KR20030030283A - undulate earth-rod - Google Patents

undulate earth-rod Download PDF

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Publication number
KR20030030283A
KR20030030283A KR1020010062146A KR20010062146A KR20030030283A KR 20030030283 A KR20030030283 A KR 20030030283A KR 1020010062146 A KR1020010062146 A KR 1020010062146A KR 20010062146 A KR20010062146 A KR 20010062146A KR 20030030283 A KR20030030283 A KR 20030030283A
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KR
South Korea
Prior art keywords
ground
ground rod
rod
power equipment
earth
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KR1020010062146A
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Korean (ko)
Inventor
김종한
Original Assignee
한국전력공사
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Priority to KR1020010062146A priority Critical patent/KR20030030283A/en
Publication of KR20030030283A publication Critical patent/KR20030030283A/en

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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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  • Manufacturing Of Electrical Connectors (AREA)

Abstract

PURPOSE: A waveform ground rod is provided to reduce ground resistance to voltage and current transmitted from power equipment, thereby easily flowing current into the ground. CONSTITUTION: A cylindrical head(22) includes a hollow(22a) inside to contain a lead terminal(12) of power equipment. A body part(24) is extensively formed from a lower part of the cylindrical head. The body part includes a plurality of creases at an outer peripheral surface to widen a contact area between the body part and the earth. A wedge part(26) is integrally formed with a lower end of the body part. A waveform ground rod is buried at the ground where electricity is used with the power equipment. The lead terminal is mounted inside the head part of the waveform ground rod to connect the buried waveform ground rod to the power equipment.

Description

파형 접지봉{undulate earth-rod}Corrugated ground rod

본 발명은 파형 접지봉에 관한 것으로, 특히 대지 토양에 접촉되는 외측면의 접촉면적을 극대화시켜 접지저항을 대폭 저감시킬 수 있도록 한 파형 접지봉에 관한 것이다.The present invention relates to a corrugated ground rod, and more particularly to a corrugated ground rod to maximize the contact area of the outer surface in contact with the ground soil to significantly reduce the ground resistance.

일반적으로, 접지봉은 낙뢰나 이상 전압으로부터 인체나 여타의 기기 등을 보호하기 위하여 전기적으로 대지와 접속시키는 것으로서, 접지봉의 접지저항 저감을 위한 중요한 인자들은 접지봉 자체의 특성, 주변 대지 토양의 특성 및 접지봉과 토양의 접촉저항으로 구분된다.In general, ground rods are electrically connected to the earth to protect the human body or other devices from lightning or abnormal voltage. Important factors for reducing the ground resistance of ground rods are the characteristics of the ground rod itself, the characteristics of the surrounding ground soil, and ground rods. And contact resistance of soil.

여기에서 주변 토양의 특성은 이미 결정되어진 상태이고, 접지봉 자체의 특성과 토양과의 접촉저항은 조절 가능한 요소인데, 접지의 효과를 결정짓는 가장 중요한 성질은 접지봉과 대지 토양과의 접촉저항이라는 것으로 알려져 있다.Here, the characteristics of the surrounding soil are already determined, and the characteristics of the ground rod itself and the contact resistance with the soil are adjustable factors. The most important property that determines the effect of the ground is the contact resistance between the ground rod and the ground soil. have.

종래 접지봉은 도 1에 도시된 바와 같이, 전력설비의 리드단자(12)가 삽입되도록 상단부에 원통형 중공(22a)이 형성되는 헤드부(22)와, 헤드부(22)의 하측으로 길게 연장 형성되며 내부가 충전된 몸체부(24)와, 몸체부(24)의 하측에 쇄기형으로 형성된 쇄기부(26)로 구성된다.As shown in FIG. 1, the conventional ground rod is formed to extend to the lower side of the head portion 22 and the head portion 22, the cylindrical hollow 22a is formed at the upper end so that the lead terminal 12 of the power equipment is inserted. It is composed of a body portion 24 filled with an inside, and a wedge portion 26 formed in a wedge shape on the lower side of the body portion 24.

이 접지봉은 지표면 내부에 설치되므로, 그 재료가 토양의 성질과 너무 이질적이면 토양과의 일체화가 이루어지지 않아서 원활하게 전류를 땅속으로 흘려보내 소멸시키기 어렵게 된다.Since the ground rod is installed inside the earth's surface, if the material is too heterogeneous with the soil property, it will not be integrated with the soil, making it difficult to smoothly flow an electric current to disappear.

따라서 대지와의 접촉 저항을 저감시키는 동시에 대지 토양과의 밀착력을 높여 접지 저항 저감 효과를 증가시키기 위하여 접지봉의 설치시 화학 저감제를 첨가하는 방법을 사용하고 있으나, 이는 수시로 화학 저감제를 투입해야 하는 단점이있었다.Therefore, in order to reduce the contact resistance with the earth and increase the adhesion to the earth soil and increase the effect of reducing the earth resistance, a chemical reducing agent is added during the installation of the ground rod. There was a downside.

본 발명은 상기한 제반문제점을 감안하여 이를 해결하고자 안출된 것으로, 그 목적은 토양과 접지봉 자체의 접촉면적을 극대화시켜 접지저항을 대폭 저감시킬 수 있도록 한 파형 접지봉을 제공하는 데 있다.The present invention has been made in view of the above-mentioned problems, and an object thereof is to provide a corrugated ground rod that can greatly reduce the ground resistance by maximizing the contact area between the soil and the ground rod itself.

도 1은 종래 접지봉을 개략적으로 나타낸 도면.1 is a view schematically showing a conventional ground rod.

도 2는 본 발명에 따른 파형 접지봉의 일 실시예를 나타낸 도면.2 is a view showing an embodiment of a waveform ground rod according to the present invention.

도 3은 도 2의 A-A 선 단면도.3 is a cross-sectional view taken along the line A-A of FIG.

도 4는 본 발명의 다른 실시예를 나타낸 평단면도.Figure 4 is a plan sectional view showing another embodiment of the present invention.

도 5은 본 발명 실시예들의 사용상태를 나타낸 것으로,5 shows a state of use of the embodiments of the present invention,

도 5a는 본 발명의 파형 접지봉들이 병렬 연결된 것을 나타낸 도면,5a is a view showing that the waveform ground rods of the present invention connected in parallel,

도 5b는 본 발명의 파형 접지봉들이 직렬 연결된 것을 나타낸 도면이다.5B is a view showing that the waveform ground rods of the present invention are connected in series.

* 도면의 주요부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings

10 : 전력설비12 : 리드단자10: power equipment 12: lead terminal

20 : 접지봉22 : 헤드부20: ground rod 22: head

22a : (헤드부의)중공24 : 몸체부22a: hollow (head) 24: body

24a : 통공24b : 주름24a: through hole 24b: wrinkle

26 : 쇄기부26: writing machine

상기한 목적을 달성하기 위한 본 발명은 내부에 중공을 갖는 원통형의 헤드부와, 헤드부의 하측에 길게 연장 형성되며 외주면에 다수개의 주름이 형성된 몸체부와, 그 몸체부의 하단에 원추형으로 일체 형성된 쇄기부로 구성된 것을 특징으로 한다.The present invention for achieving the above object is a cylindrical head portion having a hollow therein, the body portion is formed to extend long in the lower side of the head portion formed with a plurality of pleats on the outer peripheral surface, the chain formed integrally in the conical shape at the bottom of the body portion It is characterized by consisting of a base.

본 발명에 의하면, 파형 접지봉이 전력설비에 부설된 후에 대지에 매설되면, 토양과의 접촉면적이 넓어져 접지저항을 대폭 저감시킬 수 있게 된다.According to the present invention, when the corrugated ground rod is placed in the ground after being installed in the electric power equipment, the contact area with the soil is widened, which can greatly reduce the ground resistance.

이하, 본 발명의 바람직한 실시예들을 첨부된 도면을 참조하여 상세히 설명하기로 한다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

본 발명 파형 접지봉의 일 실시예는, 도 2 및 도 3을 포함하여 설명하면, 내부에 전력설비(10)의 리드단자(12)가 수용되도록 원뿔형의 중공(22a)을 갖는 원통형상의 헤드부(22)와, 그 헤드부(22)의 하측으로 길게 연장 형성되고 외주면에 요철형상을 갖도록 다수개의 주름(24b)이 형성된 몸체부(24)와, 그 몸체부(24)의 하단에 쇄기형으로 일체 형성되는 쇄기부(26)로 구성된 것이다.2 and 3, the waveform ground rod according to the present invention includes a cylindrical head portion having a conical hollow 22a such that the lead terminal 12 of the power equipment 10 is accommodated therein. 22) and a body portion 24 which is formed to extend in the lower side of the head portion 22 and has a plurality of corrugations 24b formed to have an uneven shape on the outer circumferential surface thereof, and a wedge shape at the lower end of the body portion 24. It is composed of a wedge portion 26 formed integrally.

더 자세히 설명하면, 몸체부(24)는 내부에 통공(24a)이 형성되고 외주면에요철의 파형 주름(24b)이 형성되며, 철관의 외측면에 전기의 전도성을 향상시키고 부식을 방지하기 위하여 구리 또는 아연등을 박막 도금한 것이다.In more detail, the body portion 24 has a through hole 24a formed therein and a corrugated corrugation 24b of irregularities formed on the outer circumferential surface thereof, and copper to improve electrical conductivity and prevent corrosion on the outer surface of the steel pipe. Or zinc plated thin film.

또한, 몸체부(24)는 대량생산을 위해 철관을 압출 가공하는 것이 바람직하며, 그 내부에는 접지저항과 관계가 없으므로, 대지 토양과의 매설 및 타설시에 휨강도를 고려하여 철심 또는 다른 재질로 충전시키는 것이 바람직하다.In addition, the body portion 24 is preferably extruded steel pipe for mass production, and since it is not related to the ground resistance inside, it is filled with an iron core or other material in consideration of the bending strength when buried and placed with the earth soil It is preferable to make it.

그리고, 쇄기부(26)와 헤드부(22)는 각각 대응되는 형상을 가지며, 즉 쇄기부(26)가 헤드부(22)의 중공(22a)에 수용되도록 원뿔 쇄기형으로 형성되어 있다.The wedge portion 26 and the head portion 22 each have a corresponding shape, that is, the wedge portion 26 is formed in a conical wedge shape so as to be accommodated in the hollow 22a of the head portion 22.

이하, 본 발명의 작용을 다음과 같이 설명하기로 한다.Hereinafter, the operation of the present invention will be described as follows.

전력설비(10)로 전기를 사용할 장소의 대지에 본 발명의 파형 접지봉(20)(20)을 매설, 타설하고, 그 매설된 파형 접지봉(20)과 전력설비(10)를 연결하기 위해 리드단자(12)를 본 발명 접지봉(20)의 헤드부(22)의 내측면에 장착시킨다.To embed and pour the corrugated ground rods 20 and 20 of the present invention on a site of a place where electricity is to be used as the power plant 10, and lead terminals for connecting the embedded corrugated ground rod 20 and the power plant 10 (12) is mounted on the inner surface of the head portion 22 of the ground rod 20 of the present invention.

이때, 접지봉(20)은 대지 주변 토양의 성질에 따라 직렬 또는 병렬에 적합한 방식에 맞추어 설치 사용하게 된다.At this time, the ground rod 20 is used to install in accordance with the method suitable for series or parallel according to the properties of the soil around the earth.

접지봉(20)을 병렬로 연결할 경우, 도 5a에서와 같이, 전력설비(10)로부터 복수개의 리드단자(12)가 하나의 선에 의해 분기되어 각 접지봉(20)의 헤드부(22)에 장착되면서 더 저감된 접지저항을 얻을 수 있게 된다.When the ground rods 20 are connected in parallel, as shown in FIG. 5A, a plurality of lead terminals 12 are branched by one line from the power equipment 10 to be mounted to the head 22 of each ground rod 20. As a result, more reduced ground resistance can be obtained.

한편, 접지봉(20)을 직렬로 연결할 경우, 도 5b에서와 같이, 전력설비(10)로부터 하나의 리드단자(12)가 상부에 위치한 접지봉(20)의 헤드부(22)에 장착되고, 그 하부로 다른 접지봉(20)이 지면에 대해 수직으로 위치하게 설치된다.On the other hand, when the grounding rods 20 are connected in series, as shown in Figure 5b, one lead terminal 12 from the power equipment 10 is mounted to the head portion 22 of the grounding rod 20 located at the top, At the bottom, another ground rod 20 is installed to be perpendicular to the ground.

이때, 상부의 접지봉(20) 쇄기부(26)가 하부의 접지봉(20) 헤드부(22) 중공(22a)에 삽입되어 더 저감된 접지저항을 얻을 수 있게 된다.In this case, the upper ground rod 20 wedge portion 26 is inserted into the lower ground rod 20 head portion 22 hollow 22a to obtain a further reduced ground resistance.

도 4는 본 발명의 다른 실시예를 나타낸 평 단면도로서, 앞서 설명한 일 실시예와 헤드부(22), 몸체부(24), 쇄기부(26)의 구성은 동일하나, 다만 접지봉(20)의 외주면 외측으로만 요철형상의 주름(24b)이 형성되고, 내주면에는 원통형으로 형성된 것이다.4 is a cross-sectional view showing another embodiment of the present invention, the configuration of the head portion 22, the body portion 24, the wedge portion 26 is the same as the embodiment described above, but of the ground rod 20 The uneven corrugation 24b is formed only outside the outer circumferential surface, and is formed in a cylindrical shape on the inner circumferential surface.

이를 간략하게 설명하면, 본 발명의 다른 실시예는 실제로 대지 토양과 접촉되는 외주면 부위에만 복수개의 파형 주름(24b)이 형성되도록 압출 가공된 것이다.Briefly describing this, another embodiment of the present invention is extruded so that a plurality of corrugated corrugations 24b are formed only on the outer circumferential surface portion in contact with the soil.

이 구성에 따른 작용은 앞의 일 실시예와 동일하므로, 중복 설명은 생략하기로 한다.Since the operation according to this configuration is the same as the previous embodiment, duplicate description will be omitted.

상기한 바와 같이 설명한 본 발명의 실시예들은 대지 토양에 매설, 타설되는 접지봉의 접촉면적을 극대화시켜 접지저항을 저감시킬 수 있도록 한 기술적 사상을 갖는 것으로, 본 기술분야에서 통상의 지식을 가진 자라면 그 기술적 사상의 범위내에서 얼마든지 변형 실시가 가능할 것이다.Embodiments of the present invention as described above have the technical idea to reduce the ground resistance by maximizing the contact area of the ground rod to be embedded and placed in the ground soil, if one of ordinary skill in the art Modifications can be made within the scope of the technical idea.

예컨대, 몸체부(24)의 외주면에 돌출 형성된 것이 파형 주름(24b)이 아니라, 외측으로 돌출 형성된 사다리꼴형태등의 다각형 돌출부로 형성할 수도 있을 것이다.For example, the protrusion formed on the outer circumferential surface of the body portion 24 may be formed as a polygonal protrusion such as a trapezoidal shape that protrudes outward, rather than the corrugated wrinkle 24b.

이상과 같이 설명한 본 발명은 대지에 매설되는 접지봉의 토양 접촉 면적을 극대화시킬 수 있도록 그 구조가 개량된 것인바, 이에 따르면 본 발명은 전력설비로부터 전달되는 전압과 전류에 대한 접지저항을 저감시켜 땅속으로 전류가 용이하게 흘려 보낼 수 있는 효과를 갖는다.The present invention as described above is improved in the structure to maximize the soil contact area of the ground rod embedded in the ground, according to the present invention is to reduce the ground resistance to the voltage and current transmitted from the power equipment in the ground This has the effect that the current can easily flow.

Claims (3)

내부에 중공(22a)을 갖는 원통형의 헤드부(22)와,A cylindrical head portion 22 having a hollow 22a therein, 상기 헤드부(22)의 하측에 길게 연장 형성되며 외주면에 다수개의 주름(24b)이 형성된 몸체부(24)와,A body portion 24 extending in a lower side of the head portion 22 and having a plurality of corrugations 24b formed on an outer circumferential surface thereof; 상기 몸체부(24)의 하단에 원추형으로 일체 형성된 쇄기부(26)로 구성된 것을 특징으로 하는 파형 접지봉.Corrugated ground rod, characterized in that consisting of a wedge portion (26) integrally formed in a conical shape at the bottom of the body portion (24). 제 1항에 있어서, 상기 몸체부(24)는 내부에 통공(24a)이 형성되고 외주면 단면이 요철형상의 파형을 갖도록 형성된 것을 특징으로 하는 파형 접지봉.The corrugated ground rod according to claim 1, wherein the body portion (24) is formed such that a through hole (24a) is formed therein and the outer circumferential surface has a corrugated wave shape. 제 1항 또는 제 2항에 있어서, 상기 헤드부(22)와 몸체부(24) 및 쇄기부(26)는 철관의 표면에 구리 또는 아연으로 박막 도금된 것을 특징으로 하는 파형 접지봉.The corrugated ground rod according to claim 1 or 2, wherein the head part (22), the body part (24) and the wedge part (26) are thin plated with copper or zinc on the surface of the iron pipe.
KR1020010062146A 2001-10-09 2001-10-09 undulate earth-rod KR20030030283A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010027171A2 (en) * 2008-09-08 2010-03-11 더큰 Grounding module comprising an open cell metal foam and carbon
WO2010027154A2 (en) * 2008-09-08 2010-03-11 더큰 Grounding module made of an open cell metal foam
US7732707B2 (en) 2005-10-18 2010-06-08 Korea Electric Power Corporation Ground rod and connection sleeve filled with compound of electric conduction
KR20120081313A (en) * 2011-01-11 2012-07-19 한국전력공사 The ground rod installation method for electric pole
CN105870650A (en) * 2015-11-18 2016-08-17 国家电网公司 Method for reducing grounding resistance by ground anchor for reducing grounding resistance and ground anchor for reducing grounding resistance

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54125478U (en) * 1978-02-22 1979-09-01
JPS564172U (en) * 1980-06-13 1981-01-14
JPS5641470U (en) * 1979-09-05 1981-04-16
JPS5729067U (en) * 1980-07-24 1982-02-16
KR20000001481U (en) * 1998-06-22 2000-01-25 박종태 Lightning strike
KR200206713Y1 (en) * 2000-05-26 2000-12-15 주식회사삼영테크노 The earthing pipe for surge-discharging
KR200230702Y1 (en) * 2001-02-06 2001-07-19 한국엑스아이티주식회사 Grounding apparatus for reduction of grounding resistance and impedance

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54125478U (en) * 1978-02-22 1979-09-01
JPS5641470U (en) * 1979-09-05 1981-04-16
JPS564172U (en) * 1980-06-13 1981-01-14
JPS5729067U (en) * 1980-07-24 1982-02-16
KR20000001481U (en) * 1998-06-22 2000-01-25 박종태 Lightning strike
KR200206713Y1 (en) * 2000-05-26 2000-12-15 주식회사삼영테크노 The earthing pipe for surge-discharging
KR200230702Y1 (en) * 2001-02-06 2001-07-19 한국엑스아이티주식회사 Grounding apparatus for reduction of grounding resistance and impedance

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7732707B2 (en) 2005-10-18 2010-06-08 Korea Electric Power Corporation Ground rod and connection sleeve filled with compound of electric conduction
WO2010027171A2 (en) * 2008-09-08 2010-03-11 더큰 Grounding module comprising an open cell metal foam and carbon
WO2010027154A2 (en) * 2008-09-08 2010-03-11 더큰 Grounding module made of an open cell metal foam
WO2010027171A3 (en) * 2008-09-08 2010-06-24 더큰 Grounding module comprising an open cell metal foam and carbon
WO2010027154A3 (en) * 2008-09-08 2010-07-01 더큰 Grounding module made of an open cell metal foam
KR20120081313A (en) * 2011-01-11 2012-07-19 한국전력공사 The ground rod installation method for electric pole
CN105870650A (en) * 2015-11-18 2016-08-17 国家电网公司 Method for reducing grounding resistance by ground anchor for reducing grounding resistance and ground anchor for reducing grounding resistance

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