JPH0347411Y2 - - Google Patents
Info
- Publication number
- JPH0347411Y2 JPH0347411Y2 JP7174683U JP7174683U JPH0347411Y2 JP H0347411 Y2 JPH0347411 Y2 JP H0347411Y2 JP 7174683 U JP7174683 U JP 7174683U JP 7174683 U JP7174683 U JP 7174683U JP H0347411 Y2 JPH0347411 Y2 JP H0347411Y2
- Authority
- JP
- Japan
- Prior art keywords
- cable
- insulating spacer
- cylindrical
- insulating layer
- fitting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 125000006850 spacer group Chemical group 0.000 claims description 22
- 239000012212 insulator Substances 0.000 claims description 10
- 230000037431 insertion Effects 0.000 claims description 7
- 238000003780 insertion Methods 0.000 claims description 7
- 239000004020 conductor Substances 0.000 claims description 3
- 238000009413 insulation Methods 0.000 description 6
- 230000002093 peripheral effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
Landscapes
- Cable Accessories (AREA)
Description
【考案の詳細な説明】
本考案は組立作業の向上を図つた電力ケーブル
終端接続部に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a power cable termination connection that improves assembly operations.
従来の電力ケーブルの終端接続部は、第１図に
示すようにケーブル端末の絶縁層１１、遮蔽層１
２を所定寸法段剥ぎして露出せしめたケーブル絶
縁層１１上に、EPゴム等からなる円筒状の絶縁
スペーサ１４を内装する筒状碍子１５を被せた
後、ケーブル導体１３を端子金具１６の空胴内に
挿入して圧縮接続していた。 As shown in FIG.
A cylindrical insulator 15 containing a cylindrical insulating spacer 14 made of EP rubber or the like is placed on the exposed cable insulating layer 11 by peeling off the cable conductor 13 in a predetermined dimension. It was inserted into the body and connected by compression.
このように構成する従来の電力ケーブル終端接
続部は、円筒状絶縁スペーサ１４の嵌挿孔内径ｄ
を、ケーブル絶縁層１１の外径Ｄより約１mm程度
小さく設計し、ケーブル絶縁層１１上に絶縁スペ
ーサ１４を嵌挿したとき嵌合界面に生じる締り嵌
め圧力によつて終端部の絶縁特性が維持されるよ
うになつている。このため大型絶縁スペーサ１
４、及び筒状碍子１５を必要とする高圧ケーブル
終端接続部を構成する際、外側に筒状碍子１５を
被せた状態で絶縁スペーサ１４を、ケーブル絶縁
層１１上に嵌挿しょうとすると、嵌挿時に生ずる
絶縁スペーサ１４の外方への膨出が、その上に被
せられた剛体の筒状碍子１５によつて抑止されて
摩擦抵抗が非常に大きくなり、また絶縁スペーサ
１４だけを先にケーブル絶縁層１１上に被せる
と、絶縁スペーサ１４の外径がケーブル絶縁層上
への嵌挿によつて筒状碍子１５の内径よりも大く
なり、このため絶縁スペーサ１４上に筒状碍子１
５を嵌挿することが非常に困難で、嵌挿組立時に
は潤滑剤や機械力を必要とするなど多くの労力と
長時間を費していた。 The conventional power cable terminal connection section configured as described above has an inner diameter d of the insertion hole of the cylindrical insulating spacer 14.
is designed to be approximately 1 mm smaller than the outer diameter D of the cable insulating layer 11, and the insulation properties of the terminal end are maintained by the tight fitting pressure generated at the fitting interface when the insulating spacer 14 is fitted onto the cable insulating layer 11. It is becoming more and more common. Therefore, large insulating spacer 1
4 and a cylindrical insulator 15, if you try to insert the insulating spacer 14 onto the cable insulating layer 11 with the cylindrical insulator 15 on the outside, it will not fit properly. The outward bulge of the insulating spacer 14 that occurs during insertion is suppressed by the rigid cylindrical insulator 15 placed over it, resulting in a very large frictional resistance. When placed on the insulating layer 11, the outer diameter of the insulating spacer 14 becomes larger than the inner diameter of the cylindrical insulator 15 due to fitting onto the cable insulating layer, and therefore the cylindrical insulator 1 is placed on the insulating spacer 14.
It is very difficult to insert and insert 5, and it requires a lot of labor and a long time, as lubricant and mechanical force are required during the insertion and assembly.
本考案は上記点にかんがみ、ケーブル絶縁層上
に嵌挿する円筒状の絶縁スペーサの嵌合周面に螺
旋状の溝を形成することによつて従来の問題点を
解消しようとするものである。 In view of the above points, the present invention attempts to solve the conventional problems by forming a spiral groove on the fitting circumferential surface of a cylindrical insulating spacer that is fitted onto the cable insulating layer. .
以下図面によつて本考案の一実施例を説明する
に、第２図において１はケーブル絶縁層、２は該
ケーブル絶縁層１上に挿通のEPゴム等からなる
円筒状の絶縁スペーサ、３は該絶縁スペーサ２の
嵌挿孔内周面に形成の螺旋状溝で、円筒状絶縁ス
ペーサ２の嵌挿孔の孔径ｄはケーブル絶縁層１の
外径Ｄより僅かに小さく、絶縁スペーサ２の嵌挿
孔内周面に形成の螺旋状溝３は、第３図に示すよ
うに、その山部の径d1がd1≒Ｄ、谷部の径d2がd2
＜Ｄになるように形成する。具体的にはケーブル
絶縁層の外径Ｄに対する螺旋状溝３の山部の径d1
がＤ−d1＝0.1〜０mm、谷部の径d2が、Ｄ−d2≒
１mmになるように形成する。４は絶縁スペーサ２
上に被せられた筒状碍子、５は空胴内にケーブル
導体６を挿入して圧縮接続した端子金具、７はケ
ーブル端末上から絶縁スペーサ２上に亘り施され
た絶縁層である。 An embodiment of the present invention will be described below with reference to the drawings. In FIG. 2, 1 is a cable insulating layer, 2 is a cylindrical insulating spacer made of EP rubber or the like, which is inserted on the cable insulating layer 1, and 3 is a cylindrical insulating spacer made of EP rubber, etc. The hole diameter d of the fitting hole of the cylindrical insulating spacer 2 is slightly smaller than the outer diameter D of the cable insulation layer 1, and the hole diameter d of the fitting hole of the cylindrical insulating spacer 2 is a spiral groove formed on the inner peripheral surface of the fitting hole of the insulating spacer 2. As shown in FIG. 3, the spiral groove 3 formed on the inner circumferential surface of the insertion hole has a peak diameter d 1 of d 1 ≒ D and a valley diameter d 2 of d 2
<D. Specifically, the diameter d 1 of the peak of the spiral groove 3 with respect to the outer diameter D of the cable insulation layer
is D-d 1 = 0.1 to 0 mm, and the valley diameter d 2 is D-d 2 ≒
Shape to 1mm. 4 is insulating spacer 2
A cylindrical insulator is placed on top, 5 is a terminal fitting which is compressed and connected by inserting a cable conductor 6 into the cavity, and 7 is an insulating layer applied from the cable end to the insulating spacer 2.
本考案は上述のように、ケーブル絶縁層１上に
被せた円筒状の絶縁スペーサ２の嵌挿孔内周面に
螺旋状溝３を形成したことにより、予め段剥ぎし
たケーブル絶縁層１上に、絶縁スペーサ２を単独
に又はその上に嵌挿の筒状碍子４と共に被せる
際、嵌合面の摩擦抵抗が小さく嵌挿組立作業が極
めて容易に行なえ、しかも絶縁スペーサ２の嵌挿
時にその螺旋状溝３の溝部に存在する空気は全て
螺旋状溝３を通つて外方に押出され絶縁スペーサ
の嵌挿孔内周面は締り嵌め圧力によつてケーブル
絶縁層１の外周面に圧接するのでコロナ放電の発
生する惧はなく電気特性の優れたケーブル終端接
続部が得られる。 As described above, the present invention has a spiral groove 3 formed on the inner peripheral surface of the insertion hole of the cylindrical insulating spacer 2 placed on the cable insulating layer 1. When the insulating spacer 2 is fitted alone or over it together with the cylindrical insulator 4, the frictional resistance of the fitting surface is small, and the fitting and assembly work can be performed extremely easily. All the air present in the groove of the spiral groove 3 is pushed outward through the spiral groove 3, and the inner peripheral surface of the insertion hole of the insulating spacer is pressed against the outer peripheral surface of the cable insulation layer 1 by the tight fitting pressure. There is no risk of corona discharge occurring, and a cable end connection with excellent electrical characteristics can be obtained.
第１図は従来の電力ケーブル終端接続部を示す
説明図、第２図は本考案の一実施例を示す説明
図、第３図は要部を示す説明図である。
１……ケーブル絶縁層、２……絶縁スペーサ、
３……螺旋状溝、４……筒状碍子、５……端子金
具。
FIG. 1 is an explanatory diagram showing a conventional power cable terminal connection section, FIG. 2 is an explanatory diagram showing an embodiment of the present invention, and FIG. 3 is an explanatory diagram showing the main parts. 1...Cable insulation layer, 2...Insulation spacer,
3... Spiral groove, 4... Cylindrical insulator, 5... Terminal fitting.
Claims (1)
絶縁スペーサとその上に筒状碍子を嵌挿してなる
電力ケーブルの終端接続部において、ケーブル絶
縁層上に被せた上記円筒状絶縁スペーサの嵌挿孔
内周面に螺旋状溝を設けてなることを特徴とする
電力ケーブル終端接続部。 Insertion of the above-mentioned cylindrical insulating spacer over the cable insulating layer at the terminal connection part of a power cable, which is formed by inserting a cylindrical insulating spacer on the insulating layer of the cable connected to the conductor and a cylindrical insulator thereon. A power cable terminal connection section characterized by having a spiral groove provided on the inner circumferential surface of the hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7174683U JPS59179426U (en) | 1983-05-16 | 1983-05-16 | Power cable termination connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7174683U JPS59179426U (en) | 1983-05-16 | 1983-05-16 | Power cable termination connection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59179426U JPS59179426U (en) | 1984-11-30 |
| JPH0347411Y2 true JPH0347411Y2 (en) | 1991-10-09 |
Family
ID=30201900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7174683U Granted JPS59179426U (en) | 1983-05-16 | 1983-05-16 | Power cable termination connection |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59179426U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017158263A (en) * | 2016-02-29 | 2017-09-07 | 住電機器システム株式会社 | Rubber mold component, connection part of power cable, and construction method for rubber mold component |
-
1983
- 1983-05-16 JP JP7174683U patent/JPS59179426U/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017158263A (en) * | 2016-02-29 | 2017-09-07 | 住電機器システム株式会社 | Rubber mold component, connection part of power cable, and construction method for rubber mold component |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59179426U (en) | 1984-11-30 |
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