JPS6271116A - Drying method for cable core - Google Patents
Drying method for cable coreInfo
- Publication number
- JPS6271116A JPS6271116A JP21165585A JP21165585A JPS6271116A JP S6271116 A JPS6271116 A JP S6271116A JP 21165585 A JP21165585 A JP 21165585A JP 21165585 A JP21165585 A JP 21165585A JP S6271116 A JPS6271116 A JP S6271116A
- Authority
- JP
- Japan
- Prior art keywords
- cable core
- cable
- drying method
- drum
- heating element
- 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.)
- Pending
Links
- 238000001035 drying Methods 0.000 title claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 9
- 238000004804 winding Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 8
- 229920003020 cross-linked polyethylene Polymers 0.000 description 3
- 239000004703 cross-linked polyethylene Substances 0.000 description 3
- 239000012212 insulator Substances 0.000 description 3
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 2
- 229920002554 vinyl polymer Polymers 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Manufacturing Of Electric Cables (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
（発明の技術分野）
本発明はケーブルコアの乾燥時間を短縮できるケーブル
コアの乾燥方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Technical Field of the Invention) The present invention relates to a cable core drying method that can shorten the cable core drying time.
（発明の技術的背景とその問題点）
一般に、１５４ ｋＶクラスの架橋ポリエチレン絶縁ビ
ニルシースケーブル（Ｃｖケーブル）においては、絶縁
体を架橋する際に絶縁体中にメタンガスが生成される。(Technical background of the invention and its problems) Generally, in a 154 kV class crosslinked polyethylene insulated vinyl sheath cable (Cv cable), methane gas is generated in the insulator when the insulator is crosslinked.
このメタンガスは徐々に外部に放散され、最終的には架
橋ポリエチレン１２当たり０．１ｍｌ以下と／ｌ：るが
、充分にメタンガスが放の逃げ場がなく ２１す、結果
的にＣｖケーブルのビニルシースを膨らませてしまう不
都合がある。This methane gas is gradually dissipated to the outside, and the final amount is less than 0.1 ml/l per cross-linked polyethylene 12. However, there is no place for the methane gas to escape, and as a result, the vinyl sheath of the Cv cable is swollen. There is an inconvenience.
このため、従来においては１５４ ｋＶクラスのＣＶケ
ーブルを、１３〜１４日程度、高温にて乾燥処理し、絶
縁体中のメタンガスを扱くことか行なわれている。For this reason, conventionally, 154 kV class CV cables are dried at high temperatures for about 13 to 14 days to deal with the methane gas in the insulators.
一方、Ｃｖケーブルの絶縁ケーブルコアは通常、架橋さ
れた後冷却されてからドラムに巻取されるのでケーブル
コアのドラムへの巻取時においてはケーブルコアが常湿
まで下降している。従って、現状では、Ｃｖケーブルの
コアを高温乾燥するためには、再度加熱１稈が必要とな
り、実質的に乾燥処理時間がＪｋ くなる短点かあった
。On the other hand, the insulated cable core of a Cv cable is usually cross-linked, cooled, and then wound onto a drum, so that the cable core has been lowered to normal humidity when it is wound onto the drum. Therefore, at present, in order to dry the core of the Cv cable at high temperature, it is necessary to heat one culm again, which has the disadvantage that the drying process time is actually reduced to Jk.
（イ６明の目的）
本発明はこのような点に着目してなされたもので、ケー
ブルコアの乾燥処理時間を大幅に短縮できるケーブルコ
アの乾燥方法を提供せんとするものである。(Purpose of A6) The present invention has been made with attention to such points, and it is an object of the present invention to provide a method for drying a cable core that can significantly shorten the drying time of the cable core.
（発明の概要）
すなわち、本発明に係るケーブルコアの乾燥方法ハケー
プルコアをドラムに巻取する際に、ケーブルコアの巻回
肋間に発熱体を介挿し、この発熱体３発熱させておくこ
とによりケーブルコアの乾Ｑ時間を短縮させるものであ
る。(Summary of the Invention) That is, the cable core drying method according to the present invention involves inserting a heating element between the winding ribs of the cable core when winding the cable core onto a drum, and causing the heating element 3 to generate heat. This shortens the dry Q time of the core.
（発明の実ｈ＾例）
以下、本発明を一実施例の図面に基づいて説明する。図
面において、ケーブルの生成品例えばＣＶケーブルのケ
ーブルコア１は例えば導体上に順次内部半導電層、架橋
ポリエチレン絶縁層および外部半導電層をいわゆる三層
同時押出方式によって被擬したもので形成されている。(Example of the Invention) The present invention will be described below based on the drawings of one embodiment. In the drawings, a cable product, for example, a cable core 1 of a CV cable, is formed by sequentially applying an inner semiconducting layer, a crosslinked polyethylene insulating layer, and an outer semiconducting layer on a conductor by a so-called three-layer coextrusion method. There is.
しかして、このケーブルコア１は、ドラム２に巻取され
ることになるが、本発明においては、ドラム２′＼の巻
取の際にケーブルコア１の巻回層間に電気毛布等より成
るシート状の発熱体３が介挿される。この発熱体３はド
ラム２の巻胴４周上、ｒ″、板５の内側およびケーブル
コア１の最外層にも巻くことか望ましい。This cable core 1 is then wound around the drum 2. In the present invention, when the drum 2'\ is wound, a sheet made of an electric blanket or the like is placed between the winding layers of the cable core 1. A heating element 3 having a shape is inserted. It is preferable that the heating element 3 is wound on the four circumferences of the drum 2, r'', inside the plate 5, and also on the outermost layer of the cable core 1.
上記発熱体３は、ケーブルコア１のドラム２への；り゛
双曲に発熱しておくこともできるが、巻取中もしくは巻
取後に発熱させてもよい。The heating element 3 can hyperbolically generate heat when the cable core 1 is directed to the drum 2, but it may also generate heat during or after winding.
なお、図中６はリード線７を介して発熱体を発熱する電
源、８はアース腺を示している。In the figure, 6 indicates a power source that generates heat in the heating element via a lead wire 7, and 8 indicates a ground gland.
（発明の効果）
以上述べたように本発明においては、ドラムに巻取され
たケーブルコアが発熱体により暖められているので、ケ
ーブルコアか常温に下がるのを防止することができる。(Effects of the Invention) As described above, in the present invention, since the cable core wound around the drum is warmed by the heating element, it is possible to prevent the cable core from dropping to room temperature.
従って本発明においては、一旦、常温に下がってからケ
ーブルコアを乾燥室に入れて乾燥処理する従来の乾燥方
法に比し、乾燥処理時間を大幅に短縮することができる
。Therefore, in the present invention, the drying time can be significantly shortened compared to the conventional drying method in which the cable core is placed in a drying chamber and dried after the cable core has cooled to room temperature.
図面は、本発明の実弛状況を示す説明図である。 The drawing is an explanatory diagram showing the actual relaxation situation of the present invention.
Claims (1)
巻回層間に発熱体を介挿し、この発熱体を発熱させるこ
とによりケーブルコアを乾燥させることを特徴とするケ
ーブルコアの乾燥方法。A method for drying a cable core, which comprises inserting a heating element between the winding layers of the cable core when winding the cable core onto a drum, and drying the cable core by causing the heating element to generate heat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21165585A JPS6271116A (en) | 1985-09-25 | 1985-09-25 | Drying method for cable core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21165585A JPS6271116A (en) | 1985-09-25 | 1985-09-25 | Drying method for cable core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6271116A true JPS6271116A (en) | 1987-04-01 |
Family
ID=16609391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21165585A Pending JPS6271116A (en) | 1985-09-25 | 1985-09-25 | Drying method for cable core |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6271116A (en) |
-
1985
- 1985-09-25 JP JP21165585A patent/JPS6271116A/en active Pending
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