JPS6131597B2 - - Google Patents
Info
- Publication number
- JPS6131597B2 JPS6131597B2 JP15433781A JP15433781A JPS6131597B2 JP S6131597 B2 JPS6131597 B2 JP S6131597B2 JP 15433781 A JP15433781 A JP 15433781A JP 15433781 A JP15433781 A JP 15433781A JP S6131597 B2 JPS6131597 B2 JP S6131597B2
- Authority
- JP
- Japan
- Prior art keywords
- semiconductive
- mold
- polyolefin
- rubber
- extrusion
- 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
- 229920000098 polyolefin Polymers 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 7
- 239000004033 plastic Substances 0.000 claims description 5
- 229920003023 plastic Polymers 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims description 4
- 238000001125 extrusion Methods 0.000 description 10
- 239000012212 insulator Substances 0.000 description 5
- 230000000630 rising effect Effects 0.000 description 4
- 239000004020 conductor Substances 0.000 description 3
- 229920003020 cross-linked polyethylene Polymers 0.000 description 2
- 239000004703 cross-linked polyethylene Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005338 heat storage Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
Classifications
-
- 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
- H02G1/14—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for joining or terminating cables
- H02G1/145—Moulds
Landscapes
- Lining Or Joining Of Plastics Or The Like (AREA)
- Manufacturing Of Electrical Connectors (AREA)
- Processing Of Terminals (AREA)
Description
【発明の詳細な説明】
本発明はゴム或はプラスチツク絶縁電力ケーブ
ルの接続部形成方法、特に押出装置を用いた押出
型モールド接続部形成方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for forming connections in rubber or plastic insulated power cables, and more particularly to a method for forming extrusion mold connections using extrusion equipment.
ゴム・プラスチツク絶縁電力ケーブル特に架橋
ポリオレフイン絶縁電力ケーブルは154KV、
275KV線路に適用されており、長尺線路への適用
もされることから、これにともなつて直線接続部
が必要とされる。超高圧架橋ポリオレフイン絶縁
電力ケーブル用直線接続部は、ケーブル本体と同
材質のポリオレフイン絶縁体を用いて加熱モール
ドするモールド式が最適である。モールド式接続
部はポリオレフイン絶縁テープあるいはシートを
積層巻きして加熱モールドする方式、あらかじめ
成形したポリオレフイン絶縁ブロツクを適用して
加熱モールドする方式、ケーブル本体の製造と同
様に押出装置を用いて押出して加熱モールドする
方式がある。押出装置を用いて押出成形する押出
型モールド接続部は異物混入もなく信頼性の点か
らすぐれている。押出型モールド接続部は外部半
導電層の処理が重要であるが、特に電気性能上か
ら接続部立上り部の外部半導電層処理について信
頼性のすぐれた工法を確立する必要がある。 Rubber/plastic insulated power cables, especially cross-linked polyolefin insulated power cables, are 154KV,
It is applied to 275KV lines, and since it is also applied to long lines, a straight connection is required. The most suitable straight connection section for an ultra-high voltage cross-linked polyolefin insulated power cable is a molded type in which heat molding is performed using a polyolefin insulator made of the same material as the cable body. For molded connections, polyolefin insulating tape or sheets are laminated and rolled and heat molded, a pre-formed polyolefin insulating block is applied and heat molded, and the same method used to manufacture the cable body is extruded using an extrusion device and heated. There is a method of molding. The extrusion-type mold connection part, which is extrusion-molded using an extrusion device, is free from foreign matter and has excellent reliability. For extrusion-type molded connections, treatment of the outer semiconductive layer is important, and in particular, from the viewpoint of electrical performance, it is necessary to establish a highly reliable method for treating the outer semiconductive layer of the rising portion of the connection.
本発明の目的は押出型モールド接続部の外部半
導電層を適切に処理することができる信頼性が高
く、確実なる工法を提供することにある。 SUMMARY OF THE INVENTION An object of the present invention is to provide a reliable and reliable method for properly treating the outer semiconducting layer of an extrusion mold connection.
本発明の要旨は、押出装置を用いて、ゴム、プ
ラスチツク絶縁ケーブル接続部をおおつている金
型内に溶融ポリオレフイン絶縁物を押出充填する
場合、金型内の接続部の立上り部（ケーブルの外
部半導電層の端末部付近に位置するところに、あ
らかじめ成形された半導電性ポリオレフインユニ
ツトあるいは半導電性ゴムユツトを配置した後、
前記の溶融ポリオレフイン絶縁物を充填し、成形
することにより押出型モールド接続部を成形する
ことにある。 The gist of the present invention is that when a molten polyolefin insulation material is extruded and filled into a mold that covers a rubber or plastic insulated cable connection part using an extrusion device, the rising part of the connection part in the mold (the external part of the cable) After placing a preformed semiconductive polyolefin unit or semiconductive rubber unit near the end of the semiconductive layer,
The purpose is to form an extrusion mold connection part by filling and molding the molten polyolefin insulation.
本発明の一実施例の添付図面を引用し説明す
る。 An embodiment of the present invention will be described with reference to the accompanying drawings.
接続すべき両側の架橋ポリエチレン絶縁ケーブ
ル１１をペンシリンダ処理し、導体接続管２によ
りケーブル導体接続後、内部半導電層３を設け
る。内部半導電層３を半導電性熱収納ポリオレフ
インチユーブもしくは半導電性熱収縮ゴムチユー
ブを用いる。 The cross-linked polyethylene insulated cables 11 on both sides to be connected are subjected to pen cylinder processing, and after the cable conductors are connected through the conductor connection tubes 2, an internal semiconductive layer 3 is provided. The inner semiconductive layer 3 is made of a semiconductive heat storage polyolefin inch tube or a semiconductive heat shrinkable rubber tube.
ケーブル接続部をおおつて金型５を取り付ける
が、接続部立上り部（ケーブルの外部半導電層の
端末部付近）に位置するところの金型５の内面
に、あらかじめ成形しした半導電性ユニツト４を
配置しておく。半導電性ユニツト４は半導電性ポ
リオレフインもしくは半導電性ゴムで成形したも
のである。 A mold 5 is attached over the cable connection part, and a pre-formed semiconducting unit 4 is placed on the inner surface of the mold 5 located at the rising part of the connection part (near the terminal part of the external semiconducting layer of the cable). Place it. The semiconductive unit 4 is molded from semiconductive polyolefin or semiconductive rubber.
しかる後、金型５を所定温度に予熱し、押出装
置１より所定温度に溶融したポリオレフイン絶縁
物９を押出充填し、成形する。 Thereafter, the mold 5 is preheated to a predetermined temperature, and the extruder 1 extrudes and fills the polyolefin insulator 9 melted to a predetermined temperature to form the mold.
この場合、金型５と半導電性ユニツト４との間
に加圧媒体（空気、N2ガス、SF6ガス、シリコー
油など）を封入し加圧するか、もしくは金型５に
半導電性ユニツト４を加圧する加圧装置を内蔵さ
せ加圧することを行つてもよい。 In this case, a pressurized medium (air, N2 gas, SF6 gas, silicone oil, etc.) is sealed and pressurized between the mold 5 and the semiconductive unit 4, or a semiconductive unit is placed in the mold 5. It is also possible to incorporate a pressurizing device to pressurize 4.
さらに、両側の半導電性ユニツト間の絶縁物９
上には、半導電性熱収縮ポリオレフインチユーブ
もしくは架橋タイプの半導電性塗料あるいは半導
電性ポリオレフインを施し、加熱モールド成形し
て外部半導電層を形成する。なお、押出装置１よ
り溶融ポリオレフイン絶縁物９を充填する場合、
金型５の中をあらかじめ脱気して溶融ポリオレフ
イン絶縁物９を充填してもよい。 Furthermore, an insulator 9 between the semiconducting units on both sides
A semiconductive heat-shrinkable polyolefin film or a cross-linked semiconductive paint or a semiconductive polyolefin is applied thereon and hot molded to form an external semiconductive layer. Note that when filling the molten polyolefin insulator 9 from the extrusion device 1,
The inside of the mold 5 may be evacuated in advance and then filled with the molten polyolefin insulator 9.
６は加圧装置兼脱気装置、７はラム兼オーバー
フロー孔、８及び１０は加熱ヒーターである。 6 is a pressurizing device/deaerator, 7 is a ram/overflow hole, and 8 and 10 are heaters.
本発明によれば、次の効果が得られる。 According to the present invention, the following effects can be obtained.
１ 金型構造を複雑にせず実施でき、作業性にす
ぐれている。1. Can be implemented without complicating the mold structure and has excellent workability.
２ あらかじめ成型されている半導電性ユニツト
を用いて、押出型モールド接続部の立上り部の
外部半導電層を適切に構成できる。2. Preformed semiconducting units can be used to suitably configure the outer semiconducting layer of the rising part of the extrusion mold connection.
図は本発明の一実施例を示す半縦断説明図であ
る。
１：押出装置、２：導体接続管、３：内部半導
電層、４：半導電性ユニツト、５：金型、９：ポ
リオレフイン絶縁物、１１：架橋ポリエチレン絶
縁ケーブル。
The figure is a semi-longitudinal explanatory diagram showing one embodiment of the present invention. 1: Extrusion device, 2: Conductor connecting tube, 3: Internal semiconductive layer, 4: Semiconductive unit, 5: Mold, 9: Polyolefin insulation, 11: Crosslinked polyethylene insulated cable.
Claims (1)
ーブルの接続部をおおつている金型内に、溶融ポ
リオレフイン絶縁物を充填する場合、金型内の接
続部立上り部に位置するところに、あらかじめ成
形された半導電性ポリオレフインユニツト或は半
導電性ゴムユニツトを配置した後、前記溶融ポリ
オレフイン絶縁物を充填し、成形することを特徴
とするゴム・プラスチツク絶縁ケーブル接続部の
形成方法。1. When filling a mold that covers the joints of rubber-plastic insulated cables on both sides to be connected with molten polyolefin insulation, place a pre-formed 1. A method of forming a rubber-plastic insulated cable connection part, which comprises placing a semiconductive polyolefin unit or a semiconductive rubber unit, and then filling and molding the molten polyolefin insulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56154337A JPS5859030A (en) | 1981-09-29 | 1981-09-29 | Method of forming power cable joined section insulated with rubber or plastics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56154337A JPS5859030A (en) | 1981-09-29 | 1981-09-29 | Method of forming power cable joined section insulated with rubber or plastics |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5859030A JPS5859030A (en) | 1983-04-07 |
| JPS6131597B2 true JPS6131597B2 (en) | 1986-07-21 |
Family
ID=15581941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56154337A Granted JPS5859030A (en) | 1981-09-29 | 1981-09-29 | Method of forming power cable joined section insulated with rubber or plastics |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5859030A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6260415A (en) * | 1985-09-06 | 1987-03-17 | 東京電力株式会社 | Extruding, molding and connecting method for cable |
| JPH069316U (en) * | 1992-06-30 | 1994-02-04 | 古河電気工業株式会社 | Molded body for connection part or terminal part of electric cable |
-
1981
- 1981-09-29 JP JP56154337A patent/JPS5859030A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5859030A (en) | 1983-04-07 |
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