KR20190133117A - Grounding Work Method Using Bare Wire - Google Patents

Grounding Work Method Using Bare Wire Download PDF

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Publication number
KR20190133117A
KR20190133117A KR1020190143932A KR20190143932A KR20190133117A KR 20190133117 A KR20190133117 A KR 20190133117A KR 1020190143932 A KR1020190143932 A KR 1020190143932A KR 20190143932 A KR20190143932 A KR 20190143932A KR 20190133117 A KR20190133117 A KR 20190133117A
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ground
pole
ground wire
wire
grounding
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KR1020190143932A
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Korean (ko)
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서정연
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주식회사 성진
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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
    • H02G13/00—Installations of lightning conductors; Fastening thereof to supporting structure
    • H02G13/40—Connection to earth
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
    • 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

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Suspension Of Electric Lines Or Cables (AREA)

Abstract

The present invention relates to a method used for grounding work in the construction a distribution line electric pole. Electric facilities are grounded to suppress an increase in the potential of the earth due to a failure in a distribution line in an integrity state, reduce and prevent an abnormal voltage due to lightening surge or the like, or operate a protective relay in case of a ground fault. Grounds are provided to connect, by ground wires, electrical facilities to be protected by burying ground electrodes through embedding in the ground. At this time, a reference value of ground resistance varies according to facilities. Recently, Korean electric power corporation (KEPCO) provides ground facilities based on a ground resistance of 300 ohm for each electric pole to maintain 10 ohm per ground resistance value (1 km) in the case of grounds for distribution line protection. Providing grounds on each electric pole causes a considerable increase in the cost of material and labor. Thus, the present invention provides a method capable of reducing the cost of grounding work by stripping ground wires by a predetermined length and burying the same as a ground electrode. The method comprises the steps of: a ground wire sheath separating step (S100); a ground wire insertion step (S200); an electric pole erecting step (S300); and a ground wire installation step (S400).

Description

나전선 이용 접지공법{Grounding Work Method Using Bare Wire}Grounding Work Method Using Bare Wire}

배전선로 전주공사에서 접지 시공에 이용하는 공법에 관한 것이다.It relates to the construction method used for grounding construction in electric distribution line electric pole construction.

배전선로에서 선로의 고장으로 인한 건전상의 대지 전위 상승 억제 및 뇌 서지 등으로 인한 이상 전압의 경감, 발생 방지 또는 지락 고장 시 보호계전기의 동작 등을 위하여 전기설비를 접지한다.Ground the electrical equipment in the distribution line to suppress the rise of the earth potential on the ground caused by the failure of the line and to reduce the abnormal voltage caused by the brain surge, to prevent the occurrence or to operate the protective relay in case of a ground fault.

접지는 땅속에 동봉 등 접지극을 묻고 보호하고자 하는 전기설비를 접지선으로 연결하여 시설하며, 이때 접지 저항의 기준값은 대상 설비에 따라 다양하다.Grounding is installed by burying a ground electrode such as an enclosed rod in the ground and connecting electrical equipment to be protected with a grounding wire. At this time, the reference value of grounding resistance varies according to the target equipment.

요즈음 한전은 배전선로 보호용 접지의 경우 접지 저항값 1km당 10옴을 유지하기 위하여 매 전주 접지저항 300옴을 기준하여 접지설비를 시설한다. Nowadays, KEPCO is equipped with grounding facilities based on 300 ohms of electric pole ground resistance in order to maintain 10 ohms per kilometer of ground resistance value in case of protective ground for distribution line.

매 전주에 접지를 시설하는 것은 재료비 및 인건비에 적지않은 비용 증가를 초래하는 문제점이 있다.There is a problem in that grounding every week has a significant increase in material and labor costs.

배전선로 전주공사에서 선로 보호용 접지 시공의 비용이 증가하는 문제점을 해결하기 위하여,In order to solve the problem of increasing the cost of the grounding protection for line protection in distribution line electric pole construction,

본 발명은 땅에 구덩이를 파서 전주를 세우고 접지설비를 설치할 때 동봉 등 접지극을 생략하고, 접지선의 일정 길이를 벗겨서 접지극으로 매설함으로써 접지시공의 비용을 감소시킬 수 있는 공법을 제공하고자 한다.The present invention is to provide a construction method that can reduce the cost of grounding construction by eliminating the grounding pole, such as the enclosed bar when the pit to dig a pit in the ground and install the grounding equipment, stripping a certain length of the grounding wire and embedded in the grounding pole.

상기의 문제점을 해결하기 위하여 본 발명인 나전선 이용 접지공법은,In order to solve the above problems, the present inventors using a bare wire grounding method,

사전에 땅에 전주 구덩이(2)를 파고 전주(1)를 준비한 후,After digging the pole pit (2) in the ground and preparing the pole (1),

접지선(10)의 필요 길이를 절단하고, 접지극으로 이용할 일정 길이의 피복(11)을 벗기는 접지선 피복분리 단계(S100)와;A ground wire stripping step (S100) of cutting the required length of the ground wire 10 and removing the coating 11 having a predetermined length to be used as the ground electrode;

나전선(12) 측이 전주의 밑으로 향하도록 접지선(10)을 전주(1)의 접지선 입출구를 통하여 공심에 끼우는 접지선 전주삽입 단계(S200)와;A ground wire pole insertion step (S200) of inserting the ground wire 10 into the air core through the ground wire inlet and outlet of the pole pole 1 so that the side of the bare wire 12 faces the pole pole;

크레인을 이용하여 접지선(10)이 삽입된 전주(1)를 들어올려서 구덩이(2)에 세우는 전주기립 단계(S300)와;A main cycle step (S300) of lifting up the electric pole 1 into which the ground wire 10 is inserted using a crane and standing in the pit 2;

긴 봉으로 나전선(12)을 전주(1)와 떨어뜨리며 흙을 되메워서 전주(1) 및 접지선(10)을 설치하는 접지선 설치 단계(S400)를 포함하여 구성한다. It consists of a ground wire installation step (S400) to drop the bare wire 12 with the electric pole (1) with a long rod and backfill the soil to install the electric pole (1) and ground wire (10).

이상과 같이 본 발명에 따른 나전선 이용 접지공법은,As described above, the bare wire grounding method according to the present invention,

배전선로 보호용 접지의 경우 접지저항의 기준 값이 300옴으로 크게 낮아져서 별도의 접지극을 이용하지 않고 접지선의 피복을 벗겨서 접지극으로 이용할 수 있어 접지시공의 비용을 경감할 수 있는 효과가 발생하는 것이다.In the case of the ground for the protection of the distribution line, the reference value of the ground resistance is greatly lowered to 300 ohms, so that the cost of the grounding construction can be reduced by using the grounding wire as a grounding electrode without using a separate grounding electrode.

도 1은 본 발명의 실시 예에 따른 접지선의 구성을 나타내는 도면.
도 2는 본 발명의 실시 예에 따른 접지선의 설치를 나타내는 도면.
도 3은 본 발명의 실시 예에 따른 나전선 이용 접지공법의 단계를 나타내는 도면.1 is a view showing the configuration of a ground line according to an embodiment of the present invention.
2 is a view showing the installation of the ground wire according to an embodiment of the present invention.
3 is a diagram showing the steps of the grounding method using a bare wire according to an embodiment of the present invention.

본 발명에 의한 나전선 이용 접지공법에 대하여 실시 예를 통해 상세히 설명한다.The grounding method using a bare wire according to the present invention will be described in detail through an embodiment.

도 1은 본 발명의 실시 예에 따른 접지선의 구성을 나타내는 도면이다.1 is a view showing the configuration of a ground line according to an embodiment of the present invention.

도 2는 본 발명의 실시 예에 따른 접지선의 설치를 나타내는 도면이다.2 is a view showing the installation of the grounding wire according to an embodiment of the present invention.

도 3은 본 발명의 실시 예에 따른 나전선 이용 접지공법의 단계를 나타내는 도면이다.3 is a view showing the steps of the grounding method using a bare wire according to an embodiment of the present invention.

도 1에서 도 3를 참조하여 나전선 이용 접지공법을 설명하면,Referring to Figure 1 to Figure 3 using the bare wire grounding method,

사전에 땅에 전주 구덩이(2)를 파고 전주(1)를 준비한 후,After digging the pole pit (2) in the ground and preparing the pole (1),

접지선(10)의 필요 길이를 절단하고, 접지극으로 이용할 일정 길이의 피복(11)을 벗기는 접지선 피복분리 단계(S100)와;A ground wire stripping step (S100) of cutting the required length of the ground wire 10 and removing the coating 11 having a predetermined length to be used as the ground electrode;

여기서, 접지저항을 낮추고자 할 경우 접지선(10)의 피복(11)을 더 길게 벗겨서 나전선(12)의 길을 늘릴 수 있으며, 연선의 나전선(12)을 풀어서 설치하면 대지와의 접촉면을 높일 수 있어 접지저항 저감에 효과적이다.Here, in the case of lowering the ground resistance, the sheath 11 of the ground wire 10 may be peeled off longer to extend the length of the bare wire 12, and when the loose wire 12 of the stranded wire is released and installed, the contact surface with the earth may be removed. It can be increased, so it is effective to reduce ground resistance.

나전선(12) 측이 전주의 밑으로 향하도록 접지선(10)을 전주(1)의 접지선 입출구를 통하여 공심에 끼우는 접지선 전주삽입 단계(S200)와;A ground wire pole insertion step (S200) of inserting the ground wire 10 into the air core through the ground wire inlet and outlet of the pole pole 1 so that the side of the bare wire 12 faces the pole pole;

크레인을 이용하여 접지선(10)이 삽입된 전주(1)를 들어올려서 구덩이(2)에 세우는 전주기립 단계(S300)와;A main cycle step (S300) of lifting up the electric pole 1 into which the ground wire 10 is inserted using a crane and standing in the pit 2;

긴 봉으로 나전선(12)을 전주(1)와 떨어뜨리며 흙을 되메워서 전주(1) 및 접지선(10)을 설치하는 접지선 설치 단계(S400)를 포함하여 구성하는 것을 특징으로 한다. It characterized in that it comprises a ground wire installation step (S400) to install the pole 1 and the grounding wire 10 by dropping the bare wire 12 with the pole pole 1 and the soil back.

여기서, 한전에서 접지시공시 접지극을 전주에서 분리하여 매립할 것을 규정하고 있으므로 접지극을 대체하는 나전선을 긴 봉으로 주의하여 전주와 떨어뜨리며 매립할 필요가 있다.Here, in KEPCO, it is required to separate the ground electrode from the pole when it is grounded, so that the bare wire that replaces the ground pole needs to be retracted from the pole with the long rod.

이상의 설명과 같이 본 발명에 따른 나전선 이용 접지공법은 배전선로 보호용 접지시공에 있어 요구하는 접지 저항값이 크게 완화되어 접지선(10)의 피복(11)을 벗겨서 나전선(12)을 접지극으로 이용하면 동봉 등 접지극을 생략할 수 있어 접지시공의 비용을 경감할 수 있는 효과를 제공하는 것이다.As described above, according to the present invention, the bare wire grounding method according to the present invention greatly reduces the ground resistance required in the grounding construction for protecting the distribution line, thereby removing the cover 11 of the ground wire 10 to use the bare wire 12 as the ground electrode. If so, it is possible to omit the grounding electrode, such as enclosed to provide an effect that can reduce the cost of grounding construction.

상기 서술한 내용 중 도면에 표시되지 않은 내용은 상기 서술된 내용을 바탕으로 당업자가 충분히 이해할 수 있는 내용으로 이하 도면에 표시되지 않아도 본 발명의 권리에 포함되어야 한다.Of the above-described contents, contents not shown in the drawings are to be understood by those skilled in the art based on the above-described contents and should be included in the rights of the present invention even if not shown in the drawings.

이상에서와 같은 내용의 본 발명이 속하는 기술 분야의 당업자는 본 발명의 기술적 사상이나 필수적 특징을 변경하지 않고서 다른 구체적인 형태로 실시될 수 있다는 것을 이해할 수 있을 것이다. 그러므로 이상에서 기술한 실시 예들은 모든 면에서 예시된 것이며 한정적인 것이 아닌 것으로 이해해야만 한다.Those skilled in the art to which the present invention pertains as described above may understand that the present invention may be implemented in other specific forms without changing the technical spirit or essential features of the present invention. Therefore, it should be understood that the embodiments described above are illustrated in all respects and are not limiting.

본 발명의 범위는 상기 상세한 설명보다는 후술하는 특허청구범위에 의하여 나타내어지며, 특허청구 범위의 의미 및 그리고 그 등가 개념으로부터 도출되는 모든 변경 또는 변형된 형태가 본 발명의 범위에 포함되는 것으로 해석되어야 한다.The scope of the invention is indicated by the following claims rather than the above description, and it should be construed that all changes or modifications derived from the meaning of the claims and their equivalents are included in the scope of the invention. .

1 : 전주 2 : 구덩이
10 : 접지선(11+12)
11 : 피복 12 : 나전선
1: pole 2: pit
10: ground wire (11 + 12)
11: sheath 12: bare wire

Claims (1)

배전선로 전주공사에서 접지 시공에 이용하는 공법에 있어,
접지선(10)의 필요 길이를 절단하고, 접지극으로 이용할 일정 길이의 피복(11)을 벗기는 접지선 피복분리 단계(S100)와;
나전선(12) 측이 전주의 밑으로 향하도록 접지선(10)을 전주(1)의 접지선 입출구를 통하여 공심에 끼우는 접지선 전주삽입 단계(S200)와;
크레인을 이용하여 접지선(10)이 삽입된 전주(1)를 들어올려서 구덩이(2)에 세우는 전주기립 단계(S300)와;
긴 봉으로 나전선(12)을 전주(1)와 떨어뜨리며 흙을 되메워서 전주(1) 및 접지선(10)을 설치하는 접지선 설치 단계(S400)를 포함하여 구성하는 것을 특징으로 하는 나전선 이용 접지공법.In the construction method used for grounding construction in electric power distribution line
A ground wire stripping step (S100) of cutting the required length of the ground wire 10 and removing the coating 11 having a predetermined length to be used as the ground electrode;
A ground wire pole insertion step (S200) of inserting the ground wire 10 into the air core through the ground wire inlet and outlet of the pole pole 1 so that the side of the bare wire 12 faces the pole pole;
A main cycle step (S300) of lifting up the electric pole 1 into which the ground wire 10 is inserted using a crane and standing in the pit 2;
Bare wire, characterized in that it comprises a ground wire installation step (S400) to drop the bare wire 12 with the electric pole (1) and to fill the soil back to install the electric pole (1) and the ground wire 10 with a long rod Grounding method used.
KR1020190143932A 2019-11-12 2019-11-12 Grounding Work Method Using Bare Wire KR20190133117A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220040159A (en) * 2020-09-23 2022-03-30 주식회사 성진 Fine Wire Grounding Electrode And Grounding Method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220040159A (en) * 2020-09-23 2022-03-30 주식회사 성진 Fine Wire Grounding Electrode And Grounding Method

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