KR20140006533A - Fastening structure of insulator for insulation joint box of ultra high voltage power cable - Google Patents

Fastening structure of insulator for insulation joint box of ultra high voltage power cable Download PDF

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Publication number
KR20140006533A
KR20140006533A KR1020120073718A KR20120073718A KR20140006533A KR 20140006533 A KR20140006533 A KR 20140006533A KR 1020120073718 A KR1020120073718 A KR 1020120073718A KR 20120073718 A KR20120073718 A KR 20120073718A KR 20140006533 A KR20140006533 A KR 20140006533A
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South Korea
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high voltage
tube
ultra
insulating
fastening
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KR1020120073718A
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Korean (ko)
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KR101482926B1 (en
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지상현
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(주)원컨덕터
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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
    • H02G15/00—Cable fittings
    • H02G15/08—Cable junctions
    • H02G15/18—Cable junctions protected by sleeves, e.g. for communication cable
    • H02G15/182—Cable junctions protected by sleeves, e.g. for communication cable held in expanded condition in radial direction prior to installation
    • 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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B39/00—Locking of screws, bolts or nuts
    • F16B39/02—Locking of screws, bolts or nuts in which the locking takes place after screwing down
    • F16B39/12—Locking of screws, bolts or nuts in which the locking takes place after screwing down by means of locknuts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/10—Sockets for co-operation with pins or blades
    • H01R13/11—Resilient sockets
    • H01R13/113—Resilient sockets co-operating with pins or blades having a rectangular transverse section
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/53—Bases or cases for heavy duty; Bases or cases for high voltage with means for preventing corona or arcing
    • 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
    • H02G15/08—Cable junctions
    • H02G15/18—Cable junctions protected by sleeves, e.g. for communication cable
    • H02G15/196—Cable junctions protected by sleeves, e.g. for communication cable having lapped insulation

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

Abstract

The present invention relates to a structure for fastening insulators of an insulating connection box of an ultra-high voltage power cable and, more particularly to a structure for fastening insulators of an insulating connection box of an ultra-high voltage power cable, allowing the easy fastening through the fastening structure between the insulators of synthetic resins and the protection pipes and more stability. The structure for fastening insulators of an insulating connection box of an ultra-high voltage power cable according to the present invention is the structure of fastening protection pipes of copper materials connected to the internal protection of an insulating connection box of an ultra-high voltage power cable and the metal sheath of the ultra-high voltage power cable and insulators of synthetic resins for insulting the sheath by being mediated between the protection pipes, wherein the structure may be characterized in that the insulators have one or more pop nuts formed in the external side thereof; the protection pipes have a hole in the location corresponding to the pop nuts; the pop nuts and the hole are located to correspond to each other in the state that the protection pipes and the insulators are engaged; washers are fit into the pop nuts; and that nuts are tab fastened.

Description

초고압 전력케이블 절연접속함의 절연통 체결 구조{FASTENING STRUCTURE OF INSULATOR FOR INSULATION JOINT BOX OF ULTRA HIGH VOLTAGE POWER CABLE}FASTENING STRUCTURE OF INSULATOR FOR INSULATION JOINT BOX OF ULTRA HIGH VOLTAGE POWER CABLE}

본 발명은 초고압 전력케이블 절연접속함의 절연통 체결구조에 관한 것으로서, 더욱 상세하게는 합성수지재의 절연통과 보호관간의 체결 구조를 통해 보다 쉽게 체결하고 보다 안정성을 갖도록 하는 초고압 전력케이블 절연접속함의 절연통 체결 구조에 관한 것이다.
The present invention relates to an insulating cylinder fastening structure of an ultra-high voltage power cable insulated junction box, and more particularly, to an insulated tube fastening structure of an ultra-high voltage cable insulated junction box to be more easily fastened and more stable through a fastening structure between an insulating tube and a protective tube of a synthetic resin material. It is about.

초고압 전력케이블 특히 지중케이블의 경우 발전소와 변전소간에 설치되는데 총 설치 길이에 따라 구간 구간마다 전력케이블간의 접속이 반드시 필요하다.In the case of ultra-high voltage power cable, especially underground cable, it is installed between power plant and substation. Connection of power cable is necessary every section interval according to total installation length.

일반적으로 전력케이블 간의 접속은 양쪽 전력케이블에 중심에 내장된 도체를 노출시키고 양쪽 전력케이블의 도체를 서로 전기적으로 연결시키는 슬리브라는 부품을 통해 연결시킨 후 송배전되는 전력용량에 따라 절연파괴가 발생되지 않도록 각종의 절연재료 에폭시, 절연지, 고무 등으로 이루어진 절연부품들이 삽입된다. Generally, the connection between the power cables is achieved by exposing the conductor embedded in the center of both power cables, connecting the conductors of both power cables through a sleeve, which is electrically connected to each other, Insulating materials made of various kinds of insulating material epoxy, insulating paper, rubber, etc. are inserted.

접속이 완료된 후 최종적으로 접속부분을 보호하며 전력케이블의 금속시스와 같은 역할을 하는 보호관이 양쪽에 접속된다.After the connection is completed, a protective pipe that acts like a metal sheath of the power cable is finally connected to both sides.

이러한 보호관은 한쪽은 전력케이블의 금속시스와 납연공 작업에 의해 서로 연결되고, 다른 쪽은 보호관끼리 서로 접속된다.These protective tubes are connected to each other by a metal sheath of the electric power cable and lead-leaving work, and the other protective tubes are connected to each other.

접속함 중에서도 중간 부분을 접속하는 중간 접속함에는 단지 초고압 케이블만을 접속하는 보통접속함과 케이블 좌우의 쉬스 상호간을 절연하고 쉬스 전류에 따른 손실을 저감하여 송전용량의 증대를 꾀할 목적으로 사용하는 절연접속함으로 구분된다.Among the junction boxes, the intermediate junction box connecting the middle part is an insulated connection used for the purpose of increasing the transmission capacity by insulating the normal junction box connecting only the ultra-high voltage cable and the sheaths on the left and right sides of the cable and reducing the losses due to the sheath current. It is divided into

절연접속함의 경우는 좌우측의 보호관과 이들의 쉬스 상호간을 절연하기 위한 절연통(Insulator)이 매개되어 조립된다.In the case of an insulated junction box, the protection tubes on the left and right sides and an insulator for insulating the sheaths from each other are assembled.

절연통은 예전에는 에폭시재를 성형시켜 사용하였지만, 무게 및 비용 절감의 차원에서 현재는 합성수지재의 성형품을 주로 사용한다.Insulating cylinders were used by molding epoxy materials in the past, but in order to reduce weight and cost, molded articles of synthetic resin materials are mainly used.

합성수지재로 이루어진 절연통은 그 두께가 얇고, 보호관의 두께 역시 원자재가 상승으로 인해 그 두께가 점점 얇아지는 추세에 있다.The thickness of the insulating tube made of synthetic resin is thin, and the thickness of the protective tube is also getting thinner due to the increase of raw materials.

도 1은 절연통과 보호관이 체결된 절연접속함의 일예를 간략히 도시한 것이다.1 briefly illustrates an example of an insulation junction box in which an insulation passage and a protection tube are fastened.

절연접속함(110)의 보호관(130a, 130b)는 좌우 한 쌍으로 구성되며, 제1 보호관(130a)은 좌측 전력케이블(120a)에 삽입되고 제2 보호관(130b)은 우측 전력케이블(120a)에 삽입된다. 보호관(130a, 130b)은 동재질로 이루어진다.The protective tubes 130a and 130b of the insulating junction box 110 are formed in a pair of left and right, and the first protective tube 130a is inserted into the left power cable 120a and the second protective tube 130b is connected to the right power cable 120a. Is inserted into The protective tubes 130a and 130b are made of the same material.

보호관(130a, 130b) 사이에는 쉬스 절연을 목적으로 하는 절연통(140)이 매개되어 체결된다. Between the protective tubes (130a, 130b) is fastened through the insulating tube 140 for the purpose of sheath insulation.

절연통(140)은 예전의 에폭시 성형품이 아닌 합성수지재로 이루어지며, 보호관(130a, 130b)에는 나사(150)를 체결하기 위한 홀들이 형성되고 절연통(140)에는 나사탭이 형성되어 나사(150) 결합에 의해 보호관(130a, 130b)과 절연통(140)의 체결을 구현하였다. The insulating tube 140 is made of a synthetic resin material, not an epoxy molded product, holes for fastening the screw 150 are formed in the protective tubes 130a and 130b, and screw tabs are formed in the insulating tube 140 to form a screw ( 150) the coupling of the protective tubes (130a, 130b) and the insulating tube 140 by coupling.

하지만, 절연통(140)이 에폭시 성형품이 아닌 합성수지재로 변경되면서 그 두께가 얇아지고 에폭시 성형물에 비해 강도가 연하여 나사(150)에 의한 체결 강도가 그 만큼 저하되는 문제가 있게 되었다. However, as the insulating tube 140 is changed to a synthetic resin material rather than an epoxy molded product, the thickness thereof becomes thinner and the strength is softer than that of the epoxy molded product, so that the fastening strength by the screw 150 is reduced by that much.

또한 합성수지재에 나사탭이 형성되므로 연재질인 합성수지재로 인해 나사탭 부분이 쉽게 어그러지는 문제가 발생되기도 한다.In addition, since the screw tab is formed in the synthetic resin material, the problem of the screw tab portion is easily bent due to the synthetic resin material.

또한 현장 포설시 장시간의 전력 로딩에 따라 나사(150) 체결부의 강도가 저하되는 문제 역시 대두가 되었다.
In addition, the problem that the strength of the fastening portion of the screw 150 is lowered in accordance with the long-term power loading during the site installation.

상술한 종래의 문제점을 해결하기 위한 본 발명의 목적은, 초고압 케이블용 절연접속함의 합성수지재 절연통과 보호관의 체결를 강화하기 위해 다양한 형태의 체결 구조가 제안된다.SUMMARY OF THE INVENTION An object of the present invention for solving the above-described problems is proposed a variety of types of fastening structure to reinforce the fastening of the synthetic resin insulating tube and the protective tube of the insulating junction box for the ultra-high voltage cable.

또한, 포설된 초고압 케이블은 장시간 로딩되는 상태로 남으로므로 절연통과 보호관의 체결 구조를 강화하여 접속함의 신뢰성을 높이기 위함에 있다.
In addition, since the installed ultra-high voltage cable remains loaded for a long time, it is to enhance the reliability of the junction box by strengthening the fastening structure of the insulation tube and the protective tube.

상술한 과제를 해결하기 위한 본 발명에 따른 초고압 전력케이블 절연접속함의 절연통 체결 구조는, 초고압 전력케이블 절연 접속함의 내부 보호 및 상기 초고압 전력케이블의 금속쉬스와 연결되는 동재질의 보호관과 상기 보호관들 사이에 매개되어 쉬스를 절연시키는 합성수지재의 절연통을 체결하는 구조로서, 상기 절연통의 외측에는 하나 이상의 팝너트(POP NUT)가 삽입되어 형성되며, 상기 보호관에는 상기 팝너트와 대응되는 위치에 홀이 형성되고, 상기 보호관과 절연통이 맞물린 상태에서 상기 팝너트와 상기 홀이 서로 대응되어 위치되며, 상기 팝너트측으로 와셔가 끼워지고 너트가 탭 체결되는 구조를 갖을 수 있다.Insulating tube fastening structure of the ultra-high voltage power cable insulated junction box according to the present invention for solving the above problems, the inner protection of the ultra-high voltage cable insulated junction box and the protective tube of the same material and the metal sheath connected to the metal sheath of the ultra-high voltage cable. It is a structure for fastening the insulating cylinder of the synthetic resin material to insulate the sheath interposed therebetween, wherein at least one pop nut (PUT NUT) is inserted into the outer side of the insulating cylinder, the protective tube is formed in a hole corresponding to the pop nut The popnut and the hole are positioned to correspond to each other in a state where the protective tube and the insulating tube are engaged with each other, and a washer is fitted to the popnut and a nut is tab-tapped.

여기서, 상기 팝너트의 길이는 상기 절연통의 두께 보다 작게 형성될 수 있다.Here, the length of the pop nut may be formed smaller than the thickness of the insulating cylinder.

여기서, 상기 팝너트의 길이는 상기 절연통의 두께와 동일하게 형성될 수 있다.Here, the length of the pop nut may be formed to be the same as the thickness of the insulating cylinder.

여기서, 상기 팝너트의 길이는 상기 절연통의 두께와 동일하게 형성될 수 있고, 상기 팝너트의 일단에는 상기 절연통의 내측면에 맞닿는 팝너트 머리부가 형성될 수 있다.Here, the length of the pop nut may be formed to be the same as the thickness of the insulating cylinder, and one end of the pop nut may be formed with a pop nut head portion in contact with the inner surface of the insulating cylinder.

또한, 본 발명에 따른 초고압 전력케이블 절연접속함의 절연통 체결 구조는, 초고압 전력케이블 절연 접속함의 내부 보호 및 상기 초고압 전력케이블의 금속쉬스와 연결되는 동재질의 보호관과 상기 보호관들 사이에 매개되어 쉬스를 절연시키는 합성수지재의 절연통을 체결하는 구조로서, 상기 절연통의 외측에는 하나 이상의 유동핀홀이 형성되고, 상기 절연통의 양단에는 하나 이상의 'ㄱ'자 형태의 고정핀홈이 형성되며, 상기 보호관의 외측으로는 상기 유동핀홀과 대응될 수 있는 위치에 유동핀이 삽입될 수 있는 홀이 형성되고, 상기 고정핀홈에 체결되는 고정핀이 땜납되어 형성되고, 상기 보호관과 절연통이 상기 고정핀과 고정핀홈을 통해 서로 맞물린 상태에서 상기 유동핀을 상기 홀 및 유동핀홀에 끼움방식으로 체결되는 구조를 갖을 수 있다.
In addition, the insulating tube fastening structure of the ultra-high voltage cable insulated junction box according to the present invention, the inner protection of the ultra-high voltage cable insulated junction box and the sheath of the same material connected between the metal sheath of the ultra-high voltage cable and the sheath is mediated between the sheath. A structure for fastening the insulating cylinder of the synthetic resin material to insulate the one or more floating pin holes are formed on the outer side of the insulating cylinder, at least one end of the insulating tube is formed with a fixed pin groove of the 'b' shape, the protective tube of A hole into which the floating pin can be inserted is formed at a position corresponding to the floating pin hole on the outside thereof, and a fixing pin fastened to the fixing pin groove is formed by soldering, and the protective tube and the insulating tube are fixed to the fixing pin. It may have a structure in which the floating pin is fastened to the hole and the floating pin hole by engaging with each other through a pin groove. .

상술한 본 발명의 구성에 따르면, 초고압 케이블용 절연접속함의 합성수지재 절연통과 보호관의 체결를 강화하기 위해 다양한 형태의 체결 구조가 제안되며, 이러한 다양한 체결 구조에 기해 포설된 초고압 케이블의 장시간 로딩에 따른 접속함의 신뢰성을 높일 수 있게 된다.
According to the above-described configuration of the present invention, various types of fastening structures are proposed to strengthen the fastening of the synthetic resin insulating tube and the protective tube of the insulated junction box for the ultra high voltage cable, and the connection according to the long time loading of the super high voltage cable laid based on the various fastening structures It is possible to increase the reliability of the ship.

도 1은 종래의 초고압 케이블 절연접속함의 절연통과 보호관의 체결 구조를 보인 도면이다.
도 2는 본 발명에 따른 초고압 케이블 절연접속함의 절연통과 보호관의 체결 구조를 보인 도면이다.
도 3은 본 발명에 따른 초고압 전력케이블 절연접속함의 절연통 체결 구조의 제1 실시예이다.
도 4는 본 발명에 따른 초고압 전력케이블 절연접속함의 절연통 체결 구조의 제2 실시예이다.
도 5는 본 발명에 따른 초고압 전력케이블 절연접속함의 절연통 체결 구조의 제3 실시예이다.
도 6은 본 발명에 따른 초고압 전력케이블 절연접속함의 절연통 체결 구조의 제4 실시예이다.1 is a view showing the fastening structure of the insulating tube and the protective tube of the conventional high voltage cable insulated junction box.
2 is a view showing the fastening structure of the insulating tube and the protective tube of the ultra-high voltage cable insulated junction box according to the present invention.
Figure 3 is a first embodiment of the insulating cylinder fastening structure of the ultra-high voltage power cable insulated junction box according to the present invention.
Figure 4 is a second embodiment of the insulating cylinder fastening structure of the ultra-high voltage power cable insulated junction box according to the present invention.
Figure 5 is a third embodiment of the insulating cylinder fastening structure of the ultra-high voltage power cable insulated junction box according to the present invention.
Figure 6 is a fourth embodiment of the insulating cylinder fastening structure of the ultra-high voltage power cable insulated junction box according to the present invention.

이하, 첨부된 도면을 참조하여 본 발명에 따른 초고압 전력케이블 절연접속함의 절연통 체결 구조 및 작용효과를 살펴본다.Hereinafter, with reference to the accompanying drawings looks at the insulation cylinder fastening structure and the effect of the ultra-high voltage power cable insulated junction box according to the present invention.

도 2는 본 발명에 따른 초고압 케이블 절연접속함의 절연통과 보호관의 체결 구조를 보인 도면이다.2 is a view showing the fastening structure of the insulating tube and the protective tube of the ultra-high voltage cable insulated junction box according to the present invention.

초고압 케이블용 절연접속함(210)은 양측의 케이블을 도체끼리 접속후 절연보강용으로 각종 절연부품을 접속하고 그 외주에 내부 보호관으로서 좌우 한 쌍의 보호관(220a, 220b)이 절연통(230)을 매개로 하여 체결되는 구조를 갖는다. 보호관(220a, 220b)이나 절연통(230)은 대략적으로 원통형 구조를 갖는다.Insulated junction box 210 for the ultra-high voltage cable is connected to the conductors of both sides, and then connects various insulated parts for insulation reinforcement, and a pair of left and right protective tubes 220a and 220b as an inner protective tube on the outer periphery thereof. It has a structure that is fastened through. The protective tubes 220a and 220b or the insulating tube 230 have a substantially cylindrical structure.

보호관(220a, 220b)은 기계적 강도를 고려하여 금속재질로 이루어지며, 특히 전도성이 우수한 동재질의 동관이나 동판을 말아서 형성한 동파이프로 이루어진다.The protective tubes 220a and 220b are made of a metal material in consideration of mechanical strength, and are particularly made of copper pipes formed by rolling copper tubes or copper plates having excellent conductivity.

절연통(230)는 절연재로 이루어지며, 특히 최근에는 가볍고 가격이 저렴은 합성수지재를 관 형태로 제작하여 사용된다.Insulation barrel 230 is made of an insulating material, and in recent years is used to manufacture a synthetic resin material in the form of a tube, which is light and inexpensive.

보호관(220a, 220b)과 절연통(230)은 플랜지없이 볼트에 의해 체결되는 구조를 갖는다. 특히, 보호관(220a, 220b)은 금속재질이고 절연통(230)은 합성수지재이므로 합성수지재와 금속재를 겹쳐서 나사 및 너트 어셈플리(240) 등으로 체결할 때 나사머리 부분의 반대측에는 너트 등이 체결될 수 없는 구조(보호관이나 절연통이 원통형이기 때문)이므로 보호관과 절연통의 체결 구조의 강도를 높이는 것이 중요하다.The protective tubes 220a and 220b and the insulating tube 230 have a structure that is fastened by a bolt without a flange. Particularly, since the protective tubes 220a and 220b are made of metal and the insulating tube 230 is made of synthetic resin, the nut and the like are fastened to the opposite side of the screw head when the synthetic resin and the metal are overlapped and fastened with the screw and nut assembly 240. It is important to increase the strength of the fastening structure of the protective tube and the insulating tube because it cannot be constructed (because the protective tube or the insulating tube is cylindrical).

따라서, 이하 도 3 내지 도 6를 통해 구체적으로 보호관과 절연통의 체결 구조를 개시하도록 한다.Therefore, the coupling structure of the protective tube and the insulated tube will be specifically described with reference to FIGS. 3 to 6 below.

도 3은 본 발명에 따른 초고압 전력케이블 절연접속함의 절연통 체결 구조의 제1 실시예이다.Figure 3 is a first embodiment of the insulating cylinder fastening structure of the ultra-high voltage power cable insulated junction box according to the present invention.

도시된 바와 같이, 본 발명에 따른 초고압 전력케이블 절연접속함의 절연통 체결 구조는 팝너트(360)를 삽입한 절연통(330)에 좌우측 보호관(320a, 320b)를 일치시켜 와셔(350)를 끼운 상태에서 나사(340)로 팝너트(360)와 나사결합시키는 구조를 갖는다.As shown, the insulating tube fastening structure of the ultra-high voltage power cable insulated junction box according to the present invention is fitted with the washer 350 by matching the left and right protective tubes (320a, 320b) to the insulated cylinder 330 into which the pop nut 360 is inserted. It has a structure that is screwed with the pop nut 360 with the screw 340 in the state.

이러한 체결구조는 기존의 합성수지재인 절연통 자체에 나사탭을 형성시켜 나사나 볼트로 조립하는 구조에 비해 기계적인 강도를 보강할 수 있게 된다.This fastening structure is able to reinforce the mechanical strength compared to the structure of assembling with screws or bolts by forming a screw tab on the insulating barrel itself, which is a conventional synthetic resin material.

특히, 제1 실시예에서 팝너트(360)의 길이(L)는 절연통(330)의 두께(T)에 비해 작게 형성되고 바람직하게는 약 1/2T 정도의 길이를 갖도록 절연통(330) 외측으로 삽입시킨 구조를 갖는다.In particular, in the first embodiment, the length L of the pop nut 360 is smaller than the thickness T of the insulator 330 and preferably has a length of about 1 / 2T. It has a structure inserted to the outside.

팝너트(360)를 삽입시킨 절연통(330)은 합성수지재에 직접 나사탭을 형성할 때보다 강성면에서 높아질 수 있고, 절연통(330)과 보호관(320a, 320b)과의 체결력을 증대시킬 수 있다.The insulation tube 330 into which the pop nut 360 is inserted may be higher in rigidity than when the screw tab is directly formed in the synthetic resin material, and the clamping force between the insulation tube 330 and the protective tubes 320a and 320b may be increased. Can be.

절연통(330)과 보호관(320a, 320b)의 강도 높은 체결 구조는 초고압 케이블 절연접속함의 접속 품질을 향상시킬 수 있으며, 초고압 케이블 포설시 장기 로딩에 따른 신뢰성을 확보할 수 있다는 면에서 아주 중요한 요소라 할 수 있다.The high-strength structure of the insulation tube 330 and the protective tubes 320a and 320b can improve the connection quality of the ultra-high voltage cable insulated junction box, and it is a very important factor in ensuring the reliability of long-term loading when installing the ultra-high voltage cable. It can be said.

도 4는 본 발명에 따른 초고압 전력케이블 절연접속함의 절연통 체결 구조의 제2 실시예이다.Figure 4 is a second embodiment of the insulating cylinder fastening structure of the ultra-high voltage power cable insulated junction box according to the present invention.

도시된 바와 같이, 본 발명에 따른 초고압 전력케이블 절연접속함의 절연통 체결 구조는 팝너트(460)를 삽입한 절연통(430)에 좌우측 보호관(420a, 420b)를 일치시켜 와셔(450)를 끼운 상태에서 나사(440)로 팝너트(460)와 나사결합시키는 구조를 갖도록 하여 기계적인 강도를 높이게 된다.As shown, the insulating cylinder fastening structure of the ultra-high voltage power cable insulated junction box according to the present invention is fitted with the washer 450 by matching the left and right protective pipes (420a, 420b) to the insulating cylinder 430 into which the pop nut 460 is inserted. In this state, the screw 440 has a structure for screwing the pop nut 460 to increase mechanical strength.

특히, 제2 실시예에서 팝너트(460)의 길이(L)는 절연통(430)의 두께(T)와 동일하게 형성되며, 즉 절연통(430)의 두께(T) 전체에 걸쳐 팝너트(460)가 형성되도록 하면, 위 제1 실시예와 비교하여 나사(440)와 팝너트(460)간의 체결 길이가 더 길어져 상대적으로 기계적 체결 강도를 더 보강할 수 있는 잇점을 갖는다.In particular, in the second embodiment, the length L of the pop nut 460 is formed to be equal to the thickness T of the insulated container 430, that is, the pop nut over the entire thickness T of the insulated container 430. When the 460 is formed, the fastening length between the screw 440 and the pop nut 460 is longer than that of the first embodiment, and thus the mechanical fastening strength can be further reinforced.

도 5는 본 발명에 따른 초고압 전력케이블 절연접속함의 절연통 체결 구조의 제3 실시예이다.Figure 5 is a third embodiment of the insulating cylinder fastening structure of the ultra-high voltage power cable insulated junction box according to the present invention.

도시된 바와 같이, 본 발명에 따른 초고압 전력케이블 절연접속함의 절연통 체결 구조는 팝너트(560)를 삽입한 절연통(530)에 좌우측 보호관(520a, 520b)를 일치시켜 와셔(550)를 끼운 상태에서 나사(540)로 팝너트(560)와 나사결합시키는 구조를 갖도록 하여 기계적인 강도를 높이게 된다.As shown, the insulating cylinder fastening structure of the ultra-high voltage power cable insulated junction box according to the present invention is fitted with the washer 550 by matching the left and right protective pipes (520a, 520b) to the insulated cylinder 530 into which the pop nut 560 is inserted. In this state, the screw 540 is screwed with the pop nut 560 to increase mechanical strength.

특히, 제3 실시예에서 팝너트(560)의 길이(L)는 절연통(550)의 두께(T)와 동일하게 형성되며 절연통(550) 내측으로 팝너트 머리부(560a)가 돌출되도록 형성되고, 즉 절연통(530)의 두께(T) 전체에 걸쳐 팝너트(560)가 형성되면서 팝너트의 머리부(560a)가 절연통(530) 내측표면으로 돌출되어 밀착되도록 형성된다.In particular, in the third embodiment, the length L of the pop nut 560 is formed to be the same as the thickness T of the insulator 550, and the pop nut head 560a protrudes into the insulator 550. That is, the pop nut 560 is formed over the entire thickness T of the insulating tube 530 so that the head portion 560a of the pop nut protrudes to the inner surface of the insulating tube 530 to be in close contact with each other.

이렇게 하면, 위 제1 및 제2 실시예와 비교하여 나사(540)와 팝너트(560)간의 체결 길이가 더 길어지고, 팝너트 머리부(560a)가 절연통(530)의 내측면에 밀착되어 나사(540)의 머리부와 팝너트 머리부(560a)가 양단에서 절연통(530)과 보호관(520a, 520b)을 더욱 견고하게 체결시킴으로 상대적으로 기계적 체결 강도를 더 보강할 수 있는 잇점을 갖는다.In this case, the length of the fastening between the screw 540 and the pop nut 560 is longer than that of the first and second embodiments, and the pop nut head 560a is in close contact with the inner surface of the insulating tube 530. Since the head of the screw 540 and the pop nut head 560a tighten the insulating tube 530 and the protective pipes 520a and 520b at both ends, it is possible to further reinforce the mechanical tightening strength. Have

도 6은 본 발명에 따른 초고압 전력케이블 절연접속함의 절연통 체결 구조의 제4 실시예이다.Figure 6 is a fourth embodiment of the insulating cylinder fastening structure of the ultra-high voltage power cable insulated junction box according to the present invention.

상술한 본 발명의 제1 내지 제3 실시예는 절연통에 팝너트를 삽입시켜 보호관과의 체결력을 증대시킨 체결구조인 반면에 도 6에 도시된 본 발명의 제4 실시예는 핀 고정 방식이 채택된다.The first to third embodiments of the present invention described above have a fastening structure in which a pop nut is inserted into an insulating tube to increase the fastening force with a protective tube, while the fourth embodiment of the present invention shown in FIG. Is adopted.

도 6에 도시된 바와 같이, 절연통(630)은 외측으로 유동핀홀(650)이 다수개 형성되고, 양단측으로 'ㄱ'자 형태의 고정핀홈(660)이 하나 이상 형성된다.As shown in Figure 6, the insulating cylinder 630 is formed with a plurality of floating pin holes 650 to the outside, at least one end of the 'pin' shaped pinned groove 660 is formed.

그리고, 보호관(620a, 620b)의 외측면에는 고정핀홈(670)과 대응될 수 위치에 고정핀(670)이 은납땜되어 형성된다.In addition, the fixing pins 670 are formed on the outer surfaces of the protective tubes 620a and 620b in a position where the fixing pin grooves 670 may correspond.

이 상태에서 절연통(630)의 고정핀홈(660)측으로 보호관(620a, 620b)의 고정핀(670)을 화살표 방향으로 삽입시킨다. 즉, 절연통(630)을 보호관(620a, 620b)에 체결시 고정핀홈(660) 내측으로 고정핀(670)을 수평 삽입시킨 후 절연통(630)을 소정 각도 회전시키면 'ㄱ'자 방향으로 고정핀홈(660)과 고정핀(670)이 체결된다.In this state, the fixing pins 670 of the protective tubes 620a and 620b are inserted in the direction of the arrow toward the fixing pin grooves 660 of the insulating tube 630. That is, when the insulating tube 630 is fastened to the protective pipes 620a and 620b, when the fixing pin 670 is horizontally inserted into the fixing pin groove 660, the insulating tube 630 is rotated by a predetermined angle in the direction of the letter 'a'. The fixing pin groove 660 and the fixing pin 670 are fastened.

이 상태는 절연통(630)과 보호관(620a, 620b)이 서로 맞물린 상태일 뿐 체결력은 없는 상태이다. In this state, the insulating cylinder 630 and the protective pipes 620a and 620b are engaged with each other but have no fastening force.

따라서, 절연통(630)과 보호관(620a, 620b)이 서로 맞물린 상태에서 유동핀(640)을 이용하여 보호관(620a, 620b)의 홀과 일치되는 유동핀홀(650)을 관통시켜 절연통(630)과 보호관(620a, 620b)의 체결력을 보강하게 된다. 유동핀(640)은 바람직하게 끼워맞춤식으로 체결될 수 있을 것이다.Therefore, insulating tube 630 through the flow pin hole 650 corresponding to the holes of the protective tube (620a, 620b) using the flow pin 640 in the state that the insulating tube 630 and the protective tube (620a, 620b) is engaged with each other. ) And the tightening force of the protective tubes (620a, 620b). The floating pin 640 may preferably be fitted in a fit.

유동핀(640)과 유동핀홀(650)만의 체결은 절연통(630)과 보호관(620a, 620)의 체결력에 있어 보호관(620a, 620b) 하중에 위한 체결력 감쇄 문제가 발생할 수 있고, 고정핀(670)과 고정핀홈(660)만의 체결은 절연통(630)과 보호관(620a, 620b)의 맞물림은 가능하지만 체결력은 너무 미약할 수 밖에 없으므로, 유동핀(640)과 유동핀홀(650) 및 고정핀(670)과 고정핀홈(660)은 상호 보완적으로 절연통(630)과 보호관(620a, 620b)의 체결력을 강화시킬 수 있도록 구성된다. The fastening of only the floating pin 640 and the floating pin hole 650 may cause a problem of attenuation of the fastening force for the load of the protective tubes 620a and 620b in the fastening force between the insulating tube 630 and the protective tubes 620a and 620. 670 and the fastening pin groove 660 only can be engaged with the insulating tube 630 and the protective tubes (620a, 620b) but the fastening force is too weak, so the flow pin 640 and the floating pin hole 650 and fixed Pin 670 and the fixing pin groove 660 is configured to reinforce the fastening force of the insulating tube 630 and the protective tubes (620a, 620b) complementarily.

이상 첨부된 도면을 참조하여 본 발명의 바람직한 실시예를 설명하였지만, 상술한 본 발명의 기술적 구성은 본 발명이 속하는 기술 분야의 당업자가 본 발명의 그 기술적 사상이나 필수적 특징을 변경하지 않고서 다른 구체적인 형태로 실시될 수 있다는 것을 이해할 수 있을 것이다. 그러므로 이상에서 기술한 실시예들은 모든 면에서 예시적인 것이며 한정적인 것이 아닌 것으로서 이해되어야 하고, 본 발명의 범위는 상기 상세한 설명보다는 후술하는 특허청구범위에 의하여 나타내어지며, 특허청구범위의 의미 및 범위 그리고 그 등가 개념으로부터 도출되는 모든 변경 또는 변형된 형태가 본 발명의 범위에 포함되는 것으로 해석되어야 한다.
While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, As will be understood by those skilled in the art. Therefore, it should be understood that the above-described embodiments are to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than the foregoing description, It is intended that all changes and modifications derived from the equivalent concept be included within the scope of the present invention.

210 : 절연접속함
220a, 220b, 320a, 320b, 420a, 420b, 520a, 520b, 620a, 620b : 보호관
230, 330, 430, 530, 630 : 절연통 240 : 나사 및 너트 어셈블리
340, 440, 540 : 나사 350, 450, 550 : 와셔
360, 460, 560 : 팝너트 560a : 팝너트 머리부
640 : 유동핀 650 : 유동핀홀
660 : 고정핀홈 670 : 고정핀210: insulated junction box
Protective tube: 220a, 220b, 320a, 320b, 420a, 420b, 520a, 520b, 620a, 620b
230, 330, 430, 530, 630: insulated container 240: screw and nut assembly
340, 440, 540: screw 350, 450, 550: washer
360, 460, 560: Pop nut 560a: Pop nut head
640: floating pin 650: floating pin hole
660: fixing pin groove 670: fixing pin

Claims (5)

초고압 전력케이블 절연 접속함의 내부 보호 및 상기 초고압 전력케이블의 금속쉬스와 연결되는 동재질의 보호관과 상기 보호관들 사이에 매개되어 쉬스를 절연시키는 합성수지재의 절연통을 체결하는 구조로서,
상기 절연통의 외측에는 하나 이상의 팝너트(POP NUT)가 삽입되어 형성되며,
상기 보호관에는 상기 팝너트와 대응되는 위치에 홀이 형성되고,
상기 보호관과 절연통이 맞물린 상태에서 상기 팝너트와 상기 홀이 서로 대응되어 위치되며, 상기 팝너트측으로 와셔가 끼워지고 너트가 탭 체결되는, 초고압 전력케이블 절연접속함의 절연통 체결 구조.An inner protection of the ultra-high voltage cable insulated junction box and a structure of fastening the insulation tube of the synthetic resin material to insulate the sheath between the protective tube of the same material and the sheath connected to the metal sheath of the ultra-high voltage cable,
At least one pop nut (POP NUT) is inserted into an outer side of the insulated container,
The protective tube is formed with a hole corresponding to the pop nut,
The pop nut and the hole are positioned to correspond to each other in the state in which the protective tube and the insulated tube are engaged with each other, the washer is fitted to the pop nut side, the nut is tab-tapped, insulating tube fastening structure of the high voltage cable. 제1항에 있어서,
상기 팝너트의 길이는 상기 절연통의 두께 보다 작게 형성되는, 초고압 전력케이블 절연접속함의 절연통 체결 구조.The method of claim 1,
The length of the pop nut is formed to be smaller than the thickness of the insulating tube, insulating cylinder fastening structure of the high voltage cable insulation junction box. 제1항에 있어서,
상기 팝너트의 길이는 상기 절연통의 두께와 동일하게 형성되는, 초고압 전력케이블 절연접속함의 절연통 체결 구조.The method of claim 1,
The length of the pop nut is formed to be equal to the thickness of the insulated tube, the insulation cylinder fastening structure of the high voltage cable insulation junction box. 제1항에 있어서,
상기 팝너트의 길이는 상기 절연통의 두께와 동일하게 형성되며,
상기 팝너트의 일단에는 상기 절연통의 내측면에 맞닿는 팝너트 머리부가 형성되는, 초고압 전력케이블 절연접속함의 절연통 체결 구조.The method of claim 1,
The length of the pop nut is formed to be the same as the thickness of the insulating tube,
One end of the pop-nut is formed with a pop-nut head that is in contact with the inner surface of the insulated tube, insulating cylinder fastening structure of the ultra-high voltage power cable insulated junction box. 초고압 전력케이블 절연 접속함의 내부 보호 및 상기 초고압 전력케이블의 금속쉬스와 연결되는 동재질의 보호관과 상기 보호관들 사이에 매개되어 쉬스를 절연시키는 합성수지재의 절연통을 체결하는 구조로서,
상기 절연통의 외측에는 하나 이상의 유동핀홀이 형성되고, 상기 절연통의 양단에는 하나 이상의 'ㄱ'자 형태의 고정핀홈이 형성되며,
상기 보호관의 외측으로는 상기 유동핀홀과 대응될 수 있는 위치에 유동핀이 삽입될 수 있는 홀이 형성되고, 상기 고정핀홈에 체결되는 고정핀이 땜납되어 형성되고,
상기 보호관과 절연통이 상기 고정핀과 고정핀홈을 통해 서로 맞물린 상태에서 상기 유동핀을 상기 홀 및 유동핀홀에 끼움방식으로 체결되는, 초고압 전력케이블 절연접속함의 절연통 체결 구조.







An inner protection of the ultra-high voltage cable insulated junction box and a structure of fastening the insulation tube of the synthetic resin material to insulate the sheath between the protective tube of the same material and the sheath connected to the metal sheath of the ultra-high voltage cable,
At least one floating pin hole is formed at an outer side of the insulated tube, and at least one end of the insulated tube is formed with at least one 'P'-shaped fixing pin groove.
The outside of the protective tube is formed with a hole that can be inserted into the floating pin in a position that can correspond to the floating pin hole, the fixing pin is fastened to the fixing pin groove is formed by soldering,
Insulating tube fastening structure of the ultra-high voltage power cable insulated junction box is fastened by fitting the floating pin to the hole and the floating pin hole in a state in which the protective tube and the insulating tube is engaged with each other through the fixing pin and the fixing pin groove.







KR20120073718A 2012-07-06 2012-07-06 Fastening structure of insulator for insulation joint box of ultra high voltage power cable KR101482926B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101480336B1 (en) * 2012-09-11 2015-01-09 대한전선 주식회사 Insulator for insulation joint box of ultra high voltage power cable
CN105470908A (en) * 2016-01-11 2016-04-06 国网浙江宁波市鄞州区供电公司 Cable connector assembly

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JPH0716018U (en) * 1993-08-27 1995-03-17 ワイケイケイアーキテクチュラルプロダクツ株式会社 Pop nut and pop nut mounting structure
KR20050037765A (en) * 2003-10-20 2005-04-25 현대자동차주식회사 Frp panel assembly structure and method thereof
KR200446776Y1 (en) * 2007-10-16 2009-12-03 (주)폴리코파워시스템 Separable insulating cover for insulating terminal
KR100880450B1 (en) 2008-10-30 2009-01-29 (주)하나전력기술단 Protection cover structure of uninterrupted power for special high voltage cable

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101480336B1 (en) * 2012-09-11 2015-01-09 대한전선 주식회사 Insulator for insulation joint box of ultra high voltage power cable
CN105470908A (en) * 2016-01-11 2016-04-06 国网浙江宁波市鄞州区供电公司 Cable connector assembly

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