KR100544695B1 - Eearth apparatus for electric pole - Google Patents

Eearth apparatus for electric pole Download PDF

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Publication number
KR100544695B1
KR100544695B1 KR1020030018151A KR20030018151A KR100544695B1 KR 100544695 B1 KR100544695 B1 KR 100544695B1 KR 1020030018151 A KR1020030018151 A KR 1020030018151A KR 20030018151 A KR20030018151 A KR 20030018151A KR 100544695 B1 KR100544695 B1 KR 100544695B1
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South Korea
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ground
electrode
pole
fastening
reducing material
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KR1020030018151A
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Korean (ko)
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KR20040083620A (en
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김규삼
홍홍희
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주식회사 티지오
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D3/00—Apparatus or devices for controlling flow of liquids under gravity from storage containers for dispensing purposes
    • B67D3/0029—Apparatus or devices for controlling flow of liquids under gravity from storage containers for dispensing purposes provided with holders for bottles or similar containers
    • B67D3/0032—Apparatus or devices for controlling flow of liquids under gravity from storage containers for dispensing purposes provided with holders for bottles or similar containers the bottle or container being held upside down and provided with a closure, e.g. a cap, adapted to cooperate with a feed tube
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D3/00—Apparatus or devices for controlling flow of liquids under gravity from storage containers for dispensing purposes
    • B67D3/0038—Apparatus or devices for controlling flow of liquids under gravity from storage containers for dispensing purposes the liquid being stored in an intermediate container prior to dispensing

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing Of Electrical Connectors (AREA)

Abstract

본 발명은 접지저항 저감재와 대지간의 접촉면적을 증가시킴으로써 경년변화 없이 원하는 접지 저항값을 얻어 전극의 전식이나 부식을 방지할 수 있도록 하는 전주용 접지전극을 제공하는데 그 목적이 있다.SUMMARY OF THE INVENTION An object of the present invention is to provide a pole electrode for increasing the contact area between the earth resistance reducing material and the earth, to obtain a desired earth resistance value without age change and to prevent corrosion or corrosion of the electrode.

본 발명은 전주에 이상전류를 대지로 방전시키기 위해 가공지선과 접지선이 전기적으로 연결되어 대지에 매립되는 접지전극에 있어서, 일정한 폭을 갖는 판체를 원통체 형상으로 성형한 전극본체를 갖고, 상기 전극본체의 양측 단부를 절곡하여 체결부를 형성하며, 상기 체결부에 체결공을 천공한 접지전극을 전주의 하단부 외주연에 본체를 감싼 후 체결부를 보울트 결합하는 것에 의해 접지전극을 전주에 체결하고, 전주를 심착하기 위한 굴착공에 전주를 심착시킨 후 그 주변에 접지저항 저감재를 매립한 것을 특징으로 한다.The present invention provides a grounding electrode in which a processing ground line and a ground line are electrically connected to a ground in order to discharge an abnormal current to a ground, and includes an electrode body in which a plate body having a predetermined width is formed into a cylindrical shape. The ends of the main body are bent to form a fastening part, and the ground electrode is formed by wrapping the main body on the outer periphery of the lower end of the pole in the fastening part and then bolting the fastening part to fasten the ground electrode to the electric pole. Characterized in that the ground resistance reducing material is embedded in the periphery after the electric pole in the excavation hole for deepening the.

전주, 접지전극, 접지저항 저감재, 가공지선, Electric pole, ground electrode, ground resistance reducing material, processing ground wire,

Description

전주용 접지장치 {Eearth apparatus for electric pole} Electric pole grounding equipment {Eearth apparatus for electric pole}             

도 1은 종래 접지전극의 설치예를 보인 단면도,1 is a cross-sectional view showing an installation example of a conventional ground electrode;

도 2는 본 발명의 접지전극을 설명하기 위한 사시도,2 is a perspective view for explaining a ground electrode of the present invention;

도 3은 본 발명에 따른 접지전극의 설치예를 보인 단면도.3 is a cross-sectional view showing an installation example of a ground electrode according to the present invention.

*도면의 주요부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *

20;접지전극 21;전극본체20; ground electrode 21; electrode body

22a,22b;체결편 23;체결공22a, 22b; Fastener 23; Fastener

24;보울트 25;접지저항 저감재24; bolt 25; grounding resistance reducing material

본 발명은 전주용 접지전극에 관한 것으로서, 상세하게는 전주의 하부 직경에 대응하는 직경을 갖는 전극본체의 양단부를 볼울트 결합하여 체결하고, 그 주변에 접저저항 저감재를 매립하여 접지전극의 전식이나 부식을 방지할 수 있도록 하는 전주용 접지장치에 관한 것이다.The present invention relates to a ground electrode for electric poles, and in detail, bolt-coupling and fastening both ends of an electrode body having a diameter corresponding to the lower diameter of the electric pole, and embedding a grounding resistance reducing material in the periphery thereof. The present invention relates to a pole grounding device which can prevent corrosion.

일반적으로 변전소에서 여러 단계의 변압과정을 거친 전력을 가정 또는 건물 등의 수용가로 공급하기 위해서는 지상에 일정 간격으로 설치되는 전주 등에 의해 지지되는 가공지선을 이용하게 된다. 이러한 가공지선은 이상전류(뇌, 지락, 서지 등)로부터 배전설비를 보호함과 아울러 누전으로 인한 각종 전기재해를 방지하기 위하여 접지전극이 연결된다.In general, in order to supply electric power that has undergone several stages of transformation in a substation to consumers such as homes or buildings, overhead lines supported by electric poles installed at regular intervals on the ground are used. The ground line is connected to the ground electrode to protect the power distribution equipment from abnormal current (brain, ground, surge, etc.) and to prevent various electrical disasters caused by a short circuit.

이러한 낙뢰는 엄청난 파괴력을 지니고 있기 때문에 각종 시설물을 시공할 경우 반드시 접지시설을 갖추어 낙뢰를 받았을 때 전류를 신속하게 지중으로 방전시킴으로서 낙뢰로 인한 피해를 방지하도록 하고 있다.These lightning strikes have tremendous destructive power, so if you install various facilities, be sure to equip the grounding facility to discharge the current quickly into the ground when lightning strikes to prevent damage caused by lightning strikes.

종래 접지전극은 도 1과 같이 전주에 접지전극을 설치하기 위해 전주(15)의 상부와 하부에 각각 인입공(12a)과 인출공(12b)이 형성되며, 이 인입공(12a)과 인출공(12b)을 통해 가공지선(10)과 접지동봉(13)을 접지선(11a)(11b)을 이용하여 전기적으로 연결하고, 상기 접지동봉(13)을 대지에 매설함으로써 이상전류를 대지로 신속하게 방전시키도록 하고 있다.In the conventional ground electrode, an inlet hole 12a and an outlet hole 12b are formed in the upper and lower portions of the pole 15, respectively, to install the ground electrode in the pole, as shown in FIG. Through 12b, the processing ground wire 10 and the ground rod 13 are electrically connected to each other using the ground wires 11a and 11b, and the ground rod 13 is buried in the ground, thereby quickly causing an abnormal current to the ground. To discharge.

이러한 전주의 접지시설은 토양의 종류 및 성분, 지질 구조, 수분의 함유상태 그리고 계절의 온도변화 등에 의해 요구되는 대지 고유저항을 고려하지 않고 접지동봉 1개만을 매설하고 있기 때문에 전식이나 부식 등으로 인해 접지 저항값을 얻지 못하는 등 접지동봉의 역할을 할 수 없는 경우가 발생하게 되고, 이럴 경우 전주를 교체하거나 또는 콘크리트나 아스팔트를 개복하여 굴착한 후 접지동봉을 교체해야 하는 불편함과 시공에 따른 비용이 소요되는 문제가 있다. The grounding facility in Jeonju has only one grounding rod buried without considering the earth resistivity required by soil type and composition, geological structure, moisture content, and seasonal temperature changes. There is a case that it is impossible to play the role of the grounding rod, such as failing to obtain the grounding resistance value.In this case, the inconvenience of having to replace the pole or replacing the grounding rod after excavation by renovating concrete or asphalt, and the cost of construction There is a problem that this takes.

본 발명은 상기한 종래 기술의 문제점을 해결하기 위하여 안출된 것으로서, 상세하게는 접지저항 저감재와 대지간의 접촉면적을 증가시킴으로써 경년변화 없이 원하는 접지 저항값을 얻어 전극의 전식이나 부식을 방지할 수 있도록 하는 전주용 접지장치를 제공하는데 그 목적이 있다.The present invention has been made to solve the above problems of the prior art, and in detail, by increasing the contact area between the ground resistance reducing material and the ground, it is possible to obtain a desired ground resistance value without age change to prevent electrodeposition or corrosion. The purpose is to provide a pole earth grounding device.

본 발명에 따른 전주용 접지전극은 일정한 폭을 갖는 전도성이 우수한 판체를 원통체 형상으로 성형한 본체를 갖고, 상기 본체의 양측 단부를 절곡하여 체결부를 형성하며, 상기 체결부에 체결공을 천공한 접지전극을 전주의 하단부 외주연에 본체를 감싼 후 체결부를 보울트 결합하는 것에 의해 접지전극을 전주에 체결하고, 전주를 심착하기 위한 굴착공에 전주를 심착시킨 후 그 주변에 접지저항 저감재를 매립하여 접지 저항값을 저하되게 함으로써 접지전극의 전식이나 부식을 방지하기 위한 목적을 달성할 수 있다.Electrode grounding electrode according to the present invention has a main body formed of a cylindrical body having excellent conductivity having a predetermined width in the shape of a cylindrical body, bent both ends of the main body to form a fastening portion, the fastening hole in the fastening portion Wrap the main body on the outer periphery of the lower end of the pole, and then bolt the joint to the pole to connect the ground electrode to the pole, and install the pole in the excavation hole for deepening the pole. By lowering the ground resistance value, it is possible to achieve the purpose of preventing corrosion or corrosion of the ground electrode.

상기 접지저항 저감재는 분말상태이거나 또는 중앙에 접지전극이 삽입되게 동형의 삽입공이 형성된 고형체이어도 좋다.
The ground resistance reducing material may be in a powder state or a solid body in which an insertion hole of the same type is formed so that a ground electrode is inserted in the center.

이하, 본 발명의 바람직한 실시예를 첨부된 도면을 참조하여 상세하게 설명한다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 2는 본 발명에 따른 접지전극을 보인 사시도이고, 도 3은 접지전극을 체결한 상태에서 전주를 매설한 상태를 도시한 단면도이다. 이하, 종래 기술과 동일 한 부분에 대해서 동일부호를 첨부하며, 상세한 설명은 생략한다.2 is a perspective view illustrating a ground electrode according to the present invention, and FIG. 3 is a cross-sectional view illustrating a state in which electric poles are embedded in a state in which a ground electrode is fastened. Hereinafter, the same reference numerals are attached to the same parts as in the prior art, and detailed description thereof will be omitted.

도 2를 참조하면, 전체를 부호 20으로 표시한 본 발명의 접지전극은 판체 형상을 원형으로 성형한 전극본체(21)를 갖고, 상기 전극본체(21)의 양단부를 각각 절곡하여 체결편(22a)(22b)을 형성한 후 그 체결편(22a)(22b)에 두께 방향으로 다수의 체결공(23)을 대응되게 형성한다.Referring to FIG. 2, the ground electrode of the present invention, denoted by reference numeral 20 in its entirety, has an electrode body 21 formed in a circular plate shape, and each end of the electrode body 21 is bent to fasten the piece 22a. ) And then forming a plurality of fastening holes 23 corresponding to the fastening pieces 22a and 22b in the thickness direction.

상기 접지전극(20)은 일정한 폭을 갖는 판체를 전주의 하부 직경과 체결편(22)의 길이를 고려하여 절단하고, 절단된 판체를 지름이 같은 삼각형으로 배열된 3개의 로울러 사이에 통과시켜 원형태로 성형하는 롤성형에 의해 전극본체(21)를 성형한다. 이후 전극본체(21)의 양단부를 외향으로 절곡하여 체결편(22)을 형성한 후 그 체결편(22)의 두께방향으로 펀칭이나 프레싱에 의해 체결공(23)을 형성하게 되며, 이와 같이 형성된 접지전극(20)을 전주(15)의 하단부에 포위시켜 체결공(23)을 통해 보울트(24) 체결함으로써 전주에 고정시킨다.The ground electrode 20 cuts a plate having a predetermined width in consideration of the lower diameter of the pole and the length of the fastening piece 22, and passes the cut plate between three rollers arranged in a triangle having the same diameter. The electrode body 21 is formed by roll molding in a shape. Thereafter, both ends of the electrode body 21 are bent outwardly to form the fastening piece 22, and then the fastening hole 23 is formed by punching or pressing in the thickness direction of the fastening piece 22. The ground electrode 20 is enclosed at the lower end of the pole 15 and fastened to the pole by fastening the bolt 24 through the fastening hole 23.

여기서, 상기 전극본체(21)은 전주의 외형과 같이 하방으로 갈수록 그 직경이 넓어지게 테이퍼져 있기 때문에 그와 동형의 테이퍼진 원통형으로 성형해야 함은 물론이다.Here, since the electrode body 21 is tapered so that its diameter becomes wider toward the lower side like the outer shape of the pole, it is a matter of course that the electrode body 21 has to be shaped into a tapered cylindrical shape.

상기 접지전극(20)은 전주의 직경을 고려할 필요가 있고, 통상적으로 전주의 길이가 10m, 12m, 14m, 16m로 이루어지고, 그 전주의 길이에 따라 하단부의 직경에 차이가 있다. 따라서 본 발명에 따른 접지전극(20)은 전주의 하단부의 외주연의 둘레길이와 체결편(22a)(22b)의 길이를 고려하여 판체를 절단하고, 절단된 판체를 롤성형시 그 내경을 전주의 직경과 대응되게 성형할 필요가 있다.The ground electrode 20 needs to consider the diameter of the pole, and typically the length of the pole is 10m, 12m, 14m, 16m, the diameter of the lower end is different depending on the length of the pole. Therefore, the ground electrode 20 according to the present invention cuts the plate in consideration of the circumferential length of the outer periphery of the lower end of the pole and the length of the fastening pieces 22a, 22b, and the inner diameter of the cut plate when rolling It needs to be molded to correspond to the diameter of.

또한, 상기 접지전극(20)은 대지에 함유된 수분 등에 의해 전도성 및 부식을 방지하기 위한 내식성이 우수한 스테인레스계 금속재나 또는 구리를 함유한 금속재를 사용하는 것이 바람직하다.In addition, the ground electrode 20 is preferably made of a stainless steel metal or a copper-containing metal material excellent in corrosion resistance to prevent conductivity and corrosion by moisture contained in the ground.

도 3은 본 발명에 따른 전주의 설치예를 보인 것으로, 도면을 참조하면, 본 발명은 접지전극(20)을 전주의 하단부에 체결한 상태에서 접지선(11a)을 연결 보울트(24)에 전기적으로 연결한 후 굴착공에 전주를 심착시키고, 굴착공과 전주 사이의 공간에 접지저항 저감재(25)를 매립한 후 굴착토를 메운다. 그리고 전주의 상부에 형성된 인입홀(12a)을 통해 인출된 접지선(11a)을 가공지선(10)과 전기적으로 연결한다. 3 illustrates an installation example of a pole according to the present invention. Referring to the drawings, the present invention electrically connects the ground wire 11a to the connection bolt 24 in a state in which the ground electrode 20 is fastened to the lower end of the pole. After connecting the core pole in the excavation hole, the earth resistance reduction material 25 is buried in the space between the excavation hole and the pole and then fill the excavation soil. Then, the ground line 11a drawn out through the inlet hole 12a formed in the upper portion of the pole is electrically connected to the processing branch line 10.

상기 접지저항 저감재(25)는 시중에 판매되는 접지저항 저감재라면 모두 사용 가능하나, 본 발명의 특성상 수분을 흡착, 배출하여 일정한 접지 저항치를 유지할 수 있도록 함과 동시에 접지 저항치의 경년변화가 적어지도록 카본을 분말형태로 사용하는 것이 바람직하고, 이 분말형태의 접지저항 저감재(25)는 토양에 함유된 수분에 의해 시간이 경과되면 고형화됨은 자명할 것이다.The ground resistance reducing material 25 may be used as long as it is a commercially available ground resistance reducing material. However, in the characteristics of the present invention, it is possible to maintain and maintain a constant ground resistance by adsorbing and discharging moisture, and at the same time, there is less secular change in the ground resistance. It is preferable to use carbon in powder form, and it will be apparent that the ground resistance reducing material 25 in powder form is solidified over time by moisture contained in the soil.

또한, 본 발명에 따른 접지저항 저감재(25)는 상기 접지전극(20)이 삽입되게 중앙에 접지전극(20)의 외형과 동일한 형상의 삽입공을 갖도록 분말상태의 저감재를 물과 혼합한 후 형틀에서 경화시킨 고형체로 형성하여 시공시 전주에 체결된 상기 접지전극(20)에 상기 고형체의 접지저항 저감재(25)를 끼움결합한 상태에서 굴착공에 전주를 심착한다.In addition, the ground resistance reducing material 25 according to the present invention is mixed with a water reducing material in a powder state so that the ground electrode 20 has an insertion hole having the same shape as the outer shape of the ground electrode 20 to be inserted into the center. After the formation of a solid cured in the mold and the ground electrode 20 is fastened to the ground pole when the construction of the ground resistance reducing material 25 of the solid body in the state coupled to the drill hole in the drill hole.

또한, 본 발명에 따른 접지저항 저감재(25)는 분말상태의 저감재와 물과 바 인더를 혼합한 슬러지 상태로 또는 저감재 분말과 바인더를 혼합한 슬러지 상태로 접지전극(20)의 외주연에 도포하여 경화시킬 수 있다. 이때 상기 저감재(25)는 접지전극(20) 전면적에 도포하거나 또는 체결편(22a)(22b)을 제외한 외주면에 일정한 두께로 도포할 수 있다.In addition, the ground resistance reducing material 25 according to the present invention is the outer periphery of the ground electrode 20 in the sludge state in which the powder reducing agent and water and binder is mixed or in the sludge state in which the reducing agent powder and binder are mixed. It can be apply | coated to and hardened. In this case, the reducing material 25 may be applied to the entire surface of the ground electrode 20 or may be applied to a predetermined thickness on the outer circumferential surface except for the fastening pieces 22a and 22b.

상기 접지저항 저감재(25)는 접지전극(20)과 대기간의 접촉면적을 넓힘으로써 접지 저항치를 낮추고, 전식 및 부식을 방지하기 위한 것이며, 이러한 접지저항 저감재(25)는 토양의 종류 및 성분, 지질 구조, 수분의 함유상태 그리고 계절의 온도변화 등에 의해 요구되는 대지 고유저항을 고려하여 적당한 량을 사용하는 것이 좋다.The grounding resistance reducing material 25 is to lower the grounding resistance by increasing the contact area between the grounding electrode 20 and the atmosphere, and to prevent corrosion and corrosion, and the grounding resistance reducing material 25 is a kind and composition of soil. It is recommended to use an appropriate amount in consideration of the earth resistivity required by the structure, geological structure, moisture content, and seasonal temperature changes.

이와 같이 접지전극(20)이 체결된 전주에 낙뢰, 유도뢰, 지락 및 변전소나 배전선의 차단기의 동작으로 생기는 서지성 이상전류가 발생하면 접지선(11b)과 연결된 접지전극(20)을 통해 신속하게 대지로 방전시켜 대지전위상승을 억제하여 전력설비에 미치는 영향을 감소시키게 된다.As such, when a surge abnormality generated by lightning, induction lightning, ground fault, and operation of a substation or a breaker of a distribution line occurs on the pole where the ground electrode 20 is fastened, the ground electrode 20 is quickly connected to the ground electrode 20 connected to the ground line 11b. By discharging to the ground, the rise of the ground potential is suppressed to reduce the effect on the power equipment.

이상에서 설명한 바와 같이 본 발명은 전주 하단부에 접지전극을 체결하고 그 주위에 접지저항 저감재를 매립함으로써 접지저항을 저감시킬 수 있고, 또한 간편한 시공으로 경제적 접지를 구성함과 동시에 부식 및 전식방지에 효과가 높아 종래 부식이나 전식에 다른 재시공을 생략할 수 있고, 그 결과 유지보수 비용을 절감할 수 있다.As described above, the present invention can reduce the ground resistance by fastening the grounding electrode at the lower end of the pole and embedding the ground resistance reducing material therein. It is highly effective, so that it is possible to omit other reconstructions to conventional corrosion or corrosion, and as a result, maintenance costs can be reduced.

Claims (4)

삭제delete 삭제delete 전주에 이상전류를 대지로 방전시키기 위해 가공지선과 접지선이 전기적으로 연결되어 대지에 매립되는 접지장치에 있어서,In the grounding device in which the processing ground line and the ground line are electrically connected to the ground to discharge the abnormal current to the earth, 일정한 폭을 갖는 판체를 원통체 형상으로 성형한 전극본체를 갖고, 상기 전극본체의 양측 단부를 각각 절곡하여 두께방향으로 다수의 체결공이 형성된 체결편을 구비한 접지전극을 전주의 하단부에 상기 체결공을 통해 보울트 체결하며, 상기 접지전극과 굴착공 사이에 그 중앙에 상기 접지전극이 삽입되게 동형의 삽입공을 갖는 고형체인 접지저항 저감재를 매립하는 것을 특징으로 하는 전주용 접지장치.The fastening hole at the lower end of the pole is a ground electrode having an electrode body in which a plate body having a predetermined width is formed into a cylindrical shape, and having a fastening piece having a plurality of fastening holes formed in a thickness direction by bending both ends of the electrode body, respectively. And a bolt fastening through and filling a ground resistance reducing material which is a solid body having an insertion hole of the same type so that the ground electrode is inserted between the ground electrode and the excavation hole. 전주에 이상전류를 대지로 방전시키기 위해 가공지선과 접지선이 전기적으로 연결되어 대지에 매립되는 접지장치에 있어서,In the grounding device in which the processing ground line and the ground line are electrically connected to the ground to discharge the abnormal current to the earth, 일정한 폭을 갖는 판체를 원통체 형상으로 성형하고 표면에 접지저항 저감개가 도포된 전극본체를 갖고, 상기 전극본체의 양측 단부를 각각 절곡하여 두께방향으로 다수의 체결공이 형성된 체결편을 구비한 접지전극을 전주의 하단부에 상기 체결공을 통해 보울트 체결한 것을 특징으로 하는 전주용 접지장치.A ground electrode having a fastening member formed into a cylindrical body having a predetermined width and having an electrode body coated with a grounding resistance reduction member on the surface thereof, and having a plurality of fastening holes formed in the thickness direction by bending both ends of the electrode body, respectively. The pole pole grounding device, characterized in that the bolt through the fastening hole to the lower end of the pole.
KR1020030018151A 2003-03-24 2003-03-24 Eearth apparatus for electric pole KR100544695B1 (en)

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KR100777688B1 (en) * 2007-07-30 2007-11-19 대원전기 주식회사 Method for contructing arc-type utility pole underbracing for overhead line using extendable excavating unit for auger crane

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