JPH0614327Y2 - Connection part of metal foil composite tape for power cable - Google Patents
Connection part of metal foil composite tape for power cableInfo
- Publication number
- JPH0614327Y2 JPH0614327Y2 JP1988040869U JP4086988U JPH0614327Y2 JP H0614327 Y2 JPH0614327 Y2 JP H0614327Y2 JP 1988040869 U JP1988040869 U JP 1988040869U JP 4086988 U JP4086988 U JP 4086988U JP H0614327 Y2 JPH0614327 Y2 JP H0614327Y2
- Authority
- JP
- Japan
- Prior art keywords
- metal foil
- composite tape
- film
- power cable
- foil composite
- 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 - Lifetime
Links
Landscapes
- Insulated Conductors (AREA)
Description
【考案の詳細な説明】 〈産業上の利用分野〉 本考案は電力ケーブル用金属箔複合テープの接続部の改
良に関するものである。DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention relates to improvement of a connecting portion of a metal foil composite tape for a power cable.
〈従来の技術〉 遮水型プラスチック電力ケーブル(架橋ポリエチレン電
力ケーブル)においては、外部金属遮蔽層に遮水機能を
付与している。<Prior Art> In a water-impervious plastic power cable (cross-linked polyethylene power cable), an outer metal shielding layer has a water-impervious function.
かかる遮水型プラスチック電力ケーブルとして、金属箔
(例えば、鉛箔)の片面に絶縁性プラスチックフイルム
(例えば、ポリ塩化ビニルフイルム)を、他面に半導電
性プラスチックフイルム(例えば、カーボン混合ポリ塩
化ビニルフイルム)をそれぞれラミネートした金属箔複
合テープを、半導電性プラスチックフイルムを内側に向
けてケーブルコアの外部半導電性層に縦沿え被覆し、そ
の直上にプラスチックシース(塩化ビニルシース)を押
出被覆して、金属箔複合テープの重ね合せ箇所を押出時
の熱で熱融着(重ね合せ箇所は絶縁性プラスチックフイ
ルムの縁端と半導電性プラスチックフイルムの縁端との
重ね合せ)させると共に金属箔複合テープの絶縁性プラ
スチックフイルム面とプラスチックシース内面とを熱融
着せるものが公知である。As such a water-impervious plastic power cable, an insulating plastic film (for example, polyvinyl chloride film) is provided on one side of a metal foil (for example, lead foil), and a semiconductive plastic film (for example, carbon-mixed polyvinyl chloride film) is provided on the other side. A metal foil composite tape laminated with each film) is vertically coated on the outer semi-conductive layer of the cable core with the semi-conductive plastic film facing inward, and a plastic sheath (vinyl chloride sheath) is extrusion-coated directly on it. , The metal foil composite tape is heat-sealed by the heat at the time of extrusion (the overlapping part is overlapped with the edge of the insulating plastic film and the edge of the semi-conductive plastic film) and the metal foil composite tape Known to heat bond the insulating plastic film surface and the inner surface of the plastic sheath. A.
上記金属箔複合テープにおいては、ケーブルに対する電
気的遮蔽機能を達成するために、ケーブル全長またはケ
ーブルスパン間にわたって電気的に導通状態になければ
ならず、金属箔複合テープの接続部においても、その電
気的導通性を確保するために、従来においては、第3図
に示すように、両複合テープ1a′,1b′(12′は
絶縁性プラスチックフイルム、11′は金属箔、13′
は半導電性プラスチックフイルム)の端部を重ね合せ、
これら重合部において金属箔を露出させ、これらの露出
金属箔部分15a′,15b′を半田2′で接合してい
る。In the above-mentioned metal foil composite tape, in order to achieve the electrical shielding function for the cable, it must be in an electrically conducting state over the entire length of the cable or between the cable spans, and even at the connecting portion of the metal foil composite tape, the electrical conductivity thereof must be maintained. In order to ensure the electrical continuity, conventionally, as shown in FIG. 3, both composite tapes 1a 'and 1b' (12 'is an insulating plastic film, 11' is a metal foil, 13 ').
Is a semi-conductive plastic film)
The metal foil is exposed at these overlapping portions, and these exposed metal foil portions 15a 'and 15b' are joined by solder 2 '.
〈解決しようとする課題〉 しかしながら、接合箇所は、半田のために剛性が大であ
り、この高剛性部分に金属箔複合テープ(低剛性)が直
結し、両者の境界での剛性変化が急峻であるために、そ
の境界における応力集中が顕著であって、接合箇所が破
損し易い。<Problems to be solved> However, the joint has a high rigidity due to the solder, and the metal foil composite tape (low rigidity) is directly connected to this high rigidity portion, and the rigidity change at the boundary between the two is sharp. Because of this, the stress concentration at the boundary is significant, and the joint is easily damaged.
本考案の目的は、応力集中を充分に軽減できる金属箔複
合テープの接続部を提供することにある。An object of the present invention is to provide a connecting portion of a metal foil composite tape capable of sufficiently reducing stress concentration.
〈課題を解決するための手段〉 本考案に係る電力ケーブル用金属箔複合テープの接続部
は、金属箔の片面に絶縁性フイルムを、他面に半導電性
フイルムをそれぞれラミネートした互に接合すべき複合
テープにおける一方の複合テープの一端部の半導電性フ
イルム面を、他方の複合テープの他端部の絶縁性フイル
ム面に対面させ、上記一端部の半導電性フイルム面を末
端から所定長さ隔てた部分において除去して金属箔を露
出させ、上記他端部の絶縁性フイルム面を末端から所定
長さ隔てた部分において除去して金属箔を露出させ、こ
れらの露出された金属箔部分を半田で接合し、その接合
部前後の絶縁性フイルムと半導電性フイルムとの接触面
を熱融着させたことを特徴とする構成である。<Means for Solving the Problems> The connection portion of the metal foil composite tape for power cables according to the present invention is formed by bonding an insulating film on one side of a metal foil and a semiconductive film on the other side, and joining them together. The semi-conductive film surface of one end of one composite tape in the composite tape to be faced faces the insulating film surface of the other end of the other composite tape, and the semi-conductive film surface of the one end is a predetermined length from the end. The metal foil is exposed by removing the metal foil at a separated portion, and the metal foil is exposed by removing the insulating film surface at the other end by a predetermined distance from the end, and these exposed metal foil portions are exposed. Is joined by solder, and the contact surfaces of the insulating film and the semiconductive film before and after the joining portion are heat-sealed.
〈実施例の説明〉 以下、図面により本考案を説明する。<Description of Embodiments> The present invention will be described below with reference to the drawings.
第1図は本考案の一実施例を示す上面図、第2図は第1
図におけるII−II断面図である。FIG. 1 is a top view showing an embodiment of the present invention, and FIG.
It is a II-II sectional view in the drawing.
図において、1a,1bは互に接合すべき電力ケーブル
用金属箔複合テープであり、金属箔11(例えば、アル
ミ箔、鉛箔)の片面に絶縁性プラスチックフイルム12
(例えば、ポリ塩化ビニルフイルム、ポリエチレンフイ
ルム)を、他面に半導電性フイルム13(例えばカーボ
ン混合ポリ塩化ビニルフイルム)をそれぞれラミネート
してある。各複合テープの末端は斜めにカットしてあ
り、その角度は30〜60°好ましくは45°である。
一方の複合テープ1a一端部の半導電性フイルム面と他
方の複合テープ1bの他端部の絶縁性フイルム面とが互
に対面している。In the figure, 1a and 1b are metal foil composite tapes for power cables to be joined together, and an insulating plastic film 12 is provided on one side of a metal foil 11 (eg, aluminum foil, lead foil).
(For example, polyvinyl chloride film, polyethylene film), and a semi-conductive film 13 (for example, carbon mixed polyvinyl chloride film) is laminated on the other surface. The end of each composite tape is cut diagonally, and the angle is 30 to 60 °, preferably 45 °.
The semiconductive film surface at one end of the one composite tape 1a and the insulating film surface at the other end of the other composite tape 1b face each other.
15aは一端部の半導電性フイルム面を除去して金属箔
を露出させた部分であり、この露出部分15a(巾は通
常約10〜100mm)は上記斜めカットに対応して斜め
向きである。15bは他端部の絶縁性フイルム面を除去
して金属箔を露出させた部分であり、この露出部分15
bは上記露出部分15aに完全に上下に重って空間を形
成し、これらの金属箔露出部分15a,15bが、この
空間に装填した半田2(半田体積は空間容積に等しい)
によって接合されている。この接合部前後の互に接する
半導電性フイルム面131a,(132a)と絶縁性フ
イルム面121b,(122b)とは熱融着されてい
る。Reference numeral 15a is a portion where the semiconductive film surface at one end is removed to expose the metal foil, and the exposed portion 15a (width is usually about 10 to 100 mm) is diagonally oriented corresponding to the diagonal cut. 15b is a portion where the insulating film surface at the other end is removed to expose the metal foil.
b completely overlaps the exposed portion 15a vertically to form a space, and these metal foil exposed portions 15a and 15b are the solder 2 loaded in this space (the solder volume is equal to the space volume).
Are joined by. The semi-conductive film surfaces 131a and (132a) and the insulating film surfaces 121b and (122b) that are in contact with each other before and after the joining portion are heat-sealed to each other.
この場合、融着にあたっては、金属箔露出部分15a,
15b間に半田2を介在させ、接合部を離型紙で挟み、
プレス等によって、例えば150℃×5分×5kg/cm2
の条件(この条件は、、絶縁性プラスチックフイルム、
半導電性プラスチックフイルムの材質等に応じて設定す
る)で加熱加圧すればよい。In this case, the metal foil exposed portion 15a,
The solder 2 is interposed between 15b, the joint is sandwiched by release paper,
Depending on the press, for example, 150 ℃ x 5 minutes x 5kg / cm 2
Conditions (This condition is for insulating plastic film,
The pressure may be set according to the material of the semiconductive plastic film).
〈考案の効果〉 本考案に係る電力ケーブル用金属箔複合テープの接続部
は上述した通りの構成であり、半田接合箇所の両側に複
合テープの二枚部分が存在し、複合テープ(一枚であ
り、低剛性)と半田接合箇所(高剛性)との間の剛性変
化がこの二枚部分(中剛性)の介在のために緩慢になる
から、応力集中をよく緩和でき、接合部の破損を良好に
防止できる。また、半田接合部の両側部分を熱融着して
あり、この融着箇所の外力負担分だけ、半田接合面積を
小さくできるから、半田接合部をそれぞれ小型化でき
る。<Effects of the Invention> The connecting portion of the metal foil composite tape for power cable according to the present invention is configured as described above, and there are two parts of the composite tape on both sides of the solder joint portion. Yes, the rigidity change between the low rigidity) and the solder joint (high rigidity) becomes slow due to the interposition of these two parts (medium rigidity), so stress concentration can be relaxed well and damage to the joint can be prevented. It can be prevented satisfactorily. Further, since both sides of the solder joint are heat-sealed, and the solder joint area can be reduced by the amount of external force of the welded portion, the solder joints can be downsized.
第1図は本考案に係る電力ケーブル用金属箔複合テープ
の接続部を示す上面図、第2図は第1図におけるII−II
断面図、第3図は従来例を示す説明図である。 図において、1a,1bは複合テープ、11は金属箔、
12は絶縁性フイルム、13は半導電性フイルム、12
1b,122bは絶縁性フイルム面、131a,132
aは半導電性フイルム面、15a,15bは露出金属箔
部分、2は半田である。FIG. 1 is a top view showing a connecting portion of a metal foil composite tape for a power cable according to the present invention, and FIG. 2 is a II-II in FIG.
A sectional view and FIG. 3 are explanatory views showing a conventional example. In the figure, 1a and 1b are composite tapes, 11 is a metal foil,
12 is an insulating film, 13 is a semi-conductive film, 12
Reference numerals 1b and 122b denote insulating film surfaces, and 131a and 132b.
a is a semiconductive film surface, 15a and 15b are exposed metal foil portions, and 2 is solder.
Claims (1)
半導電性フイルムをそれぞれラミネートした互に接合す
べき複合テープにおける一方の複合テープの一端部の半
導電性フイルム面を、他方の複合テープの他端部の絶縁
性フイルム面に対面させ、上記一端部の半導電性フイル
ム面を末端から所定長さ隔てた部分において除去して金
属箔を露出させ、上記他端部の絶縁性フイルム面を末端
から所定長さ隔てた部分において除去して金属箔を露出
させ、これらの露出された金属箔部分を半田で接合し、
その接合部前後の絶縁性フイルムと半導電性フイルムと
の接触面を熱融着させたことを特徴とする電力ケーブル
用金属箔複合テープの接続部。1. A composite foil in which an insulating film is laminated on one surface of a metal foil and a semiconductive film is laminated on the other surface to be bonded to each other. Facing the insulating film surface of the other end of the composite tape, and removing the semiconductive film surface of the one end at a portion separated by a predetermined length from the end to expose the metal foil, and insulating the other end. To remove the metal foil by removing the flexible film surface at a portion separated from the end by a predetermined length, and joining the exposed metal foil portions with solder,
A connecting portion of a metal foil composite tape for a power cable, characterized in that the contact surfaces of the insulating film and the semiconductive film before and after the joining portion are heat-sealed.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1988040869U JPH0614327Y2 (en) | 1988-03-28 | 1988-03-28 | Connection part of metal foil composite tape for power cable |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1988040869U JPH0614327Y2 (en) | 1988-03-28 | 1988-03-28 | Connection part of metal foil composite tape for power cable |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH01143028U JPH01143028U (en) | 1989-09-29 |
JPH0614327Y2 true JPH0614327Y2 (en) | 1994-04-13 |
Family
ID=31267327
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1988040869U Expired - Lifetime JPH0614327Y2 (en) | 1988-03-28 | 1988-03-28 | Connection part of metal foil composite tape for power cable |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0614327Y2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5503425B2 (en) * | 2010-06-21 | 2014-05-28 | 古河電気工業株式会社 | Shielded wire and method for manufacturing shielded wire |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63172017U (en) * | 1987-04-30 | 1988-11-09 |
-
1988
- 1988-03-28 JP JP1988040869U patent/JPH0614327Y2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH01143028U (en) | 1989-09-29 |
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