KR100836215B1 - Under ground laied pipe - Google Patents

Under ground laied pipe Download PDF

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Publication number
KR100836215B1
KR100836215B1 KR1020080007116A KR20080007116A KR100836215B1 KR 100836215 B1 KR100836215 B1 KR 100836215B1 KR 1020080007116 A KR1020080007116 A KR 1020080007116A KR 20080007116 A KR20080007116 A KR 20080007116A KR 100836215 B1 KR100836215 B1 KR 100836215B1
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South Korea
Prior art keywords
space
underground
pressure
pipe
buried
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KR1020080007116A
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Korean (ko)
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정기현
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(합)동양엔지니어링
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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
    • H02G9/00—Installations of electric cables or lines in or on the ground or water
    • H02G9/06—Installations of electric cables or lines in or on the ground or water in underground tubes or conduits; Tubes or conduits therefor
    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
    • F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
    • F16L1/06—Accessories therefor, e.g. anchors
    • F16L1/11—Accessories therefor, e.g. anchors for the detection or protection of pipes in the ground
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H01B7/24—Devices affording localised protection against mechanical force or pressure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/32—Insulated conductors or cables characterised by their form with arrangements for indicating defects, e.g. breaks or leaks
    • H01B7/326—Insulated conductors or cables characterised by their form with arrangements for indicating defects, e.g. breaks or leaks comprising pressure sensing means
    • 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
    • H02G9/00—Installations of electric cables or lines in or on the ground or water
    • H02G9/02—Installations of electric cables or lines in or on the ground or water laid directly in or on the ground, river-bed or sea-bottom; Coverings therefor, e.g. tile
    • H02G9/025—Coverings therefor, e.g. tile

Abstract

An underground laying construction of an underground electric wire for power distribution is provided to monitor a damage of a laid pipe by sensing lowering of pressure in a space when cracks of the laid pipe are generated. An underground laying construction of an underground electric wire for power distribution is configured by connecting a plurality of laid pipes(P) and burying the pipes under the ground. The underground laying construction protects underground electric wires installed therein. The laid pipes include a pipe body(10), a plurality of flange parts(11), an elastic out-pipe(20), a plurality of air pressure sensors(30), control units(40), and a plurality of checks valves(50). The air pressure sensors measure pressure in a space(21). The control units are connected to the air pressure sensors. The check valves allow the pressure in the space to be maintained.

Description

배전용 지중전선의 매설구조물{Under ground laied pipe}Underground laied pipes for underground cables for distribution

본 발명은 매설관에 가해지는 압력과, 매설관의 손상여부를 신속히 파악할 수 있도록 된 배전용 지중전선의 매설구조물에 관한 것이다.The present invention relates to a buried structure of an underground cable for distribution, which can quickly determine the pressure applied to the buried pipe and whether the buried pipe is damaged.

일반적으로, 배전용 지중전선은 도 1에 도시한 바와 같은 매설구조물의 내부에 설치되어, 외부와 차단되도록 지중에 매설된다.In general, the underground cable for power distribution is installed inside the buried structure as shown in FIG. 1, and is buried underground to be cut off from the outside.

상기 매설구조물은 콘크리트재로 구성된 다수개의 매설관(P)을 길게 연결되하여 지중(2)에 매설하여 이루어진 것으로, 내부에 설치되는 지중전선(1) 등의 지중설비가 흙의 압력이나 지중(2)으로 스며든 우수 또는 지하수 및 기타 오염물에 의해 손상되는 것을 방지하는 기능을 한다.The buried structure is made by embedding a plurality of buried pipes (P) made of concrete material in the ground (2) long, the underground facilities such as underground wire (1) installed inside the earth pressure or soil ( 2) It prevents damage by rainwater or groundwater and other contaminants that soak into.

그런데, 이러한 매설관(P)은 지중(2)에 매입설치되기 때문에, 주위의 흙에 의해 가해지는 압력이나, 차량 주행 또는 공사시 발생되는 진동 등에 의해 크랙이 발생되거나 일부가 깨지는 손상이 발생될 수 있는 문제점이 있었다.However, since the buried pipe (P) is buried in the ground (2), the cracks or damages are broken due to the pressure applied by the surrounding soil, the vibration generated during the vehicle running or construction, etc. There was a problem that could be.

특히, 매설관(P)에 가해지는 압력이 크게 증가될 경우, 매설관(P)이 손상될 개연성이 매우 높아지게 되므로, 매설관(P)에 작용되는 압력과 매설관(P)의 손상여 부를 신속하게 감시할 수 있는 배전용 지중전선의 매설구조물이 필요하게 되었다.In particular, when the pressure applied to the buried pipe (P) is greatly increased, the probability of damaging the buried pipe (P) becomes very high, so whether the pressure applied to the buried pipe (P) and whether the buried pipe (P) is damaged or not There is a need for underground structures for distribution lines that can be quickly monitored.

본 발명은 상기의 문제점을 해결하기 위한 것으로서, 매설관에 가해지는 압력변화와, 크랙 등과 같은 매설관의 손상발생을 실시간으로 감지할 수 있도록 된 배전용 지중전선의 매설구조물을 제공함에 그 목적이 있다.The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a buried structure of an underground cable for distribution, which is capable of detecting in real time the occurrence of damage to a buried pipe such as a change in pressure applied to the buried pipe and cracks. have.

상기한 목적을 달성하기 위한 본 발명은, 다수개의 매설관(P)을 길게 연결하여 지중(2)에 매설하여 이루어지며, 내부에 설치되는 지중전선(1) 등을 보호하는 배전용 지중전선의 매설구조물에 있어서, The present invention for achieving the above object is made by embedding in the underground (2) by connecting a plurality of buried pipe (P) long, of the underground wire for distribution to protect the underground wire (1) installed therein In the buried structure,

상기 매설관(P)은, 외주면이 기밀하게 표면처리된 콘크리트재질의 관본체(10)와; 상기 관본체(10)의 외주면에 관본체(10)의 길이방향으로 일정하게 상호 이격도록 구비되며 둘레면에는 삽입홈(13)이 형성된 복수개의 플랜지부(11)와; 원통형으로 구성되며 내주면에는 플랜지부(11)의 삽입홈(13)에 기밀하게 끼워지는 복수개의 결합돌기(22)가 형성되어 상기 플랜지부(11)의 외부에 기밀하게 끼워지도록 배치되어 관본체(10)의 외주면과의 사이에 상호 연통되지 않는 복수개의 공간부(21)를 형성하는 탄성재질의 외통체(20)와; 각 공간부(21)에 연결되어 공간부(21) 내부의 압력을 측정하는 복수개의 공압센서(30)와; 상기 공압센서(30)에 연결되는 제어유닛(40)과; 각 공간부(21)에 연결되어 공간부(21) 내부의 압력을 일정압력 이하로 유지하는 복수개의 체크밸브(50)를 더 포함하는 것을 특징으로 하는 배전용 지중전선의 매설구조물이 제공된다.The buried pipe (P), the outer circumferential surface of the tube body 10 of the concrete material hermetically sealed; A plurality of flange portions 11 provided on the outer circumferential surface of the tube body 10 so as to be spaced apart from each other in the longitudinal direction of the tube body 10 and having an insertion groove 13 formed on a circumferential surface thereof; It is formed in a cylindrical shape and a plurality of engaging projections 22 are formed on the inner circumferential surface of the flange portion 11 to be hermetically fitted, and are arranged to be hermetically fitted to the outside of the flange portion 11. An outer cylindrical body 20 formed of an elastic material forming a plurality of space portions 21 which are not in communication with each other with the outer peripheral surface of 10); A plurality of pneumatic sensors 30 connected to the respective space parts 21 to measure pressure in the space part 21; A control unit 40 connected to the pneumatic sensor 30; The buried structure of the underground wire for distribution is further provided, further comprising a plurality of check valves (50) connected to each space portion (21) to maintain the pressure within the space portion (21) below a predetermined pressure.

본 발명에 따른 배전용 지중전선의 매설구조물은 매설관(P) 둘레부의 흙에 의해 압력이 작용되면 외통체(20)가 가압되어 변형되므로, 공압센서(40)로 공간부(21) 내부의 압력변화를 측정하여 매설관(P)에 가해지는 압력을 측정할 수 있으며, 매설관(P)에 크랙이 발생될 경우 공간부(21) 내부의 압력이 저하되므로, 이를 감지하여 매설관(P)의 손상을 실시간으로 감시할 수 있는 장점이 있다.The buried structure of the underground cable for power distribution according to the present invention is deformed by pressurizing the outer cylinder 20 when the pressure is applied by the soil around the buried pipe (P), inside the space 21 by the pneumatic sensor 40 The pressure applied to the buried pipe P may be measured by measuring the pressure change, and if a crack occurs in the buried pipe P, the pressure inside the space 21 is lowered. ) Has the advantage of monitoring the damage in real time.

이하, 본 발명을 첨부된 예시도면에 의거하여 상세히 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

도 2내지 도 4에 의하면, 본 발명에 따른 배전용 지중전선의 매설구조물은 다수개의 매설관(P)을 길게 연결하여 지중(2)에 매설하여 이루어지며, 내부에 설치되는 지중전선(1) 등을 보호하는 것으로, 2 to 4, the buried structure of the underground wire for distribution according to the present invention is made by embedding in the underground (2) by connecting a plurality of buried pipe (P) long, underground wire (1) installed inside In protecting the back,

상기 매설관(P)은, 외주면이 기밀하게 표면처리된 콘크리트재질의 관본체(10)와; 상기 관본체(10)의 외주면에 구비된 복수개의 플랜지부(11)와; 원통형으로 구성되어 상기 플랜지부(11)의 외부에 기밀하게 끼워지도록 배치되어 관본체(10)의 외주면과의 사이에 상호 연통되지 않는 복수개의 공간부(21)를 형성하는 탄성재질의 외통체(20)와; 각 공간부(21)에 연결되어 공간부(21) 내부의 압력을 측정하는 복수개의 공압센서(30)와; 상기 공압센서(30)에 연결되는 제어유닛(40)과; 각 공간부(21)에 연결되어 공간부(21) 내부의 압력을 일정압력 이하로 유지하는 복수개의 체크밸브(50)로 이루어진다.The buried pipe (P), the outer circumferential surface of the tube body 10 of the concrete material hermetically sealed; A plurality of flange portions 11 provided on an outer circumferential surface of the tube body 10; An outer cylindrical body made of a cylindrical material and arranged to be hermetically fitted to the outside of the flange portion 11 to form a plurality of space portions 21 which are not in communication with the outer circumferential surface of the tube body 10 ( 20); A plurality of pneumatic sensors 30 connected to the respective space parts 21 to measure pressure in the space part 21; A control unit 40 connected to the pneumatic sensor 30; It is connected to each space portion 21 is composed of a plurality of check valve 50 to maintain the pressure inside the space portion 21 to a predetermined pressure or less.

이를 자세히 설명하면, 상기 관본체(10)는 콘크리트를 원통형으로 성형하여 제작되며, 외주면은 기밀하게 표면처리되어, 공간부(21) 내부의 공기가 누출되지 않도록 구성된다.In detail, the tube body 10 is manufactured by molding concrete into a cylindrical shape, and an outer circumferential surface thereof is airtightly surfaced so that the air inside the space 21 is not leaked.

상기 플랜지부(11)는 관본체(10)의 길이방향으로 상호 이격도록 상기 관본체(10)의 외주면에 일체로 구비되며, 둘레면에는 삽입홈(13)이 각각 형성된 것으로, 상기 외통체(20)를 지지함과 동시에, 공간부(21)를 상호 연통되지 않는 다수개의 구역으로 구획하는 기능을 한다. 이때, 각각의 플랜지부(11)는 일정간격 이격되도록 배치되어, 각 공간부(21)가 상호 동일한 내부체적을 갖도록 구획한다.The flange portion 11 is integrally provided on the outer circumferential surface of the tube body 10 so as to be spaced apart from each other in the longitudinal direction of the tube body 10, insert grooves 13 are formed in the circumferential surface, respectively, the outer cylinder ( At the same time as supporting 20, the space portion 21 serves to partition into a plurality of zones which are not in communication with each other. At this time, each flange portion 11 is arranged to be spaced apart by a predetermined interval, and partitions so that each space portion 21 has the same internal volume to each other.

상기 외통체(20)는 내경이 플랜지부(11)의 외경과 동일하게 이루어지며, 내주면에는 플랜지부(11)의 삽입홈(13)에 기밀하게 끼워지는 복수개의 결합돌기(22)가 형성되어, 결합돌기(22)가 삽입홈(13)에 삽입되므로써, 공간부(21)를 복수개의 구역으로 기밀하게 구획하여, 각 공간부(21) 내부의 공기가 외부 또는 다른 공간부(21)로 누출되지 않도록 한다. 이때, 상기 외통체(20)는 외압이 작용되면 탄성적으로 변형되면서 쉽게 손상되지 않는 합성고무 등의 재질로 구성하는 것이 바람직하다. The outer cylinder 20 has an inner diameter the same as the outer diameter of the flange portion 11, the inner peripheral surface is formed with a plurality of engaging projections 22 to be airtightly fitted in the insertion groove 13 of the flange portion (11) By inserting the engaging protrusion 22 into the insertion groove 13, the space 21 is hermetically divided into a plurality of zones, and the air inside each space 21 is transferred to the outside or the other space 21. Do not leak. At this time, the outer cylinder 20 is preferably made of a material such as synthetic rubber that is elastically deformed and not easily damaged when an external pressure is applied.

상기 공압센서(30)는 상기 외통체(20)를 관통하여 단부가 각각의 공간부(21) 내부로 돌출되도록 고정설치되어, 각각의 공간부(21) 내부의 압력을 측정하여 측정 된 압력데이터를 제어유닛(40)으로 전송하는 기능을 한다.The pneumatic sensor 30 is fixed so that the end penetrates through the outer cylinder body 20 and protrudes into each of the spaces 21, and the pressure data measured by measuring the pressure inside each of the spaces 21. The function to transmit to the control unit 40.

상기 제어유닛(40)은 공압센서(30)에서 출력되는 압력데이터를 수신하여, 공간부(21) 내부의 압력을 지속적으로 감시하는 것으로, 유선 또는 무선으로 관리소에 연결되어, 공압센서(30)에서 측정된 공간부(21)의 압력데이터를 지속적으로 관리소로 전송함과 동시에, 각 공간부(21) 내부에 압력이 낮아질 경우, 관본체(10)에 크랙 등의 손상이 발생된 것으로 판단하여 경고신호를 출력하는 기능을 한다.The control unit 40 receives pressure data output from the pneumatic sensor 30, and continuously monitors the pressure in the space 21, is connected to the management station by wire or wireless, pneumatic sensor 30 While continuously transmitting the pressure data of the space portion 21 measured to the management station, and when the pressure is lowered in each of the space 21, it is determined that the damage such as cracks in the tube body 10 occurred It outputs a warning signal.

상기 체크밸브(50)는 도 3에 도시한 바와 같이, 내부에 통공(52a) 및 밸브시트(52b)가 구비된 밸브체(52)와, 상기 밸브시트(52b)에 안착되는 볼형상의 밸브체(53)와, 상기 밸브체(53)에 연결되어 밸브체(53)가 밸브시트(52b)에 밀착되도록 가압하는 스프링(54)으로 구성되는 것으로, 관본체(10)의 내부면에 설치되어, 관본체(10)의 둘레부에 형성된 복수개의 관통공(51)을 통해 각각의 공간부(21)에 연결된다.As illustrated in FIG. 3, the check valve 50 includes a valve body 52 having a through hole 52a and a valve seat 52b therein, and a ball-shaped valve seated on the valve seat 52b. It is composed of a sieve 53 and a spring 54 connected to the valve body 53 to press the valve body 53 to be in close contact with the valve seat 52b, which is installed on the inner surface of the tube body 10. Thus, the plurality of through holes 51 formed in the periphery of the tube body 10 are connected to the respective space portions 21.

이와같이 구성된 배전용 지중전선의 매설구조물의 작용을 설명하면 다음과 같다.Referring to the operation of the buried structure of the distribution underground cable constructed as follows.

우선, 다수개의 매설관(P)을 길게 연결하여 지중(2)에 매설하면, 도 5에 도시한 바와 같이, 흙의 압력에 의해 외통체(20)가 가압되어 변형되며, 이에따라 공간부(21) 내부의 공기가 가압되어 압력이 높아지게 된다. 따라서, 상기 공압센서(30)에 의해 측정된 각 공간부(21) 내부의 공기압력데이터를 관리소로 전송하므로써, 관리소에서는 각 매설관(P)에 가해지는 압력이 적정수준인지를 확인할 수 있다.First, when a plurality of buried pipes (P) is connected long and embedded in the ground (2), as shown in Figure 5, the outer cylinder 20 is pressed and deformed by the pressure of the soil, according to the space portion 21 ) The air inside is pressurized to increase the pressure. Therefore, by transmitting the air pressure data inside each space portion 21 measured by the pneumatic sensor 30 to the management station, the management station can confirm whether the pressure applied to each buried pipe P is at an appropriate level.

이때, 흙의 압력에 의해 공간부(21) 내부의 압력이 과도하게 상승될 경우, 상기 체크밸브(50)가 개방되어 공간부(21) 내부의 공기를 배출하므로써, 공간부(21) 내부의 압력이 일정압력 이상으로 상승되지 않도록 조절한다.At this time, when the pressure in the space 21 is excessively increased due to the pressure of the soil, the check valve 50 is opened to discharge the air in the space 21, thereby to release the air inside the space 21. Adjust the pressure so that it does not rise above a certain pressure.

그리고, 압력상승이나 외부에서 가해지는 진동에 의해 관본체(10)에 크랙이 발생되거나 일부가 깨어질 경우, 가압된 공간부(21) 내부의 공기가 관본체(10)의 내부로 유출되어 공간부(21) 내부의 압력이 급속하게 떨어지게 되며, 이에따라 상기 제어유닛(40)은 관리소에 경보신호를 출력하여, 관리소에 근무하는 관리자가 매설관(P)의 손상을 확인할 수 있다.In addition, when a crack is generated or a part of the tube body 10 is broken due to a pressure increase or vibration applied from the outside, the air inside the pressurized space 21 flows out into the inside of the tube body 10 and is spaced. The pressure inside the unit 21 drops rapidly, and accordingly, the control unit 40 outputs an alarm signal to the station so that the manager working in the station can check the damage of the buried pipe P.

이와같이 구성된 배전용 지중전선의 매설구조물은 매설관(P)을 지하에 매설함에 따라 흙에 의해 가해지는 압력을 실시간으로 측정하여 확인할 수 있으므로, 매설관(P)에 과도한 압력이 가해지는 지 여부를 확인하여, 매설관(P)의 매설깊이 등을 조절할 수 있으며, 매설관(P)에 과도한 압력이 가해져 손상되는 것을 방지할 수 있는 장점이 있다.The buried structure of the distribution underground cable constructed in this way can be checked in real time by measuring the pressure exerted by the soil as the buried pipe (P) is buried underground, it is determined whether excessive pressure is applied to the buried pipe (P) By checking, the buried depth of the buried pipe (P), etc. can be adjusted, there is an advantage that can be prevented from being damaged by applying excessive pressure to the buried pipe (P).

또한, 의도하지 않게 발생되는 압력 또는 진동에 의해 매설관(P)이 손상될 경우, 이를 신속하게 파악하여 후속조치를 취할 수 있으므로, 매설관(P)이 손상됨에 따라, 매설관(P) 내부에 설치되는 지중전선(1) 등에 피해가 발생되는 것을 방지할 수 있는 장점이 있다.In addition, when the buried pipe (P) is damaged by unintentionally generated pressure or vibration, it is possible to quickly grasp this and take follow-up measures, and as the buried pipe (P) is damaged, the buried pipe (P) inside There is an advantage that can prevent damage to the underground wire (1) installed in the.

특히, 상기 공간부(21)는 각 플랜지부(11)에 의해 여러개로 나뉘어지므로, 상기 공압센서(30)를 이용하여 매설관(P)의 각 부에 가해지는 압력을 세밀하게 감시할 수 있는 장점이 있다.In particular, since the space portion 21 is divided into several by each flange portion 11, it is possible to monitor the pressure applied to each part of the buried pipe (P) in detail by using the pneumatic sensor (30). There is an advantage.

또한, 각 공간부(21)에는 체크밸브(50)가 구비되어, 공간부(21) 내부의 압력이 과도하게 상승되면 공간부(21) 내부의 공기를 배출하여 압력이 일정수준을 유지하도록 하므로써, 공간부(21) 내부의 압력이 과도하게 상승되어, 외통체(20)와 플랜지부(11) 사이의 결합부에 틈이 발생되거나, 외통체(20)가 압력을 이기지 못하고 손상되는 것을 방지할 수 있다.In addition, each of the space 21 is provided with a check valve 50, if the pressure in the space 21 is excessively increased by discharging the air in the space 21 to maintain the pressure to a certain level The pressure inside the space portion 21 is excessively increased, so that a gap is generated in the engaging portion between the outer cylinder 20 and the flange 11, or the outer cylinder 20 is prevented from being damaged without overcoming the pressure. can do.

도 1은 종래의 배전용 지중전선의 매설구조물을 도시한 참고도,1 is a reference diagram showing a buried structure of a conventional underground cable for distribution;

도 2는 본 발명에 따른 배전용 지중전선의 매설구조물을 도시한 사시도,2 is a perspective view showing a buried structure of a distribution underground cable according to the present invention;

도 3은 본 발명에 따른 배전용 지중전선의 매설구조물을 도시한 측단면 구성도,Figure 3 is a side cross-sectional view showing a buried structure of a distribution underground cable according to the present invention,

도 4는 본 발명에 따른 배전용 지중전선의 매설구조물의 정단면도,4 is a front sectional view of the buried structure of the underground wire for distribution according to the present invention,

도 5는 본 발명에 따른 배전용 지중전선의 매설구조물의 작용을 설명하기 위한 참고도이다.5 is a reference diagram for explaining the operation of the buried structure of the underground cable for power distribution according to the present invention.

Claims (1)

다수개의 매설관(P)을 길게 연결하여 지중(2)에 매설하여 이루어지며, 내부에 설치되는 지중전선(1) 등을 보호하는 배전용 지중전선의 매설구조물에 있어서, In the buried structure of the distribution underground cable to protect the underground wire (1), etc. installed inside the underground (2) by connecting a plurality of buried pipe (P) long, 상기 매설관(P)은, The buried pipe P, 외주면이 기밀하게 표면처리된 콘크리트재질의 관본체(10)와;An outer circumferential surface of the tube body 10 of a concrete material hermetically treated; 상기 관본체(10)의 외주면에 관본체(10)의 길이방향으로 일정하게 상호 이격도록 구비되며 둘레면에는 삽입홈(13)이 형성된 복수개의 플랜지부(11)와; A plurality of flange portions 11 provided on the outer circumferential surface of the tube body 10 so as to be spaced apart from each other in the longitudinal direction of the tube body 10 and having an insertion groove 13 formed on a circumferential surface thereof; 원통형으로 구성되며 내주면에는 플랜지부(11)의 삽입홈(13)에 기밀하게 끼워지는 복수개의 결합돌기(22)가 형성되어 상기 플랜지부(11)의 외부에 기밀하게 끼워지도록 배치되어 관본체(10)의 외주면과의 사이에 상호 연통되지 않는 복수개의 공간부(21)를 형성하는 탄성재질의 외통체(20)와;It is formed in a cylindrical shape and a plurality of engaging projections 22 are formed on the inner circumferential surface of the flange portion 11 to be hermetically fitted, and are arranged to be hermetically fitted to the outside of the flange portion 11. An outer cylindrical body 20 formed of an elastic material forming a plurality of space portions 21 which are not in communication with each other with the outer peripheral surface of 10); 각 공간부(21)에 연결되어 공간부(21) 내부의 압력을 측정하는 복수개의 공압센서(30)와;A plurality of pneumatic sensors 30 connected to the respective space parts 21 to measure pressure in the space part 21; 상기 공압센서(30)에 연결되는 제어유닛(40)과;A control unit 40 connected to the pneumatic sensor 30; 각 공간부(21)에 연결되어 공간부(21) 내부의 압력을 일정압력 이하로 유지하는 복수개의 체크밸브(50)를 더 포함하는 것을 특징으로 하는 배전용 지중전선의 매설구조물.A buried structure of a distribution line underground cable further comprises a plurality of check valves (50) connected to each space portion (21) to maintain a pressure within the space portion (21) below a predetermined pressure.
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101082905B1 (en) 2011-09-15 2011-11-11 노재호 Insulation pipe for protect of underground electroic line
KR101091116B1 (en) 2011-09-16 2011-12-09 노상도 Protection pipe for insulation mounting an underground line
KR101113815B1 (en) 2011-09-19 2012-04-02 (주)지형이엔지 Protection pipe for insulation mounting an underground line
KR101338920B1 (en) 2013-06-04 2013-12-10 노상도 Protection pipe for insulation mounting an underground line
KR101666175B1 (en) 2016-03-24 2016-10-14 김순자 Connecting structure for preventing separation of subterranean line
KR101854903B1 (en) 2017-02-28 2018-06-14 유정남 Installation structure for underground power distribution line
KR102081909B1 (en) * 2019-07-31 2020-02-26 대화전설(주) Protection device for underground transmission line

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Publication number Priority date Publication date Assignee Title
KR20040002059A (en) * 2002-06-29 2004-01-07 주식회사 케이티 Propulsion pipe

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040002059A (en) * 2002-06-29 2004-01-07 주식회사 케이티 Propulsion pipe

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101082905B1 (en) 2011-09-15 2011-11-11 노재호 Insulation pipe for protect of underground electroic line
KR101091116B1 (en) 2011-09-16 2011-12-09 노상도 Protection pipe for insulation mounting an underground line
KR101113815B1 (en) 2011-09-19 2012-04-02 (주)지형이엔지 Protection pipe for insulation mounting an underground line
KR101338920B1 (en) 2013-06-04 2013-12-10 노상도 Protection pipe for insulation mounting an underground line
KR101666175B1 (en) 2016-03-24 2016-10-14 김순자 Connecting structure for preventing separation of subterranean line
KR101854903B1 (en) 2017-02-28 2018-06-14 유정남 Installation structure for underground power distribution line
KR102081909B1 (en) * 2019-07-31 2020-02-26 대화전설(주) Protection device for underground transmission line

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