KR930007590B1 - Cable - Google Patents

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Publication number
KR930007590B1
KR930007590B1 KR1019900015578A KR900015578A KR930007590B1 KR 930007590 B1 KR930007590 B1 KR 930007590B1 KR 1019900015578 A KR1019900015578 A KR 1019900015578A KR 900015578 A KR900015578 A KR 900015578A KR 930007590 B1 KR930007590 B1 KR 930007590B1
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KR
South Korea
Prior art keywords
rubber
hole
conductor
rubber cap
cable
Prior art date
Application number
KR1019900015578A
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Korean (ko)
Other versions
KR920007288A (en
Inventor
권혁삼
박대희
안근수
Original Assignee
금성전선 주식회사
박원근
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Priority to KR1019900015578A priority Critical patent/KR930007590B1/en
Publication of KR920007288A publication Critical patent/KR920007288A/en
Application granted granted Critical
Publication of KR930007590B1 publication Critical patent/KR930007590B1/en

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G15/00Cable fittings
    • H02G15/08Cable junctions
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G15/00Cable fittings
    • H02G15/02Cable terminations

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  • Cable Accessories (AREA)

Abstract

In a terminal connecting method for power distributing cable, several rubber skirts (3) are mounted in layers on the cable insulation surrounding a conducting wire (1), the exposed part of the conducting wire is inserted into a hole (41) in the bottom face of draw-out bar (4), a stress cone (5) is inserted into the lower port of the bottom rubber skirt to be secured its own elastic force, and a rubber cap (6) with a hole (61) covers the connecting part between the bar (4) and the top rubber skirt and is sprayed by heating adhesive.

Description

배전용 전력케이블의 단말접속 방법Terminal connection method of power cable for distribution

제1도는 조립형 단말의 사시도.1 is a perspective view of an assembled terminal.

제2도는 제1도의 반단면도.2 is a half sectional view of FIG.

제3(a)(b)는 본 발명의 요부 확대 반 단면도.3 (a) (b) is an enlarged half sectional view of the main portion of the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

6 : 고무캡 61 : 구멍6: rubber cap 61: hole

62 : 테이퍼부 7 : 가열접착제62: taper portion 7: heat adhesive

본 발명은 배전용 전력케이블의 단말접속 방법에 관한 것으로 특히, 조립식 단말의 방수특성을 개선할 목적으로 고무캡을 가열접착제로 밀폐 접속 되게한 것이다.The present invention relates to a terminal connection method of the power distribution cable, in particular, to the rubber cap is sealed by heat adhesive for the purpose of improving the waterproof characteristics of the prefabricated terminal.

일반적으로 전력 케이블의 단말 접속 방법에는 조립형, 열수축형, 자기 수축형 등이 있는데, 그중 조립형 단말 접속방법은 가류된 고무 스커트 및 스트레스콘 등을 현장에서 조립하는 형태로 시공의 간편성 등에서 우수한 특성을 갖는다.Generally, the terminal connection method of the power cable includes an assembly type, a heat shrink type, and a self-shrink type. Among them, the assembly type terminal connection method assembles a vulcanized rubber skirt and a stress cone in the field and has excellent characteristics in terms of simplicity of construction. Has

이러한 종래의 조립형 단말접속 방법을 살펴보면 제1도 및 제2도에서와 같이 도체(1)를 감싼 케이블 절연체(4)에 고무스커트(3)가 적층되게 관통 삽입 설치되어 상부에 노출된 도체(1)가 도체단자인 인출봉(4)의 저면구멍(41)으로 삽입되고 하부에는 스트레스콘(5)을 자체탄성력으로 삽입 고정 시킨다.Referring to the conventional assembled terminal connection method, as shown in FIGS. 1 and 2, the rubber skirt 3 is inserted into the cable insulator 4 surrounding the conductor 1 so that the rubber skirt 3 is inserted through the conductor exposed to the top ( 1) is inserted into the bottom hole 41 of the withdrawal rod 4, which is a conductor terminal, and the stress cone 5 is inserted and fixed at its lower part by its own elastic force.

이때, 인출봉과 최상단 고무스커트(3)사이의 밀폐를 위하여 최상단 고무스커트에 쓰워지며 상면에 인출봉(4)이 강제 삽입되는 구멍(61)을 가지는 고무캡(6)을 삽입 결합하여서 배전용 전력케이블의 단말을 접속하는 것이다.At this time, it is inserted into the top rubber skirt for sealing between the lead rod and the top rubber skirt (3) by inserting the rubber cap (6) having a hole 61 for inserting the lead rod (4) on the upper surface of the power distribution The terminal of the cable is connected.

이 경우 최상부의 고무캡(6)과 도체단자 사이의 밀착력이 좋아야 하는데 도체단자인 인출봉(4)은 그 특성상 금속재질로 표면이 아주 매끄러운 상태이므로써 밀착력이 떨어지는 조건에서 상부의 인출봉(4)과 케이블 절연체(2)가 캡(6)의 고무자체의 탄성만으로 밀착되는 구조를 갖고 있기 때문에 장기 사용시 상단부의 접촉면 사이로 물이 침투하므로써 열화를 촉진하여 접촉면 상태를 더욱 악화시키면서 절연파괴를 야기시키는 최약점이 있는 것이다.In this case, the adhesion between the top rubber cap (6) and the conductor terminal should be good. The drawer rod (4), which is a conductor terminal, is a metallic material due to its characteristics. And the cable insulator 2 is in close contact with the elasticity of the rubber itself of the cap 6, so that water penetrates between the contact surfaces of the upper end during long-term use, thereby promoting deterioration and worsening the condition of the contact surface, causing insulation breakdown. There is a weakness.

따라서 본 발명은 상기와 같은 문제점을 해결하고자 인출봉이 끼워질 구멍 내주면에 가열접착제(hot-melt)가 도포된 상태로 고무캡을 제조하여 조립시 이를 가열접합 시키므로써 접촉면에 작은 공극까지도 완전히 메우도록 집착되게 하여 장기적으로 사용하더라도 물의 침투에 의한 절연파괴가 일어나지 않게 할 목적으로 발명된 것이다.Therefore, in order to solve the above problems, the rubber cap is manufactured in a state in which a hot-melt is applied to the inner circumferential surface of the withdrawal rod to be inserted therein so as to completely fill even the small voids on the contact surface by heat-bonding them. It is invented for the purpose of preventing the insulation breakdown due to the penetration of water even if used for a long period of time to stick.

이하에서 이를 첨부된 도면에 의해 보다 상세히 설명하면 다음과 같다.When described in more detail by the accompanying drawings as follows.

도면 제3도의 (a)는 도체(1)를 감싼 케이블 절연체(2)에 고무스커트(3)가 적층되게 관통 삽입 설치되어 상부에 노출된 도체(1)가 도체단자인 인출봉(4)의 저면구멍(41)으로 삽입되고 하부에는 스트레스콘(5)을 자체탄성력으로 삽입고정시켜 인출봉(4)과 최상단 고무스커트(3)사이에 인출봉 삽입용 구멍(61)을 가지는 고무캡(6)이 씌워지도록 조립된 것에 있어서, 구멍(61)내주면에 가열접착제(7)를 도포하여 경화시킨 상태로 제조된 고무캡(6)을 조립하여 도체단자인 인출봉(4)를 가열하여 접속하게 한 방법이다.(A) of FIG. 3 shows the cable insulator 2 wrapping the conductor 1 so that the rubber skirt 3 is inserted into the stack so that the conductor 1 exposed on the upper portion of the drawing rod 4 is a conductor terminal. The rubber cap 6 inserted into the bottom hole 41 and having a pullout rod insertion hole 61 between the pullout rod 4 and the uppermost rubber skirt 3 by inserting and fixing the stress cone 5 with its own elastic force at the bottom thereof. ) Is assembled so that the rubber cap 6 manufactured by applying the heat adhesive 7 to the inner circumferential surface of the hole 61 and cured is assembled to heat the connecting rod 4, which is a conductor terminal. One way.

그리고 도면 제3도의 (b)는 구멍(61)상부 전 둘레에 가열접착제를 녹여서 도포되게한 외부로의 테이퍼부(62)를 둔 고무캡(6)을 조립하여 도체단자인 인출봉(4)과 고무캡(6)의 테이퍼부(62)사이에 형성되는 홈부에 가열접착제 도포장치(Hot-melt Applicator)(도시안됨)를 이용하여 가열접착제(7)를 녹여 도포하여 경화시켜서 접속 되게한 방법이다.And (b) of FIG. 3 (b) assembling the rubber cap (6) having the tapered portion 62 to the outside to melt and apply the heat adhesive around the upper portion of the hole 61 is drawn out rod 4 as a conductor terminal Method to melt and apply the heat adhesive 7 by using a hot-melt applicator (not shown) in the groove formed between the taper portion 62 and the rubber cap 6 to be connected by hardening to be.

도면중 미설명부호 8은 테이핑부이다.In the figure, reference numeral 8 is a taping part.

이상과 같이 되는 본 발명의 작용효과를 살펴보면 도면 제3도의 (a)에서와 같이 구멍(61) 내주면에 가열접착제(7)가 기 도포된 고무캡(6)을 종래와 같은 방법인 자체 탄성력으로 조립 결합시킨후 도체단자인 인출봉(4)을 가열시켜 주므로써 도포된 가열접착제(7)가 녹아 단자와 캡 사이의 공극을 모두 채우고 경화 되면서 안전한 방수구조를 갖게하여 오랜 사용으로 인한 수밀저하에 따른 절연파괴등의 현상을 배제시키게 하는 것이다.Looking at the operation and effect of the present invention as described above as shown in Figure 3 (a) of the rubber cap (6) pre-coated with a heat adhesive (7) on the inner circumferential surface of the hole (61) by its own elastic force as the conventional method After assembling and bonding, the drawer bar (4), which is a conductor terminal, is heated to melt the applied heating adhesive (7), filling all the voids between the terminal and the cap, and hardening to give a safe waterproof structure to prevent water tightness due to long use. It is to exclude the phenomenon such as insulation breakdown.

그리고 도면 제3도의 (b)는 고무캡(6)의 제조시 가열접착제(7)를 도포하는 공정을 생략시키기 위한 본 발명의 또 다른 양태로써 인출봉(4)과 고무캡(6)의 결합시 인출용 접속 상부둘레에 고무캡(6)의 테이퍼부(62)에 의해 형성되는 홈부에 가열접착제 도포 장치를 이용하여 가열접착제(7)를 녹여서 도포한 후 경화 시키는 방법으로 할 수도 있는 것으로, 이때 녹은 가열접착제(7)는 고무캡(6)과 인출봉(4)전 둘레에 걸친 홈부의 공극을 모두 채우게 된다.And (b) of Figure 3 is another aspect of the present invention to omit the process of applying the heat adhesive (7) in the manufacture of the rubber cap (6) coupling of the pull-out rod (4) and the rubber cap (6) In the groove formed by the tapered portion 62 of the rubber cap 6, the heat adhesive 7 may be melted and applied to the groove formed by the tapered portion 62 of the rubber cap 6, and then hardened. At this time, the melted heat adhesive 7 fills all the voids of the groove portion around the front of the rubber cap 6 and the drawing bar 4.

이후 경화되어 안전한 방수구조를 갖게 하여 수밀저하에 따른 절연파괴등의 현상을 일소시키는 것이다.After hardening to have a safe waterproof structure to eliminate the phenomenon such as insulation breakdown due to water tightness.

이상과 같이 수밀되게 조립 구성시키는 본 발명은 시공의 간편성 등에서 우수한 특성을 갖는 조립형 단말 접속 방법에서 가열접착제를 사용하여 그 수밀구조를 개선시키므로써 조립형 단말접속 방법에 따른 단말의 (오랜사용에 의한) 수밀저하로 의한 절연파괴 현상을 일거에 해소시킴으로써 보다 나은 특성을 갖는 조립형 전력케이블의 단말을 제공하는 효과가 있는 것이다.The present invention to be assembled as tightly as described above is to improve the watertight structure by using a heat adhesive in the assembled terminal connection method having excellent characteristics in the ease of construction, etc. It is effective to provide a terminal of the assembled power cable having better characteristics by eliminating the breakdown of insulation due to water tightness.

Claims (2)

도체(1)를 감싼 케이블 절연체(2)에 고무스커트(3) 적층되게 관통삽입 설치되어, 상부에 노출된 도체(1)가 인출봉(4)의 저면 구멍(41)으로 삽입되고 하부에는 스트레스콘(5)을 자체 탄성력으로 삽입고정시켜서, 인출봉(4)과 최상단 고무스커트(3)사이에 구멍(61)을 가지는 고무캡(6)을 씌어 가열접착제(7)를 도포하여 조립되게 한 것에 있어서, 구멍(61) 내주면에 가열접착제(7)를 도포 경화시킨 고무캡(6)을 조립하되, 도체단자인 인출봉(4)을 가열접속시킴을 특징으로 한 배전용 전력케이블의 단말접속 방법.A rubber skirt 3 is inserted into the cable insulator 2 wrapping the conductor 1 so that the rubber skirt 3 is stacked therethrough. The conductor 1 exposed to the upper part is inserted into the bottom hole 41 of the lead rod 4, The cone 5 was inserted and fixed with its own elastic force so that a rubber cap 6 having a hole 61 was interposed between the lead rod 4 and the uppermost rubber skirt 3 to be assembled by applying a heat adhesive 7. In which the rubber cap 6 is formed by assembling and hardening the heat adhesive 7 on the inner circumferential surface of the hole 61, and the terminal connection of the power cable for power distribution for power distribution, characterized by heating connection of the lead rod 4, which is a conductor terminal. Way. 제1항에 있어서, 구멍(61) 상부 전 둘레에 외부로의 테이퍼부(62)를 둔 고무캡(6)을 조립하여 도체단자인 인출봉(4)과 고무캡(6)의 테이퍼부(62) 사이에 형성된 홈부에 가열접착제(7)를 녹여 도포한 후 경화시켜서 됨을 특징으로 하는 배전용 전력케이블의 단말접속방법.The rubber cap 6 having the tapered portion 62 to the outside around the upper portion of the upper portion of the hole 61 is assembled, and the tapered portion of the pull-out rod 4 and the rubber cap 6, which are conductor terminals, are formed. 62) A terminal connection method of a power cable for power distribution, characterized in that the heat adhesive (7) is melted and applied to the groove portion formed between and then cured.
KR1019900015578A 1990-09-28 1990-09-28 Cable KR930007590B1 (en)

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KR930007590B1 true KR930007590B1 (en) 1993-08-13

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114520483A (en) * 2022-03-14 2022-05-20 国网宁夏电力有限公司吴忠供电公司 Insulated drainage wire for power transmission line and preparation and installation methods thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114520483A (en) * 2022-03-14 2022-05-20 国网宁夏电力有限公司吴忠供电公司 Insulated drainage wire for power transmission line and preparation and installation methods thereof

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KR920007288A (en) 1992-04-28

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