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WO2023146024A1 - Duct capable of shielding electromagnetic wave for submarine power cable - Google Patents

Duct capable of shielding electromagnetic wave for submarine power cable Download PDF

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Publication number
WO2023146024A1
WO2023146024A1 PCT/KR2022/006320 KR2022006320W WO2023146024A1 WO 2023146024 A1 WO2023146024 A1 WO 2023146024A1 KR 2022006320 W KR2022006320 W KR 2022006320W WO 2023146024 A1 WO2023146024 A1 WO 2023146024A1
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WO
WIPO (PCT)
Prior art keywords
power cable
duct
cable
electromagnetic waves
duct body
Prior art date
Application number
PCT/KR2022/006320
Other languages
French (fr)
Korean (ko)
Inventor
정찬섭
Original Assignee
에스에스이 주식회사
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Application filed by 에스에스이 주식회사 filed Critical 에스에스이 주식회사
Publication of WO2023146024A1 publication Critical patent/WO2023146024A1/en

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G9/00—Installations of electric cables or lines in or on the ground or water
    • H02G9/02—Installations of electric cables or lines in or on the ground or water laid directly in or on the ground, river-bed or sea-bottom; Coverings therefor, e.g. tile
    • H02G9/025—Coverings therefor, e.g. tile
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
    • H02G1/06—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle
    • H02G1/10—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle in or under water
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G9/00—Installations of electric cables or lines in or on the ground or water
    • H02G9/02—Installations of electric cables or lines in or on the ground or water laid directly in or on the ground, river-bed or sea-bottom; Coverings therefor, e.g. tile
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K9/00—Screening of apparatus or components against electric or magnetic fields
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K9/00—Screening of apparatus or components against electric or magnetic fields
    • H05K9/0073—Shielding materials
    • H05K9/0081—Electromagnetic shielding materials, e.g. EMI, RFI shielding

Definitions

  • the present invention relates to a duct for a submarine power cable capable of shielding electromagnetic waves, and more particularly, to protect a power cable from external impact, and to shield electromagnetic waves generated by a power cable, thereby preventing marine life and damage caused by electromagnetic waves. It relates to a duct for a submarine power cable capable of shielding electromagnetic waves capable of minimizing the impact on the environment.
  • the submarine power cable refers to a cable laid on the seabed to transmit power and communication between two isolated points across the sea, such as continents and continents or land and islands. Since these power cables are laid on the seabed, they can be damaged by ocean currents, currents, waves, and friction with the seabed. In particular, in areas where fishing activities are active, they can also be damaged by anchors or fishing gear. Therefore, in order to prevent this, a protective duct is installed in the submarine power cable to protect the power cables.
  • the prior art related to the protective duct for protecting the power cable includes a cover part formed in an arch shape, such as 'Registered Patent No. 10-0773953 duct for submarine cable protection by the Korean Intellectual Property Office', including a plurality of power cables inside the arcuate cover part.
  • This once-protected technique is known.
  • each power cable cannot be stably supported, a problem of damage to the power cables due to friction between the power cables may occur.
  • the submarine power cable exhibits a magnetic field change within several meters, but does not affect the surrounding marine life or environment because the magnetic field does not change at a distance of 20 m or more.
  • magnetic sensitivity is related to the localization and orientation of marine organisms
  • artificially generated electromagnetic fields have the potential to affect prey detection, predation, orientation, and reproduction of marine organisms. Accordingly, the electromagnetic wave problem of submarine power cables is becoming a social issue through fishing villages, and since it is emerging as the biggest problem in the offshore wind farm development project, a power cable duct capable of blocking electromagnetic waves of power cables is required.
  • the present invention has been made to solve the above problems, and it is possible to protect the power cable from external impact, and to shield electromagnetic waves generated by the power cable, thereby reducing the effect of electromagnetic waves on marine life and the environment.
  • An object of the present invention is to provide a duct for a submarine power cable capable of minimizing electromagnetic wave shielding.
  • the above object is to provide a duct for a submarine power cable capable of shielding electromagnetic waves generated from a submarine power cable laid on the seabed, comprising: a duct main body provided with the power cable inside to protect the power cable; a plurality of cable holders spaced apart from each other along the longitudinal direction of the duct body inside the duct body and fixing the power cable to prevent the power cable from flowing; A shielding layer laminated on the inside of the duct body and on the surface of the cable holder to shield electromagnetic waves generated from the power cable; is achieved by a duct for a submarine power cable capable of shielding electromagnetic waves.
  • a plurality of holder supports protruding from the duct body towards the cable holders to support a plurality of the cable holders; preferably, the cable holders are detachable from the holder supports.
  • the shielding layer is preferably formed by mixing carbon black and synthetic resin.
  • the power cables when using a duct for power cables, the power cables can be protected from external shocks, and electromagnetic waves generated by the power cables can be shielded, so that electromagnetic waves affect marine life and the environment. has the effect of minimizing
  • FIG. 1 is a perspective view of a duct for a power cable according to an embodiment of the present invention
  • FIG. 2 is a side view of a duct for power cables
  • FIG. 3 is a front view of a duct for power cables.
  • FIG. 1 is a perspective view of a duct for power cables according to an embodiment of the present invention
  • FIG. 2 is a side view of the duct for power cables
  • FIG. 3 is a front view of the duct for power cables.
  • the duct 10 for a submarine power cable capable of shielding electromagnetic waves is for protecting a plurality of submarine power cables installed on the seabed, and as shown in FIGS. 1 and 2, the duct body 100, It includes a protruding coupling part 200, a recessed coupling part 300, a cable holder 400, a holder support part 500 and a shielding layer 600.
  • the duct body 100 has a power cable inside to protect the power cable, and the duct body 100 is formed long along the length direction of the power cable 1 to provide a plurality of power cables to the duct body 100. ) are placed parallel to the longitudinal direction of At this time, the cross section in the width direction of the duct body 100 is made of a 'U' shape, and a pair of 'U' shaped duct bodies 100 are provided so that one duct body 100 is disposed on the lower side, Another duct body 100 is disposed on the upper side to cover the upper duct body 100 to the lower duct body 100 in the form of a cover to protect the power cable inside from external impact.
  • the ducts 10 for power cables according to the present invention are provided as a pair with the same configuration, and are disposed on the upper and lower sides of the power cables, respectively, to combine the ducts 10 for power cables, thereby providing power cables inside. can protect
  • a spiral recessed portion 110 is formed on the outer surface of the duct body 100, which is configured to prevent the duct 10 for the power cable from being heated due to heat generated from the power cable, and the spiral recessed portion 110 As seawater passes between them, the duct 10 for power cables can be cooled.
  • a separate coupling member (not shown) is provided in the spiral recessed portion 110 to clamp the coupling between the duct body 100 and the power cable or between the duct body 100 and the duct body 100 to be strong. may be
  • the protruding coupling portion 200 corresponds to a plurality of configurations spaced apart from one end of the duct body 100 in the width direction along the longitudinal direction of the duct body 100 .
  • a protruding coupling portion 200 protruding from the duct body 100 is formed at one end in the width direction of the duct body 100 having a 'U' shape.
  • the protruding coupling portion 200 is A plurality of dogs are formed spaced apart at regular intervals along the longitudinal direction of.
  • the protruding coupling portion 200 is a configuration for coupling a pair of duct bodies 100 disposed on the upper and lower sides to each other, for example, the protruding coupling portion 200 formed on the lower duct body 100 is It serves to stably couple the pair of duct bodies 100 by combining with the recessed coupling portion 300 to be described later formed in the duct body 100 of the .
  • the recessed coupling portion 300 corresponds to a plurality of configurations formed symmetrically and spaced apart from the protruding coupling portion 200 along the longitudinal direction of the duct body 100 at the other end in the width direction of the duct body 100 .
  • a recessed coupling portion 300 recessed from the duct body 100 is formed at the other end in the width direction of the duct body 100 having a 'U' shape.
  • the recessed coupling portion 300 is a configuration for coupling the upper duct body 100 and the lower duct body 100 to each other, for example, the recessed coupling portion 300 formed on the lower duct body 100 By combining with the protruding coupling part 200 formed on the upper duct body 100, it serves to stably couple the pair of duct bodies 100. It is preferable that the concave coupling part 300 and the protruding coupling part 200 are formed symmetrically to each other so that such a coupling is possible.
  • the recessed coupling part 300 and the protruding coupling part 200 have the same height, width or diameter, and the recessed coupling part 300 and the protruding coupling part 200 are combined with an interference fit.
  • the pair of duct bodies 100 can be easily coupled without using a separate coupling member.
  • the pair of duct bodies 100 may be firmly coupled by providing a separate coupling member as needed.
  • the cable holder 400 is spaced apart along the length direction of the duct body 100 inside the duct body 100, and corresponds to a plurality of configurations for fixing the power cable to prevent the power cable from flowing.
  • the cable holder 400 includes a holder body 410 and a pair of recessed parts 420, and the cable holder 400 is installed to be detachable from the holder support part 500 to be described later.
  • the holder body 410 is configured to be installed inside the duct body 100, and the holder body 410 can be installed in the central region of the duct body 100 having a 'U'-shaped width cross-section. have a 'U' shaped width section.
  • the holder body 410 is spaced apart from each other along the longitudinal direction of the duct body 100 so that a long power cable in the longitudinal direction can be stably supported in the duct body 100 .
  • the recessed portion 420 is a pair of configurations that are recessed on the upper portion of the holder body 410, and is recessed to have the same diameter as or a similar diameter to that of the power cable so that the pair of power cables are respectively seated.
  • the holder support part 500 protrudes from the duct body 100 toward the cable holder 400 to support a plurality of cable holders 400, and is configured to support a plurality of cable holders 400 in the front and rear directions in the width direction of the cable holder 400. It protrudes in pairs and has a structure in which the cable holder 400 is fitted into the space between the pair of holder supports 500. At this time, the holder support part 500 allows the recessed part 420 to protrude at a height lower than the depressed area so that the power cable seated in the recessed part 420 can be stably seated without being hindered by the holder support part 500. .
  • the cable holder 400 can be detachably installed from the holder support part 500. That is, regardless of the diameter of the power cable, after preparing the duct body 100 and producing a suitable cable holder 400 according to the diameter of the power cable, when the cable holder 400 is fitted into the holder support 500, the diameter of the power cable is restricted. It is possible to stably support the power cable within the duct 10 for the power cable without receiving it.
  • the shielding layer 600 is stacked on the inside of the duct body 100 and on the surface of the cable holder 400 to shield electromagnetic waves generated from the power cable.
  • Electromagnetic wave shielding refers to shielding electromagnetic wave interference incident from the outside, and is a technology for preventing electromagnetic wave from being transferred to the inside by absorbing or reflecting it on the surface.
  • the shielding layer 600 prevents marine organisms and the environment from being affected in this way. To prevent leakage of electromagnetic waves to the outside of the power cable duct 10 by providing a.
  • the shielding layer 600 is formed by mixing carbon black and synthetic resin. At this time, the shielding layer 600 is laminated on the inside of the duct body 100 and the surface of the cable holder 400 through painting or by double injection. can be formed through
  • the shielding layer 600 is most preferably a mixture of 15 parts by weight of carbon black and 85 parts by weight of a synthetic resin, and a polyurethane (PU) resin is suitable for the synthetic resin, but is not limited thereto.
  • the shielding layer 600 is formed to a thickness of 0.1 to 1 mm, which can be appropriately adjusted according to the size of electromagnetic waves generated from the power cable.
  • a shielding film (not shown) may be additionally laminated on top of the shielding layer 600, which is laminated using a heat press.
  • shielding efficiency SE
  • dB decibel
  • the shielding efficiency is expressed as the sum of absorption loss A, reflection loss R, and correction factor B due to multiple reflection.
  • the shielding degree is expressed in dB having a negative value, and a 10dB reduction means a 90% shielding effect, and a 20dB reduction means a 99% shielding effect.
  • Comparative Example 1 is a mesh type duct that does not properly protect the power cable and does not include a shielding layer
  • Comparative Example 2 is for the power cable of the present invention.
  • the embodiment shows a duct for power cables including the shielding layer of the present invention.
  • Comparative Example 1 Comparative Example 2 Example Electromagnetic 100% emission reference wave block diagram reference wave block diagram 60Hz 5dB 60Hz 20dB
  • the power cable when a submarine power cable is installed using the duct 10 for a submarine power cable capable of shielding electromagnetic waves according to the present invention, the power cable can be protected from external impact, and electromagnetic waves generated by the power cable can be shielded. It is possible to see the effect of minimizing the effect of electromagnetic waves on marine life and the environment.

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Laying Of Electric Cables Or Lines Outside (AREA)

Abstract

The technical gist of the present invention relates to a duct for a submarine power cable, the duct being capable of shielding electromagnetic waves from the submarine power cable deployed in the seabed and comprising: a duct body provided with the power cable therein and protecting the power cable; a plurality of cable holders which are installed in the duct body to be spaced apart from one another in the lengthwise direction of the duct body and fix the power cable so as to prevent the movement of the power cable; and shielding layers which are laminated in the duct body and on the surfaces of the cable holders and shield the electromagnetic waves generated from the power cable. Accordingly, when the duct for the power cable is used, the power cable can be protected against an external shock, and the electromagnetic waves generated by the power cable can be shielded. Thus, the influence of the electromagnetic waves on marine life and the environment can be minimized.

Description

전자파 차폐가 가능한 해저 전력케이블용 덕트Duct for submarine power cable capable of shielding electromagnetic waves
본 발명은 전자파 차폐가 가능한 해저 전력케이블용 덕트에 관한 것으로, 보다 상세하게는 외부의 충격으로부터 전력케이블을 보호할 수 있으며, 전력케이블에 의해 발생되는 전자파의 차폐가 가능하여 전자파에 의한 해양 생물 및 환경으로의 영향을 최소화할 수 있는 전자파 차폐가 가능한 해저 전력케이블용 덕트에 관한 것이다.The present invention relates to a duct for a submarine power cable capable of shielding electromagnetic waves, and more particularly, to protect a power cable from external impact, and to shield electromagnetic waves generated by a power cable, thereby preventing marine life and damage caused by electromagnetic waves. It relates to a duct for a submarine power cable capable of shielding electromagnetic waves capable of minimizing the impact on the environment.
해저용 전력케이블은 대륙과 대륙, 육지와 섬 등과 같이 바다를 사이에 두고 격리된 두 지점 사이에 전력 및 통신 전달을 위해 해저에 부설되는 케이블을 의미한다. 이러한 전력케이블은 해저에 포설되기 때문에 해류, 조류, 파도 및 해저와의 마찰 등에 의해 손상될 수 있으며, 특히 어업활동이 활발한 지역에서는 닻이나 어구 등에 의해서도 손상될 수 있다. 따라서 이를 방지하기 위해 해저용 전력케이블에 보호용 덕트를 설치하여 전력케이블들을 보호하도록 하고 있다.The submarine power cable refers to a cable laid on the seabed to transmit power and communication between two isolated points across the sea, such as continents and continents or land and islands. Since these power cables are laid on the seabed, they can be damaged by ocean currents, currents, waves, and friction with the seabed. In particular, in areas where fishing activities are active, they can also be damaged by anchors or fishing gear. Therefore, in order to prevent this, a protective duct is installed in the submarine power cable to protect the power cables.
이와 같이 전력케이블을 보호하기 위한 보호용 덕트에 관련된 종래기술은 '대한민국특허청 등록특허 제10-0773953호 해저케이블 보호용 덕트'와 같이, 아치형으로 형성되는 덮개부를 포함하여 아치형 덮개부의 내부에 복수 개의 전력케이블이 한번에 보호되는 기술이 알려져 있다. 하지만 이 경우 각각의 전력케이블을 안정적으로 지지하지 못하기 때문에 전력케이블 간의 마찰에 의해 전력케이블이 손상되는 문제가 발생할 수 있다.As described above, the prior art related to the protective duct for protecting the power cable includes a cover part formed in an arch shape, such as 'Registered Patent No. 10-0773953 duct for submarine cable protection by the Korean Intellectual Property Office', including a plurality of power cables inside the arcuate cover part. This once-protected technique is known. However, in this case, since each power cable cannot be stably supported, a problem of damage to the power cables due to friction between the power cables may occur.
해저에서 해저용 전력케이블은 수 미터 내에서는 자기장의 변화를 나타내지만 20m 이상의 거리에서는 자기장의 변화가 나타나지 않아 주변의 해양 생물 또는 환경에 영향을 주지 않는다고 보고되고 있다. 하지만 자기감도는 해양 생물의 위치파악 및 방향감각과 관련이 있기 때문에 인위적으로 발생하는 전자기장은 해양 생물의 먹이 탐지, 포식, 방향 및 번식에 영향을 줄 가능성이 있다. 이에 따라 해저용 전력케이블의 전자파 문제가 어촌계를 통해 사회적으로 문제화 되고 있으며, 해상풍력단지의 조성사업에서 가장 큰 문제로 대두되고 있기 때문에 전력케이블의 전자파를 차단할 수 있는 전력케이블 덕트가 필요한 실정이다.In the seabed, it is reported that the submarine power cable exhibits a magnetic field change within several meters, but does not affect the surrounding marine life or environment because the magnetic field does not change at a distance of 20 m or more. However, since magnetic sensitivity is related to the localization and orientation of marine organisms, artificially generated electromagnetic fields have the potential to affect prey detection, predation, orientation, and reproduction of marine organisms. Accordingly, the electromagnetic wave problem of submarine power cables is becoming a social issue through fishing villages, and since it is emerging as the biggest problem in the offshore wind farm development project, a power cable duct capable of blocking electromagnetic waves of power cables is required.
본 발명은 상기와 같은 문제점을 해결하기 위해 안출된 것으로, 외부의 충격으로부터 전력케이블을 보호할 수 있으며, 전력케이블에 의해 발생되는 전자파의 차폐가 가능하여 전자파에 의한 해양 생물 및 환경으로의 영향을 최소화할 수 있는 전자파 차폐가 가능한 해저 전력케이블용 덕트를 제공하는 것을 목적으로 한다.The present invention has been made to solve the above problems, and it is possible to protect the power cable from external impact, and to shield electromagnetic waves generated by the power cable, thereby reducing the effect of electromagnetic waves on marine life and the environment. An object of the present invention is to provide a duct for a submarine power cable capable of minimizing electromagnetic wave shielding.
상기한 목적은, 해저에 포설된 해저용 전력케이블로부터 발생하는 전자파 차폐가 가능한 해저 전력케이블용 덕트에 있어서, 상기 전력케이블이 내부에 구비되어 상기 전력케이블을 보호하는 덕트본체; 상기 덕트본체의 내부에 상기 덕트본체의 길이방향을 따라 이격 설치되며, 상기 전력케이블의 유동을 방지하도록 상기 전력케이블을 고정시키는 복수 개의 케이블홀더 및; 상기 덕트본체의 내부 및 상기 케이블홀더의 표면에 적층되어 상기 전력케이블로부터 발생하는 전자파를 차폐하는 차폐층;을 포함하는 것을 특징으로 하는 전자파 차폐가 가능한 해저 전력케이블용 덕트에 의해서 달성된다.The above object is to provide a duct for a submarine power cable capable of shielding electromagnetic waves generated from a submarine power cable laid on the seabed, comprising: a duct main body provided with the power cable inside to protect the power cable; a plurality of cable holders spaced apart from each other along the longitudinal direction of the duct body inside the duct body and fixing the power cable to prevent the power cable from flowing; A shielding layer laminated on the inside of the duct body and on the surface of the cable holder to shield electromagnetic waves generated from the power cable; is achieved by a duct for a submarine power cable capable of shielding electromagnetic waves.
여기서, 상기 덕트본체로부터 상기 케이블홀더를 향해 돌출되어 복수 개의 상기 케이블홀더를 지지하는 복수 개의 홀더지지부;를 더 포함하며, 상기 케이블홀더는 상기 홀더지지부로부터 탈부착가능한 것이 바람직하다.Here, a plurality of holder supports protruding from the duct body towards the cable holders to support a plurality of the cable holders; preferably, the cable holders are detachable from the holder supports.
또한, 상기 차폐층은, 카본블랙 및 합성수지를 혼합하여 형성되는 것이 바람직하다.In addition, the shielding layer is preferably formed by mixing carbon black and synthetic resin.
상술한 바와 같이 본 발명에 따르면, 전력케이블용 덕트를 사용할 경우 외부의 충격으로부터 전력케이블을 보호할 수 있으며, 전력케이블에 의해 발생되는 전자파의 차폐가 가능하여 전자파에 의한 해양 생물 및 환경으로의 영향을 최소화할 수 있는 효과가 있다.As described above, according to the present invention, when using a duct for power cables, the power cables can be protected from external shocks, and electromagnetic waves generated by the power cables can be shielded, so that electromagnetic waves affect marine life and the environment. has the effect of minimizing
도 1은 본 발명의 실시예에 따른 전력케이블용 덕트의 사시도이고,1 is a perspective view of a duct for a power cable according to an embodiment of the present invention;
도 2는 전력케이블용 덕트의 측면도이고,2 is a side view of a duct for power cables;
도 3은 전력케이블용 덕트의 정면도이다.3 is a front view of a duct for power cables.
<부호의 설명><Description of codes>
10: 전력케이블용 덕트10: duct for power cable
100: 덕트본체100: duct body
110: 나선형함몰부110: spiral depression
200: 돌출결합부200: protrusion coupling
300: 함몰결합부300: recessed joint
400: 케이블홀더400: cable holder
410: 홀더본체410: holder body
420: 함몰부420: depression
500: 홀더지지부500: holder support
600: 차폐층600: shielding layer
이하, 본 발명의 기술적 사상을 첨부된 도면을 사용하여 더욱 구체적으로 설명한다. 첨부된 도면은 본 발명의 기술적 사상을 더욱 구체적으로 설명하기 위하여 도시한 일예에 불과하므로 본 발명의 기술적 사상이 첨부된 도면의 형태에 한정되는 것은 아니다.Hereinafter, the technical idea of the present invention will be described in more detail using the accompanying drawings. Since the accompanying drawings are only examples shown to explain the technical idea of the present invention in more detail, the technical idea of the present invention is not limited to the form of the accompanying drawings.
도 1은 본 발명의 실시예에 따른 전력케이블용 덕트의 사시도이고, 도 2는 전력케이블용 덕트의 측면도이고, 도 3은 전력케이블용 덕트의 정면도이다.1 is a perspective view of a duct for power cables according to an embodiment of the present invention, FIG. 2 is a side view of the duct for power cables, and FIG. 3 is a front view of the duct for power cables.
본 발명에 따른 전자파 차폐가 가능한 해저 전력케이블용 덕트(10)는, 해저에 포설된 다수 개의 해저용 전력케이블을 보호하기 위한 것으로, 도 1 및 도 2에 도시된 바와 같이 덕트본체(100), 돌출결합부(200), 함몰결합부(300), 케이블홀더(400), 홀더지지부(500) 및 차폐층(600)을 포함한다.The duct 10 for a submarine power cable capable of shielding electromagnetic waves according to the present invention is for protecting a plurality of submarine power cables installed on the seabed, and as shown in FIGS. 1 and 2, the duct body 100, It includes a protruding coupling part 200, a recessed coupling part 300, a cable holder 400, a holder support part 500 and a shielding layer 600.
덕트본체(100)는, 전력케이블이 내부에 구비되어 전력케이블을 보호하는 구성으로, 덕트본체(100)는 전력케이블(1)의 길이방향을 따라 길게 형성되어 다수 개의 전력케이블을 덕트본체(100)의 길이방향에 대해 평행하게 배치한다. 이때 덕트본체(100)의 폭방향 단면은 'U'자 형상으로 이루어지는데, 'U'자 형상의 덕트본체(100)를 한 쌍으로 구비하여 하나의 덕트본체(100)는 하측에 배치하고, 다른 덕트본체(100)는 상측에 배치하여 하측의 덕트본체(100)에 상측의 덕트본체(100)를 덮개 형식으로 덮어 외부의 충격으로부터 내부에 전력케이블을 보호하게 된다. 즉, 본 발명에 따른 전력케이블용 덕트(10)는 동일한 구성으로 한 쌍으로 구비되며, 전력케이블의 상측 및 하측에 각각 배치시켜 전력케이블용 덕트(10)를 결합시킴으로 인해 내부에 구비되는 전력케이블을 보호할 수 있다The duct body 100 has a power cable inside to protect the power cable, and the duct body 100 is formed long along the length direction of the power cable 1 to provide a plurality of power cables to the duct body 100. ) are placed parallel to the longitudinal direction of At this time, the cross section in the width direction of the duct body 100 is made of a 'U' shape, and a pair of 'U' shaped duct bodies 100 are provided so that one duct body 100 is disposed on the lower side, Another duct body 100 is disposed on the upper side to cover the upper duct body 100 to the lower duct body 100 in the form of a cover to protect the power cable inside from external impact. That is, the ducts 10 for power cables according to the present invention are provided as a pair with the same configuration, and are disposed on the upper and lower sides of the power cables, respectively, to combine the ducts 10 for power cables, thereby providing power cables inside. can protect
이러한 덕트본체(100)의 외면에는 나선형함몰부(110)가 형성되는데, 이는 전력케이블에서 발생하는 열로 인해 전력케이블용 덕트(10)가 가열되는 것을 방지하기 위한 구성으로, 나선형함몰부(110) 사이로 해수가 지나가면서 전력케이블용 덕트(10)를 냉각시킬 수 있도록 한다. 경우에 따라서 나선형함몰부(110)에 별도의 결합부재(미도시)를 구비하여 덕트본체(100)와 전력케이블 간 또는 덕트본체(100)와 덕트본체(100) 간 결합이 견고해지도록 클램핑시킬 수도 있다.A spiral recessed portion 110 is formed on the outer surface of the duct body 100, which is configured to prevent the duct 10 for the power cable from being heated due to heat generated from the power cable, and the spiral recessed portion 110 As seawater passes between them, the duct 10 for power cables can be cooled. In some cases, a separate coupling member (not shown) is provided in the spiral recessed portion 110 to clamp the coupling between the duct body 100 and the power cable or between the duct body 100 and the duct body 100 to be strong. may be
돌출결합부(200)는, 덕트본체(100)의 폭방향 일단에 덕트본체(100)의 길이방향을 따라 이격 형성된 복수 개의 구성에 해당한다. 'U'자 형상으로 이루어진 덕트본체(100)의 폭방향에 대해 일단에 덕트본체(100)로부터 돌출된 돌출결합부(200)가 형성되는데, 이때 돌출결합부(200)는 덕트본체(100)의 길이방향을 따라 복수 개가 일정한 간격으로 이격 형성된다. 이러한 돌출결합부(200)는 상측 및 하측에 배치되는 한 쌍의 덕트본체(100)를 서로 결합시키기 위한 구성으로, 예를 들어 하측의 덕트본체(100)에 형성된 돌출결합부(200)는 상측의 덕트본체(100)에 형성된 후술할 함몰결합부(300)와 결합하여 한 쌍의 덕트본체(100)를 안정적으로 결합시키는 역할을 한다.The protruding coupling portion 200 corresponds to a plurality of configurations spaced apart from one end of the duct body 100 in the width direction along the longitudinal direction of the duct body 100 . A protruding coupling portion 200 protruding from the duct body 100 is formed at one end in the width direction of the duct body 100 having a 'U' shape. At this time, the protruding coupling portion 200 is A plurality of dogs are formed spaced apart at regular intervals along the longitudinal direction of. The protruding coupling portion 200 is a configuration for coupling a pair of duct bodies 100 disposed on the upper and lower sides to each other, for example, the protruding coupling portion 200 formed on the lower duct body 100 is It serves to stably couple the pair of duct bodies 100 by combining with the recessed coupling portion 300 to be described later formed in the duct body 100 of the .
함몰결합부(300)는, 덕트본체(100)의 폭방향 타단에 덕트본체(100)의 길이방향을 따라 돌출결합부(200)와 대칭으로 이격 형성된 복수 개의 구성에 해당한다. 'U'자 형상으로 이루어진 덕트본체(100)의 폭방향에 대해 타단에 덕트본체(100)로부터 함몰된 함몰결합부(300)가 형성되는데, 이때 함몰결합부(300)는 덕트본체(100)의 길이방향을 따라 돌출결합부(200)와 대칭으로 복수 개가 일정한 간격으로 이격 형성된다. 즉, 복수 개의 함몰결합부(300)와 복수 개의 돌출결합부(200)는 서로 마주보도록 대칭으로 이격 배치된다. 이러한 함몰결합부(300)는 상측의 덕트본체(100)와 하측의 덕트본체(100)가 서로 결합하기 위한 구성으로, 예를 들어 하측의 덕트본체(100)에 형성된 함몰결합부(300)는 상측의 덕트본체(100)에 형성된 돌출결합부(200)와 결합하여 한 쌍의 덕트본체(100)를 안정적으로 결합시키는 역할을 한다. 이와 같은 결합이 가능하도록 함몰결합부(300)와 돌출결합부(200)는 서로 대칭으로 형성되는 것이 바람직하다.The recessed coupling portion 300 corresponds to a plurality of configurations formed symmetrically and spaced apart from the protruding coupling portion 200 along the longitudinal direction of the duct body 100 at the other end in the width direction of the duct body 100 . A recessed coupling portion 300 recessed from the duct body 100 is formed at the other end in the width direction of the duct body 100 having a 'U' shape. Along the longitudinal direction of the protruding coupling portion 200 and symmetrically formed a plurality of spaced apart at regular intervals. That is, the plurality of recessed coupling parts 300 and the plurality of protruding coupling parts 200 are symmetrically spaced apart so as to face each other. The recessed coupling portion 300 is a configuration for coupling the upper duct body 100 and the lower duct body 100 to each other, for example, the recessed coupling portion 300 formed on the lower duct body 100 By combining with the protruding coupling part 200 formed on the upper duct body 100, it serves to stably couple the pair of duct bodies 100. It is preferable that the concave coupling part 300 and the protruding coupling part 200 are formed symmetrically to each other so that such a coupling is possible.
이때 함몰결합부(300)와 돌출결합부(200)는 서로 동일한 높이, 폭 또는 직경으로 이루어져 함몰결합부(300)와 돌출결합부(200)가 억지끼움 결합되는 것이 바람직한데, 이와 같이 억지끼움 결합이 이루어질 경우 별도의 결합부재를 사용하지 않아도 한 쌍의 덕트본체(100)를 용이하게 결합시킬 수 있다. 하지만 필요에 따라서 별도의 결합부재를 구비하여 한 쌍의 덕트본체(100)를 견고하게 결합시킬 수도 있다.At this time, it is preferable that the recessed coupling part 300 and the protruding coupling part 200 have the same height, width or diameter, and the recessed coupling part 300 and the protruding coupling part 200 are combined with an interference fit. When the coupling is made, the pair of duct bodies 100 can be easily coupled without using a separate coupling member. However, the pair of duct bodies 100 may be firmly coupled by providing a separate coupling member as needed.
케이블홀더(400)는, 덕트본체의(100) 내부에 덕트본체(100)의 길이방향을 따라 이격 설치되며, 전력케이블의 유동을 방지하도록 전력케이블을 고정시키는 복수 개의 구성에 해당한다. 이러한 케이블홀더(400)는 홀더본체(410) 및 한 쌍의 함몰부(420)를 포함하며, 케이블홀더는(400) 후술할 홀더지지부(500)로부터 탈부착가능하도록 설치된다.The cable holder 400 is spaced apart along the length direction of the duct body 100 inside the duct body 100, and corresponds to a plurality of configurations for fixing the power cable to prevent the power cable from flowing. The cable holder 400 includes a holder body 410 and a pair of recessed parts 420, and the cable holder 400 is installed to be detachable from the holder support part 500 to be described later.
홀더본체(410)는, 덕트본체(100)의 내부에 설치되는 구성으로, 'U'자 형상의 폭단면을 가지는 덕트본체(100)의 중앙영역에 설치될 수 있도록 홀더본체(410)는 하부가 'U'자 형상의 폭단면을 가지도록 한다. 이러한 홀더본체(410)는덕트본체(100)의 길이방향을 따라 내부에 이격 배치되어 길이방향으로 긴 전력케이블이 덕트본체(100) 내에 안정적으로 지지될 수 있도록 한다.The holder body 410 is configured to be installed inside the duct body 100, and the holder body 410 can be installed in the central region of the duct body 100 having a 'U'-shaped width cross-section. have a 'U' shaped width section. The holder body 410 is spaced apart from each other along the longitudinal direction of the duct body 100 so that a long power cable in the longitudinal direction can be stably supported in the duct body 100 .
함몰부(420)는, 홀더본체(410)의 상부에 각각 함몰 형성되는 한 쌍의 구성으로, 한 쌍의 전력케이블이 각각 안착되도록 전력케이블의 직경과 동일 또는 유사한 직경으로 함몰된다.The recessed portion 420 is a pair of configurations that are recessed on the upper portion of the holder body 410, and is recessed to have the same diameter as or a similar diameter to that of the power cable so that the pair of power cables are respectively seated.
홀더지지부(500)는, 덕트본체(100)로부터 케이블홀더(400)를 향해 돌출되어 복수 개의 케이블홀더(400)를 지지하는 구성으로, 케이블홀더(400)의 폭방향에 대해 전방 및 후방에 한 쌍으로 돌출 배치되며, 한 쌍의 홀더지지부(500) 사이의 공간에 케이블홀더(400)가 끼움결합되는 구조로 이루어진다. 이때 홀더지지부(500)는 함몰부(420)가 함몰된 영역보다 낮은 높이로 돌출되도록 하여 함몰부(420)에 안착되는 전력케이블이 홀더지지부(500)에 방해받지 않고 안정적으로 안착될 수 있도록 한다.The holder support part 500 protrudes from the duct body 100 toward the cable holder 400 to support a plurality of cable holders 400, and is configured to support a plurality of cable holders 400 in the front and rear directions in the width direction of the cable holder 400. It protrudes in pairs and has a structure in which the cable holder 400 is fitted into the space between the pair of holder supports 500. At this time, the holder support part 500 allows the recessed part 420 to protrude at a height lower than the depressed area so that the power cable seated in the recessed part 420 can be stably seated without being hindered by the holder support part 500. .
이러한 홀더지지부(500)가 덕트본체(100) 내에 구비됨에 의해 케이블홀더(400)는 홀더지지부(500)로부터 탈부착가능하도록 설치될 수 있다. 즉, 전력케이블의 직경에 관계없이 덕트본체(100)를 준비하고 전력케이블의 직경에 맞춰 적합한 케이블홀더(400)를 생산한 후, 홀더지지부(500) 내에 끼움결합하게 되면 전력케이블의 직경에 구애받지 않고도 전력케이블용 덕트(10) 내에 전력케이블을 안정적으로 지지가능하다.Since the holder support part 500 is provided in the duct body 100, the cable holder 400 can be detachably installed from the holder support part 500. That is, regardless of the diameter of the power cable, after preparing the duct body 100 and producing a suitable cable holder 400 according to the diameter of the power cable, when the cable holder 400 is fitted into the holder support 500, the diameter of the power cable is restricted. It is possible to stably support the power cable within the duct 10 for the power cable without receiving it.
차폐층(600)은, 덕트본체(100)의 내부 및 케이블홀더(400)의 표면에 적층되어 전력케이블로부터 발생하는 전자파를 차폐하는 구성에 해당한다. 전자파 차폐란 외부에서 입사되는 전자파 간섭의 차폐를 의미하는 것으로, 전자파를 표면에서 흡수 또는 반사시켜 내부로 전이되는 것을 방지하기 위한 기술이다. 특히 해저에 설치되는 전력케이블에 의해 발생되는 전자파는 해양 생물의 먹이 탐지, 포식, 방향 및 번식에 영향을 줄 가능성이 높기 때문에, 이와 같이 해양 생물 및 환경에 영향을 끼치지 않도록 차폐층(600)을 구비하여 전력케이블용 덕트(10)의 외부로 전자파가 유출되는 것을 방지하도록 한다.The shielding layer 600 is stacked on the inside of the duct body 100 and on the surface of the cable holder 400 to shield electromagnetic waves generated from the power cable. Electromagnetic wave shielding refers to shielding electromagnetic wave interference incident from the outside, and is a technology for preventing electromagnetic wave from being transferred to the inside by absorbing or reflecting it on the surface. In particular, since electromagnetic waves generated by power cables installed on the seabed are highly likely to affect the detection, predation, direction, and breeding of marine organisms, the shielding layer 600 prevents marine organisms and the environment from being affected in this way. To prevent leakage of electromagnetic waves to the outside of the power cable duct 10 by providing a.
이러한 차폐층(600)은 카본블랙 및 합성수지를 혼합하여 형성되며, 이때 차폐층(600)은 도장을 통해 덕트본체(100)의 내부 및 케이블홀더(400)의 표면에 적층시키거나 또는 이중사출을 통해 형성시킬 수 있다. 여기서 차폐층(600)은 카본블랙이 15중량부, 합성수지가 85중량부 혼합되는 것이 가장 바람직하며, 합성수지는 폴리우레탄(polyurethane, PU) 수지가 적합하나 이에 한정되지는 않는다. The shielding layer 600 is formed by mixing carbon black and synthetic resin. At this time, the shielding layer 600 is laminated on the inside of the duct body 100 and the surface of the cable holder 400 through painting or by double injection. can be formed through Here, the shielding layer 600 is most preferably a mixture of 15 parts by weight of carbon black and 85 parts by weight of a synthetic resin, and a polyurethane (PU) resin is suitable for the synthetic resin, but is not limited thereto.
또한, 차폐층(600)은 0.1 내지 1mm의 두께로 형성되는데, 이는 전력케이블에서 발생되는 전자기파의 크기에 따라 적절하게 조절 가능하다. 경우에 따라서 차폐층(600)의 상부에 추가로 차폐필름(미도시)을 적층시킬 수 있으며, 이는 열프레스를 이용하여 적층된다.In addition, the shielding layer 600 is formed to a thickness of 0.1 to 1 mm, which can be appropriately adjusted according to the size of electromagnetic waves generated from the power cable. In some cases, a shielding film (not shown) may be additionally laminated on top of the shielding layer 600, which is laminated using a heat press.
이하에서는 본 발명의 실시예를 좀 더 상세하게 설명한다.Hereinafter, embodiments of the present invention will be described in more detail.
<실시예><Example>
전자기파의 차폐에 있어서 차폐에 의한 보호능력을 판단할 수 있는 과학적 상수로는 차폐효율(shielding efficiency : SE)로 표현하며, 전자파 강도를 감쇄시킨 정도는 데시벨(dB) 단위를 사용하여 나타낸다. 차폐효율은 흡수손실인 A, 반사손실인 R 그리고 다중반사에 의한 보정계수인 B의 총합으로 표현된다. 차폐도는 음의 값을 가지는 dB로 표현되며, 10dB 감소는 90%의 차폐효과, 20dB 감소는 99% 차폐효과를 의미한다.In the shielding of electromagnetic waves, a scientific constant that can determine the protection ability by shielding is expressed as shielding efficiency (SE), and the degree of attenuation of electromagnetic wave strength is expressed using a decibel (dB) unit. The shielding efficiency is expressed as the sum of absorption loss A, reflection loss R, and correction factor B due to multiple reflection. The shielding degree is expressed in dB having a negative value, and a 10dB reduction means a 90% shielding effect, and a 20dB reduction means a 99% shielding effect.
표 1은 전력케이블용 덕트의 차폐효율을 비교한 것으로, 비교예 1은 전력케이블이 제대로 보호되지 않으면서 차폐층을 포함하고 있지 않은 망태타입의 덕트이며, 비교예 2는 본 발명의 전력케이블용 덕트에서 차폐층을 포함하지 않는 상태에 해당한다. 또한 실시예는 본 발명의 차폐층을 포함하는 전력케이블용 덕트를 나타낸 것이다.Table 1 compares the shielding efficiency of ducts for power cables. Comparative Example 1 is a mesh type duct that does not properly protect the power cable and does not include a shielding layer, and Comparative Example 2 is for the power cable of the present invention. Corresponds to a state in which the shielding layer is not included in the duct. In addition, the embodiment shows a duct for power cables including the shielding layer of the present invention.
비교예 1Comparative Example 1 비교예 2Comparative Example 2 실시예Example
Figure PCTKR2022006320-appb-I000001
Figure PCTKR2022006320-appb-I000001
Figure PCTKR2022006320-appb-I000002
Figure PCTKR2022006320-appb-I000002
Figure PCTKR2022006320-appb-I000003
Figure PCTKR2022006320-appb-I000003
전자파
100% 방출Electromagnetic
100% emission 		기준파reference wave 차단도block diagram 기준파reference wave 차단도block diagram
60Hz60Hz 5dB5dB 60Hz60Hz 20dB20dB
이와 같이 비교한 결과 차폐층의 형성으로 인해 전자기파의 차단도가 매우 증가하는 것을 확인할 수 있었다.As a result of this comparison, it was confirmed that the shielding degree of electromagnetic waves was greatly increased due to the formation of the shielding layer.
이와 같이 본 발명에 따른 전자파 차폐가 가능한 해저 전력케이블용 덕트(10)를 사용하여 해저 전력케이블을 설치할 경우, 외부의 충격으로부터 전력케이블을 보호할 수 있으며, 전력케이블에 의해 발생되는 전자파의 차폐가 가능하여 전자파에 의한 해양 생물 및 환경으로의 영향을 최소화할 수 있는 효과를 볼 수 있다.As described above, when a submarine power cable is installed using the duct 10 for a submarine power cable capable of shielding electromagnetic waves according to the present invention, the power cable can be protected from external impact, and electromagnetic waves generated by the power cable can be shielded. It is possible to see the effect of minimizing the effect of electromagnetic waves on marine life and the environment.
본 발명은 상기한 실시예에 한정되지 아니하며, 적용범위가 다양함은 물론이고, 청구범위에서 청구하는 본 발명의 요지를 벗어남이 없이 다양한 변형 실시가 가능한 것은 물론이다.The present invention is not limited to the above embodiments, and the scope of application is diverse, and various modifications and implementations are possible without departing from the gist of the present invention claimed in the claims.

Claims (3)

  1. 해저에 포설된 해저용 전력케이블로부터 발생하는 전자파 차폐가 가능한 해저 전력케이블용 덕트에 있어서,In the duct for a submarine power cable capable of shielding electromagnetic waves generated from a submarine power cable installed on the seabed,
    상기 전력케이블이 내부에 구비되어 상기 전력케이블을 보호하는 덕트본체;a duct body in which the power cable is provided to protect the power cable;
    상기 덕트본체의 내부에 상기 덕트본체의 길이방향을 따라 이격 설치되며, 상기 전력케이블의 유동을 방지하도록 상기 전력케이블을 고정시키는 복수 개의 케이블홀더 및;a plurality of cable holders spaced apart from each other along the longitudinal direction of the duct body inside the duct body and fixing the power cable to prevent the power cable from flowing;
    상기 덕트본체의 내부 및 상기 케이블홀더의 표면에 적층되어 상기 전력케이블로부터 발생하는 전자파를 차폐하는 차폐층;을 포함하는 것을 특징으로 하는 전자파 차폐가 가능한 해저 전력케이블용 덕트.A duct for a submarine power cable capable of shielding electromagnetic waves, comprising: a shielding layer laminated on the inside of the duct body and on the surface of the cable holder to shield electromagnetic waves generated from the power cable.
  2. 제 1항에 있어서,According to claim 1,
    상기 덕트본체로부터 상기 케이블홀더를 향해 돌출되어 복수 개의 상기 케이블홀더를 지지하는 복수 개의 홀더지지부;를 더 포함하며,A plurality of holder supports protruding from the duct body toward the cable holders to support the plurality of cable holders;
    상기 케이블홀더는 상기 홀더지지부로부터 탈부착가능한 것을 특징으로 하는 전자파 차폐가 가능한 해저 전력케이블용 덕트.The duct for a submarine power cable capable of shielding electromagnetic waves, characterized in that the cable holder is detachable from the holder support.
  3. 제 1항에 있어서,According to claim 1,
    상기 차폐층은,The shielding layer,
    카본블랙 및 합성수지를 혼합하여 형성되는 것을 특징으로 하는 전자파 차폐가 가능한 해저 전력케이블용 덕트.A duct for a submarine power cable capable of shielding electromagnetic waves, characterized in that it is formed by mixing carbon black and synthetic resin.
PCT/KR2022/006320 2022-01-25 2022-05-03 Duct capable of shielding electromagnetic wave for submarine power cable WO2023146024A1 (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4039758B2 (en) * 1999-02-17 2008-01-30 北川工業株式会社 Cable duct
KR100913814B1 (en) * 2008-09-04 2009-08-26 최성락 Device for protecting submarine high tension cable
KR101585222B1 (en) * 2015-06-26 2016-01-13 정칠교 Protecting tube for distribution line in underground
EP2397022B1 (en) * 2009-02-12 2017-11-29 Airbus Operations GmbH Cable connection device, line feedthrough provided therewith, and use thereof
KR20200001236U (en) * 2017-11-02 2020-06-15 페가트론 코포레이션 Shielding case

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100773953B1 (en) 2007-01-22 2007-11-07 (주)한국해양기술 Duct for protecting submarine cable

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4039758B2 (en) * 1999-02-17 2008-01-30 北川工業株式会社 Cable duct
KR100913814B1 (en) * 2008-09-04 2009-08-26 최성락 Device for protecting submarine high tension cable
EP2397022B1 (en) * 2009-02-12 2017-11-29 Airbus Operations GmbH Cable connection device, line feedthrough provided therewith, and use thereof
KR101585222B1 (en) * 2015-06-26 2016-01-13 정칠교 Protecting tube for distribution line in underground
KR20200001236U (en) * 2017-11-02 2020-06-15 페가트론 코포레이션 Shielding case

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