KR101251201B1 - Union structure for connection earthing copper rod - Google Patents

Union structure for connection earthing copper rod Download PDF

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Publication number
KR101251201B1
KR101251201B1 KR1020120039517A KR20120039517A KR101251201B1 KR 101251201 B1 KR101251201 B1 KR 101251201B1 KR 1020120039517 A KR1020120039517 A KR 1020120039517A KR 20120039517 A KR20120039517 A KR 20120039517A KR 101251201 B1 KR101251201 B1 KR 101251201B1
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South Korea
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copper pipe
grounding rod
ground
copper
rod
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KR1020120039517A
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Korean (ko)
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이수규
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이수규
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
    • H01R4/66—Connections with the terrestrial mass, e.g. earth plate, earth pin
    • 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
    • H02G13/00—Installations of lightning conductors; Fastening thereof to supporting structure
    • H02G13/40—Connection to earth

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Abstract

PURPOSE: An engagement structure is provided to prevent intrusion of foreign substances into a copper pipe by combining a first engagement unit to a copper pipe and by compressing a second compression unit. CONSTITUTION: An iron core(2) forms a copper cover and prevents bending of a ground rod. A conical unit(4) is formed in the front end of the ground rod. A rear end integrally connects a copper pipe(10) connecting more than one ground rod(1). In the front end of the ground rod, a first engagement unit(20) guiding insertion of a second compression unit is configured. A second compression unit(30) connecting current flow between the ground rods by compressing a part into the inner diameter of the copper pipe on the first engagement unit. A connection unit(40) between the first engagement unit and the second compression unit inserts the second compression unit into the copper pipe and connects a guiding curved line.

Description

연결식 접지동봉의 결합구조{Union structure for connection earthing copper rod}Union structure for connection earthing copper rod

본 발명은 결합구조가 개선된 연결식 접지동봉에 관한 것으로서, 더욱 상세하게는 접지동봉 1개 이상을 수직으로 연결시키면서 타격에 의해서 지중에 매설할 때 철심을 감싸고 있는 동피복이 밀려서 주름관과 같은 형상으로 접혀지거나 균열되지 않고 확실하게 결합된 상태에서 지중에 매설될 수 있도록 구성된 연결식 접지동봉에 관한 것이다.The present invention relates to a connection type grounding rod with improved coupling structure, and more particularly, to connect one or more grounding rods vertically while buried in the ground by striking, the copper sheath surrounding the iron core is pushed into a corrugated pipe-like shape. The present invention relates to a connection earthing rod configured to be buried underground without being folded or cracked.

주지하는 바와 같이 접지동봉은 지중에 매설되어 철탑, 전주 등 각종 전기 시설물에 구비된 어스용 동선과 연결하여 철탑, 전주 등 각종 전기 시설물에서 발생하는 전류를 받아 지중으로 방전시키는 기능을 하는 것으로서, 다양한 형태로 제작되어 사용되고 있다.As is well known, the grounding rod is buried in the ground and connected to the earth copper wire provided in various electric facilities such as steel towers and electric poles to receive current generated from various electric facilities such as steel towers and electric poles, and discharge it into the ground. It is manufactured and used in the form.

종래 상기와 같은 용도로 사용되는 접지동봉들 중에는 접지동봉 1개 이상을 수직으로 연결시키면서 타격에 의해서 지중에 매설하는 구성의 접지동봉이 있는데, 그 구성을 도 1에서 살펴보면, 접지동봉을 지중에 매설할 때 접지동봉이 휘어지는 것을 방지할 수 있는 강성을 제공하기 위하여 철심이 있고, 전류의 흐름을 극대화시키기 위하여 상기 철심(2)에 동피복(3)이 형성되어 있으며, 그 선단부는 지중에 매설할 때 용이하도록 원추부(4)가 구성되어 있고, 그 후단부는 접지동봉을 1개 이상 연결코자할 때는 접지동봉을 결합할 수 있도록 동파이프(10)가 일체로 연결되어 있는데, 상기 접지동봉의 후단부에 형성된 동파이프(10)의 내경 크기와 접지동봉(1)의 외경에 크기는 상호 결합시 불순물과 수분의 침투를 방지하기 위하여 억지끼움이 될 수 있는 크기로 되어 있고, 또한 상기 동파이프(10)의 깊이는 접지동봉(1)의 선단부를 결합시 휘어지는 것을 방지할 수 있는 최소한의 깊이 50밀리로 구성되어 있다.Among the ground rods conventionally used for the same purpose as above, there is a ground rod having a structure in which one or more ground rods are vertically connected while being buried in the ground by a blow. Referring to FIG. 1, the ground rods are buried in the ground. In order to provide the rigidity to prevent the grounding rod is bent when the copper core, and to maximize the flow of current, the copper sheath (3) is formed on the iron core (2), the front end is buried in the ground The conical part 4 is configured to facilitate when the rear end is connected to one or more ground rods, and the copper pipe 10 is integrally connected to the ground rods. The size of the inner diameter of the copper pipe (10) formed at the end and the outer diameter of the grounding rod (1) is a size that can be interference fit to prevent the penetration of impurities and water at the time of mutual coupling It is, and may also consist of a minimum depth of 50 mm in depth can be prevented from bending when the distal end portion of the ground bond included (1) of the copper pipe 10.

상기와 같이 구성된 접지동봉을 1개 이상 수직으로 연결시키면서 타격에 의해서 지중에 매설하는 과정에서 접지동봉에 발생하는 문제점을 살펴본다.Looking at the problem occurring in the grounding rod in the process of embedding in the ground by the blow while connecting at least one grounding rod configured as above vertically.

먼저, 접지동봉 1개를 타입기를 사용해서 지중에 매설하고, 접지동봉(1)의 후단부에 형성된 동파이프(10)에 접지동봉의 선단부에 형성된 원추부(4)를 끼우고 타격을 하게 되면, 최초 동파이프(10)에 원추부(4)가 진입하여 중심을 잡아주면서 접지동봉이 점점 더 깊이 진입하게 되는데, 상기한 바와 같이 동파이프(10)의 내경 크기와 접지동봉(10)의 외경에 크기가 억지끼움이 되는 크기로 되어 있기 때문에 최초 진입이 어려울 뿐만 아니라, 상호간에 마찰저항이 크게 발생되어 접지동봉의 선단부가 동파이프(10) 내부 끝까지 진입되지 못하고 휘어지는 사례도 있고, 특히 도 1에서 보는 바와 같이 철심(2)을 감싸고 있는 동피복(3)이 동파이프(10)의 가압에 의해 밀려서 동피복의 일부분이 주름관(3')과 같은 형상으로 접혀지거나 균열이 생긴다.First, when one grounding rod is buried in the ground using a type machine, the conical part (4) formed at the tip of the grounding rod is inserted into the copper pipe (10) formed at the rear end of the grounding rod (1), and then hit. As the cone portion 4 enters the first copper pipe 10 to hold the center, the ground rod enters more and more deeply. As described above, the inner diameter of the copper pipe 10 and the outer diameter of the ground rod 10 are as described above. Since the size is such that the size of the fit is difficult, not only the first entry is difficult, but also large frictional resistance is generated between each other, the tip of the grounding rod is not bent to the inner end of the copper pipe 10, there is a case in particular, Figure 1 As shown in the copper coating (3) surrounding the iron core (2) is pushed by the pressure of the copper pipe 10, a part of the copper coating is folded or cracked in the same shape as the corrugated pipe (3 ').

상기와 같이 철심을 감싸고 있는 동피복이 밀려서 주름관과 같은 형상으로 접혀지거나 균열이 생기게 되면, 지중에 매립된 상태에서 수분 침투로 인하여 부식이 되어 접지동봉의 수명이 단축됨으로써, 접지동봉의 보수 및 교체로 인한 업무를 증가시키게 되어 불필요한 비용을 발생시키는 등 많은 문제점이 있다.If the copper sheath covering the iron core is pushed and folded or cracked in the shape of corrugated pipe as described above, it is corroded due to moisture infiltration in the underground, which shortens the life of the grounding rod, thereby repairing and replacing the grounding rod. There are many problems such as increase the work caused by the unnecessary cost.

본 발명에 의한 결합구조가 개선된 연결식 접지동봉은 상기한 문제점을 해결하기 위한 것으로서, 접지동봉 1개 이상을 수직으로 연결시키면서 타격에 의해서 지중에 매설할 때 접지동봉의 후단부에 형성된 동파이프의 내부 끝까지 접지동봉의 선단부가 완전하게 결합 및 압입되어 지중에 매립된 상태에서 불순물은 물론이고, 수분의 침투를 방지할 수 있게 하며,The connection type grounding rod with improved coupling structure according to the present invention is to solve the above problems, and the copper pipe formed at the rear end of the grounding rod when the grounding rod is buried in the ground by connecting at least one grounding rod vertically The tip of the grounding rod is completely joined and pressed to the inner end to prevent the penetration of moisture as well as impurities in the state buried in the ground.

또한, 철심을 감싸고 있는 동피복이 동파이프의 가압에 의해 밀려서 동피복의 일부분이 주름관과 같은 형상으로 접혀지거나 균열이 생기는 종래 문제점을 완벽하게 해결할 수 있는 결합구조가 개선된 연결식 접지동봉을 제공하는데 소기의 목적이 있다.In addition, the copper cladding surrounding the iron core is pushed by the pressure of the copper pipe to provide a connection grounding rod with improved coupling structure that can completely solve the conventional problem that a portion of the copper cladding is folded or cracked like a corrugated pipe. It has a purpose.

상기한 목적을 달성하기 위한 본 발명에 의한 결합구조가 개선된 연결식 접지동봉은, 접지동봉이 휘어지는 것을 방지할 수 있는 강성을 제공하기 위한 철심에 전류의 흐름을 극대화시키기 위한 동피복이 형성되며,The connection type grounding rod with improved coupling structure according to the present invention for achieving the above object is formed with a copper sheath for maximizing the flow of current in the iron core to provide rigidity that can prevent the grounding rod is bent,

접지동봉의 선단부는 지중에 매설할 때 용이하도록 원추부가 구성되어 있고, 후단부는 접지동봉을 1개 이상 연결하기 위한 동파이프가 일체로 연결되며,The tip of the grounding rod is configured with a conical portion for easy embedding in the ground, and the rear end is integrally connected with a copper pipe for connecting one or more grounding rods.

접지동봉 1개 이상을 수직으로 연결시키기 위한 동파이프 내부 끝까지 접지동봉의 선단부가 완전하게 결합 및 압입될 수 있도록 1차 결합부와 2차 압입부로 구성된 것이 본 발명에 특징이다.It is a feature of the present invention that the primary coupling part and the secondary press-fitting part are configured so that the tip of the grounding bar can be completely engaged and press-fitted to the inner end of the copper pipe for vertically connecting at least one grounding bar.

이상과 같은 본 발명에 의한 결합구조가 개선된 연결식 접지동봉에 의하면, 접지동봉 1개 이상을 수직으로 연결시키면서 지중에 매설할 때 접지동봉의 선단부에 구성된 1차 결합부가 동파이프에 결합되고, 2차 압입부가 강제적으로 압입되기 때문에 1차 결합부와 2차 압입부가 동파이프 내부 끝까지 완전하게 결합되는 결과로 지중에 매립된 상태에서 불순물은 물론이고, 수분의 침투를 방지할 수 있는 효과가 있으며,According to the connection type grounding rod with improved coupling structure according to the present invention as described above, when the ground rod is buried vertically while connecting one or more grounding rods, the primary coupling portion configured at the tip of the grounding rod is coupled to the copper pipe, and Since the primary indentation is forcibly indented, the primary coupling part and the secondary indentation part are completely coupled to the inner end of the copper pipe, thereby preventing the penetration of moisture as well as impurities in the underground state.

또한, 철심을 감싸고 있는 동피복이 동파이프의 가압에 의해 밀려서 동피복의 일부분이 주름관과 같은 형상으로 접혀지거나 균열이 생기는 종래 문제점을 완벽하게 해결하여 내구성이 현저하게 향상된 접지동봉을 제공하여 유지 보수 비용을 절감하는 효과가 있다.In addition, the copper cladding surrounding the iron core is pushed by the pressure of the copper pipe, so that a part of the copper cladding is folded into a corrugated pipe or cracks, thereby completely solving the conventional problem, providing a grounding rod with remarkably improved durability. It is effective in reducing costs.

도 1은 종래 접지동봉에서 철심을 감싸고 있는 동피복이 주름관 형상으로 된 상태를 보인 예시도
도 2는 본 발명에 의한 접지동봉의 구성을 보인 사시도,
도 3은 본 발명에 의한 접지동봉의 요부 구성을 보인 예시도
도 4는 발명에 의한 접지동봉이 1차적으로 결합된 예시도
도 5는 도 4의 결합상태를 보인 단면도
도 6은 본 발명에 의한 접지동봉이 완전하게 결합된 예시도
도 7은 도 6의 결합상태를 보인 단면도
도 8은 본 발명에 의한 접지동봉의 사용상태를 보인 예시도1 is an exemplary view showing a state in which the copper cladding wrapping the iron core in the conventional grounding rod in the shape of a corrugated pipe
Figure 2 is a perspective view showing the configuration of the grounding rod according to the present invention,
Figure 3 is an exemplary view showing the main configuration of the grounding rod according to the present invention
4 is an exemplary diagram in which the ground rod according to the present invention is primarily coupled.
5 is a cross-sectional view showing a coupling state of FIG.
6 is an exemplary view of the ground rod is completely coupled according to the present invention
FIG. 7 is a cross-sectional view illustrating a coupling state of FIG. 6.
8 is an exemplary view showing a state of use of the grounding rod according to the present invention

이하, 본 발명에 의한 결합구조가 개선된 연결식 접지동봉에 관한 구성을 상세하게 설명하면 다음과 같다.Hereinafter, the configuration of the connection type grounding rod with improved coupling structure according to the present invention will be described in detail.

본 발명에 의한 결합구조가 개선된 연결식 접지동봉은, 접지동봉(1)이 휘어지는 것을 방지할 수 있는 강성을 제공하기 위한 철심(2)에 전류의 흐름을 극대화시키기 위한 동피복(3)이 형성되며,In the connection type grounding rod with improved coupling structure according to the present invention, the copper cladding 3 for maximizing the flow of current is formed in the iron core 2 to provide rigidity that can prevent the grounding rod 1 from being bent. ,

상기 접지동봉의 선단부는 지중에 매설할 때 용이하도록 원추부(4)가 구성되어 있고, 후단부는 접지동봉(1)을 1개 이상 연결하기 위한 동파이프(10)가 일체로 연결되며,The tip of the grounding rod is conical portion (4) is configured to facilitate when buried in the ground, the rear end is connected to the copper pipe 10 for connecting one or more grounding rod (1) integrally,

상기 접지동봉 1개 이상을 수직으로 연결시키기 위한 동파이프(10) 내부 끝까지 접지동봉의 선단부가 완전하게 결합 및 압입될 수 있게 1차 결합부(20)와 2차 압입부(30)로 구성되어 있고, 1차 결합부(20)와 2차 압입부(30)의 연결부(40)는 완만한 곡선으로 구성되어 동파이프(10) 내에 2차 압입부(30)가 삽입되기 시작할 때 가이드 역할을 하면서 원활하게 압입되도록 하였다.Consists of the primary coupling part 20 and the secondary press-fitting part 30 so that the tip of the grounding rod can be completely engaged and press-fitted to the inner end of the copper pipe 10 for vertically connecting at least one grounding rod. In addition, the connection portion 40 of the primary coupling portion 20 and the secondary indentation portion 30 is composed of a gentle curve to serve as a guide when the secondary indentation portion 30 starts to be inserted into the copper pipe 10. While being pressed in smoothly.

상기 접지동봉을 구성하는 1차 결합부(20)의 지름은 동파이프(10)의 내경보다 0.5밀리(mm) 작게 구성되어 동파이프(10)와 마찰 없이 동파이프의 내부에 완전히 삽입되며, 1차 결합부(20)의 위에 구성되는 2차 압입부(30)의 지름은 동파이프(10)의 내경과 동일하게 구성되어 강제 압입되면서 접지동봉 간에 전류의 흐름을 연결시키도록 구성된다.The diameter of the primary coupling part 20 constituting the grounding rod is 0.5 mm (mm) smaller than the inner diameter of the copper pipe 10 is completely inserted into the copper pipe without friction with the copper pipe 10, 1 The diameter of the secondary press-fit portion 30 configured on the secondary coupling portion 20 is configured to be the same as the inner diameter of the copper pipe 10 and is configured to connect the flow of current between the ground rods while being forcibly pressed.

실시예Example

상기 접지동봉을 구성하는 1차 결합부(20)의 지름은 14밀리~14.5밀리이고, 길이는 22밀리~25밀리이며, 접지동봉을 구성하는 동파이프(10)의 내경은 14.5밀리~15밀리이고, 깊이는 45밀리~50밀리 정도이며, 상기와 같은 수치는 일 예를 보인 것이고, 접지동봉의 굵기에 따라 가감될 수 있다.The diameter of the primary coupling portion 20 constituting the ground rod is 14 millimeters to 14.5 millimeters, the length is 22 millimeters to 25 millimeters, and the inner diameter of the copper pipe 10 constituting the ground rod is 14.5 millimeters to 15 millimeters. Depth is about 45 millimeters to 50 millimeters, and the above figures are examples, and may be added or subtracted according to the thickness of the grounding rod.

도면의 미설명부호 100은 전봇대, 101은 어스용 동선, 102는 지면을 표시한 것이다.In the drawings, reference numeral 100 denotes a power pole, 101 denotes an earth copper wire, and 102 denotes a ground.

이상과 같이 구성된 본 발명에 의한 결합구조가 개선된 연결식 접지동봉에 관한 작용을 상세하게 설명하면 다음과 같다.Referring to the action related to the connection-type grounding rod improved in the coupling structure according to the present invention configured as described above are as follows.

본 발명에 의한 결합구조가 개선된 연결식 접지동봉을 1개 이상 지중에 매설 할 때 먼저 접지동봉(1) 한 개를 일반적으로 접지동봉을 지중에 매설할 때 사용하는 타입기(도시하지 않음)로 지중에 박아준다.When buried grounding rods with improved coupling structure according to the present invention in one or more grounds, first, one grounding rod (1) is generally used as a type group (not shown) used to bury grounding rods in the ground. Drive in the ground.

상기와 같이 한 상태에서 접지동봉의 후단부에 형성된 동파이프(10)에 또 하나의 접지동봉을 구성하는 1차 결합부(20) 전체를 결합한다.As described above, the entire primary coupling part 20 constituting another ground rod is coupled to the copper pipe 10 formed at the rear end of the ground rod.

그러면, 2개의 접지동봉이 동파이프(10)에 결합된 1차 결합부에 의해서 휘어지지 않고 수직상태를 유지하게 되므로 타입기로 타격할 때 편리하며, 이러한 상태에서 타입기로 접지동봉을 타격하게 되면, 2차 압입부(30)가 동파이프(10)에 강제적으로 압입된다.Then, the two ground rods are not bent by the primary coupling portion coupled to the copper pipe 10, so that they are kept in a vertical state, which is convenient when hitting the type machine, and in this state, when the ground rod is hit by the type machine, The secondary press-fit part 30 is forcibly pushed into the copper pipe 10.

상기와 같은 작업과정으로 동파이프(10) 내부 끝까지 접지동봉의 선단부를 구성하는 1차 결합부 및 2차 압입부가 완전하게 결합 및 압입되기 때문에 지중에 매립된 상태에서 불순물은 물론이고, 수분의 침투를 방지할 수 있게 된다.In the process as described above, since the primary coupling portion and the secondary indentation portion constituting the front end portion of the grounding rod to the inner end of the copper pipe 10 are completely combined and press-fitted, impurities, as well as impurities in the state buried in the ground Can be prevented.

또한, 접지동봉을 구성하는 동파이프(10)에 접지동봉의 선단부를 구성하는 1차 결합부(20)와 2차 압입부(30)가 압입될 때 1차 결합부(20)와 2차 압입부(30)의 연결부(40)가 완만한 곡선으로 구성되어 있기 때문에 동파이프(10)에 2차 압입부(30)가 원활하게 압입될 수 있다.In addition, when the primary coupling part 20 and the secondary press-fitting part 30 constituting the front end of the grounding rod are pressed into the copper pipe 10 constituting the grounding rod, the primary coupling part 20 and the secondary press-fitting are performed. Since the connection part 40 of the part 30 is composed of a gentle curve, the secondary press-fit part 30 may be smoothly pressed into the copper pipe 10.

특히, 접지동봉을 구성하는 동파이프에 2차 압입부(30)가 압입되는 깊이가 22밀리~25밀리로 마찰저항이 한계를 벗어나지 않기 때문에 철심을 감싸고 있는 동피복(3)이 동파이프(10)의 가압에 의해 밀려서 동피복(3)의 일부분이 주름관과 같은 형상으로 접혀지거나 균열이 생기는 것을 방지하게 된다.Particularly, the copper sheath (3) surrounding the iron core is a copper pipe (10) because the friction resistance does not exceed the limit of 22 mm to 25 mm in which the secondary indentation part 30 is pressed into the copper pipe constituting the grounding rod. Pushed by) will prevent a portion of the copper sheath 3 from being folded into a corrugated tube or cracked.

1: 접지동봉 2: 철심
3: 동피복 4: 원추부
10: 동파이프 20: 1차 결합부
30: 2차 압입부1: ground rod 2: iron core
3: copper sheath 4: cone
10: copper pipe 20: primary coupling portion
30: secondary indentation

Claims (3)

접지동봉이 휘어지는 것을 방지할 수 있는 강성을 제공하기 위한 철심(2)에 동피복(3)이 형성되고, 접지동봉의 선단부에는 원추부(4)가 구성되어 있고, 후단부는 접지동봉(1)을 한 개 이상 연결하기 위한 동파이프(10)가 일체로 연결된 접지동봉을 구성함에 있어서,
상기 접지동봉 1개 이상을 수직으로 연결시키기 위한 접지동봉의 선단부에는 원추부(4)로부터 동파이프의 내경보다 0.5밀리 작은 직경으로 구성되어 동파이프와 마찰없이 동파이프의 내부에 완전히 삽입되면서 2차 압입부의 삽입을 가이드하는 1차 결합부(20)를 구성하고,
상기 1차 결합부(20)의 위에는 동파이프(10)의 내경에 일부가 강제 압입되어 접지동봉 간에 전류의 흐름을 연결시키는 2차 압입부(30)가 차례로 구성되며,
상기 1차 결합부(20)와 2차 압입부(30) 사이의 연결부(40)는 2차 압입부가 동파이프에 삽입되는 것을 가이드하도록 곡선으로 연결된 것을 특징으로 하는 연결식 접지동봉의 결합구조.A copper sheath 3 is formed in the iron core 2 to provide rigidity that can prevent the grounding rod from bending, and a conical portion 4 is formed at the tip of the grounding rod, and the rear end of the grounding rod 1 In constructing a grounding rod that is connected to the copper pipe (10) integrally connected to one or more,
The tip of the grounding rod for vertically connecting one or more grounding rods has a diameter of 0.5 millimeter smaller than the inner diameter of the copper pipe from the cone portion 4 and is completely inserted into the inside of the copper pipe without friction with the copper pipe. Constitute a primary coupling part 20 for guiding insertion of the press-fitting part,
On the primary coupling part 20, a part of the secondary pipe indentation part 30 is formed in order to connect a current flow between the ground rods by forcibly pressing part of the inner diameter of the copper pipe 10,
The coupling part 40 between the primary coupling part 20 and the secondary indentation part 30 is connected to the ground structure of the connection type grounding bar, characterized in that the secondary indentation is connected in a curve to guide the insertion into the copper pipe. 삭제delete 삭제delete
KR1020120039517A 2012-04-17 2012-04-17 Union structure for connection earthing copper rod KR101251201B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190131186A (en) 2018-05-16 2019-11-26 한국전력공사 Easy guide for ground rods

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55127380U (en) * 1979-03-02 1980-09-09
JPS6225473U (en) * 1985-07-30 1987-02-16
KR200422796Y1 (en) 2006-05-03 2006-08-01 토즈테크놀로지 주식회사 Deep-buried multi ground rod
KR20090003120U (en) * 2007-09-28 2009-04-01 한국전력공사 A copper covered iron grounding rod and coupling with electric compound interposition

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55127380U (en) * 1979-03-02 1980-09-09
JPS6225473U (en) * 1985-07-30 1987-02-16
KR200422796Y1 (en) 2006-05-03 2006-08-01 토즈테크놀로지 주식회사 Deep-buried multi ground rod
KR20090003120U (en) * 2007-09-28 2009-04-01 한국전력공사 A copper covered iron grounding rod and coupling with electric compound interposition

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190131186A (en) 2018-05-16 2019-11-26 한국전력공사 Easy guide for ground rods
KR102118410B1 (en) * 2018-05-16 2020-06-04 한국전력공사 Easy guide for ground rods

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