KR102344299B1 - Structure of Insulating End Cap for Indirect Live Wire Work - Google Patents

Structure of Insulating End Cap for Indirect Live Wire Work Download PDF

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KR102344299B1
KR102344299B1 KR1020200069645A KR20200069645A KR102344299B1 KR 102344299 B1 KR102344299 B1 KR 102344299B1 KR 1020200069645 A KR1020200069645 A KR 1020200069645A KR 20200069645 A KR20200069645 A KR 20200069645A KR 102344299 B1 KR102344299 B1 KR 102344299B1
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South Korea
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self
wire
indirect live
lead wire
coil
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KR1020200069645A
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Korean (ko)
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KR20210152758A (en
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고병관
경인수
김주완
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한국전력공사
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B17/00—Insulators or insulating bodies characterised by their form
    • H01B17/38—Fittings, e.g. caps; Fastenings therefor
    • H01B17/40—Cementless fittings
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
    • F16F1/04—Wound springs
    • F16F1/12—Attachments or mountings
    • F16F1/123—Attachments or mountings characterised by the ends of the spring being specially adapted, e.g. to form an eye for engagement with a radial insert
    • 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
    • H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
    • H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
    • 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
    • H02G15/00—Cable fittings
    • H02G15/02—Cable terminations
    • H02G15/04—Cable-end sealings
    • H02G15/043—Cable-end sealings with end caps, e.g. sleeve closed at one end

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Catching Or Destruction (AREA)
  • Cable Accessories (AREA)

Abstract

본 발명의 간접활선용 전선종단 절연캡 구조체는, 간접활선용 스마트 스틱을 이용하여 자기수축형 접속재의 내부에 결합된 당김용 코일을 분리시킬 때 자기수축형 접속재가 자기수축에 의해 데드앤드커버의 외부로 돌출된 리드선의 충전부를 감싸도록 밀착 고정해 주기 때문에 리드선의 충전부를 편리하고 안전하게 절연 작업을 수행할 수 있고, 작업 후 시간이 경과되더라도 자기수축형 접속재가 탈락하는 것을 방지할 수 있으므로 리드선의 충전부와 조류 등의 접촉을 사전에 차단하여 안전사고를 미연에 예방할 수 있는 것임. The wire termination insulation cap structure for indirect live wire of the present invention uses a smart stick for indirect live wire to separate the pulling coil coupled to the inside of the self-shrinkable connector. Because the lead wire protrudes to the outside and the live part of the lead wire is tightly secured to cover it, it is possible to conveniently and safely insulate the lead wire's live part. It can prevent safety accidents in advance by blocking contact between the charging part and birds in advance.

Description

간접활선용 전선종단 절연캡 구조체{Structure of Insulating End Cap for Indirect Live Wire Work}Structure of Insulating End Cap for Indirect Live Wire Work

본 발명은 간접활선용 전선종단 절연캡 구조체에 관한 것으로서, 더욱 상세하게는 특고압 전력선 말단 처리후 데드앤드커버의 외부로 돌출된 리드선(전선종단)의 충전부 노출을 방지하는 간접활선용 전선종단 절연캡 구조체에 관한 것이다.The present invention relates to a wire termination insulation cap structure for indirect live wire, and more particularly, wire termination insulation for indirect live wire that prevents exposure of the charging part of the lead wire (wire termination) protruding to the outside of the dead end cover after the end of the extra high voltage power line is treated. It relates to a cap structure.

일반적으로 배전선로의 유지 보수공사는 전력 공급을 안정적으로 유지하기 위하여 무정전 활선 상태에서 작업을 하고 있으며, 이러한 배전선로의 활선 작업은 크게 직접활선 작업과 간접활선 작업으로 나뉘어져 있다.In general, maintenance work of distribution lines is performed in uninterrupted live wire state to maintain stable power supply, and such live wire work is largely divided into direct live work and indirect live work.

직접활선 작업은 고압용 고무 장갑 등의 절연용 보호구를 착용한 작업자가 통전 중의 피복 전선을 직접 취급하여 배전공사를 하는 작업 방법이며, 반면에 간접활선 작업은 간접활선 공구를 이용하여 작업자가 통전 중의 피복 전선을 직접 접촉하는 일 없이 배전 공사를 하는 작업 방법이다.Direct live work is a work method in which a worker wearing an insulating protective device such as high-pressure rubber gloves directly handles the insulated wire while energized to perform power distribution work. It is a work method that performs distribution work without direct contact with the insulated wires.

직접활선 작업에서는 작업자가 절연 장갑을 끼고 22.9kV의 특고압 전선을 접촉하여 작업을 수행하게 되므로 작업시간은 짧게 소요되나 작업자가 감전사고 등의 위험에 직접 노출되며, 작업 부주의로 인한 인명피해가 적지 않게 발생하여 왔다.In direct live wire work, the worker wears insulated gloves and contacts the 22.9kV extra-high voltage wire, so the work time is short, but the worker is directly exposed to the risk of electric shock, etc. has occurred unexpectedly.

따라서, 직접활선 작업은 많은 주의를 요구하고 작업자의 부담이 매우 크다. 이에 따라 최근 작업 환경의 개선 관점에서 직접활선 작업 방법에서 간접활선 작업 방법으로 전환이 진행되고 있는 실정이다.Therefore, the direct live wire work requires a lot of attention and the burden on the operator is very high. Accordingly, in view of the improvement of the work environment, the conversion from the direct live work method to the indirect live work method is in progress.

간접활선은 별도의 공구(일명, 스마트 스틱)를 이용하여 작업을 수행하기 때문에 작업자의 안전성을 확보할 수 있으나 작업 시간에 많이 소요되는 단점이 있다.Since the indirect live wire uses a separate tool (aka, smart stick) to perform the work, the safety of the worker can be secured, but it has a disadvantage in that it takes a lot of work time.

기설 특고압 전주를 철거하거나 새로 신설하여 특고압 전선 말단처리를 할 때 추후 선로 연장을 위하여 구출선을 20cm 이상 데드앤드 커버 밖으로 나오게 말단처리를 한다.When dismantling an existing special high voltage electric pole or newly constructing a new special high voltage electric pole to end the special high voltage cable, the rescue line should be extended beyond the dead end cover by 20cm or more to extend the line later.

그래서, 제안된 종래에는 도 1과 같이 전신주의 경완금(100)에 현수애자(110)가 연결되면서, 현수애자(110)에 데드앤드커버(120)를 통해 전력선(130)의 충전부를 보호하는 데드앤드클램프(140)가 연결된 고압 및 특고압 배전선로에 있어서, 전력선(130)의 전선종단에 형성되어 데드앤드커버(120)를 통해 외부로 돌출되는 리드선(135)을 절연캡(200)로 씌워서 절연시키는 구성으로 이루어져 있다.So, according to the proposed prior art, while the suspension insulator 110 is connected to the light pole 100 of the telephone pole as shown in FIG. In the high-voltage and extra-high voltage distribution line to which the dead-and-clamp 140 is connected, the lead wire 135 formed at the end of the electric wire of the power line 130 and protruding to the outside through the dead-end cover 120 is used as an insulation cap (200). It consists of a cover and insulate it.

그러나, 이와 같이 구성된 종래의 데드앤드커버(120)의 밖으로 20㎝ 이상 돌출되는 리드선(135)의 전선종단에 절연캡(200)을 씌운 후 이중절연 자기융착테이핑 처리작업을 하는데, 이 작업 과정을 간접활선 기자재 부재로 모두 직접활선으로만 작업하기 때문에 직접활선시 작업자가 통전 중의 피복 전선을 직접 취급하여 배전공사를 하여야 하므로 감전사고 등의 위험에 직접 노출되는 문제점이 있으며, 작업 후 시간이 경과되면 이중절연 자기융착 테이프의 노후에 따라 절연캡(200)이 탈락하여 조류 접촉 등의 순간 고장 또는 도급자 안전사고를 발생시킨다는 문제점이 있었다. However, after putting the insulating cap 200 on the end of the lead wire 135 that protrudes more than 20 cm outside of the conventional dead end cover 120 configured in this way, a double insulation self-welding taping process is performed. Since all indirect live wires work only with direct live wires due to the absence of equipment and materials for indirect live wires, there is a problem in that workers are directly exposed to the risk of electric shock, etc. According to the aging of the double-insulated self-adhesive tape, the insulating cap 200 falls off, causing a momentary failure such as contact with birds or a safety accident for the contractor.

대한민국 등록실용신안공보 제20-0303372호(2003.01.24.)Republic of Korea Registered Utility Model Publication No. 20-0303372 (2003.01.24.)

본 발명의 목적은 기존의 제반 문제점들을 감안하여 이를 해결하고자 제안된 것으로서, 스마트 스틱을 이용한 간접활선 공법에서 데드앤드커버의 외부로 돌출된 리드선의 충전부를 편리하고 안전하게 절연 작업을 수행할 수 있는 간접활선용 전선종단 절연캡 구조체를 제공하는데 있다.The purpose of the present invention is to solve the problems in consideration of the existing problems. Indirect live wiring method using a smart stick that can conveniently and safely insulate the charging part of the lead wire protruding to the outside of the dead end cover in an indirect live wiring method using a smart stick An object of the present invention is to provide a wire termination insulation cap structure for a live wire.

상기 기술적 과제를 해결하기 위한 본 발명의 실시예에 따른 간접활선용 전선종단 절연캡 구조체는, 데드앤드커버의 외부로 돌출된 리드선의 충전부를 감싸주는 절연캡에 있어서,
상기 절연캡은, 하부가 개구된 원통 형상으로 형성된 절연재질의 자기수축형 접속재; 및 상기 자기수축형 접속재의 내주에 상기 자기수축형 접속재의 직경을 팽창시키도록 스프링 형태로 감겨지게 결합되고, 일측이 간접활선용 스마트 스틱을 걸려 당겨지도록 상기 자기수축형 접속재의 하부로 돌출되는 고리가 형성된 연성(軟性) 금속재질의 당김용 코일;을 구성하되,
상기 자기수축형 접속재는 상기 당김용 코일과 결합시 팽창되어 있다가 상기 당김용 코일과 분리시 자기수축에 의해 수축되면서 상기 리드선의 충전부를 감싸주고,
상기 당김용 코일은 상기 자기수축형 접속재로부터 분리될 때 코일스프링 형태의 정렬이 흐트러지는 것을 특징으로 한다.In an insulation cap for enclosing a charging part of a lead wire protruding to the outside of a dead end cover, the insulation cap structure for terminating a wire for an indirect live wire according to an embodiment of the present invention for solving the above technical problem,
The insulating cap may include: a self-shrinkable connection member made of an insulating material formed in a cylindrical shape with an open bottom; and a ring that is wound around the inner periphery of the self-contracting connector to expand the diameter of the self-contracting connector, and protrudes from the bottom of the self-contracting connector so that one side catches the smart stick for indirect live wire and pulls it. Consists of a pulling coil made of a flexible (軟性) metal material formed with
The self-shrinkable connecting material is expanded when combined with the pulling coil, and is contracted by magnetic contraction when separated from the pulling coil to surround the charging part of the lead wire,
When the pulling coil is separated from the self-contracting type connecting material, it is characterized in that the alignment of the coil spring shape is disturbed.

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본 발명의 간접활선용 전선종단 절연캡 구조체는 간접활선용 스마트 스틱을 이용하여 자기수축형 접속재의 내부에 결합된 당김용 코일을 분리시킬 때 자기수축형 접속재가 자기수축에 의해 데드앤드커버의 외부로 돌출된 리드선의 충전부를 감싸도록 밀착 고정해 주기 때문에 리드선의 충전부를 편리하고 안전하게 절연 작업을 수행할 수 있고, 작업 후 시간이 경과되더라도 자기수축형 접속재가 탈락하는 것을 방지할 수 있으므로 리드선의 충전부와 조류 등의 접촉을 사전에 차단하여 안전사고를 미연에 예방할 수 있는 효과가 있다.The wire termination insulation cap structure for indirect live wire of the present invention uses a smart stick for indirect live wire to separate the pulling coil coupled to the inside of the self-shrinkable connector. Because it tightly fixes the lead wire protruding part to surround the live part, it is possible to conveniently and safely insulate the lead wire's live part, and it can prevent the self-shrinkable connector from falling off even if time elapses after the operation. It has the effect of preventing safety accidents in advance by blocking contact with birds, etc.

도 1은 종래에 따른 간접활선용 전선종단 절연캡이 적용된 구성도,
도 2는 본 발명에 따른 간접활선용 전선종단 절연캡의 구성도,
도 3은 본 발명에 따른 간접활선용 전선종단 절연캡의 설치 전 구성도,
도 4는 본 발명에 따른 간접활선용 전선종단 절연캡의 설치 후 구성도이다. 1 is a configuration diagram to which a conventional indirect live wire termination insulation cap is applied;
2 is a block diagram of an insulating cap for terminating an indirect live wire according to the present invention;
3 is a configuration diagram before installation of the wire termination insulation cap for indirect live wire according to the present invention;
4 is a configuration diagram after installation of the wire termination insulation cap for indirect live wire according to the present invention.

본 발명을 충분히 이해하기 위해서 본 발명의 바람직한 실시예를 첨부 도면 도 2 내지 도 4를 참조하여 설명한다. 본 발명의 실시예는 여러 가지 형태로 변형될 수 있으며, 본 발명의 범위가 아래에서 상세히 설명하는 실시예로 한정되는 것으로 해석되어서는 안 된다. 따라서 도면에서의 요소의 형상 등은 보다 명확한 설명을 강조하기 위해서 과장되어 표현될 수 있다. 각 도면에서 동일한 구성은 동일한 참조부호로 도시한 경우가 있음을 유의하여야 한다. 본 발명의 요지를 불필요하게 흐릴 수 있다고 판단되는 공지 기능 및 구성에 대한 상세한 기술은 생략된다.In order to fully understand the present invention, preferred embodiments of the present invention will be described with reference to the accompanying drawings Figs. Embodiments of the present invention may be modified in various forms, and the scope of the present invention should not be construed as being limited to the embodiments described in detail below. Accordingly, the shapes of elements in the drawings may be exaggerated to emphasize a clearer description. It should be noted that the same configuration in each drawing is sometimes illustrated with the same reference numerals. Detailed descriptions of well-known functions and configurations determined to unnecessarily obscure the gist of the present invention will be omitted.

이하, 본 발명의 실시예에 대해 첨부도면을 참조하여 상세히 설명한다.Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

본 발명의 구성에 대하여 종래의 구성과 동일한 구성에 대해서는 동일명칭 및 동일부호를 부여하고 중복 설명은 생략한다. With respect to the configuration of the present invention, the same name and the same reference numeral are given to the same configuration as the conventional configuration, and redundant description is omitted.

도 2를 참고하면, 본 발명의 실시예에 따른 간접활선용 전선종단 절연캡(이하, "절연캡"으로 약칭함)(300)은 하부가 개구된 원통 형상의 자기수축형 접속재(310)와, 상기 자기수축형 접속재(310)의 내주에 결합되어 자기수축형 접속재(310)의 직경을 팽창시키도록 일측에 고리(322)가 형성된 당김용 코일(320)로 이루어져 있다. Referring to FIG. 2 , a wire termination insulation cap for indirect live wire according to an embodiment of the present invention (hereinafter, abbreviated as “insulation cap”) 300 includes a cylindrical self-contracting connector 310 with an open bottom and , it is coupled to the inner periphery of the self-contracting connection member 310 and consists of a pulling coil 320 having a ring 322 formed on one side to expand the diameter of the self-contracting connection member 310 .

즉, 상기 자기수축형 접속재(310)는 자기수축이 가능한 절연재질로 이루어져 있다. That is, the self-shrinkable connecting material 310 is made of an insulating material capable of self-shrinkage.

상기 자기수축형 접속재(310)는 상기 당김용 코일(320)과 결합시 팽창되어 있다가 당김용 코일(320)과 분리시 자기수축에 의해 수축되어진다. The self-shrinkable connecting material 310 expands when coupled to the pulling coil 320 and contracts due to self-contraction when separated from the pulling coil 320 .

상기 당김용 코일(320)은 상기 자기수축형 접속재(310)내에 결합시 코일스프링 형태로 감겨져 있다가 자기수축형 접속재(310)로부터 분리될 때 코일스프링의 정렬이 흐트러지도록 연성(軟性) 금속재질로 이루어져 있다. The pulling coil 320 is wound in the form of a coil spring when coupled to the self-contracting connector 310, and is made of a flexible metal material so that the alignment of the coil spring is disturbed when separated from the self-contracting connector 310. consists of

이 처럼, 본 발명의 간접활선용 전선종단 절연캡(300)은 자기수축형 접속재(310)의 내주면에 맞닿도록 당김용 코일(320)이 결합되는 구조이기 때문에 도 3과 같이 데드앤드커버(120)로부터 돌출된 리드선(135)에 절연캡(300)을 씌우면, 당김용 코일(320)의 지탱력에 의해 자기수축형 접속재(310)가 팽창된 상태로 유지하게 된다. In this way, since the indirect live wire termination insulation cap 300 of the present invention has a structure in which the pulling coil 320 is coupled to abut against the inner circumferential surface of the self-contracting connector 310, the dead end cover 120 as shown in FIG. ), when the insulation cap 300 is placed on the lead wire 135 protruding from the lead wire 135, the self-contracting type connecting material 310 is maintained in an expanded state by the holding force of the pulling coil 320 .

이때, 상기 자기수축형 접속재(310)의 외부로 돌출된 당김용 코일(320)의 고리(322)에 간접활선용 스마트 스틱(400)의 후크를 걸어서 하부로 잡아 당기면, 도 4와 같이 자기수축형 접속재(310)의 내부에서 코일스프링 형태로 감겨져 있던 당김용 코일(320)의 정렬이 흐트러지면서 상기 자기수축형 접속재(310)의 외부로 분리됨과 동시에 자기수축형 접속재(310)를 하부로 끌어 당기면서 펼쳐주게 된다. At this time, when the hook of the smart stick 400 for indirect live wire is hung on the hook 322 of the pulling coil 320 protruding to the outside of the self-contracting type connector 310 and pulled downward, as shown in FIG. As the alignment of the pulling coil 320 wound in the form of a coil spring inside the type connection member 310 is disturbed, it is separated to the outside of the self-contraction type connection material 310 and at the same time, the self-contraction type connection material 310 is pulled downward. Pull and unfold

그리고 상기 자기수축형 접속재(310)는 당김용 코일(320)과 분리되는 순간 자기수축에 의해 수축되면서 리드선(135)의 충전부를 감싸주도록 긴밀하게 밀착됨으로써 리드선(135)로부터 자기수축형 접속재(310)가 빠지지 않게 견고히 고정할 수 있고, 절연캡(300)을 철거 시에는 간접활선용 피박기를 이용하여 간단하게 피박하여 철거할 수 있는 편리성이 있다. And the self-shrinkable connector 310 is contracted by magnetic contraction at the moment it is separated from the pulling coil 320 and closely adheres to surround the charging part of the lead wire 135 , so that the self-shrinkable connector 310 from the lead wire 135 . ) can be firmly fixed so that it does not fall out, and when the insulation cap 300 is removed, it is convenient to simply peel and remove it using a peeler for indirect live wires.

따라서, 본 발명의 절연캡(300)은 간접활선용 스마트 스틱(400)을 이용하여 자기수축형 접속재(310)의 내부에 결합된 당김용 코일(320)을 분리시킬 때 자기수축형 접속재(310)가 자기수축에 의해 데드앤드커버(120)의 외부로 돌출된 리드선(135)의 충전부를 감싸도록 밀착 고정해 주기 때문에 리드선(135)의 충전부를 편리하고 안전하게 절연 작업을 수행할 수 있고, 작업 후 시간이 경과되더라도 자기수축형 접속재(310)가 탈락하는 것을 방지할 수 있으므로 리드선(135)의 충전부와 조류 등의 접촉을 사전에 차단하여 안전사고를 미연에 예방할 수 있는 것이다. Accordingly, the insulating cap 300 of the present invention uses the smart stick 400 for indirect live wire to separate the self-contracting connector 310 when the pulling coil 320 coupled to the inside of the self-contracting connector 310 is separated. ) close to and fix the charging part of the lead wire 135 protruding to the outside of the dead end cover 120 by self-contraction, so it is possible to conveniently and safely insulate the charging part of the lead wire 135 and work Since it is possible to prevent the self-shrinkable connecting material 310 from falling off even after a lapse of time, it is possible to prevent a safety accident in advance by blocking contact between the charging part of the lead wire 135 and the algae in advance.

한편, 본 발명은 상술한 실시예로만 한정되는 것이 아니라 본 발명의 요지를 벗어나지 않는 범위내에서 수정 및 변형하여 실시할 수 있고, 그러한 수정 및 변형이 가해진 기술사상 역시 이하의 특허청구범위에 속하는 것으로 보아야 한다.On the other hand, the present invention is not limited to the above-described embodiments, but can be implemented with modifications and variations without departing from the gist of the present invention, and the technical idea to which such modifications and variations are applied also falls within the scope of the following claims. have to see

120 : 데드앤드커버 135 : 리드선
300 : 절연캡 310 : 자기수축형 접속재
320 : 당김용 코일 322 : 고리
400 : 스마트 스틱120: dead end cover 135: lead wire
300: insulation cap 310: self-shrinkable connection material
320: pulling coil 322: ring
400 : smart stick

Claims (6)

데드앤드커버(120)의 외부로 돌출된 리드선(135)의 충전부를 감싸주는 절연캡(300)에 있어서,
상기 절연캡(300)은,
하부가 개구된 원통 형상으로 형성된 절연재질의 자기수축형 접속재(310); 및
상기 자기수축형 접속재(310)의 내주에 상기 자기수축형 접속재(310)의 직경을 팽창시키도록 스프링 형태로 감겨지게 결합되고, 일측이 간접활선용 스마트 스틱(400)을 걸려 당겨지도록 상기 자기수축형 접속재(310)의 하부로 돌출되는 고리(322)가 형성된 연성(軟性) 금속재질의 당김용 코일(320);을 구성하되,
상기 자기수축형 접속재(310)는 상기 당김용 코일(320)과 결합시 팽창되어 있다가 상기 당김용 코일(320)과 분리시 자기수축에 의해 수축되면서 상기 리드선(135)의 충전부를 감싸주고,
상기 당김용 코일(320)은 상기 자기수축형 접속재(310)로부터 분리될 때 코일스프링 형태의 정렬이 흐트러지는 것을 특징으로 하는 간접활선용 전선종단 절연캡 구조체.In the insulating cap 300 surrounding the charging part of the lead wire 135 protruding to the outside of the dead end cover 120,
The insulating cap 300 is,
A self-contracting connection member 310 made of an insulating material formed in a cylindrical shape with an open lower portion; and
It is coupled to the inner periphery of the self-contracting type connection member 310 to expand the diameter of the self-contraction type connection member 310 in the form of a spring, and one side of the self-contracting type connection material 310 is self-contracted so that the smart stick 400 for indirect live wire is caught and pulled. A coil 320 for pulling of a flexible metal material having a ring 322 protruding to the lower part of the type connection member 310 is formed;
The self-shrinkable connector 310 is expanded when combined with the pulling coil 320, and is contracted by magnetic contraction when separated from the pulling coil 320 to surround the charging part of the lead wire 135,
When the pulling coil 320 is separated from the self-shrinkable connector 310, the coil spring shape alignment is disturbed. 삭제delete 삭제delete 삭제delete 삭제delete 삭제delete
KR1020200069645A 2020-06-09 2020-06-09 Structure of Insulating End Cap for Indirect Live Wire Work KR102344299B1 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200303372Y1 (en) * 2002-10-28 2003-02-06 한국전력공사 Device for insulating the wire end of dead end clamp
JP2003165159A (en) * 2001-11-28 2003-06-10 Three M Innovative Properties Co Tearable core member and normal temperature shrinkable pipe device having the same
JP2011508581A (en) 2007-12-20 2011-03-10 スリーエム イノベイティブ プロパティズ カンパニー Cold shrinkable article and method of using cold shrinkable article
KR200479231Y1 (en) * 2015-07-27 2016-01-07 이승덕 Wire connector

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003165159A (en) * 2001-11-28 2003-06-10 Three M Innovative Properties Co Tearable core member and normal temperature shrinkable pipe device having the same
KR200303372Y1 (en) * 2002-10-28 2003-02-06 한국전력공사 Device for insulating the wire end of dead end clamp
JP2011508581A (en) 2007-12-20 2011-03-10 スリーエム イノベイティブ プロパティズ カンパニー Cold shrinkable article and method of using cold shrinkable article
KR200479231Y1 (en) * 2015-07-27 2016-01-07 이승덕 Wire connector

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