[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

KR102335560B1 - Ground installations for electric supply pole - Google Patents

Ground installations for electric supply pole Download PDF

Info

Publication number
KR102335560B1
KR102335560B1 KR1020210080970A KR20210080970A KR102335560B1 KR 102335560 B1 KR102335560 B1 KR 102335560B1 KR 1020210080970 A KR1020210080970 A KR 1020210080970A KR 20210080970 A KR20210080970 A KR 20210080970A KR 102335560 B1 KR102335560 B1 KR 102335560B1
Authority
KR
South Korea
Prior art keywords
ground wire
block
grounding
protection block
ground
Prior art date
Application number
KR1020210080970A
Other languages
Korean (ko)
Inventor
임선아
Original Assignee
주식회사 세명기술단
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 주식회사 세명기술단 filed Critical 주식회사 세명기술단
Priority to KR1020210080970A priority Critical patent/KR102335560B1/en
Application granted granted Critical
Publication of KR102335560B1 publication Critical patent/KR102335560B1/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
    • 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
    • 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
    • F16H—GEARING
    • F16H19/00—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion
    • F16H19/02—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion
    • F16H19/04—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion comprising a rack
    • 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
    • H02G7/00—Overhead installations of electric lines or cables
    • H02G7/20—Spatial arrangements or dispositions of lines or cables on poles, posts or towers

Landscapes

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

Abstract

The present invention relates to a ground facility for a distribution electric pole, and an object of the present invention is to protect a ground wire that is wired along the ground from an electric pole without shaking and disconnection, to more safely protect the ground wire through double protection by a cover and a protection block, and to inspect the ground wire by exposing the ground wire with a simple operation during inspection of the ground wire. A ground facility for distribution electric pole according to the present invention includes: a fixing block (10) installed on a periphery of an electric pole (1); a ground wire protection block (20) rotatably mounted on the fixing block and having a ground wire (2) that is wired along the electric pole accommodated therein; a closing block (30) assembled next to the fixing block; and a cover (40) covering an upper portion of the ground wire protection block, wherein the fixing block includes a protection block mounting part (11) formed along a wiring direction of the ground wire and opened upward and a bearing installed on the protection block mounting part and assisting rotation of the ground wire protection block, and the ground wire protection block is provided with a ground wire accommodating groove (21) that is cylindrical and communicating with an outside along a longitudinal direction, an open part of the ground wire accommodating groove normally protects the ground wire toward an opposite side of the cover, and the ground wire accommodating groove is opened upward through the rotation during inspection of the ground wire.

Description

배전 전주용 접지 시설{GROUND INSTALLATIONS FOR ELECTRIC SUPPLY POLE}GROUND INSTALLATIONS FOR ELECTRIC SUPPLY POLE

본 발명은 배전 전주용 접지 시설에 관한 것으로, 더욱 상세하게는 전주에서 지중을 따라 배선되는 접지선을 외부로부터의 충돌로부터 보호하고 저항측정 등의 점검 작업이 용이한 배전 전주용 접지 시설에 관한 것이다.The present invention relates to a grounding facility for a distribution pole, and more particularly, to a grounding facility for a distribution pole that protects a grounding wire wired along the ground from an electric pole from an external collision and facilitates inspection work such as resistance measurement.

이 부분은 본 출원 내용과 관련된 배경 정보를 제공할 뿐 반드시 선행기술이 되는 것은 아니다.This section provides background information related to the content of the present application and is not necessarily prior art.

전력은 발전소로부터 변전소로 전송되어 흔히 콘크리트 전주를 지지물로 하는 배전선을 따라 전주 위의 주상 변압기를 통해 가정에 전달된다. 그런데, 이와 같이 설치되는 배전선로에는 지락(地絡), 뇌(雷), 서지(surge) 등 이상 전압에 의해 전력설비에 사고가 발생하는 것을 방지하고, 누전에 의해 재해가 발생하는 것을 방지하기 위해, 접지를 하게 된다.Electricity is transmitted from the power plant to the substation and delivered to the home via pole transformers above the poles along distribution lines often supported by concrete poles. However, in the distribution line installed in this way, it is necessary to prevent accidents from occurring in power facilities due to abnormal voltages such as ground faults, thunderstorms, surges, etc. For this, grounding is done.

이 때, 접지란 금속 또는 도전성 물체를 대지와 전기적으로 접속하여 그의 전위를 대지와 같게 하거나 전위차를 최소화시킴으로써, 전기회로나 전기기기의 전위를 지표와 같게 하여 낙뢰나 갑자기 들어오는 고전압으로부터 사람이나 건물을 보호할 수 있도록 하는 행위를 말한다.At this time, grounding means electrical connection of a metal or conductive object to the earth so that its potential is the same as that of the earth or by minimizing the potential difference. act to protect it.

종래에는 배전선로를 접지하기 위해, 전주를 매설할 수 있는 일정깊이의 구덩이를 굴착한 후, 상기 구덩이 가까이에 일정 깊이와 폭을 갖는 구덩이를 하나 더 굴착하여 이 구덩이에 다수의 접지봉을 매설하고, 상기 매설된 접지봉과 상기 전주 내에서 인출되는 접지선을 연결한 후 상기 구덩이에 흙을 채우는 일련의 과정을 수행하였다.Conventionally, in order to ground the distribution line, a pit of a certain depth in which an electric pole can be buried is excavated, and then one more pit having a certain depth and width is excavated near the pit, and a plurality of ground rods are buried in this pit, After connecting the buried ground rod and the ground wire drawn out from the electric pole, a series of processes of filling the pit with soil was performed.

이와 같이, 종래에는 전주를 매설하기 위한 구덩이뿐만 아니라 접지봉을 매설하기 위한 구덩이를 추가로 굴착하여야 하므로, 굴착 비용이 과다하게 소요될 수 있었다. 또한, 전주를 설치하기 위한 시공 면적이 넓어지게 되어 도심지에서 접지 공사시 포장된 도로 등을 파헤친 후 다시 복구해야 함으로써, 복구비가 과다하게 소요되는 문제가 발생할 수 있었다.As such, in the prior art, since a pit for burying the electric pole as well as a pit for burying the ground rod must be additionally excavated, the excavation cost may be excessive. In addition, since the construction area for installing the electric pole is widened, there may be a problem that the repair cost is excessively required by digging up the paved road during grounding in the downtown area and then restoring it again.

한편, 상기 전주 주변에 매설된 다수의 접지봉들은 별도의 표시나 보호 장구를 구비하지 않음으로써, 다른 지하 시설물의 설치를 위해 굴착을 하게 될 경우, 훼손되는 경우가 발생한다.On the other hand, since the plurality of ground rods buried around the electric pole do not have separate marks or protective equipment, they may be damaged when excavated for installation of other underground facilities.

등록특허 제10-0818938호는 좌우측으로 양분되어 볼트와 너트에 의해 결합되는 합성수지 재질의 링형상으로 전주 하부 외주연을 감싸되 외주연 좌우측에는 상하측으로 관통되어 인하선이 삽입되는 관통공을 갖는 체결관이 형성되고, 외주연 사방으로는 상부는 밀폐되고 하부로는 삽입공을 갖는 연결관이 형성되며, 내주연에는 체결관의 관통공과 연결관의 삽입공으로 관통되는 링홈이 형성되는 접지링체와; 좌우측으로 양분되어 상기 접지링체의 링홈에 삽입되는 금속링체로 외주연 좌우측에는 상기 체결관의 관통공 내주연에 위치되어 인하선과 통전되는 통전관이 각각 형성되고, 외주연 사방에는 상기 연결관의 삽입공 상단에 위치되는 통전원판이 각각 형성되는 전도링체와; 도전성 시멘트와 탄소섬유 등을 혼합한 모르타르를 믹싱가공하여 제조된 원통형상으로 매립되어 전주의 하단부를 감싸고, 하단에는 수평으로 절곡연장되어 토양과의 접지면적을 증대하는 날개부가 형성되며, 상단면 사방에는 내측으로 긴 앵커볼트가 각각 기립고정되어 상부가 돌출되는 도전체인 접지우물통과; 일단은 상기 접지우물통 상단의 앵커볼트가 삽입되어 너트로 체결고정되는 고정공을 갖는 수평대가 형성되고, 수평대 선단에서 지주 외주연을 따라 수직연장되되 절연코팅층을 감싸이며 상단이 상기 접지링체의 연결관 삽입공에 삽입되어 상기 전도링체의 통전원판과 접촉되어 통전되는 통전접지바를 구비하는 전주용 접지판으로, 지하에 매설되는 전주의 하단부를 감싸는 도체인 접지우물통을 형성하여 인하선과 연결시킴으로써 인하선의 접지를 보다 손쉽고 간편하게 설치 시공할 수 있고, 도전성 시멘트와 탄소섬유를 혼합한 접지 우물통을 통해서 보다 높은 접지효과를 얻을 수 있다 하지만, 접지저항의 측정이 어렵다.Registered Patent No. 10-0818938 is a ring shape made of synthetic resin material that is bisected to the left and right and joined by a bolt and a nut, and wraps around the lower outer periphery of the electric pole. a grounding ring body in which a pipe is formed, a connecting pipe having an insertion hole is formed at an upper portion and an insertion hole is formed at a lower portion of the outer periphery, and a ring groove is formed on the inner periphery through a through hole of the fastening pipe and an insertion hole of the connecting pipe; A metal ring divided into left and right and inserted into the ring groove of the grounding ring body. On the left and right sides of the outer periphery, a conducting tube that is located on the inner periphery of the through hole of the fastening tube and conducts electricity with the down wire is formed, respectively, and the outer periphery is inserted in all directions of the connecting tube a conductive ring body in which a power supply plate positioned at the top of the ball is formed, respectively; It is buried in a cylindrical shape manufactured by mixing and processing mortar mixed with conductive cement and carbon fiber, and surrounds the lower part of the pole, and the lower part is bent and extended horizontally to form a wing part that increases the contact area with the soil, and the upper part is formed in all directions There is a grounding well through which long anchor bolts are erected and fixed to the inside, respectively, and the upper part of which is a protruding conductor; One end is formed with a horizontal bar having a fixing hole through which an anchor bolt at the top of the grounding well is inserted and fastened with a nut, vertically extended along the outer periphery of the post from the tip of the horizontal bar, and wraps around the insulating coating layer, and the upper end of the grounding ring body A grounding plate for electric poles having a energized grounding bar that is inserted into the connection pipe insertion hole and is in contact with the energized power plate of the conductive ring body and is energized. By forming a grounding well that is a conductor surrounding the lower end of an electric pole buried underground and connecting it with the down-line The grounding of the in-line can be installed and constructed more easily and conveniently, and a higher grounding effect can be obtained through a grounding well that is mixed with conductive cement and carbon fiber. However, it is difficult to measure the grounding resistance.

한편, 전주의 접지선은 정기적으로 접지저항을 측정해야 하고, 측정 시의 대지상태에 관계없이 규정 저항치를 유지하여야 하며, 전주의 접지저항을 측정하는 방법으로 클램프 미터(clamp meter/hook meter)를 이용하여 측정하는 방법이 있는데, 이 방법은 전주의 상부까지 작업자가 올라가 접지선 인입구를 통해 인입되는 접지선 부분에 클램프 미터의 측정헤드를 감싸서 측정한 후 내려오는 작업이다.On the other hand, the grounding wire of the electric pole should measure the grounding resistance regularly, and the specified resistance value should be maintained regardless of the ground condition at the time of measurement. There is a method of measuring with the pole. In this method, the operator climbs up to the top of the pole, wraps the measuring head of the clamp meter around the part of the ground wire coming in through the ground wire inlet, and then comes down after measuring.

이와 같은 종래의 측정방법은 작업자가 전주에 직접 오르내리거나 고소작업차를 타고 불안정한 자세로 접지저항을 측정하여야 하는 어려움이 있다.Such a conventional measurement method has a difficulty in that the operator has to directly climb up and down on a pole or ride a high-place work vehicle to measure the grounding resistance in an unstable posture.

등록특허 제10-2028183호는 전주의 내측에 시설하는 접지선의 접지저항을 측정하기 위해 상기 전주의 접지선 인출구를 통해 나와서 지표면 아래에 매설되는 상기 접지선의 일부를 둘러 감아서 보호 및 지상에 노출시키고, 지상에 노출된 상기 접지선의 접지저항을 클램프 미터로 측정할 수 있도록 측정구멍이 형성된 스풀; 및 상기 스풀이 지상에서 일정한 범위를 벗어나지 않도록 지지하기 위해 상기 전주의 하부에 고정된 클램프; 를 포함하는 전주 내 접지선의 접지저항 측정용 지상 노출장치이며, 전주의 내측에 시설하고 접지선 인출구를 통해 나와서 지표면 아래에 매설되는 접지선의 일부를 스풀에 둘러 감아서 외부와 접촉은 최소화한 상태로 보호하면서 지상에 노출시킴으로써 클램프 미터의 측정헤드로 접지선을 감싸서 측정하는 것인데, 스풀과 접지선이 외부로 돌출 및 노출되어 손상을 일으키는 문제점이 있다.Registered Patent No. 10-2028183 discloses protection and exposure to the ground by winding around a part of the grounding wire buried under the ground, coming out through the grounding wire outlet of the pole to measure the grounding resistance of the grounding wire installed inside the pole, a spool having a measuring hole to measure the grounding resistance of the grounding wire exposed to the ground with a clamp meter; and a clamp fixed to the lower part of the electric pole to support the spool so as not to deviate from a certain range on the ground. It is a ground exposure device for measuring the grounding resistance of the grounding wire in the pole including It is measured by covering the grounding wire with the measuring head of the clamp meter by exposing it to the ground, but there is a problem that the spool and the grounding wire protrude and are exposed to the outside, causing damage.

등록특허 제10-0818938호Registered Patent No. 10-0818938 등록특허 제10-2028183호Registered Patent No. 10-2028183

본 발명은 전술한 바와 같은 문제점을 해결하기 위한 것으로, 전주에서 지중을 따라 배선되는 접지선을 흔들림과 단선없이 보호하고 덮개와 접지선 보호블록에 의한 2중 보호를 통해 접지선을 더욱 안전하게 보호하며 접지선의 점검 시 접지선을 간단한 조작으로 노출시켜 점검하는 배전 전주용 접지 시설을 제공하려는데 그 목적이 있다. The present invention is to solve the above-mentioned problems, protects the ground wire wired along the ground from the electric pole without shaking and disconnection, protects the ground wire more safely through double protection by the cover and the ground wire protection block, and checks the ground wire The purpose is to provide a grounding facility for distribution poles that exposes and inspects the city grounding wire through a simple operation.

본 발명에 의한 배전 전주용 접지시설은, 전주의 둘레부에 설치되는 고정블록과; 상기 고정블록에 회전 가능하게 장착되며 상기 전주를 따라 배선되는 접지선이 수용되는 접지선 보호블록과; 상기 고정블록의 옆에 조립되는 마감블록과; 상기 접지선 보호블록의 상부를 덮는 덮개를 포함하고, 상기 접지선 보호블록은 원통형이면서 길이방향을 따라 외부와 통하는 접지선 수용홈이 구비되며, 평상시 상기 접지선 수용홈의 개방부가 상기 덮개의 반대쪽을 향해 상기 접지선을 보호하고 상기 접지선의 점검 시 회전을 통해 상기 접지선 수용홈이 상부를 향해 개방되는 것을 특징으로 한다.A grounding facility for distribution poles according to the present invention includes: a fixed block installed on the periphery of an electric pole; a ground line protection block which is rotatably mounted on the fixed block and accommodates a ground line wired along the electric pole; a closing block assembled next to the fixed block; and a cover covering the upper part of the grounding wire protection block, the grounding wire protection block being cylindrical and provided with a grounding wire accommodating groove communicating with the outside in a longitudinal direction, and the opening of the grounding wire receiving groove is usually directed toward the opposite side of the cover. It is characterized in that the ground wire accommodating groove is opened toward the upper part through rotation during the inspection of the ground wire.

본 발명에 의한 배전 전주용 접지시설에 의하면, 접지선이 강성이 높은 고정블록을 통해 지지되어 흔들림에 의한 단선을 방지할 수 있고 아울러, 덮개와 접지선 보호블록이 접지선을 2중으로 보호하여 접지선을 더욱 안전하게 보호함으로써 접지선의 손상으로 인한 접지불량을 방지하고 결국 배전계통을 안전하게 유지할 수 있다.According to the grounding facility for distribution poles according to the present invention, the grounding wire is supported through a fixed block with high rigidity to prevent disconnection due to shaking, and the cover and the grounding wire protection block double protect the grounding wire to make the grounding wire safer By protecting it, it is possible to prevent faulty grounding due to damage to the grounding wire and, in the end, to keep the distribution system safe.

그리고, 덮개의 개폐 동작과 연동하여 접지선 보호블록이 보호위치와 점검위치로 자동 전환되므로 작업성이 매우 우수한 효과가 있다.And, since the ground wire protection block is automatically switched to the protection position and the inspection position in conjunction with the opening and closing operation of the cover, workability is very excellent.

도 1은 본 발명에 의한 배전 전주용 접지시설의 설치 상태 측면도.
도 2는 본 발명에 의한 배전 전주용 접지시설의 분해 사시도.
도 3은 본 발명에 의한 배전 전주용 접지시설의 평면도.
도 4는 본 발명에 의한 배전 전주용 접지시설의 작동 상태를 보인 측면도.
도 5는 본 발명에 의한 배전 전주용 접지시설에 적용된 구동기어의 분리를 보인 평면도.1 is a side view of an installation state of a grounding facility for distribution poles according to the present invention.
Figure 2 is an exploded perspective view of a grounding facility for distribution poles according to the present invention.
3 is a plan view of a grounding facility for distribution poles according to the present invention.
Figure 4 is a side view showing the operating state of the grounding facility for distribution poles according to the present invention.
Figure 5 is a plan view showing the separation of the driving gear applied to the grounding facility for distribution poles according to the present invention.

하기에서 본 발명을 설명함에 있어, 관련된 공지 기능 또는 구성에 대한 구체적인 설명이 본 발명의 요지를 불필요하게 흐릴 수 있다고 판단되는 경우에는 그 상세한 설명은 생략할 것이다. 그리고 후술되는 용어들은 본 발명에서의 기능을 고려하여 정의된 용어들로서 이는 사용자, 운용자의 의도 또는 관례 등에 따라 달라질 수 있다. 그러므로 그 정의는 본 명세서 전반에 걸친 내용을 토대로 내려져야 할 것이다.In the following description of the present invention, if it is determined that a detailed description of a related well-known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted. And the terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to intentions or customs of users and operators. Therefore, the definition should be made based on the content throughout this specification.

도 1 내지 도 3에서 보이는 바와 같이, 본 발명에 의한 배전 전주용 접지시설은, 고정블록(10), 고정블록(10) 안에 설치되며 전주(1)를 따라 배선되는 접지선(2)이 수용되는 접지선 보호블록(20), 고정블록(10)의 옆에 조립되는 마감블록(30), 접지선 보호블록(20)의 상부를 덮는 덮개(40)를 포함하고, 접지선 보호블록(20)과 덮개(40)를 통해 접지선(2)을 2중으로 보호하며 필요 시 접지선 보호블록(20)이 접지선(2)을 외부로 노출시키도록 구성된다.1 to 3, the grounding facility for distribution poles according to the present invention is a fixed block 10, a grounding wire 2 installed in the fixed block 10 and wired along the electric pole 1 is accommodated It includes a ground wire protection block 20, a closing block 30 assembled next to the fixing block 10, and a cover 40 covering the upper part of the ground wire protection block 20, and a ground wire protection block 20 and a cover ( 40) through the double protection of the ground wire (2), and if necessary, the ground wire protection block 20 is configured to expose the ground wire (2) to the outside.

고정블록(10)은 전주(1)의 둘레부로서 접지선(2)이 인출되는 곳에 지면에 지지되도록 설치되는 것으로, 전주(1)에 고정구를 통해 고정되고 지중에 정착되는 앵커를 통해 고정되고, 접지선 보호블록(20)이 장착되는 보호블록 장착부(11)를 포함한다.The fixing block 10 is a periphery of the electric pole 1, which is installed to be supported on the ground where the ground wire 2 is drawn out, and is fixed to the electric pole 1 through a fixture and is fixed through an anchor fixed in the ground, It includes a protection block mounting unit 11 to which the ground wire protection block 20 is mounted.

고정블록(10)은 대략 육면체 형태이며, 콘크리트 또는 금속을 재질로 한다.The fixed block 10 has a substantially hexahedral shape, and is made of concrete or metal.

보호블록 장착부(11)는 접지선 보호블록(20)의 외형에 맞는 원형을 따라 긴 홈의 형태이며, 접지선 보호블록(20)이 옆에서 끼워지거나 상부에서 끼워지는 형태 모두가 가능하고, 단 접지선 보호블록(20)의 제자리 회전을 위하여 원의 절반과 같거나 큰 크기이면서 상부가 개방된다.The protective block mounting part 11 is in the form of a long groove along a circle that matches the outer shape of the grounding wire protective block 20, and the grounding wire protective block 20 is fitted from the side or from the top. For the in-place rotation of the block 20, the upper part is opened with a size equal to or greater than half of the circle.

보호블록 장착부(11)는 접지선 보호블록(20)의 회전을 돕기 위한 볼베어링(13)이 원주방향을 따라 2개소 이상에 설치될 수 있다.In the protective block mounting unit 11 , a ball bearing 13 for assisting rotation of the ground wire protection block 20 may be installed at two or more places along the circumferential direction.

고정블록(10)은 접지선(2)이 전주(1)에 붙지 않도록 가이드벽(12)이 포함될 수 있다. 가이드벽(12)은 고정블록(10)의 저면에 하부를 향해 돌출되는 구조이고 접지선(2)의 배선을 가이드한다.The fixed block 10 may include a guide wall 12 so that the ground wire 2 does not stick to the electric pole 1 . The guide wall 12 has a structure protruding downward from the bottom surface of the fixing block 10 and guides the wiring of the ground wire 2 .

접지선 보호블록(20)은 접지선(2)의 안정적인 배선을 위하면서 접지선(2)이 전주(1)과 유지하는 간격을 위하여 일정 길이 이상으로 이루어지며 제자리 회전이 가능하도록 외형이 원형인 원통이고 접지선(2)이 삽입되도록 접지선 삽입홈(21)이 포함된다.The grounding wire protection block 20 is made of a certain length or more for the interval that the grounding wire 2 maintains with the electric pole 1 for stable wiring of the grounding wire 2, and has a circular shape so as to be able to rotate in place. A ground wire insertion groove 21 is included so that (2) is inserted.

접지선 삽입홈(21)은 접지선 보호블록(20)의 둘레부에서 중심을 따라 형성되고 즉 둘레부가 개방부가 되는 것이다. 이와 같은 구조에 따르면, 접지선 삽입홈(21)의 폭이 접지선(2)의 지름보다 크기 때문에 접지선 보호블록(20)의 많은 부분은 접지선(2)을 보호하게 된다.The ground wire insertion groove 21 is formed along the center at the periphery of the ground wire protection block 20, that is, the periphery becomes an open part. According to this structure, since the width of the ground wire insertion groove 21 is larger than the diameter of the ground wire 2 , a large portion of the ground wire protection block 20 protects the ground wire 2 .

마감블록(30)은 접지선 보호블록(20)을 따라 배선되는 접지선(2)의 옆을 덮어 보호하기 위한 것이며, 후술하는 개폐연동수단이 외부로 노출되지 않도록 덮는 모든 구조가 가능하고 고정블록(10)에 볼트와 너트 등을 통해 분리 가능하게 결합된다.The closing block 30 is to cover and protect the side of the ground wire 2 that is wired along the ground wire protection block 20, and any structure that covers the opening/closing interlocking means to be described later is not exposed to the outside, and the fixed block 10 ) and is detachably coupled with bolts and nuts.

마감블록(30)이 고정블록(10)에 결합될 때 접지선(2)을 감쌀 수 있도록 대략 반원형의 접지선 안착홈이 포함될 수 있다.When the closing block 30 is coupled to the fixed block 10 , a substantially semicircular ground wire seating groove may be included to wrap the ground wire 2 .

덮개(40)는 고정블록(10)과 마감블록(30)을 덮는 면적(접지선 보호블록(20)만 덮는 면적도 가능)이며 양쪽이 고정블록(10)과 마감블록(30)에 각각 형성되는 가이드레일(31)에 슬라이딩 가능하게 연결되어 슬라이딩을 통해 접지선 보호블록(20)을 보호하고 잠금수단을 통해 잠금된다.The cover 40 is an area covering the fixing block 10 and the closing block 30 (an area covering only the ground wire protection block 20 is also possible), and both sides are formed in the fixing block 10 and the closing block 30, respectively. It is slidably connected to the guide rail 31 to protect the ground wire protection block 20 through sliding and is locked through a locking means.

덮개(40)가 슬라이딩으로 개폐 동작할 때 접지선 보호블록(20)이 회전하도록 개폐연동수단을 포함하며, 도 4에서 보이는 것처럼, 평상 시 접지선 보호블록(20)의 접지선 삽입홈(21)의 개방부가 하부 즉 덮개(40)의 반대쪽을 향하는 경우 덮개(40)는 닫힘 상태이고, 접지선(2)의 점검(저항측정 등)이나 교체 시 덮개(40)를 도면 기준 우측으로 슬라이딩시키면 개폐연동수단을 통해 접지선 보호블록(20)이 회전하여 접지선 삽입홈(21)의 개방부가 상부를 향하도록 한다.The cover 40 includes an opening/closing interlocking means so that the grounding protection block 20 rotates when the cover 40 opens and closes by sliding, and as shown in FIG. When the addition faces the lower part, i.e., the opposite side of the cover 40, the cover 40 is in a closed state, and when checking (resistance measurement, etc.) or replacing the ground wire 2, sliding the cover 40 to the right side of the drawing opens and closes interlocking means. Through the ground wire protection block 20 is rotated so that the open part of the ground wire insertion groove 21 faces upward.

개폐연동수단은 접지선 보호블록(20)의 둘레부에 형성되는 기어부(22), 기어부(22)에 치합되는 전달기어(42), 전달기어(42)에 치합되는 구동기어(43), 덮개(40)의 저면에 형성되며 구동기어(43)에 치합되는 래크(41)를 포함한다.The opening/closing interlocking means includes a gear part 22 formed on the periphery of the ground wire protection block 20, a transmission gear 42 meshing with the gear part 22, a driving gear 43 meshing with the transmission gear 42, It is formed on the bottom surface of the cover 40 and includes a rack 41 meshed with the driving gear (43).

기어부(22)는 접지선 보호블록(20)과 동일한 형태이며 접지선 보호블록(20)에 고정되고, 접지선 보호블록(20)의 구조 상 전체적인 링 형상으로 형성되지 않지만 접지선 삽입홈(21)의 개방과 폐쇄는 가능하다.The gear part 22 has the same shape as the ground wire protection block 20 and is fixed to the ground wire protection block 20 , but is not formed in an overall ring shape on the structure of the ground wire protection block 20 , but the opening of the ground wire insertion groove 21 . and closure are possible.

전달기어(42)와 구동기어(43)는 각각 고정블록(10)에 제자리 회전 가능하게 설치되며 덮개(40)의 슬라이딩에 따른 접지선 보호블록(20)의 회전동작이 효율적으로 이루어지도록 2개의 기어가 사용된 것이다.The transmission gear 42 and the driving gear 43 are installed rotatably in place on the fixed block 10, respectively, and are two gears so that the rotational operation of the ground wire protection block 20 according to the sliding of the cover 40 is efficiently made. has been used

래크(41)는 덮개(40)의 저면에 좌우 방향을 따라 형성되며 덮개(40)의 개폐동작을 구동기어(43)에 전달한다.The rack 41 is formed along the left-right direction on the bottom surface of the cover 40 and transmits the opening/closing operation of the cover 40 to the driving gear 43 .

고정블록(10)과 접지선 보호블록(20)과 마감블록(30) 및 덮개(40)는 수밀성 확보를 위하여 패킹 처리된다.The fixing block 10, the ground wire protection block 20, the closing block 30, and the cover 40 are packed to ensure watertightness.

본 발명에 의한 배전 전주용 접지시설의 작용은 다음과 같다.The operation of the grounding facility for distribution poles according to the present invention is as follows.

접지선(2)은 접지선 보호블록(20)의 접지선 삽입홈(21) 안에 배선된 후 고정블록(10)과 마감블록(30) 사이를 통해 지중에 배선되고, 이 때, 가이드벽(12)을 통해 전주(1)에 가까워지지 않는 보호 상태가 유지된다.The ground wire (2) is wired in the ground wire insertion groove (21) of the ground wire protection block (20) and then is wired in the ground through between the fixing block (10) and the closing block (30), and at this time, the guide wall (12) A state of protection is maintained that does not come close to the electric pole (1) through the.

이 때, 접지선 보호블록(20)은 접지선 삽입홈(21)의 개방부가 덮개(40)의 반대쪽인 저부를 향하며 즉, 접지선 보호블록(20)이 접지선(2)을 상부에서 덮어 덮개(40)와 함께 2중으로 접지선(2)을 보호한다.At this time, in the ground wire protection block 20, the open part of the ground wire insertion groove 21 faces the bottom opposite to the cover 40, that is, the ground wire protection block 20 covers the ground wire 2 from the top and covers the cover 40. Protect the grounding wire (2) in double with

한편, 접지선(2)의 저항 측정 등의 점검이 필요한 경우 덮개(40)를 도 4 기준 우측으로 슬라이딩시키면 다음과 같이 래크(41)의 우측 이동 - 구동기어(43)의 시계방향 회전 - 전달기어(42)의 반시계방향 회전 - 기어부(22)에 의한 접지선 보호블록(20)의 시계방향 회전의 동작이 일어나고, 따라서, 접지선 보호블록(20)의 접지선 삽입홈(21)의 개방부가 상부를 향하게 되며, 이 때, 덮개(40)가 접지선 보호블록(20)을 벗어난 상태이므로 접지선 삽입홈(21)이 개방 및 접지선(2)이 상부로 노출된다.On the other hand, when it is necessary to check the resistance of the ground wire 2, etc., when the cover 40 is slid to the right of FIG. 4, the rack 41 moves to the right as follows - clockwise rotation of the driving gear 43 - Transmission gear Counterclockwise rotation of 42 - The operation of clockwise rotation of the ground wire protection block 20 by the gear part 22 occurs, and therefore, the opening of the ground wire insertion groove 21 of the ground wire protection block 20 is upper At this time, since the cover 40 is out of the ground wire protection block 20, the ground wire insertion groove 21 is opened and the ground wire 2 is exposed to the top.

접지선(2)의 점검을 완료한 후 덮개(40)를 도 4 기준 좌측으로 이동시키면, 래크(41)의 좌측 이동 - 구동기어(43)의 반시계방향 회전 - 전달기어(42)의 시계방향 회전 - 기어부(22)에 의한 접지선 보호블록(20)의 반시계방향 회전의 동작이 일어나게 되므로 접지선 삽입홈(21)이 저부를 향하고 덮개(40)가 덮히게 된다.When the cover 40 is moved to the left of FIG. 4 after completing the inspection of the ground wire 2, the left movement of the rack 41 - counterclockwise rotation of the drive gear 43 - clockwise direction of the transmission gear 42 Rotation - Since the counterclockwise rotation of the ground wire protection block 20 by the gear part 22 occurs, the ground wire insertion groove 21 faces the bottom and the cover 40 is covered.

이와 같이 덮개(40)의 개폐동작과 연동하여 접지선 보호블록(20)이 회전하여 접지선(2)을 보호 상태 또는 노출 상태로 전환시키게 되므로 작업이 매우 용이하다.As described above, in conjunction with the opening and closing operation of the cover 40, the ground wire protection block 20 rotates to convert the ground wire 2 into a protected state or an exposed state, so the operation is very easy.

한편, 본 발명은 덮개(40)의 개폐동작과 접지선 보호블록(20)의 회전이 연동되지 않도록 구성되는 것도 포함된다.On the other hand, the present invention includes a configuration so that the opening and closing operation of the cover 40 and the rotation of the ground wire protection block 20 are not interlocked.

도 5에서 보이는 것처럼, 구동기어(43)는 고정블록(10)에 전후진 가능하게 장착되며, 예를 들어, 구동기어(43)는 마감블록(30)을 관통하는 전후진봉(50)과 연결된다.As shown in FIG. 5 , the driving gear 43 is mounted to the fixed block 10 so as to move forward and backward, for example, the driving gear 43 is connected to the forward and backward rod 50 passing through the closing block 30 . do.

전후진봉(50)은 단부에 마감블록(30)의 외부로 돌출되는 손잡이가 포함된다.The forward and backward bar 50 includes a handle protruding to the outside of the closing block 30 at the end.

구동기어(43)의 축(43a)에는 스프링의 탄성력을 통해 출몰하는 고정볼(43b)이 포함된다.The shaft 43a of the driving gear 43 includes a fixed ball 43b that protrudes and retracts through the elastic force of the spring.

고정블록(10)에는 구동기어(43)의 축(43a)이 전후진되는 홈이 구성되면서 상기 홈에는 고정볼(43b)이 끼움되는 제1,2볼홈(15-1,15-2)이 포함되고, 제1볼홈(15-1)은 구동기어(43)가 전달기어(42)와 치합된 상태이며 제2볼홈(15-2)은 구동기어(43)가 전달기어(42)로부터 떨어진 상태이다.The fixing block 10 has a groove in which the shaft 43a of the driving gear 43 moves forward and backward, and the groove includes first and second ball grooves 15-1 and 15-2 into which the fixing ball 43b is fitted. In the first ball groove 15-1, the driving gear 43 is meshed with the transmission gear 42, and the second ball groove 15-2 is the driving gear 43 separated from the transmission gear 42. is the state

이와 같은 구성에 따르면, 전후진봉(50)을 잡고 잡아당겨 전진시키면 고정볼(43b)이 스프링을 압축시키면서 축(3a) 안에 삽입되었다가 제2볼홈(15-2)에 탄력적으로 끼워지고, 반대로 전후진봉(50)을 뒤로 밀어 후진시키면 고정볼(43b)이 제2볼홈(15-2)에서 나오면서 축(3a) 안에 삽입되었다가 제1볼홈(15-1)에 탄력적으로 끼워지게 된다. 따라서, 전후진봉(50)이 고정볼(43b)을 통해 전진 상태와 후진 상태를 유지하게 되므로 기어부(22)와 전달기어(42)와 구동기어(43)의 결합과 분리 상태를 안정적으로 유지하게 된다.According to this configuration, when the forward and backward movement rod 50 is held and pulled forward, the fixing ball 43b is inserted into the shaft 3a while compressing the spring, and then is elastically fitted into the second ball groove 15-2, and vice versa. When the forward and backward movement rod 50 is pushed back, the fixing ball 43b comes out of the second ball groove 15-2, is inserted into the shaft 3a, and is elastically fitted into the first ball groove 15-1. Therefore, since the forward and backward rod 50 maintains the forward state and the backward state through the fixing ball 43b, the coupling and separation state of the gear part 22, the transmission gear 42, and the driving gear 43 are stably maintained. will do

구동기어(43)가 래크(41)와 전달기어(42)로부터 떨어지면 덮개(40)를 열고 닫을 때 접지선 보호블록(20)은 회전하지 않고 고정 상태를 유지한다.When the driving gear 43 is separated from the rack 41 and the transmission gear 42, the ground wire protection block 20 does not rotate and maintains a fixed state when the cover 40 is opened and closed.

이때에도, 접지선 보호블록(20)을 회전시킬 필요가 있으며, 이를 위하여 전달기어(42)에는 마감블록(30)을 관통하여 외부로 돌출되는 회전 손잡이(60)가 포함된다. 즉, 구동기어(43)를 당겨 래크(41) 및 전달기어(42)와 떨어뜨린 후 회전 손잡이(60)를 자유롭게 돌려 접지선 보호블록(20)을 회전시킬 수 있다.Even at this time, it is necessary to rotate the ground wire protection block 20 , and for this purpose, the transmission gear 42 includes a rotation handle 60 protruding through the closing block 30 to the outside. That is, after pulling the drive gear 43 away from the rack 41 and the transmission gear 42 , the rotation handle 60 can be freely rotated to rotate the ground wire protection block 20 .

10 : 고정블록, 11 : 보호블록 장착부
12 : 가이드벽, 13 : 볼베어링
14,31 : 가이드레일, 15-1,15-2 : 제1,2볼홈
20 : 접지선 보호블록, 21 : 접지선 삽입홈
22 : 기어부,
30 : 마감블록, 40 : 덮개
41 : 래크, 42 : 전달기어
43 : 구동기어, 43a : 축
43b : 고정볼, 50 : 전후진봉
60 : 회전 손잡이,10: fixed block, 11: protection block mounting part
12: guide wall, 13: ball bearing
14,31: guide rail, 15-1,15-2: 1st and 2nd ball grooves
20: ground wire protection block, 21: ground wire insertion groove
22: gear unit,
30: closing block, 40: cover
41: rack, 42: transmission gear
43: drive gear, 43a: shaft
43b: fixed ball, 50: forward and backward
60: rotary knob;

Claims (4)

전주(1)의 둘레부에 설치되는 고정블록(10)과;
상기 고정블록에 회전 가능하게 장착되며 상기 전주를 따라 배선되는 접지선(2)이 수용되는 접지선 보호블록(20)과;
상기 고정블록의 옆에 조립되는 마감블록(30)과;
상기 접지선 보호블록의 상부를 덮는 덮개(40)를 포함하고,
상기 고정블록은 상기 접지선의 배선방향을 따라 형성되며 상부를 향해 개방되는 보호블록 장착부(11), 상기 보호블록 장착부에 설치되며 상기 접지선 보호블록의 회전을 도와주는 베어링을 포함하고,
상기 접지선 보호블록은 원통형이면서 길이방향을 따라 외부와 통하는 접지선 수용홈(21)이 구비되며, 평상시 상기 접지선 수용홈의 개방부가 상기 덮개의 반대쪽을 향해 상기 접지선을 보호하고 상기 접지선의 점검 시 회전을 통해 상기 접지선 수용홈이 상부를 향해 개방되는 것을 특징으로 하는 배전 전주용 접지시설.A fixed block 10 installed on the periphery of the electric pole (1) and;
a ground wire protection block 20 that is rotatably mounted on the fixed block and accommodates a ground wire 2 wired along the electric pole;
a closing block 30 assembled next to the fixed block;
and a cover 40 covering the upper portion of the ground wire protection block,
The fixed block is formed along the wiring direction of the ground wire and includes a protective block mounting part 11 open upward, a bearing installed in the protective block mounting part and helping the rotation of the grounding wire protection block,
The ground wire protection block is cylindrical and provided with a ground wire accommodating groove 21 communicating with the outside in the longitudinal direction, and the open part of the ground wire accommodating groove normally protects the ground wire toward the opposite side of the cover and rotates when the ground wire is checked. A grounding facility for distribution poles, characterized in that the ground wire accommodating groove is opened toward the top through the. 청구항 1에 있어서, 상기 접지선 보호블록의 둘레부에 형성되는 기어부(22), 상기 기어부에 치합되는 전달기어(42), 상기 전달기어에 치합되는 구동기어(43), 상기 덮개의 저면에 형성되며 상기 구동기어에 치합되는 래크(41)에 의한 개폐연동수단을 포함하여, 상기 덮개가 좌우 슬라이딩을 통해 개폐될 때 상기 접지선 보호블록이 양방향으로 회전하는 것을 특징으로 하는 배전 전주용 접지시설.The method according to claim 1, wherein the gear portion 22 formed on the periphery of the ground wire protection block, the transmission gear 42 meshed with the gear portion, the drive gear 43 meshed with the transmission gear, the lower surface of the cover A grounding facility for distribution poles, characterized in that the ground wire protection block rotates in both directions when the cover is opened and closed through left and right sliding, including an opening/closing interlocking means by a rack (41) that is formed and meshed with the driving gear. 청구항 2에 있어서, 상기 구동기어는 전후진봉(50)을 통해 전후진 가능하게 장착되어 상기 래크 및 전달기어와 분리 가능하게 장착되고, 상기 전달기어는 상기 구동기어가 상기 래크 및 전달기와 분리된 상태에서 회전 손잡이(60)의 조작을 통해 상기 접지선 보호블록을 회전시키는 것을 특징으로 하는 배전 전주용 접지시설.The method according to claim 2, wherein the driving gear is mounted so as to be able to move forward and backward through a forward and backward rod (50) to be detachably mounted to the rack and the transmission gear, and the transmission gear is in a state in which the driving gear is separated from the rack and the transmission gear. Grounding facility for distribution poles, characterized in that by rotating the protective block of the grounding wire through the operation of the rotary knob (60) in the distribution pole. 청구항 3에 있어서, 상기 고정블록에 형성되는 제1,2볼홈(15-1,15-2), 상기 전후진봉에 스프링을 통해 탄력적으로 출몰 가능하게 장착되며 상기 제1 또는 제2볼홈에 선택적으로 결합되어 상기 구동기어를 고정하는 고정볼(43b)을 포함하는 것을 특징으로 하는 배전 전주용 접지시설.The method according to claim 3, wherein the first and second ball grooves (15-1, 15-2) formed in the fixing block are elastically mounted to and from the forward and backward rods through a spring, and selectively in the first or second ball grooves. A grounding facility for a distribution pole, characterized in that it comprises a fixed ball (43b) that is coupled to fix the driving gear.
KR1020210080970A 2021-06-22 2021-06-22 Ground installations for electric supply pole KR102335560B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020210080970A KR102335560B1 (en) 2021-06-22 2021-06-22 Ground installations for electric supply pole

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020210080970A KR102335560B1 (en) 2021-06-22 2021-06-22 Ground installations for electric supply pole

Publications (1)

Publication Number Publication Date
KR102335560B1 true KR102335560B1 (en) 2021-12-07

Family

ID=78868044

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020210080970A KR102335560B1 (en) 2021-06-22 2021-06-22 Ground installations for electric supply pole

Country Status (1)

Country Link
KR (1) KR102335560B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102463227B1 (en) * 2022-02-15 2022-11-07 김남균 Metal electric pole capable of grounding line fixing
CN116799710A (en) * 2023-08-23 2023-09-22 河北雄胜鸿安电气科技有限公司 Auxiliary assembly is cup jointed to cable protection pipe

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100818938B1 (en) 2008-02-13 2008-04-04 (주)우일전기설계감리 Ground plate for electric pole
KR101954689B1 (en) * 2018-09-12 2019-03-06 이수기술(주) Power line tower
KR101995975B1 (en) * 2019-02-27 2019-07-03 주식회사 선화이앤씨 Earth plate of electric supply poles
KR102028183B1 (en) 2019-08-30 2019-10-04 (주)웅진엔지니어링 Exposure apparatus for earthing resistance measurement of earth wire
KR102089522B1 (en) * 2019-05-20 2020-03-16 안정예 Stability apparatus of underground distribution line

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100818938B1 (en) 2008-02-13 2008-04-04 (주)우일전기설계감리 Ground plate for electric pole
KR101954689B1 (en) * 2018-09-12 2019-03-06 이수기술(주) Power line tower
KR101995975B1 (en) * 2019-02-27 2019-07-03 주식회사 선화이앤씨 Earth plate of electric supply poles
KR102089522B1 (en) * 2019-05-20 2020-03-16 안정예 Stability apparatus of underground distribution line
KR102028183B1 (en) 2019-08-30 2019-10-04 (주)웅진엔지니어링 Exposure apparatus for earthing resistance measurement of earth wire

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102463227B1 (en) * 2022-02-15 2022-11-07 김남균 Metal electric pole capable of grounding line fixing
CN116799710A (en) * 2023-08-23 2023-09-22 河北雄胜鸿安电气科技有限公司 Auxiliary assembly is cup jointed to cable protection pipe
CN116799710B (en) * 2023-08-23 2023-11-03 河北雄胜鸿安电气科技有限公司 Auxiliary assembly is cup jointed to cable protection pipe

Similar Documents

Publication Publication Date Title
KR102335560B1 (en) Ground installations for electric supply pole
KR100709571B1 (en) Cable protecting unit of an apartment house
US5838078A (en) Apparatus and systems that interface to facilities and equipment that provide temporary electric utilities to construction sites
KR100909263B1 (en) Underground distribution line of draw in and out box
KR101995975B1 (en) Earth plate of electric supply poles
DE60131370T2 (en) TEST CONNECTION FOR PART DISCHARGING DETECTION, PART DISCHARGE DETECTOR AND METHOD FOR DETECTING PARTIAL DISCHARGES ON A POWER CABLE
WO2019034292A1 (en) Charging station and method for installing a charging station
EP2279892A2 (en) Charging socket for charging an electric car
CN103259215A (en) Telescopic insulation rod device
KR102236030B1 (en) Ground installations for electric supply pole
US4242533A (en) Test station apparatus
Gouda Environmental impacts on underground power distribution
KR100752694B1 (en) Underground power cable
US6321679B1 (en) Combination line marker and test station
JP7005025B2 (en) Installation device for pipeline materials of buried electric circuit equipment
KR100775849B1 (en) Ground plate for electric pole
KR101124965B1 (en) Integral ground manhole structure
CN207098568U (en) A kind of side fills immersion high-tension cable branch equipment
KR100904384B1 (en) Connection apparatus for power-transmission line of transformer substation
KR100908672B1 (en) Underground electroic line of pipe
US3287566A (en) Housing for underground distribution apparatus
EP0976880B1 (en) Method and device for installing multiple house service connections
CA3090926A1 (en) Integrated access box
CN206432673U (en) Annular ground magazine
FI81216C (en) Installation arrangement for a separator device

Legal Events

Date Code Title Description
GRNT Written decision to grant