KR100959409B1 - Facility for protecting optical cable used in information and communications - Google Patents

Facility for protecting optical cable used in information and communications Download PDF

Info

Publication number
KR100959409B1
KR100959409B1 KR1020100008078A KR20100008078A KR100959409B1 KR 100959409 B1 KR100959409 B1 KR 100959409B1 KR 1020100008078 A KR1020100008078 A KR 1020100008078A KR 20100008078 A KR20100008078 A KR 20100008078A KR 100959409 B1 KR100959409 B1 KR 100959409B1
Authority
KR
South Korea
Prior art keywords
optical cable
cable
support part
cover
disposed
Prior art date
Application number
KR1020100008078A
Other languages
Korean (ko)
Inventor
조근환
Original Assignee
대영유비텍 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 대영유비텍 주식회사 filed Critical 대영유비텍 주식회사
Priority to KR1020100008078A priority Critical patent/KR100959409B1/en
Application granted granted Critical
Publication of KR100959409B1 publication Critical patent/KR100959409B1/en

Links

Images

Classifications

    • 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
    • H02G9/06—Installations of electric cables or lines in or on the ground or water in underground tubes or conduits; Tubes or conduits therefor
    • H02G9/065—Longitudinally split tubes or conduits therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
    • F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
    • F16L1/06—Accessories therefor, e.g. anchors
    • F16L1/11—Accessories therefor, e.g. anchors for the detection or protection of pipes in the ground
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4439—Auxiliary devices
    • G02B6/4459—Ducts; Conduits; Hollow tubes for air blown fibres
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Engineering (AREA)
  • Light Guides In General And Applications Therefor (AREA)

Abstract

PURPOSE: A fiber optic cable protection facility for information communications is provided to prevent the damage of a cable pipe by arranging a cable pipe between a support part and an intimate cover. CONSTITUTION: An optical cable(11) is arranged inside a cable pipe(10). The support part(100) has a trapezoidal cross-section. An uneven part is formed in the lower-part of the support part. A groove is formed in the center of the upper side of the support part. The cable pipe is installed to the mounting groove of the support part. An intimate cover(200) is fixed to the support part by both sides adhesion bend. A protective cover(300) is arranged between an earth and the intimate cover.

Description

정보통신용 광케이블 보호시설{FACILITY FOR PROTECTING OPTICAL CABLE USED IN INFORMATION AND COMMUNICATIONS}FACILITY FOR PROTECTING OPTICAL CABLE USED IN INFORMATION AND COMMUNICATIONS}

본 발명은 광케이블 보호시설에 관한 것으로서, 보다 구체적으로는 지중에 매설되는 광케이블관의 훼손을 방지함과 동시에 이의 유지보수 또한 용이하게 하기 위한 정보통신용 광케이블 보호시설에 관한 것이다.
The present invention relates to an optical cable protection facility, and more particularly, to an information communication optical cable protection facility for preventing damage to an optical cable pipe buried in the ground and facilitating its maintenance.

최근에 들어 인터넷과 같은 네트워크 통신망 기술이 급속히 발달되면서 보다 빠른 사용자간 정보 통신을 위해 정보통신용 광케이블을 지중에 매설하여 사용하고 있다.
Recently, as the network communication network technology such as the Internet is rapidly developed, the optical communication cable is buried in the ground for faster information communication between users.

그런데 이러한 종래의 광케이블 설치는 내부에 광케이블이 배치되는 케이블관을 도 1에서와 같이 단독으로 설치하고 있음에 따라 지반 침하와 같은 이유로 그 케이블관이 구부러짐으로 인해 광케이블이 훼손되는 경우가 있어 유지보수를 위한 막대한 비용을 초래하는 문제점이 있다.
However, in the conventional optical cable installation, since the cable pipe in which the optical cable is disposed is installed alone as shown in FIG. 1, the optical cable may be damaged due to the bending of the cable pipe due to ground subsidence. There is a problem that incurs enormous costs.

본 발명은 상기한 종래 기술의 문제점을 해결하기 위해 안출된 것으로서, 지중에 매설되는 광케이블관의 훼손을 방지함과 동시에 이의 유지보수 또한 용이하게 하기 위한 정보통신용 광케이블 보호시설을 제공하는데 그 목적이 있다.
The present invention has been made to solve the above problems of the prior art, and an object of the present invention is to provide an optical communication cable protection facility for preventing damage to the optical cable pipe buried in the ground and at the same time easy maintenance. .

상기 목적을 달성하기 위하여, 본 발명은, 지반으로부터 굴삭된 부위의 바닥면에 메꿈된 다음으로 다져진 모래에 밀착되도록 하면에 요철부가 형성되고, 상면 중앙부 길이방향을 따라 내측에 광케이블이 배치된 케이블관이 안착되는 안착홈이 형성되며, 상기 안착홈과 동일방향으로 그 안착홈 하측에 삽입홈이 형성되되, 상기 삽입홈에 끼움가능한 연결부재에 의해 상호간에 결합되어 일직선으로 배치되고 단면이 사다리꼴 형상인 복수개의 받침부와; 상기 케이블관이 받침부에 안착된 상태에서 그 케이블관의 노출된 부분과 받침부의 상면 및 측면 일부에 내면이 밀착되는 형상을 갖고 양면 접착밴드에 의해 상기 받침부에 고정되는 밀착커버와; 상기 지반에 수평하도록 상기 굴삭된 부위에 메꿈되는 토사와 상기 밀착커버 사이에 배치되어 하측으로 광케이블이 위치하고 있음을 표시하기 위한 보호덮개;로 구성되는 것을 특징으로 한다.
In order to achieve the above object, the present invention, the concave-convex portion is formed in the lower surface to be in close contact with the sand and then compacted to the bottom surface of the excavated portion from the ground, the cable tube is arranged in the inner side along the longitudinal direction of the upper surface central portion The seating groove is formed to be seated, the insertion groove is formed in the lower side of the seating groove in the same direction as the seating groove, are coupled to each other by a connecting member that can be fitted to the insertion groove is arranged in a straight line and the cross section is trapezoidal shape A plurality of support parts; A close cover having a shape in which the inner surface is in close contact with the exposed part of the cable pipe and the upper and side portions of the support part in a state where the cable pipe is seated on the support part and fixed to the support part by a double-sided adhesive band; And a protective cover disposed between the earth and sand adhered to the excavated portion so as to be horizontal to the ground and indicating that the optical cable is located downward.

여기서 상기 보호덮개는 원단을 그 재질로 하여 겹으로 이루어진 표시부와, 길이방향을 따라 상기 표시부의 겹 사이로 형성된 복수개의 관통공에 삽입되는 연성의 인장재와, 상기 인장재를 토사에 고정하기 위한 고정핀으로 이루어지는 것을 특징으로 한다.
Here, the protective cover is a display portion consisting of a layer made of a fabric as a material, a flexible tension member inserted into a plurality of through-holes formed between the folds of the display portion along the longitudinal direction, and a fixing pin for fixing the tension member to earth and sand Characterized in that made.

상술된 바와 같이, 본 발명에 따른 정보통신용 광케이블 보호시설은 받침부와 밀착커버 사이에 케이블관을 배치하여 그 케이블관이 구부러지거나 비틀리지 않도록 하여 광케이블을 보호하는 한편으로, 그 밀착커버만을 제거한 상태에서 케이블관의 교체가 가능함에 따라 이의 유지관리 또한 용이하게 수행할 수 있도록 한다.
As described above, the information communication optical cable protection facility according to the present invention arranges the cable pipe between the support and the close cover to protect the cable so that the cable pipe is not bent or twisted, while only the close cover is removed. As the cable pipes can be replaced, the maintenance thereof can be easily performed.

도 1은 종래 광케이블 설치의 문제점을 나타낸 도면.
도 2는 본 발명에 따른 정보통신용 광케이블 보호시설의 설치상태를 나타낸 단면도.
도 3은 본 발명에 따른 정보통신용 광케이블 보호시설을 도시한 분해사시도.1 is a view showing a problem of conventional optical cable installation.
Figure 2 is a cross-sectional view showing the installation state of the optical cable protection facility for information communication according to the present invention.
Figure 3 is an exploded perspective view showing the optical cable protection facility for information communication according to the present invention.

이하, 도면을 참조로 하여 본 발명에 따른 정보통신용 광케이블 보호시설을 설명하기로 한다.
Hereinafter, with reference to the drawings will be described the optical cable protection facility for information communication according to the present invention.

도 1은 종래 광케이블 설치의 문제점을 나타낸 도면이고, 도 2는 본 발명에 따른 정보통신용 광케이블 보호시설의 설치상태를 나타낸 단면도이며, 도 3은 본 발명에 따른 정보통신용 광케이블 보호시설을 도시한 분해사시도이다.
1 is a view showing the problem of the conventional optical cable installation, Figure 2 is a cross-sectional view showing the installation state of the optical cable protection facility for information communication according to the present invention, Figure 3 is an exploded perspective view showing the optical cable protection facility for information communication according to the present invention. to be.

본 발명에 따른 정보통신용 광케이블 보호시설은 기본적으로 내부에 광케이블(11)이 배치된 케이블관(10)이 안착되는 받침부(100)와, 받침부(100) 및 케이블관(10)과 함께 밀착 고정되는 밀착커버(200)와, 광케이블(11)의 위치를 나타내기 위한 보호덮개(300)로 구성된다.
The optical cable protection facility for information communication according to the present invention basically adheres closely to the support part 100 and the support part 100 and the cable pipe 10 on which the cable pipe 10 in which the optical cable 11 is disposed is mounted. The cover 200 is fixed, and a protective cover 300 for indicating the position of the optical cable (11).

상기 받침부(100)는 지반으로부터 굴삭된 부위의 바닥면에 메꿈된 다음으로 다져진 모래에 밀착되도록 하면에 요철부(101)가 형성되고, 상면 중앙부 길이방향을 따라 내측에 광케이블(11)이 배치된 케이블관(10)이 안착되는 안착홈(102)이 형성되며, 안착홈(102)과 동일방향으로 그 안착홈(102) 하측에 삽입홈(103)이 형성되되, 삽입홈(103)에 끼움가능한 연결부재(110)에 의해 복수개가 상호간에 결합되어 일직선으로 배치되고 단면이 사다리꼴 형상인 것으로, 요철부(101)에 의해 받침부(100)가 평탄하게 다져진 모래면에서 미끌리는 현상이 방지되어 케이블관(10)이 비틀리지 않게 된다.
The supporting part 100 is formed on the bottom surface of the bottom surface of the excavated portion from the ground to be in close contact with the compacted sand, and an uneven portion 101 is formed, and the optical cable 11 is disposed on the inner side along the longitudinal direction of the central portion of the upper surface. The seating groove 102 is formed in which the cable tube 10 is seated, and the insertion groove 103 is formed below the seating groove 102 in the same direction as the seating groove 102, and the insertion groove 103 is The plurality of fitting members 110 are connected to each other and are arranged in a straight line and have a trapezoidal shape in cross section, and the sliding part 100 is prevented from slipping on the sand surface where the support part 100 is flattened by the uneven portion 101. As a result, the cable tube 10 is not twisted.

여기서 상기 받침부(100) 하면에 메꿈된 모래층을 통과하여 바닥면에 인접하는 정도의 크기를 갖는 핀 형상의 고정부(미도시)를 더 설치하여 그 받침부(100)의 위치가 변동되는 것을 막을 수도 있다.
In this case, the bottom of the support portion 100 passes through the layer of sand that is filled with a pin-shaped fixing portion (not shown) having a size that is adjacent to the bottom surface to further change the position of the support portion 100 You can stop it.

상기 밀착커버(200)는 케이블관(10)이 받침부(100)에 안착된 상태에서 그 케이블관(10)의 노출된 부분과 받침부(100)의 상면 및 측면 일부에 내면이 밀착되는 형상을 갖고 양면 접착밴드(20)에 의해 받침부(100)에 고정되는 것으로, 받침부(100)에 용접 또는 볼팅 방식에 의해 고정될 수도 있으나 그 과정이 복잡하고 번거로움에 따라 접착밴드(20)만을 사용하여 그 고정상태를 유지하도록 한다.
The close cover 200 has a shape in which the inner surface is in close contact with the exposed portion of the cable tube 10 and the upper and side portions of the support portion 100 while the cable tube 10 is seated on the support portion 100. Having fixed to the support portion 100 by the double-sided adhesive band 20, it may be fixed to the support portion 100 by welding or bolting method, but the adhesive band 20 according to the complicated and cumbersome process Use only to keep it fixed.

상기 보호덮개(300)는 지반에 수평하도록 굴삭된 부위에 메꿈되는 토사와 밀착커버(200) 사이에 배치되어 하측으로 광케이블(11)이 위치하고 있음을 표시하기 위한 것으로, 원단을 그 재질로 하여 겹으로 이루어진 표시부(310)와, 길이방향을 따라 표시부(310)의 겹 사이로 형성된 복수개의 관통공에 삽입되는 연성의 인장재(320)와, 인장재(320)를 토사에 고정하기 위한 고정핀(미도시)으로 이루어진다.
The protective cover 300 is disposed between the soil cover and the close contact cover 200 to be filled in the excavated horizontally to the ground to indicate that the optical cable 11 is located on the lower side, the fabric is laminated with the material The display unit 310 is made of a flexible tension member 320 is inserted into the plurality of through holes formed between the layers of the display unit 310 along the longitudinal direction, and a fixing pin for fixing the tension member 320 to the soil (not shown) )

상기와 같은 보호덮개(300)의 구조에 따르면, 표시부(310)에 도 3에서와 같이 광케이블이 매설되어 있음을 육안으로 확인가능하게 하는 문자, 도형 등이 인쇄되어 있어 무분별한 굴삭작업에 따른 광케이블(11)의 훼손을 방지하는 한편으로, 연성의 인장재(320)를 통해 보호덮개(300)를 감거나 펼칠 수 있음에 따라 그 보관 또는 설치를 용이하게 할 수 있다.
According to the structure of the protective cover 300 as described above, the display portion 310 is printed with letters, figures, etc. to visually confirm that the optical cable is buried as shown in FIG. While preventing the damage of 11), as the protective cover 300 can be wound or spread through the flexible tension member 320, the storage or installation thereof can be facilitated.

하기에서는 본 발명에 따른 정보통신용 광케이블 보호시설의 시공과정에 대해 살펴보기로 한다.
Hereinafter, the construction process of the optical cable protection facility for information communication according to the present invention will be described.

우선적으로 받침부(100)가 매설될 지반을 굴삭하고, 그 굴삭된 부위 바닥면에 모래를 채워넣고 평탄하게 다진 다음으로 복수개의 받침부(100)를 연결부재(110)로 상호간에 결합하면서 그 하면이 그 모래면과 밀착되도록 배치한다.
First of all, the ground on which the supporting portion 100 is to be embedded is excavated, the sand is filled in the bottom surface of the excavated portion, and then chopped flatly, and then the plurality of supporting portions 100 are coupled to each other by the connecting member 110. Place it so that the bottom surface is in close contact with the sand surface.

이후로 케이블관(10) 및 광케이블(11)을 받침부(100)에 배치한 상태에서 접착밴드(20)로 밀착커버(200)를 받침부(100)에 고정시킨다.
Thereafter, the cable tube 10 and the optical cable 11 are fixed to the support part 100 by the adhesive band 20 with the adhesive band 20 in a state in which the support part 100 is disposed.

다음으로는 토사를 밀착커버(200)로부터 지반의 수평면 아래의 일정높이까지 채워넣고 다진 다음으로 보호덮개(300)를 위치시키고, 그 후에 다시 토사를 지반과 수평하게 채워넣고 다짐으로써 전체적인 시공과정이 완료된다.Next, fill the soil from the close cover 200 to a certain height below the horizontal plane of the ground, and then chopped, then place the protective cover 300, and then fill the soil horizontally with the ground and then compacted the overall construction process Is done.

Claims (2)

지반으로부터 굴삭된 부위의 바닥면에 메꿈된 다음으로 다져진 모래에 밀착되도록 하면에 요철부(101)가 형성되고, 상면 중앙부 길이방향을 따라 내측에 광케이블(11)이 배치된 케이블관(10)이 안착되는 안착홈(102)이 형성되며, 상기 안착홈(102)과 동일방향으로 그 안착홈(102) 하측에 삽입홈(103)이 형성되되, 상기 삽입홈(103)에 끼움가능한 연결부재(110)에 의해 상호간에 결합되어 일직선으로 배치되고 단면이 사다리꼴 형상인 복수개의 받침부(100)와;
상기 케이블관(10)이 받침부(100)에 안착된 상태에서 그 케이블관(10)의 노출된 부분과 받침부(100)의 상면 및 측면 일부에 내면이 밀착되는 형상을 갖고 양면 접착밴드(20)에 의해 상기 받침부(100)에 고정되는 밀착커버(200)와;
상기 지반에 수평하도록 상기 굴삭된 부위에 메꿈되는 토사와 상기 밀착커버(200) 사이에 배치되어 하측으로 광케이블(11)이 위치하고 있음을 표시하기 위한 보호덮개(300);로 구성되는 것을 특징으로 하는 정보통신용 광케이블 보호시설.The concave-convex portion 101 is formed on the bottom surface so as to be in contact with the sand compacted after being made to the bottom surface of the excavated portion from the ground, and the cable tube 10 in which the optical cable 11 is disposed on the inner side along the longitudinal direction of the central portion of the upper surface is A seating groove 102 to be seated is formed, and an inserting groove 103 is formed below the seating groove 102 in the same direction as the seating groove 102, and can be fitted to the insertion groove 103. A plurality of support parts 100 coupled to each other by 110 and disposed in a straight line and having a trapezoidal cross section;
In the state in which the cable tube 10 is seated on the supporting part 100, the inner surface is in close contact with the exposed part of the cable tube 10 and the upper and side portions of the supporting part 100, and a double-sided adhesive band ( A close cover 200 fixed to the support part 100 by 20);
A protective cover 300 disposed between the earth and sand adhered to the excavated portion so as to be horizontal to the ground and the close cover 200 to indicate that the optical cable 11 is located downward; Optical cable protection facility for information and communication. 청구항 1에 있어서,
상기 보호덮개(300)는 원단을 그 재질로 하여 겹으로 이루어진 표시부(310)와, 길이방향을 따라 상기 표시부(310)의 겹 사이로 형성된 복수개의 관통공에 삽입되는 연성의 인장재(320)와, 상기 인장재(320)를 토사에 고정하기 위한 고정핀으로 이루어지는 것을 특징으로 하는 정보통신용 광케이블 보호시설.The method according to claim 1,
The protective cover 300 is a display portion 310 made of a layer made of a fabric material, a flexible tension member 320 inserted into a plurality of through-holes formed between the layers of the display portion 310 along the longitudinal direction; Optical cable protection facility for the information communication, characterized in that consisting of a fixing pin for fixing the tension member 320 to the soil.
KR1020100008078A 2010-01-28 2010-01-28 Facility for protecting optical cable used in information and communications KR100959409B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020100008078A KR100959409B1 (en) 2010-01-28 2010-01-28 Facility for protecting optical cable used in information and communications

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020100008078A KR100959409B1 (en) 2010-01-28 2010-01-28 Facility for protecting optical cable used in information and communications

Publications (1)

Publication Number Publication Date
KR100959409B1 true KR100959409B1 (en) 2010-05-24

Family

ID=42282003

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020100008078A KR100959409B1 (en) 2010-01-28 2010-01-28 Facility for protecting optical cable used in information and communications

Country Status (1)

Country Link
KR (1) KR100959409B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107749607A (en) * 2017-11-20 2018-03-02 江门市利安水电装饰工程有限公司 A kind of cable protection external member and cable trough
KR102646142B1 (en) * 2023-03-07 2024-03-12 (주)반석기술단 Providing method of protection devices for transmission, substation and distribution cables

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100730702B1 (en) 2007-02-27 2007-06-21 (주)한신콘설탄트 Construction structure of underground power cable
KR100830883B1 (en) 2008-02-18 2008-05-22 (주)고려이엔씨 Protection tube for subterranean cable
KR100859014B1 (en) 2008-04-21 2008-09-22 주식회사 한국전설기술단 Protection device for power-transmission and distribution and transformation cable

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100730702B1 (en) 2007-02-27 2007-06-21 (주)한신콘설탄트 Construction structure of underground power cable
KR100830883B1 (en) 2008-02-18 2008-05-22 (주)고려이엔씨 Protection tube for subterranean cable
KR100859014B1 (en) 2008-04-21 2008-09-22 주식회사 한국전설기술단 Protection device for power-transmission and distribution and transformation cable

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107749607A (en) * 2017-11-20 2018-03-02 江门市利安水电装饰工程有限公司 A kind of cable protection external member and cable trough
KR102646142B1 (en) * 2023-03-07 2024-03-12 (주)반석기술단 Providing method of protection devices for transmission, substation and distribution cables

Similar Documents

Publication Publication Date Title
KR100673542B1 (en) Support construction of underground cable
KR100733783B1 (en) Protection apparatus for a subterranean cable line
KR100957234B1 (en) Protective pipe for underground cable
WO2004106981A2 (en) Exterior installation of armored fiber optic cable
KR100959409B1 (en) Facility for protecting optical cable used in information and communications
KR100859014B1 (en) Protection device for power-transmission and distribution and transformation cable
EP2166392B1 (en) Splice box in an underground vault
KR101371026B1 (en) The self supporting cable tray assembly mounted cable unit for preventing separating
KR100736833B1 (en) Protection installation structure of underground power cable
KR100714438B1 (en) Protection installation structur of underground power cable
JP5283721B2 (en) Protective plate posture holder and underground structure protection structure
KR100656175B1 (en) Protection installation structur of underground power cable
US20230307899A1 (en) Ground Level Primary Electric Distribution System
KR100784144B1 (en) Cable protective pipe reinforce apparatus for underground transmission line
KR100731957B1 (en) A case for prevention damage of a drain pipe
CN201765362U (en) Beam concentrating pipe used for mounting micro cable
EP2166393B1 (en) Underground storage vault for splice box
KR101179244B1 (en) Structure of protective pipe for underground transmission easy to attached and detached and preventing breakage of cable
EP2166391B1 (en) Splice box and marking device
KR100983103B1 (en) Fixing device of permanent magnet for marking the pipe
KR20090111192A (en) Installer of manhole pipe and execution method of pipe
JP2014205987A (en) Tunnel protective sheet and method of constructing the same
KR100649553B1 (en) Plate structure for producting cable buried in underground of housing development
RU151812U1 (en) FIBER OPTICAL LINK
KR101916740B1 (en) Protecting pipe of underground cable comprising lubricant

Legal Events

Date Code Title Description
A201 Request for examination
A302 Request for accelerated examination
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20130614

Year of fee payment: 4

FPAY Annual fee payment

Payment date: 20140514

Year of fee payment: 5

FPAY Annual fee payment

Payment date: 20150514

Year of fee payment: 6

FPAY Annual fee payment

Payment date: 20160513

Year of fee payment: 7

FPAY Annual fee payment

Payment date: 20190514

Year of fee payment: 10