JPS6023475B2 - Connection method of plastic insulated cable - Google Patents
Connection method of plastic insulated cableInfo
- Publication number
- JPS6023475B2 JPS6023475B2 JP56104902A JP10490281A JPS6023475B2 JP S6023475 B2 JPS6023475 B2 JP S6023475B2 JP 56104902 A JP56104902 A JP 56104902A JP 10490281 A JP10490281 A JP 10490281A JP S6023475 B2 JPS6023475 B2 JP S6023475B2
- Authority
- JP
- Japan
- Prior art keywords
- plastic insulated
- insulating material
- heating device
- heated
- connection method
- 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
Landscapes
- Manufacturing Of Electrical Connectors (AREA)
- Processing Of Terminals (AREA)
Description
【発明の詳細な説明】
本発明は、プラスチック絶縁ケーブルの接続工法に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for connecting plastic insulated cables.
プラスチック絶縁ケーブルの加熱モールド接続部には、
ケーブル絶縁体と同材質もしくは類似の絶縁材料をテー
プ状にし、これを積層巻さして加熱成形加工したものと
、押出機により上記絶縁材料を押出し成形加工したもの
とがあるが、超高圧ケーブル用接続部に対しては信頼性
の点から押出し成形した加熱モールド式接続部が適切で
ある。Heated molded connections on plastic insulated cables include
There are two types of tapes made of the same or similar insulating material as the cable insulator, which are laminated and wound and heat-formed, and those where the above insulating material is extruded using an extruder. Extruded, heat-molded connections are suitable for reliability reasons.
ところで、それが特に超高圧ケーブルの接続用として用
いられるものである場合には、そこに形成される絶縁補
強体は表面が平滑でしかも内部にはボイドを有さないも
のでなければならないが、そのためにはその製造に当っ
て押出機内に収納された絶縁材料を確実に加熱すること
が肝要である。本発明の目的はプラスチック絶縁ケーブ
ルのモールド式接続において押出機内の絶縁材料を効率
良く且つ確実に加熱し得る工法を提供することにある。By the way, especially if it is used for connecting ultra-high voltage cables, the insulation reinforcement formed there must have a smooth surface and no voids inside. For this purpose, it is important to reliably heat the insulating material stored in the extruder during its manufacture. SUMMARY OF THE INVENTION An object of the present invention is to provide a method for efficiently and reliably heating insulating material in an extruder in molded connection of plastic insulated cables.
すなわち、本発明の要旨は、押出機内に収納された絶縁
材料の加熱を当該押出機に設けられた電熱加熱装置と超
音波加熱装置との併用により行なうことにある。That is, the gist of the present invention is to heat an insulating material housed in an extruder by using an electric heating device and an ultrasonic heating device provided in the extruder in combination.
次に、添付の図面を参照しながら本発明接続工法の一実
施例を説明すると、まず接続すべきプラスチック絶縁ケ
ーブル（たとえば架橋化ポリエチレン絶縁ケーブル）１
および１′の端部における絶縁層１５および１５′を図
示の如く剥離し、こうして露出させた。Next, an embodiment of the connection method of the present invention will be described with reference to the attached drawings. First, a plastic insulated cable (for example, a cross-linked polyethylene insulated cable) 1 to be connected
The insulating layers 15 and 15' at the ends of 1' and 1' were peeled off as shown and thus exposed.
ケーブル導体１６および１６′を接続管２で鞍続し、更
に該接続管２およびケーブル導体１６および１６′の周
上に半導電性ポリオレフィンの内部半導電層９を施こす
。The cable conductors 16 and 16' are connected by a connecting tube 2, and an inner semiconductive layer 9 of semiconductive polyolefin is applied around the connecting tube 2 and the cable conductors 16 and 16'.
次いで〜上記両ケープルーおよび１′の端部絶縁層１５
および１５′にわたって金型亀０を取り付ける。金型亀
０１こはオーバーフロー孔】２、加熱用ヒータ１亀が取
り付けられている。更に、金型軍肌ま切換「分離装置３
とラム式押出装置６と押出装置亀３が直結され、且つ、
補給用ラム装置亀亀が取り付けられている。次いで、ブ
ロック状（円筒状、充填円状綾の形状など）でラム式押
出装置６に収納されているポリオレフイン絶縁材料（特
に図示しない。）を当該装置６に取り付けられた電熱加
熱装置５により子熱し、所定温度にした後「電熱加熱装
置５を分離し、引き続いて超音波加熱装置４を動作させ
、ポリオレフィン絶縁材料の内部中心まで所定の押出温
度に加熱する。しかる後、押出装置亀３を動作ごせてラ
ム式押出装置６中のポリオレフィン絶縁材料を前記金型
１８中に押出し成形する。補給用ラム式押出装置亀１貴
まポリオレフィン絶縁材料の冷却時の収縮による補給と
して適用される。補給用ラム装置にも所定加熱袋瞳がと
りつけられ、液体、もしくは気体で加圧しておく。この
ようにして遂行される本実施例接続工法によれば「 ラ
ム式押出装置内に収納された絶縁材料の加熱を電気加熱
装置と超音波加熱装置の併用により行なうことから、た
とえそれが大口径のブロック材などであったとしても遠
くしかも中心まで確実に加熱できる。以上のように「本
発明は、冒頭で述べた目的を十分に達成できるものであ
り、従って特に超高圧ケーブルの接続に有用である。Then ~ the edge insulating layer 15 of both cape loops and 1'
and 15', attach the mold hook 0. Mold turtle 01 This is the overflow hole] 2. Heater 1 turtle is attached. In addition, the mold surface switching "separation device 3"
The ram type extrusion device 6 and the extrusion device turtle 3 are directly connected, and
A replenishment ram device, Kamikame, is attached. Next, a polyolefin insulating material (not particularly shown) stored in a ram type extrusion device 6 in a block shape (cylindrical shape, filled circular twill shape, etc.) is heated by an electric heating device 5 attached to the device 6. After heating to a predetermined temperature, the electric heating device 5 is separated, and the ultrasonic heating device 4 is then operated to heat the inner center of the polyolefin insulating material to a predetermined extrusion temperature. After the operation is complete, the polyolefin insulating material in the ram type extrusion device 6 is extruded into the mold 18.The ram type extrusion device 1 for replenishment is used to replenish the polyolefin insulating material by shrinkage during cooling. A predetermined heating bag pupil is also attached to the replenishing ram device and pressurized with liquid or gas.According to the connection method of this embodiment, which is carried out in this way, the insulation housed in the ram type extrusion device Since the material is heated by a combination of an electric heating device and an ultrasonic heating device, even if the material is a large-diameter block material, it can be reliably heated from a distance to the center. , which satisfactorily achieves the objectives mentioned at the outset and is therefore particularly useful for connecting extra-high voltage cables.
図は「本発明プラスチック絶縁ケーブルの‐−実施例説
明図である。
軍，１′…プラスチック絶縁ケーブル「 ２・・・導体
接続管、３・・・切り換、分離装置、４…超音波加熱部
、５…電熱加熱部〜 ６・・。The figure is an explanatory diagram of an embodiment of the plastic insulated cable of the present invention. Military, 1'...Plastic insulated cable 2...Conductor connection pipe, 3...Switching, separation device, 4...Ultrasonic heating Part, 5... Electric heating part ~ 6....
Claims (1)
の周上に配置された金型内に、押出機を用いて加熱溶融
状態の絶縁材料を押出して上記導体接続部の周上に所定
の絶縁補強体を押出成形するプラスチツク絶縁ケーブル
の接続工法において、上記絶縁材料の加熱を上記押出機
に設けられた電熱加熱装置および超音波加熱装置の併用
により行なうことを特徴とするプラスチツク絶縁ケーブ
ルの接続工法。 ２ 絶縁材料の加熱を、最初電熱加熱装置で行ない、次
いで超音波加熱装置で行なう特許請求の範囲第１項に記
載のプラスチツク絶縁ケーブルの接続工法。[Claims] 1. An extruder is used to extrude an insulating material in a heated molten state into a mold placed around the conductor connection part of a cable in which conductors are connected to each other to form the conductor connection part. A method for connecting plastic insulated cables in which a predetermined insulating reinforcing body is extruded on the circumference, characterized in that the insulating material is heated by a combination of an electric heating device and an ultrasonic heating device provided in the extruder. Connection method for plastic insulated cables. 2. The method for connecting plastic insulated cables according to claim 1, wherein the insulating material is heated first with an electric heating device and then with an ultrasonic heating device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56104902A JPS6023475B2 (en) | 1981-07-03 | 1981-07-03 | Connection method of plastic insulated cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56104902A JPS6023475B2 (en) | 1981-07-03 | 1981-07-03 | Connection method of plastic insulated cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS587782A JPS587782A (en) | 1983-01-17 |
| JPS6023475B2 true JPS6023475B2 (en) | 1985-06-07 |
Family
ID=14393065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56104902A Expired JPS6023475B2 (en) | 1981-07-03 | 1981-07-03 | Connection method of plastic insulated cable |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6023475B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60198074A (en) * | 1984-03-19 | 1985-10-07 | 三菱電線工業株式会社 | Device for molding reinforced insulator of cable connector |
-
1981
- 1981-07-03 JP JP56104902A patent/JPS6023475B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS587782A (en) | 1983-01-17 |
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