JPS6134816A - Method of producing water feed preventive power cable - Google Patents
Method of producing water feed preventive power cableInfo
- Publication number
- JPS6134816A JPS6134816A JP15655084A JP15655084A JPS6134816A JP S6134816 A JPS6134816 A JP S6134816A JP 15655084 A JP15655084 A JP 15655084A JP 15655084 A JP15655084 A JP 15655084A JP S6134816 A JPS6134816 A JP S6134816A
- Authority
- JP
- Japan
- Prior art keywords
- cable
- compound
- watertight
- watertight compound
- water
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 19
- 238000000034 method Methods 0.000 title claims description 9
- 230000003449 preventive effect Effects 0.000 title 1
- 150000001875 compounds Chemical class 0.000 claims description 30
- 239000002184 metal Substances 0.000 claims description 10
- 229910052751 metal Inorganic materials 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 230000002265 prevention Effects 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 description 7
- GLGNXYJARSMNGJ-VKTIVEEGSA-N (1s,2s,3r,4r)-3-[[5-chloro-2-[(1-ethyl-6-methoxy-2-oxo-4,5-dihydro-3h-1-benzazepin-7-yl)amino]pyrimidin-4-yl]amino]bicyclo[2.2.1]hept-5-ene-2-carboxamide Chemical compound CCN1C(=O)CCCC2=C(OC)C(NC=3N=C(C(=CN=3)Cl)N[C@H]3[C@H]([C@@]4([H])C[C@@]3(C=C4)[H])C(N)=O)=CC=C21 GLGNXYJARSMNGJ-VKTIVEEGSA-N 0.000 description 6
- 229940125758 compound 15 Drugs 0.000 description 6
- 239000004020 conductor Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 229920003020 cross-linked polyethylene Polymers 0.000 description 2
- 239000004703 cross-linked polyethylene Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000007765 extrusion coating Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 239000004745 nonwoven fabric Substances 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- ONBQEOIKXPHGMB-VBSBHUPXSA-N 1-[2-[(2s,3r,4s,5r)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]oxy-4,6-dihydroxyphenyl]-3-(4-hydroxyphenyl)propan-1-one Chemical compound O[C@@H]1[C@H](O)[C@@H](CO)O[C@H]1OC1=CC(O)=CC(O)=C1C(=O)CCC1=CC=C(O)C=C1 ONBQEOIKXPHGMB-VBSBHUPXSA-N 0.000 description 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- IDCBOTIENDVCBQ-UHFFFAOYSA-N TEPP Chemical compound CCOP(=O)(OCC)OP(=O)(OCC)OCC IDCBOTIENDVCBQ-UHFFFAOYSA-N 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 229940126142 compound 16 Drugs 0.000 description 1
- 229940126214 compound 3 Drugs 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 230000009969 flowable effect Effects 0.000 description 1
- 235000015110 jellies Nutrition 0.000 description 1
- 239000008274 jelly Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- 238000004804 winding Methods 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１
本発明は、ケーブルコアとケーブルシース間に水密］ン
パウンドを充填することによりケーブル内部への水の浸
入を防止した走水防止形電力ケーブルの製造方法に関す
る。Detailed Description of the Invention [Technical Field of the Invention 1] The present invention relates to the production of a water-tight power cable that prevents water from entering inside the cable by filling a watertight compound between a cable core and a cable sheath. Regarding the method.
［発明の技術的背景とその問題点］
従来から、架橋ポリエチレン絶縁ケーブル等の電カケー
プルとしては、導体外周に絶縁体、外部半導電層、金属
遮蔽層、ケーブルシースを順に形成してなるものが一般
に使用されている。[Technical background of the invention and its problems] Conventionally, electrical cables such as cross-linked polyethylene insulated cables have been made by sequentially forming an insulator, an external semiconductive layer, a metal shielding layer, and a cable sheath around the outer periphery of a conductor. Commonly used.
このような電カケープルにおいては、最外層のケーブル
シースが何らかの原因で損傷を受け、その部位から水が
浸入した場合に、水がケーブルシース内を走水してケー
ブルコアが全長にわたって浸水し、その結果、ケーブル
の長期信頼性を著しく低下させるという欠点があった。In such power cables, if the outermost cable sheath is damaged for some reason and water infiltrates from that area, the water runs inside the cable sheath and submerges the entire length of the cable core, causing damage to the cable sheath. As a result, there was a drawback in that the long-term reliability of the cable was significantly reduced.
そのため、特にこのような走水を防止する必要がある場
合には、ケーブルコアとケーブルシース間に、水密コン
パウンドを充填した走水防止形電力ケーブルが使用され
ている。Therefore, especially when it is necessary to prevent such water running, a water running prevention type power cable filled with a watertight compound between the cable core and the cable sheath is used.
ちなみに、通信ケーブルでは、従来がら内部の空隙を水
密コンパウンドで充填した走水防止形のものが使用され
ており、また、海底電線においては導体索線間に水密コ
ンパウンドを充填した水密導体等が使用されている。By the way, communication cables have traditionally been of the water-tight type, with the internal voids filled with a watertight compound, and submarine cables have used watertight conductors filled with a watertight compound between the conductor cables. has been done.
しかしながら、これらの従来技術では、上述の走水防止
形質カケープルとして優れた水密性を有するケーブルの
製造は困難で、特に金属遮蔽層がワイヤーシールドで構
成されている場合には、第２図に示すように、ケーブル
コア１上のワイヤーシールド２の裏側にまで水密コンパ
ウンド３がまわり込まず、ワイヤーシールド２の裏側に
長手方向に連続した空隙部Ｖが生じてしまい、この部分
で走水が起きるという問題があった。However, with these conventional techniques, it is difficult to manufacture a cable with excellent watertightness as the above-mentioned anti-water running cable. Especially when the metal shielding layer is composed of a wire shield, it is difficult to manufacture a cable with excellent watertightness as shown in Fig. 2. As shown in the figure, the watertight compound 3 does not go around to the back side of the wire shield 2 on the cable core 1, and a continuous void V is created in the longitudinal direction on the back side of the wire shield 2, and water running occurs in this part. There was a problem.
［発明の目的］
本発明はこのような従来の事情に対処してなされたもの
で、ケーブルコアの金属遮蔽層の裏側にまで水密］ンパ
ウンドを十分に充填させて、ケーブル内部への水の浸入
を完全に防止した走水防止形質カケープルを製造づる方
法を提供しようとするものである。[Purpose of the Invention] The present invention has been made in response to the above-mentioned conventional circumstances, and it is possible to prevent water from penetrating into the inside of the cable by sufficiently filling the back side of the metal shielding layer of the cable core with watertight compound. The purpose of the present invention is to provide a method for producing a capule with anti-hydrotactic properties that completely prevents water running.
［発明の概要」
ｔなわら本発明の走水防止形質カケープルの製造方法は
、ケーブルコアの外周に形成された金属遮蔽層上に、基
材テープの片面もしくは両面に水密コンパウンドが塗布
された水密コンパウンド付着テープを、水密コンパウン
ド塗布面を内側にして縦添被覆し、次いでこの縦添えさ
れたテープを加熱して水密コンパウンドを金属遮蔽層の
裏側にまで十分に充填させた後、その外周にケーブルシ
ースを押出被覆することを特徴としている。[Summary of the Invention] The method for manufacturing the anti-water running capeple of the present invention is a watertight cable in which a watertight compound is applied to one or both sides of a base tape on a metal shielding layer formed on the outer periphery of a cable core. The compound adhesion tape is coated vertically with the watertight compound application side inside, and then the vertically applied tape is heated to fully fill the watertight compound to the back side of the metal shielding layer. It is characterized by extrusion coating of the sheath.
本発明に使用される水密コンパウンドとしては、低分子
ポリオレフィンに石油系ゼリーを混合した組成物のよう
な公知の各種ゼリー状あるいはゴム状水密コンパウンド
を使用することができる。As the watertight compound used in the present invention, various known jelly-like or rubber-like watertight compounds, such as a composition obtained by mixing a low-molecular-weight polyolefin with a petroleum-based jelly, can be used.
またこれらの水密コンパウンドは、１００℃以下で、か
つ使用温度を越える軟化点を有するものが適している。Also, suitable watertight compounds have a softening point of 100° C. or lower and higher than the operating temperature.
さらに、基材テープどしては、水密コンパウンドののり
がよく、可撓性の良好なものが適しており、例えば綿布
、アセテート布、ナイロン、ポリエステル、ポリエチレ
ンからなるテープまたは不織布を使用することができる
。Furthermore, as the base tape, a watertight compound with good adhesion and flexibility is suitable; for example, tapes or nonwoven fabrics made of cotton cloth, acetate cloth, nylon, polyester, or polyethylene can be used. can.
基材テープに塗布される水密コンパウンドの厚さは１〜
２１■程度が適当である。The thickness of the watertight compound applied to the base tape is 1~
Approximately 21■ is appropriate.
以下本発明方法を図面により説明する。The method of the present invention will be explained below with reference to the drawings.
第１図は本発明方法の一実施例を説明する図である。FIG. 1 is a diagram illustrating an embodiment of the method of the present invention.
第１図に示すように、本利明においては、まず金属遮蔽
層としてワイヤーシールド層が形成されたケーブルコア
１１上に、テープ送出′ａ１２から供給されたナイロン
、テトロン等の不織布からなる基材アープ１３の片面に
加熱ローラ１４により水密コンパウンド１５が塗布され
た水密コンパウンド付着テープ１６が、水密コンパウン
ド１５付着面を内側にして縦添被覆される。なお、符号
１７はテープを案内するガイドローラ、ｄは水密コンパ
ウンドの厚さを一定にするだめのドクターブレードであ
る。As shown in FIG. 1, in the present Toshiaki, first, a base material arp made of a non-woven fabric such as nylon or Tetron supplied from a tape delivery 'a12 is placed on a cable core 11 on which a wire shield layer is formed as a metal shield layer. A watertight compound adhesion tape 16 on one side of which is coated with watertight compound 15 by a heating roller 14 is vertically applied and coated with the surface to which the watertight compound 15 is applied inside. Note that reference numeral 17 is a guide roller for guiding the tape, and d is a doctor blade for keeping the thickness of the watertight compound constant.
次いで例えば電熱による加熱装置１８により水密コンパ
ウンド付着テープ１Ｇがその外側から加熱される。この
加熱により水密コンパウンド１５の粘麿が低下し、ケー
ブルコア１１のワイヤーシールド層を構成する各銅線の
裏側にまで水密コンパウンド１５が隙間なく充填される
。Next, the watertight compound adhesive tape 1G is heated from the outside by, for example, an electric heating device 18. This heating reduces the viscosity of the watertight compound 15, so that the watertight compound 15 is filled without any gaps even to the back side of each copper wire that constitutes the wire shield layer of the cable core 11.
この状態で、すなわち水密コンパウンド１５がまだ溶融
状態にある間に、塩化ビニル樹脂等のプ、ラスチックシ
ース１９が押出１２０により押出被覆され、しかる後、
巻取機（図示せず）により巻取られて走水防止形質カケ
ープルが製造される。In this state, that is, while the watertight compound 15 is still in a molten state, a plastic sheath 19 made of vinyl chloride resin or the like is extrusion coated by an extrusion 120, and then,
It is wound up by a winding machine (not shown) to produce an anti-water running capsule.
第３図は以上のようにして製造された走水防止形質カケ
ープルを示す横断面図で、ケーブルコア１１とプラスデ
ック、シース１９間にはワイヤーシールド層２１の銅線
裏側にまで空隙なく水密コンパウンド１５が充填されて
いる。FIG. 3 is a cross-sectional view showing the anti-hydraulic cable manufactured as described above, in which a water-tight compound is applied between the cable core 11, the plus deck, and the sheath 19 without any gaps even to the back side of the copper wire of the wire shield layer 21. 15 is filled.
なお、上記実施例においで、加熱装置１８による水密コ
ンパウンド１５の溶ＩＩＩおよび充填をより確実なもの
にするために、加熱装置１８に入る直前に押えテープを
横巻して加熱を行ない、プラスチックシース１９の押出
被覆直前にこのテープを除去するようにしてもよい。In the above embodiment, in order to ensure the melting and filling of the watertight compound 15 by the heating device 18, immediately before entering the heating device 18, the presser tape is horizontally wound and heated, and the plastic sheath is heated. This tape may be removed just before extrusion coating in step 19.
また、本発明においては、水密コンパウンド付着チー７
１６として、加熱により溶融する常温で非流動性の水密
コンパウンドを基材テープ上に厚さ１〜２酊程度塗布し
たものを使用するようにしてもよい。In addition, in the present invention, the watertight compound adhesion team 7
As No. 16, a watertight compound that is non-flowable at room temperature and melts when heated may be applied onto the base tape to a thickness of about 1 to 2 cm.
［発明の実施例］ 以下本発明の実施例について説明する。[Embodiments of the invention] Examples of the present invention will be described below.
実施例
導体上に常法により架橋ポリエチレン絶縁体、外部半導
電層を順に形成し、さらにこの上にワイヤーシールド層
を形成した後、その外周に片面に２証の水密コンパウン
ド層が形成された水密コンパウンド付着テープを縦添被
覆し、次いでこれを加熱装置に通過させて水密コンパウ
ンドをワイヤーシールド層の裏側にまで完全に充填した
後、その外周に塩化ビニル樹脂シースを押出被覆して６
６ ｋＶ、４００−クラスの走水防止効果橋ポリエチレ
ン絶縁ケーブルを製造した。Example: After forming a cross-linked polyethylene insulator and an external semiconductive layer in order on the conductor by a conventional method, and further forming a wire shield layer on top of this, a watertight compound layer of 2 proofs was formed on one side around the outer periphery. The compound adhesion tape is coated vertically, and then passed through a heating device to completely fill the watertight compound to the back side of the wire shield layer, and then a vinyl chloride resin sheath is extruded and coated on the outer periphery.
A 6 kV, 400-class anti-water running bridge polyethylene insulated cable was manufactured.
次いでこのケーブルの水密性、すなわち、走水防止効果
を確認するために、２ｍのケーブルの片端より水圧０．
５ｋｇ／−を加えて他端からの漏水の有無を調べたとこ
ろ、２４時間を経過してもまつたく漏水することはなか
った。Next, in order to confirm the watertightness of this cable, that is, its water-tightness prevention effect, a water pressure of 0.0 mm was applied from one end of the 2 m long cable.
When 5 kg/- was added to check for water leakage from the other end, no water leaked even after 24 hours.
［発明の効果］
以上説明したように本発明によれば、水密コンパウンド
を金属遮蔽層の裏側にまで隙間なく充填できるので、ケ
ーブル内部への水の浸入を完全に防止し得る水密性に優
れた走水防止形電力ケーブルを製造することができる。[Effects of the Invention] As explained above, according to the present invention, the watertight compound can be filled to the back side of the metal shielding layer without any gaps, resulting in excellent watertightness that can completely prevent water from entering inside the cable. Water running prevention type power cables can be manufactured.
第１図は本発明方法の一実施例を説明する図、第２図は
従来の走水防止形電力ケーブルの一例を示す部分断面図
、第３図は本発明方法により製造された走水防止形電力
ケーブルの一例を示す部分断面図である。
１１・・・・・・・・・・・・ケーブルコア１２・・・
・・・・・・・・・テープ送出機１３・・・・・・・・
・・・・基材テープ１４・・・・・・・・・・・・加熱
ローラ１５・・・・・・・・・・・・水密コンパウンド
１６・・・・・・・・・・・・水密コンパウンド付着テ
ープ１８・・・・・・・・・・・・加熱装置１９・・・
・・・・・・・・・プラスチックシース２０・・・・・
・・・・・・・押出機
２１・・・・・・・・・・・・ワイヤーシールド層代理
人弁理士 須 山 佐 −
（ばか１名）
第１図Fig. 1 is a diagram illustrating an embodiment of the method of the present invention, Fig. 2 is a partial sectional view showing an example of a conventional water-running prevention type power cable, and Fig. 3 is a diagram illustrating a water-running prevention type manufactured by the method of the present invention. FIG. 2 is a partial cross-sectional view showing an example of a shaped power cable. 11... Cable core 12...
......Tape feeder 13...
...Base tape 14...Heating roller 15...Watertight compound 16... Watertight compound adhesive tape 18...Heating device 19...
......Plastic sheath 20...
...... Extruder 21 ...... Wire shield layer Patent attorney Suyama Sa - (1 idiot) Figure 1
Claims (2)
、基材テープの片面もしくは両面に水密コンパウンドが
塗布された水密コンパウンド付着テープを、水密コンパ
ウンド塗布面を内側にして縦添被覆し、次いでこの縦添
えされたテープを加熱して水密コンパウンドを金属遮蔽
層の裏側にまで十分に充填させた後、その外周にケーブ
ルシースを押出被覆することを特徴とする走水防止形電
力ケーブルの製造方法。(1) On the metal shielding layer formed on the outer periphery of the cable core, a watertight compound adhesion tape, in which watertight compound is applied to one or both sides of the base tape, is coated vertically with the watertight compound coated side inside, Next, the vertically attached tape is heated to sufficiently fill the back side of the metal shielding layer with a watertight compound, and then a cable sheath is extruded and coated on the outer periphery of the water-tight compound. Method.
特許請求の範囲第１項記載の走水防止形電力ケーブルの
製造方法。(2) The method for manufacturing a water running prevention type power cable according to claim 1, wherein the metal shielding layer is constituted by a wire shield.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15655084A JPS6134816A (en) | 1984-07-27 | 1984-07-27 | Method of producing water feed preventive power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15655084A JPS6134816A (en) | 1984-07-27 | 1984-07-27 | Method of producing water feed preventive power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6134816A true JPS6134816A (en) | 1986-02-19 |
Family
ID=15630245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15655084A Pending JPS6134816A (en) | 1984-07-27 | 1984-07-27 | Method of producing water feed preventive power cable |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6134816A (en) |
-
1984
- 1984-07-27 JP JP15655084A patent/JPS6134816A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3607487A (en) | Waterproof electrical cable | |
| US6246006B1 (en) | Shielded cable and method of making same | |
| US4360704A (en) | Moisture proof electrical cable | |
| US4803309A (en) | Electrical cable with open helix screen wires electrically contacting a longitudinal wire and manufacture thereof | |
| US4626619A (en) | Water impervious rubber or plastic insulated power cable | |
| US3610814A (en) | Spiral-four quad structure | |
| US3638306A (en) | Method of making a communications cable | |
| US4481259A (en) | Electric cable with insulation of biaxially oriented, polymeric tape with a coating of grease | |
| EP0024631A1 (en) | Electric cable with improved water-block | |
| JPS6134816A (en) | Method of producing water feed preventive power cable | |
| GB2164198A (en) | Cables | |
| JPS6134512A (en) | Waterproof cable | |
| JP2000341841A (en) | Method and structure for cutting off water for electric cable terminal connecting part | |
| JPH033935Y2 (en) | ||
| JPS6035930Y2 (en) | Waterproof structure of non-sheathed cable | |
| CN218826325U (en) | Axial water-blocking cable | |
| JPH04126621U (en) | Waterproof rubber/plastic insulated power cable | |
| JP2590702Y2 (en) | Waterproof shielding composite tape and waterproof type power cable using the same | |
| JPS6134815A (en) | Method of producing water feed preventive power cable | |
| GB2030757A (en) | An electric cable | |
| JPH0231696Y2 (en) | ||
| JPS587712A (en) | Water feed preventive type communication cable | |
| GB1299361A (en) | Improvements in or relating to telecommunication cables | |
| CN113936857A (en) | Rat-proof and termite-proof cable and preparation method thereof | |
| RU60778U1 (en) | ELECTRIC COMMUNICATION CABLE (OPTIONS) |