compressed conductor obtained by compressing a plurality of circular elements by twisting them into a circular shape, and includes a circular central element and a flat element wire layer formed of a flat element strand stranded to surround the circular central element, and has a circular shape as a whole. It may be a flat-angled conductor having a cross-section of , and the flat-angled conductor has a relatively high space factor compared to a circular compressed conductor, so that the outer diameter of the cable can be reduced.

However, since the surface of the conductor 310 is not smooth, the electric field may be non-uniform, and partial corona discharge is likely to occur. In addition, when a void is formed between the surface of the conductor 310 and the insulating layer 320 to be described later, insulating performance may be deteriorated.

In order to solve the above problems, an inner semiconducting layer 330 may be formed outside the conductor 310 . The inner semiconducting layer 330 may have semiconductivity by adding conductive particles such as carbon black, carbon nanotubes, carbon nanoplates, and graphite to an insulating material.

The inner semiconducting layer 330 prevents an abrupt electric field change from occurring between the conductor 310 and an insulating layer 320 to be described later, thereby stabilizing insulation performance. In addition, by suppressing the non-uniform charge distribution on the conductor surface, the electric field is made uniform, and the formation of voids between the conductor 310 and the insulating layer 320 can be prevented, thereby suppressing corona discharge, insulation breakdown, and the like.

The insulating layer 320 is provided on the outside of the inner semiconducting layer 330 to electrically insulate it from the outside so that current does not leak to the outside along the conductor 310 . In general, the insulating layer 320 has a high breakdown voltage, and insulating performance must be stably maintained for a long period of time. Furthermore, it should have low dielectric loss and resistance to heat such as heat resistance. Accordingly, the insulating layer 320 may be formed of a polyolefin resin such as polyethylene or polypropylene, and further preferably a polyethylene resin. Here, the polyethylene resin may be made of a crosslinking resin.

An external semiconducting layer 340 may be provided outside the insulating layer 320 . The outer semiconducting layer 340 is formed of a material having semiconductivity by adding conductive particles, for example, carbon black, carbon nanotubes, carbon nanoplates, graphite, etc., to an insulating material like the inner semiconducting layer 330, The insulating performance is stabilized by suppressing non-uniform charge distribution between the insulating layer 320 and the metal sheath 350 to be described later. In addition, the outer semiconducting layer 340 smoothes the surface of the insulating layer 320 in the cable to relieve electric field concentration to prevent corona discharge, and to physically protect the insulating layer 320. can

The power unit 300 may additionally include a moisture absorption part (not shown) for preventing moisture from penetrating into the cable. The moisture absorbing part may be formed between the wires constituting the conductor 310 and/or outside the conductor 310 . The moisture absorbing part is composed of powder, tape, coating layer, or film containing super absorbent polymer (SAP), which has a high rate of absorbing moisture penetrating into the cable and has excellent ability to maintain an absorption state. It prevents moisture from penetrating along the length of the cable. The moisture absorbing part may also have semi-conductivity in order to prevent an abrupt electric field change.

A metal shielding layer 350 and a polymer sheath 360 may be additionally provided outside the outer semiconducting layer 340 . The metal shielding layer 350 and the polymer sheath 360 may protect the cable power unit from various environmental factors and fault currents such as moisture penetration, mechanical trauma, corrosion, etc. that may affect the power transmission performance of the cable. .

The metal shielding layer 350 is grounded at the end of the cable to serve as a path through which an accident current flows when an accident such as a ground fault or short circuit occurs, protects the cable from external impact, and shields the electric field from being discharged to the outside of the cable. .

In addition, in the case of a submarine cable to be laid in an environment such as the seabed, the metal shielding layer 350 is formed to seal the power unit, so that it is possible to prevent the intrusion of foreign substances such as moisture and deterioration of insulation performance. For example, by extruding molten metal to the outside of the power unit to have a seamless and continuous outer surface, the waterproofing performance can be improved. Lead or aluminum is used as the metal. In particular, in the case of a submarine cable, it is preferable to use lead with excellent corrosion resistance to seawater, and lead alloy with metal elements added to complement mechanical properties. ) is more preferably used.

A polymer sheath 360 made of a resin such as polyvinyl chloride (PVC), polyethylene, etc. is formed on the outside of the metal shielding layer 350 to improve corrosion resistance, water resistance, etc. of the submarine cable, mechanical trauma and heat , can perform the function of protecting the cable from other external environmental factors such as UV rays. In particular, in the case of a submarine cable, it is preferable to use a polyethylene resin having excellent water resistance, and it is preferable to use a polyvinyl chloride resin in an environment requiring flame retardancy.

In addition, the power unit 300 may be additionally provided with a copper wire straight-through tape (not shown) or a moisture absorption layer (not shown) inside or outside the outer semiconducting layer 340 . The copper wire straight tape is composed of a copper wire and a non-woven tape, etc., and may function to facilitate electrical contact between the outer semiconducting layer and the metal sheath. The moisture-absorbing layer (not shown) is a powder, tape, coating layer, or film containing a super absorbent polymer (SAP) that has a high rate of absorbing moisture penetrating into the cable and has excellent ability to maintain an absorption state. can be made in the form Accordingly, the moisture-absorbing layer can prevent moisture from penetrating in the longitudinal direction of the cable. In addition, in order to prevent an abrupt electric field change in the moisture absorbing layer, a copper wire may be included in the moisture absorbing layer.

Meanwhile, the submarine cable 10 may further include an optical unit 100 .

Here, the optical unit 100 may include at least one optical fiber 111 and a tube 112 accommodating the optical fiber 111 .

Each of the optical units 100 includes a predetermined number of optical fibers 111 mounted together with the filler 113 in the tube 112, and the tube may be made of a rigid material such as stainless steel. The optical unit 100 may further include a sheath 130 surrounding the tube 112 .

On the other hand, FIG. 1 shows an example in which a single protective tube is provided inside a single sheath, but this is only an example. For example, a plurality of protective tubes are provided inside one sheath, and at least one protective tube is provided inside each protective tube. Of course, a configuration including an optical fiber is also possible. In this case, after connecting both the optical fiber and the protective tube, a step of restoring the external sheath may be performed.

In addition, the optical unit 100 may be configured with only a tube without having the outermost sheath 130 .

On the other hand, since the submarine cable 10 is installed across the seabed, such as the sea, it may be provided with various protective layers for protecting internal components even in harsh environments such as seawater and salt in the sea. For example, as shown in FIG. 1 , a bedding layer 700 composed of polypropylene (PP: Polypropylene) yarns surrounding the power unit 300 and the optical unit 100, and the bedding layer 700 . It is provided outside of the iron wire sheath 710 to improve the mechanical strength of the submarine cable 10, and may be provided with a jacket 720 provided on the outside of the iron wire sheath 710.

Meanwhile, in the conventional submarine cable, a filler may be provided between the power unit 300 and the light unit 100 and the bedding layer 700 to protect the power unit 300 and the light unit 100 described above. .

As the above-mentioned filler, a yarn (Yarn) made of a polypropylene material is mainly used. However, when a plurality of these yarns are arranged inside the submarine cable, when the power unit, the optical unit, and the yarns are combined to form the submarine cable, the yarns are caught in the equipment for combining them at a predetermined pitch. There is a problem being

In order to solve this problem, the number of yarns inserted into the submarine cable is reduced and the union is performed, but the overall cross-section of the submarine cable does not become a circular cross-section due to the pressure applied during the protective layer formation process and is distorted in some areas. There is a problem with losing.

As described above, when the cross section of the submarine cable is not circular, the load of the submarine cable wound on the turntable after production is not uniformly distributed, so there is a problem that the submarine cable is destroyed in the process of storage or transport, and the submarine cable The tensile force applied by the bending of the submarine cable during the installation process is not evenly applied to the entire cross section of the submarine cable, and this phenomenon eventually causes damage to the submarine cable in the part where the greater tensile force is applied when the cable is used for a long time. In addition, in the case of a submarine cable having the optical unit 100 , damage to the optical unit 100 may be feared when an external force acts on the cable.

Therefore, it maintains the roundness of the submarine cable 10 and uniformly distributes bending stress, installation tension, or tensile force acting on the submarine cable 10 when the submarine cable 10 is installed or the power unit of the cable. In order to prevent damage or breakage of the 300 and the optical unit 100, a shaped filler 400 may be provided, and the optical unit 100 may have a structure accommodated in the interposition.

Specifically, the interposition 400 has an optical unit accommodating part 410 therein, and accommodates the optical unit 100 therein, so that an external force acts in the case of installation on the submarine cable 10 , etc. In this case, it is possible to prevent damage such as disconnection or bending of the optical unit 100 .

As shown in Figure 1, the cross section of the intervening can be configured to fill the three empty spaces so that the overall shape of the submarine cable becomes a circle in a state in which the three circular power units are arranged to be circumscribed to each other so as to have a triangular shape. , the shape may be approximately a sector shape.

Specifically, it can be seen that the outer surface of each interposition 400 is configured in the shape of one arc, and the inner surface of the interposition is configured in the shape of two arcs. The reason why the inner surface of the interposition 400 is configured in the form of two arcs is so that the interposition is seated in the space between the power units 300 as shown in FIG. 1 , and the arc of the inner surface of the interposition 400 is the power unit It is configured to have a curvature corresponding to the circumferential surface of 300, and the arc of the outer surface of the interposition 400 may be configured to have a curvature such that the entire cross-section of the cable maintains a round shape when a plurality of power units are stranded. have.

The optical unit accommodating part 410 of the interposition is provided with its inlet 430 at the intersection of the two inner surfaces, and the inlet 430 is in a cut state, and spreads it using a blade or the like to be described later. It is possible to protect the light unit by inserting the light unit through it.

A detailed description of the association device for inserting the light unit into the intervening 400 is postponed.

As shown in FIG. 1 , a bedding layer 700 made of polypropylene (PP) yarn of the submarine cable, etc., is provided on the outside of the bedding layer 700 and the mechanical strength of the submarine cable 10 Before configuring the outer layer consisting of the jacket 720 provided on the outside of the iron wire sheath 710 and the iron wire sheath 710 to improve have.

Hereinafter, the submarine cable union apparatus according to the present invention will be described in detail with reference to FIG. 2 .

2 is a perspective view showing a submarine cable union device 2000 for uniting the power unit 300, the interposition 400 and the optical unit 100 of the submarine cable 10, and FIG. 3 is the submarine cable union An enlarged perspective view of the vicinity of the light unit detection sensor constituting the device 2000 is shown.

The present invention provides a plurality of power units 300 having an insulating layer insulating conductors from conductors, at least one optical unit 100 having an optical fiber and a tube in which optical fibers are accommodated, and a cable center to accommodate the optical unit. In the submarine cable union apparatus 2000 for combining a plurality of interpositions provided with an optical unit receiving part 410 in the direction, the power unit 300, the interposition 400 and the optical unit 100 penetrate The supplied base plate 2100; a plurality of open blades 2150 fixed to the base plate 2100 and widening the entrance of the intervening light unit accommodating part; a first roller 2200 installed on the open blade 2150 and pushing the light unit into the open inlet of the light unit accommodating part of the interposition 400; a second roller 2300 provided opposite to the open blade 2150 and the first roller 2200 with the interposition 400 interposed therebetween to support an outer circumferential surface of the interposition; A light unit detection sensor 2410 provided on the first roller 2200 to detect the light unit 100 that is not accommodated in the light unit accommodating part of the interposition 400 by the first roller 2200 . ); A control unit (not shown) for controlling the submarine cable association device according to the detection information of the light unit detection sensor 2410; may be configured to include.

Referring to FIG. 2 , the power unit 300 , the interposition 400 , and the light unit 100 are separated from the lower portion of the association device 2000 , and pass through the association device 2000 . As they move upward, they are associated with each other at a predetermined pitch.

Specifically, the association device 2000 includes a base plate 2100 having a plurality of through holes 2130 or through grooves 2110 formed thereon, and various components to be described later are mounted on the base plate 2100 .

The base plate 2100 may include an open blade 2210 for opening one side of the interposition 400 so that the light unit 100 can be inserted into the interposition 400 . The opening blade 2210 has a thin and sharp end and is configured to open one side of the interposition 400 .

Then, a first roller 2200 for pressing the light unit 100 so that the light unit 100 is inserted into the interposition 400 is provided. The light unit 100 is inserted into the open interposition 400 by the first roller 2200 .

In this case, a second roller 2300 provided opposite the open blade and the first roller with the interposition therebetween to firmly support the outer circumferential surface of the interposition may be provided in the opposite direction of the first roller 2200. . When pressure is applied to the interposition 400 by the first roller 2200 , the second roller 2300 supports the interposition 400 not to be pushed outward. The second roller 2300 may be mounted on the base plate 2100 by a mount 2310 .

In the light unit detection sensor 2410, the entrance of the interposition 400 is opened by the opening blade 2210, and the light unit is inserted into the light unit receiving part through the entrance of the interposition 400 by the first roller. It may be disposed in front of the entrance of the interposition 400 on which the process is completed, and may be provided to detect a light unit that is not inserted into the light unit accommodating part of the interposition 400 .

The light unit detection sensor 2410 is installed on the support frame 2150 installed on the base plate to install the first roller on the base plate, and specifically, the light unit detection sensor 2410 is the light unit It may be mounted on the support frame 2150 via a sensor bracket 2430 configured to adjust the distance between the detection sensor 2410 and the inlet of the interposition 400 .

The light unit detection sensor 2410 and the sensor bracket 2430 constitute the light unit detection unit 2400, and the control function of the light unit detection unit 2400 and the control unit is added to the conventional submarine cable association device. Thus, it is possible to provide an automatic detection function of whether the optical unit has departed.

In order to configure the light unit detection sensor 2410 to adjust the distance between the light unit detection sensor 2410 and the inlet of the interposition 400 , the sensor bracket 2430 is attached to the support frame 2150 . It is hinged, so that the distance between the light unit detection sensor 2410 and the inlet of the interposition 400 can be adjusted by adjusting the coupling angle between the sensor bracket 2430 and the support frame 2150 .

Here, in the method in which the sensor bracket 2430 is hinged to the support frame 2150, the sensor bracket 2430 may be directly hinged to the support frame 2150, but as shown in FIG. 3, The sensor bracket 2430 coupled to the support frame 2150 itself is separately hinged and may be configured in such a way that a rotating member on which the light unit detection sensor 2410 is mounted is provided. The light unit detection sensor 2410 may be a diffuse reflection type photosensor that does not require a separate light receiver or a reflective mirror, and can detect by diffusely reflecting the irradiated light.

In general, a photosensor refers to an element that detects light itself or information contained in light by converting it into an electrical signal, and is divided into transmission type, mirror reflection type and diffuse reflection type, etc., but provided in the submarine cable association device according to the present invention Since the light unit detection sensor cannot install a light receiving sensor or mirror on the opposite side (position of the light unit receiving unit entrance, etc. of the intervening intervening towed upward), it is possible to detect the diffusely reflected light that collided with the light unit receiving unit entrance. It is preferable to apply a diffuse reflection type photosensor that detects an object by sensing.

The diffuse reflection type photosensor has a shorter sensing distance than the transmissive type or mirror reflection type, but as shown in FIGS. 2 and 3, the distance between the light unit detection sensor and the light unit accommodating part entrance is short, so only the diffuse reflection type photosensor can accurately separate the light unit can detect whether

In addition, by adjusting the distance between the light unit detection sensor 2410 and the entrance of the light unit accommodating unit, only the detached light unit can be detected or the system can be configured so that the detached light unit is clearly identified.

And, as shown in Figs. 2 and 3, the light unit detection sensor 2410 is horizontally arranged in the form of a bar so that it can be configured to detect even when the detached light unit is arranged in the left and right directions.

The diffuse reflection type photosensor itself has a light emitting unit and a light receiving unit, and in this case, it is preferable to apply a sensor in which the light receiving unit is widely arranged in the horizontal direction or a plurality of the light receiving units are horizontally spaced apart from each other.

That is, the light unit detection sensor 2410 is disposed to face the entrance of the light unit accommodating part of the interposition 400, and if there is no foreign matter between the light unit accommodating part and the light unit detection sensor 2410, the light unit It is determined that this is not separated, and if there is a light unit that is not inserted into the light unit receiving unit between the entrance of the light unit receiving unit and the light unit detecting sensor 2410, the light unit detecting sensor 2410 detects this and the light unit After detecting the departure of, the control unit (not shown) of the submarine cable association device stops the association process of the power unit 300 and the intervening 400 and inserts the detached optical unit into the optical unit insertion part to remove the defective elements. The federation process can be resumed.

In addition, the control unit does not stop the operation of the association device when a detached light unit is detected, but may control the operation of a warning sound generating device or a warning light recognizable by an operator.

A guide part 2500 for closing the entrance of the interposition 400 to restore the interposition to its original shape may be provided on the light unit detection sensor 2410 .

Specifically, the guide unit 2500 may be provided with a restoration slot (not shown) in the form of an opening corresponding to the cross-sectional shape of the interposition so that the interposition in which the light unit is accommodated passes and the entrance of the light unit accommodating unit is closed.

A guide roller 2600 may be provided on the guide part 2500 . At this time, the guide roller 2600 may reinforce the closed state of the optical unit receiving part of the interposition once again, and guide the interposition 400 that is pulled upward.

At the upper portion of the guide roller 2600 , the interposition 400 and the power unit 300 are combined with each other at a predetermined pitch.

After the light unit 100 is inserted into the interposition 400 , a guide part 2500 , which guides the interposition 400 to close it back to its original state, is provided on the first roller 2200 .

At this time, by driving the guide roller 2600, the interposition 400 may be more smoothly pulled upwardly. At the upper portion of the guide roller 2600 , the interposition 400 and the power unit 300 are combined with each other at a predetermined pitch.

Although the present specification has been described with reference to preferred embodiments of the present invention, those skilled in the art can variously modify and change the present invention without departing from the spirit and scope of the present invention as set forth in the claims described below. will be able to carry out Therefore, if the modified implementation basically includes the elements of the claims of the present invention, all of them should be considered to be included in the technical scope of the present invention.

100: light unit
300: power unit
400: intervening
2000: Submarine cable union device

Claims (9)

A seabed for associating a plurality of power units having a conductor and an insulating layer insulating the conductor, at least one optical unit having an optical fiber and a tube in which the optical fiber is accommodated, and a plurality of interpositions having an optical unit accommodating part in the direction of the center of the cable In the cable union device,
a base plate through which the power unit, the interposition, and the light unit are supplied;
a plurality of open blades fixed to the base plate and opening the entrance of the intervening light unit accommodating part wide open;
a first roller installed on the open blade and pushing the light unit into the open inlet of the intervening light unit accommodating part;
a second roller provided opposite the open blade and the first roller with the interposition interposed therebetween to support an outer circumferential surface of the interposition;
a light unit detection sensor provided on the first roller and configured to detect a light unit not accommodated in the intervening light unit accommodating part by the first roller;
A submarine cable union device comprising a; a control unit for controlling the submarine cable union device according to the detection information of the optical unit detection sensor. According to claim 1,
The inlet of the light unit accommodating part of the interposition is provided at the inner end of the interposition, and the light unit detection sensor is disposed in front of the inner end of the interposition. 3. The method of claim 2,
The light unit detection sensor is disposed in front of the entrance of the interposition, the entrance is opened by the opening blade and the insertion process is completed into the light unit receiving unit through the inlet by the first roller, and inserted into the light unit receiving unit of the interposition Submarine cable union device, characterized in that it is a diffuse reflection type photosensor for detecting a light unit that is not. 4. The method of claim 3,
The light unit detection sensor is installed on a support frame installed on the base plate in order to install the first roller on the base plate. 5. The method of claim 4,
The light unit detection sensor is a submarine cable association device, characterized in that it is mounted on the sensor bracket hinged to the support frame so as to adjust the distance between the light unit detection sensor and the inlet of the intervening. According to claim 1,
Subsea cable union device, characterized in that a guide portion is provided on the upper portion of the optical unit detection sensor to close the inlet of the interposition to restore the interposition to its original shape. 7. The method of claim 6,
Subsea cable union device, characterized in that the guide unit is provided with a restoration slot corresponding to the cross-sectional shape of the interposition so that the interposition in which the optical unit is accommodated passes and the entrance of the optical unit accommodating part is closed. 7. The method of claim 6,
Subsea cable union device, characterized in that the guide roller is further provided in the direction of the entrance of the interposition above the guide part in order to strengthen the closed state of the entrance of the optical unit receiving part of the interposition that has passed through the guide part. According to claim 1,
When the light unit detection sensor detects a light unit not accommodated in the intervening light unit accommodating part, the control unit stops the operation of the association device or controls to generate a notification signal through a notification device provided in the association device Submarine cable union device, characterized in that.

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