JPS607451B2 - Rubber, plastic power cable connections - Google Patents
Rubber, plastic power cable connectionsInfo
- Publication number
- JPS607451B2 JPS607451B2 JP9101681A JP9101681A JPS607451B2 JP S607451 B2 JPS607451 B2 JP S607451B2 JP 9101681 A JP9101681 A JP 9101681A JP 9101681 A JP9101681 A JP 9101681A JP S607451 B2 JPS607451 B2 JP S607451B2
- Authority
- JP
- Japan
- Prior art keywords
- plastic
- rubber
- layer
- power cable
- resistance
- 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
- 239000004033 plastic Substances 0.000 title claims description 19
- 229920003023 plastic Polymers 0.000 title claims description 19
- 239000004020 conductor Substances 0.000 claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- 239000000835 fiber Substances 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims description 5
- 239000004744 fabric Substances 0.000 claims description 4
- 238000009941 weaving Methods 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 238000010030 laminating Methods 0.000 claims description 2
- 239000002184 metal Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 239000012212 insulator Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 201000004569 Blindness Diseases 0.000 description 1
- 229910001006 Constantan Inorganic materials 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 229920003020 cross-linked polyethylene Polymers 0.000 description 1
- 239000004703 cross-linked polyethylene Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 229910001120 nichrome Inorganic materials 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
Landscapes
- Cable Accessories (AREA)
Description
【発明の詳細な説明】
本発明は、ゴム、プラスチック電力ケーブル接続部の改
良に関するものである。DETAILED DESCRIPTION OF THE INVENTION This invention relates to improvements in rubber, plastic power cable connections.
超高圧℃Ｖケーブル用絶縁接続箱の外部縁切り構造は、
製造上及び絶縁性能上問題が多い。The external edge cutting structure of the insulated junction box for ultra-high voltage ℃V cable is
There are many problems in manufacturing and insulation performance.
このため、完全な縁切りを行わず、外部遮蔽用半導電層
は縁切りしない構造が考えられる。このようにすると、
絶縁体に対する対地静電遮蔽が行われるので、製造上及
び性能上有効である。しかし、この外部半導電層の抵抗
値が低すぎると常時のクロスボンド電圧による発熱が高
くなりすぎ、また、高すぎると導体に雷サージ等が浸入
した場合の電位浮動が高くなりすぎると云う問題を生じ
る。このため、この外部半導電層はある一定の設定値を
長期間保持することが望ましい。しかし、一般にカーボ
ン粉を混入した半導電層は温度その他により抵抗値が変
化する榎向にあり、長期間ある許容設定値内に保持する
ことは非常に困難である。また一般に、外部半導電層の
固有抵抗は１ぴ○抑のオーダーであり、望ましい固有抵
抗値は１び○伽程度であるが、カーボン粉を混入した半
導電シートでこのオーダに下げることは困難である。本
発明は上記の状況に鑑みてなされたものであり、外部半
導電層の抵抗値の長期安定保持性を向上できるとともに
最適抵抗値の選定が容易なゴム、プラスチック電力ケー
ブル接続部を提供することを目的としたものである。本
発明のＣＶケーブル接続部は、ケーブル端部の被覆を剥
離しケーブル端部を露出し接続された導体スリーブの外
周に接続部絶縁層が形成されてなり、上記接続部絶縁層
外周に、編組されたプラスチック繊維布の一部に抵抗線
が織り込まれ形成された抵抗帯と、カーボン粉が混入形
成されたゴム、プラスチック半導電層、もしくは上記抵
抗帯の少なくとも片面にカーボン粉が混入されたゴム、
プラスチック半導電性シートをラミネートし一体化形成
された半導電層の何れか片方の半導電層とを設けたもの
である。For this reason, a structure in which complete edge cutting is not performed and the outer shielding semiconductive layer is not edge cut is considered. In this way,
Since ground electrostatic shielding is provided for the insulator, it is effective in terms of manufacturing and performance. However, if the resistance value of this external semiconducting layer is too low, the heat generated by the constant cross-bond voltage will be too high, and if it is too high, the potential floating will become too high when lightning surges etc. infiltrate the conductor. occurs. For this reason, it is desirable that this external semiconducting layer maintain a certain set value for a long period of time. However, in general, a semiconductive layer containing carbon powder has a resistance value that changes depending on temperature and other factors, and it is extremely difficult to maintain it within a certain allowable set value for a long period of time. Additionally, in general, the specific resistance of the external semiconductive layer is on the order of 1 pm, and the desirable specific resistance value is about 1 pm, but it is difficult to lower it to this order with a semiconducting sheet mixed with carbon powder. It is. The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a rubber or plastic power cable connection part that can improve the long-term stability of the resistance value of an external semiconducting layer and allows easy selection of the optimum resistance value. The purpose is to The CV cable connection part of the present invention is formed by peeling off the coating of the cable end to expose the cable end, and forming a connection part insulating layer on the outer periphery of the connected conductor sleeve. A resistance band formed by weaving a resistance wire into a part of a plastic fiber cloth made of plastic, a rubber formed by mixing carbon powder, a plastic semiconductive layer, or a rubber formed by mixing carbon powder on at least one side of the resistance band. ,
One of the semiconductive layers is formed by laminating plastic semiconductive sheets and integrally formed.
以下本発明のゴム、プラスチック電力ケーブル接続部の
一実施例を第１図ないし第３図により説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the rubber/plastic power cable connection part of the present invention will be described below with reference to FIGS. 1 to 3.
第１図は抵抗帯を用いた架橋ポリエチレン電力ケーブル
（以下ＣＶケーブルと称す）クロスポンド専用の接続部
の断面図、第２図は第１図の抵抗帯の説明図、第３図は
第２図の皿−ｏｍ折面詳細図である。抵抗帯８は、第２
図、第３図に示すように、プラスチック繊維の縦糸１に
抵抗線２を横糸状に織り込み形成された抵抗帯８の繊維
布の両面にはそれぞれカーボン粉を混入したゴム、プラ
スチック半導電シートがラミネートし形成されたラミネ
ート半導電層３，３が一体に形成されている。第１図に
おいてＣＶケーブルは端部を段剥ぎされてケーブル導体
４が露出されて導体スリーブ１７を介し接続されている
。Figure 1 is a cross-sectional view of a cross-linked polyethylene power cable using a resistance band (hereinafter referred to as CV cable) dedicated to the crosspond connection, Figure 2 is an explanatory diagram of the resistance band in Figure 1, and Figure 3 is the FIG. Resistance band 8 is the second
As shown in Figures 3 and 3, rubber mixed with carbon powder and a plastic semiconductive sheet are respectively coated on both sides of the fiber cloth of the resistance band 8, which is formed by weaving the resistance wire 2 into the warp 1 of the plastic fiber. Laminated semiconductive layers 3, 3 formed by lamination are integrally formed. In FIG. 1, the end of the CV cable is stripped to expose the cable conductor 4, which is connected via a conductor sleeve 17.
５はケーブル絶縁層、６は導体スリーブ１７上に形成さ
れた主絶縁層で主絶縁層６の外周に形成された外部遮蔽
用のセミ縁切部半導電層７と一括あるいは分割しモール
ド成形され、その上部に金属遮蔽極９が接続部半導電層
１０と共に形成されている。5 is a cable insulating layer, 6 is a main insulating layer formed on the conductor sleeve 17, and is molded together with the semi-conducting layer 7 for external shielding formed on the outer periphery of the main insulating layer 6, either all at once or separately. , on which a metal shielding electrode 9 is formed together with a connecting semiconducting layer 10 .
セミ縁切部半導電層７の外周に両面にラミネート半導電
層３，３が一体化形成された抵抗体８が全周あるいは一
部に被覆され、両端は金属遮蔽極９に接続されている。
そして、ラミネート半導電層３，３が一体化された抵抗
帯８の外周部に補強絶縁層１１が形成され、補強絶縁層
１１はケーブル導体４にサージ電圧等が侵入した場合の
半導電層部の電位浮動に対する絶縁である。１２は金属
遮蔽体、１３は金属耳同管、１４はクロスボンド端子、
１５は防水層、１６は絶縁物である。A resistor 8 integrally formed with laminated semiconducting layers 3 on both sides is coated on the outer periphery of the semi-edge semiconductive layer 7 all or partially, and both ends are connected to a metal shielding pole 9. .
A reinforcing insulating layer 11 is formed on the outer periphery of the resistance band 8 in which the laminated semiconducting layers 3, 3 are integrated, and the reinforcing insulating layer 11 acts as a semiconducting layer when a surge voltage or the like enters the cable conductor 4. insulation against potential fluctuations. 12 is a metal shield, 13 is a metal ear tube, 14 is a cross bond terminal,
15 is a waterproof layer, and 16 is an insulator.
尚、抵抗源２の材質としては、ニクロム線、コンスタン
タン線等耐腐食性、機械的強度にすぐれ、しかも固有抵
抗の高いものが望ましい。このような本実施例のＣＶケ
ーブルジョイント部は、接続部の半導電層が所要抵抗値
より約１桁高いので、この半導電層と並列に抵抗帯を半
導電層に密着し接続したので、仮りに半導電層の低抵抗
値が変化しても抵抗帯を含む全抵抗値は許容地内に納め
ることができる。As the material of the resistance source 2, it is desirable to use a material with excellent corrosion resistance, mechanical strength, and high specific resistance, such as nichrome wire or constantan wire. In the CV cable joint part of this embodiment, the semiconducting layer at the connection part has a resistance value about one order of magnitude higher than the required resistance value, so the resistance band was closely connected to the semiconducting layer in parallel with this semiconducting layer. Even if the low resistance value of the semiconducting layer changes, the total resistance value including the resistance band can be kept within the allowable range.
そして、外部半導電層の最適抵抗値の設定が容易にでき
、また、半導電層抵抗値の長期安定保持性を向上できる
。上記実施例はモールド絶縁層の外側に外部半導電層が
設けられているものに両面へラミネート半導電層がそれ
ぞれ形成された抵抗帯を配談した場合について述べたが
、モールド絶縁層の外側に外部半導電層を設けないでラ
ミネート半導電層が形成された抵抗帯を配談しても作用
効果は同じである。Then, it is possible to easily set the optimum resistance value of the external semiconducting layer, and it is also possible to improve the long-term stability of the semiconducting layer resistance value. In the above embodiment, a resistive band having laminated semiconducting layers formed on both sides of a structure in which an external semiconducting layer is provided on the outside of the mold insulating layer is arranged. Even if a resistive band having a laminated semiconducting layer is formed without providing an external semiconducting layer, the same effect can be obtained.
また、モールド絶縁層の外側に外部半導電層が形成され
ているときはラミネート半導電層が形成されてない抵抗
帯を配設しても作用効果は同じである。そして、抵抗帯
を織り込んだ繊維布の片面にカーボン粉を混入したゴム
、プラスチック半導電シートをラミネートし、他の片面
に絶縁性ゴム、プラスチックシートをラミネートしたも
のを半導電層側を外部半導電層に接するように用いても
作用効果は同じである。以上記述した如く本発明のゴム
、プラスチック電力ケーブル接続部は、外部半導電層の
抵抗値の長期安定保持性を向上できるとともに最適抵抗
値の選定が容易であるなどの効果を有するものである。Furthermore, when an external semiconducting layer is formed outside the mold insulating layer, the same effect can be obtained even if a resistance band is provided without a laminated semiconducting layer. Then, one side of the fiber cloth woven with the resistance band is laminated with rubber mixed with carbon powder and a plastic semiconductive sheet, and the other side is laminated with insulating rubber and a plastic sheet, and the semiconductive layer side is an external semiconductive layer. Even if it is used in contact with the layer, the effect is the same. As described above, the rubber or plastic power cable connection portion of the present invention has the advantage of being able to improve the long-term stability of the resistance value of the external semiconducting layer and facilitating the selection of the optimum resistance value.
第１図は本発明のゴム、プラスチック電力ケーブル接続
部の実施例の要部断面図、第２図は第１図のラミネ−ト
半導電層が一体化された抵抗帯の詳細図、第３図は第２
図の皿一皿失視の一部の断面図である。
１：縦糸、２：抵抗線、３：ラミネート半導電層、４：
ケーブル導体、６：モールド主絶縁層、８：抵抗帯、１
７：導体スリーフ。
矛’因
矛Ｚ図
才３図Fig. 1 is a sectional view of essential parts of an embodiment of the rubber/plastic power cable connection part of the present invention, Fig. 2 is a detailed view of a resistance band in which the laminated semiconducting layer of Fig. 1 is integrated, and Fig. 3 The figure is the second
FIG. 3 is a cross-sectional view of a portion of the dish-by-pan blindness shown in FIG. 1: Warp, 2: Resistance wire, 3: Laminated semiconductive layer, 4:
Cable conductor, 6: mold main insulation layer, 8: resistance band, 1
7: Conductor sleeve. 3 illustrations of Z zusai
Claims (1)
出し接続された導体スリーブの外周に接続部絶縁層が形
成されたゴム、プラスチツク電力ケーブル接続部におい
て、上記接続部絶縁層外周に、編組されたプラスチツク
繊維布の一部に抵抗線が織り込まれ形成された抵抗帯と
、カーボン粉が混入形成されたゴム、プラスチツク半導
電層、もしくは上記抵抗帯の少なくとも片面にカーボン
粉が混入されたゴム、プラスチツク半導電性シートをラ
ミネートし一体化形成された半導電層の何れか片方の半
導電層とを設けたことを特徴とするゴム、プラスチツク
電力ケーブル接続部。1 In a rubber or plastic power cable connection part where the insulation layer of the connection part is formed on the outer periphery of the connected conductor sleeve by peeling off the coating of the cable end to expose the cable conductor end part, a braid is applied to the outer periphery of the connection part insulation layer. A resistance band formed by weaving a resistance wire into a part of a plastic fiber cloth made of plastic, a rubber formed by mixing carbon powder, a plastic semiconductive layer, or a rubber formed by mixing carbon powder on at least one side of the resistance band. A rubber or plastic power cable connection part, characterized in that it is provided with a semiconductive layer on either side of a semiconductive layer formed by laminating and integrally forming a plastic semiconductive sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9101681A JPS607451B2 (en) | 1981-06-12 | 1981-06-12 | Rubber, plastic power cable connections |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9101681A JPS607451B2 (en) | 1981-06-12 | 1981-06-12 | Rubber, plastic power cable connections |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57206216A JPS57206216A (en) | 1982-12-17 |
| JPS607451B2 true JPS607451B2 (en) | 1985-02-25 |
Family
ID=14014754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9101681A Expired JPS607451B2 (en) | 1981-06-12 | 1981-06-12 | Rubber, plastic power cable connections |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS607451B2 (en) |
-
1981
- 1981-06-12 JP JP9101681A patent/JPS607451B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57206216A (en) | 1982-12-17 |
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