JPS60213910A - Anchoring device of submarine optical cable - Google Patents

Anchoring device of submarine optical cable

Info

Publication number
JPS60213910A
JPS60213910A JP59070040A JP7004084A JPS60213910A JP S60213910 A JPS60213910 A JP S60213910A JP 59070040 A JP59070040 A JP 59070040A JP 7004084 A JP7004084 A JP 7004084A JP S60213910 A JPS60213910 A JP S60213910A
Authority
JP
Japan
Prior art keywords
welding
optical cable
submarine optical
aluminum
mig
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
Application number
JP59070040A
Other languages
Japanese (ja)
Inventor
Osamu Kawada
修 河田
Teruyuki Takahashi
輝幸 高橋
Masami Inoue
井上　政美
Hiroyuki Yoshioka
弘行 吉岡
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
OCC Corp
Nippon Telegraph and Telephone Corp
Original Assignee
OCC Corp
Nippon Telegraph and Telephone Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by OCC Corp, Nippon Telegraph and Telephone Corp filed Critical OCC Corp
Priority to JP59070040A priority Critical patent/JPS60213910A/en
Publication of JPS60213910A publication Critical patent/JPS60213910A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4401—Optical cables
    • G02B6/4415—Cables for special applications
    • G02B6/4427—Pressure resistant cables, e.g. undersea cables
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Coupling Of Light Guides (AREA)
  • Light Guides In General And Applications Therefor (AREA)

Abstract

PURPOSE:To form an electrically reliable power supply line by anchoring a tensile strength line by a metallic sleeve and a metallic core rod and welding an aluminum joint parts coupled with the metallic sleeve with an aluminum pressure resisting part of a submarine optical cable on the basis of inert gas metal arc (MIG) welding. CONSTITUTION:One end of the aluminum joint parts 14 which is a connection part is constituted like a ring so as to be slightly thick 14A. Since one end of the joint parts 14 is made thick welding part, i.e. fillet weld part, the heat capacity of the point is increased. Therefore, a welding point P can be prevented from sudden temperature rise due to heat generated at the welding time and the MIG welding arc-discharging in gas atmosphere to weld the welding part can be adopted. Consequently, the welding part is almost prevented from corrosion after the MIG welding and sputtering, the arc of the MIG welding is extremely stable and the welded part is characterized by high ductility and intensity.

Description

【発明の詳細な説明】 〔発明の技術分野〕 この発明は、海底光ケーブルを中継器、または接続函等
に接続するときの引留装置にかかわり、特に、給電路を
形成する接合部品とケーブルの接続構造に関するもので
ある。[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a restraining device for connecting a submarine optical cable to a repeater, a connection box, etc., and particularly relates to a restraining device for connecting a cable to a connecting part forming a power supply path. It's about structure.

〔従来技術〕[Prior art]

第１図は海底光ケーブルの一例を断面図としたもので、
１は、光ファイバ心線ｌａ、中心抗張力線１ｂ等が集合
されている光フアイバユニット、２は前記光フアイバユ
ニット１を保護している保護層、３はケーブルに抗張力
を与えている抗張力線、４はアルミ等で形成されている
耐圧層、５゜６はポリエチレンで被覆されている外被で
ある。Figure 1 is a cross-sectional view of an example of a submarine optical cable.
Reference numeral 1 denotes an optical fiber unit in which optical fiber cores la, central tensile strength wires 1b, etc. are assembled; 2, a protective layer that protects the optical fiber unit 1; 3, a tensile strength wire that provides tensile strength to the cable; 4 is a pressure-resistant layer made of aluminum or the like, and 5.6 is an outer jacket coated with polyethylene.

かかる海底光ケーブルは光フアイバユニット１が重要な
情報の伝送路として使用されるものであるが、中継器等
に対して電源を供給するために、前記アルミ製の耐圧層
４が給電路として使用される場合もある。In such a submarine optical cable, the optical fiber unit 1 is used as a transmission path for important information, but the aluminum voltage-resistant layer 4 is used as a power supply path to supply power to repeaters and the like. In some cases.

そのため、海底光ケーブルを中継器に接続するときは、
海底光ケーブルの抗張力線３を機械的に引留めるととも
に、前記耐圧層４に対する電気的な接続も必要になる。Therefore, when connecting a submarine optical cable to a repeater,
In addition to mechanically holding down the tensile strength line 3 of the submarine optical cable, it is also necessary to electrically connect it to the pressure-resistant layer 4.

第２図は本出願人が試作した抗張力線３により海底光ケ
ーブルを引留めると同時に耐圧層４を電気的に完全に接
続できるようにした引留装置の概要を示すものである。FIG. 2 shows an outline of a restraining device prototyped by the present applicant, in which a submarine optical cable can be restrained by tensile strength wires 3, and at the same time, a pressure layer 4 can be completely electrically connected.

この図において、海底光ケーブルは外被６を剥離するこ
とによって耐圧層４．および抗張力線３が引き出されて
いる。In this figure, the submarine optical cable has a pressure-resistant layer 4 by peeling off the jacket 6. and a tensile strength line 3 is drawn out.

この抗張力線３は引留装置としてよく知られているよう
にテーパ状の内孔を持った金属スリーブ１０、および該
金属スリーブ１０内に圧入されている金属芯棒１１によ
って挟着かしめ止めされ、図示しない中継器ハウジング
に必要ならばジンバルハブ等を介して接続される。This tensile strength wire 3 is clamped and caulked by a metal sleeve 10 having a tapered inner hole and a metal core rod 11 press-fitted into the metal sleeve 10, as is well known as a restraining device. If necessary, it can be connected via a gimbal hub or the like to a repeater housing that does not have a relay housing.

１２は前記金属スリーブ１０の一端（Ｑ点）に溶着され
ているアルミ製の接合部品を示し、この接合部品１２の
一端（Ｐ点）を海底光ケーブルの耐圧層４に接続すると
、耐圧層４．接合部品１２、金属スリーブ１０という導
電路が完成される。Reference numeral 12 indicates an aluminum joint part welded to one end (point Q) of the metal sleeve 10. When one end (point P) of this joint part 12 is connected to the pressure-resistant layer 4 of the submarine optical cable, the pressure-resistant layer 4. A conductive path consisting of the joining part 12 and the metal sleeve 10 is completed.

なお、１３は前記外被６の補修部分を示す。Note that 13 indicates a repaired portion of the outer cover 6.

この実施例では、金属スリーブ１０と接合部品１２の接
続は必要により製造段階で溶着しておくことができるが
、接合部品１０と耐圧層４の接続はともに肉薄であり、
かつ、耐圧層４の内部には温度によって特性が劣化し易
い光フアイバ心線１ａが通過しているため、モの接続手
段に困難性があった。In this embodiment, the connection between the metal sleeve 10 and the joining component 12 can be welded at the manufacturing stage if necessary, but the connection between the joining component 10 and the pressure-resistant layer 4 is both thin;
In addition, since the optical fiber core wire 1a whose characteristics are easily deteriorated by temperature passes through the voltage-resistant layer 4, there is a difficulty in the connection means.

例えば、第３図に示すように接合部品１２と、耐圧層４
のＰ点を比較的温度の低いはんだ付けによって接続する
と一応電気的にはかなり良好な導電路が得られるが、次
のような欠点がみられる。For example, as shown in FIG.
If the points P are connected by soldering at a relatively low temperature, a fairly good electrically conductive path can be obtained, but the following drawbacks are observed.

（１）　ケーブル布設時には、アルミ製の耐圧層４に対
してもある程度の抗張力が印加されることになるが、は
んだ付けによる接続は強度が弱く信頼性が乏しい。(1) During cable installation, a certain amount of tensile strength is applied to the aluminum pressure layer 4, but connections made by soldering have low strength and poor reliability.

（２）強度を強くするために接合部品１２と耐圧層４の
間にもはんだが流れ込むような構造にすればよいが概し
てアルミ接続用のはんだ（溶加材）は流れが悪く、外部
から見て必要な強度となるまではんだが流入しているか
どうか判別することは困難であり、この場合も信頼性の
改善とはならない。(2) In order to increase the strength, it is possible to create a structure in which solder flows between the bonded parts 12 and the pressure-resistant layer 4, but in general, the solder (filler metal) for aluminum connections does not flow easily, and when viewed from the outside. It is difficult to determine whether solder has flowed in until the required strength is achieved, and reliability will not be improved in this case either.

（３）はんだ合金は再結晶温度が低く、常温でクリープ
を生じるため、ケーブル布設後に残留張力があると接合
部がクリープ破壊する危険がある。(3) Solder alloy has a low recrystallization temperature and creep occurs at room temperature, so if there is residual tension after cable installation, there is a risk of creep failure in the joint.

（４）はんだ付けに際して使用するフラックスが接合部
を腐食するおそれがあり、フラックス残渣を完全に除去
することも困難であるから経時劣化の危険がある。(4) The flux used during soldering may corrode the joints, and it is difficult to completely remove flux residue, so there is a risk of deterioration over time.

〔発明の概要〕[Summary of the invention]

この発明は、上述したような問題を解決するためになさ
れたもので、イナートガスメタルアーク法による溶接を
採用し、接合部品と耐圧層の接続を強化するとともに、
接続部の導電性も信頼性があるものにした海底光ケーブ
ルの引留装置を提供するものである。以下、この発明の
引留装置の要部を図面に基づいて説明する。This invention was made to solve the above-mentioned problems, and uses inert gas metal arc welding to strengthen the connection between the joint parts and the pressure-resistant layer.
The present invention provides a submarine optical cable anchoring device in which the conductivity of the connection portion is also reliable. Hereinafter, the main parts of the restraining device of the present invention will be explained based on the drawings.

〔発明の実施例〕[Embodiments of the invention]

第４図はこの発明の要部である接合部品と耐圧層の接続
構造の一実施例を示したもので、第３図と同一部品は同
一記号としである。FIG. 4 shows an embodiment of a connection structure between a bonding component and a withstand voltage layer, which is a main part of the present invention, and the same parts as in FIG. 3 are given the same symbols.

１４はこの発明のア、ルミ製の接合部品を示しており、
接続部となる一端はリング状にやや肉厚１４Ａとなるよ
うに構成されている。14 shows a joint part made of aluminum of this invention,
One end serving as a connecting portion is formed into a ring shape with a thickness of 14 mm.

この発明の接合部品１４は一端が肉厚の溶接部、すなわ
ち、すみ自溶接部としであるので、この点の熱容量は大
きくなる。Since the joining component 14 of the present invention has one end as a thick welded portion, that is, a corner welded portion, the heat capacity at this point is large.

そのため、溶接点Ｐは溶接時に発生する熱によって急激
に温度が上昇することを防止することができるので、ガ
ス雰囲気中でアーク放電させ、溶接するイナートガスメ
タルアーク溶接（以下ＭＩＧ溶接という）法が採用でき
るようになる。Therefore, in order to prevent the temperature of the welding point P from rapidly rising due to the heat generated during welding, inert gas metal arc welding (hereinafter referred to as MIG welding), which involves welding by arc discharge in a gas atmosphere, has been adopted. become able to.

ＭＩＧ溶接はすでに周知とされている溶接方法であって
その詳細な説明は省略するが、被覆剤およびフラックス
が不用であり、溶接後の腐食は殆どない、また、ＭＩＧ
溶接のアークはきわめて安定であるので、スパッタリン
グが防止でき、延性９強度にも優れたものになる。MIG welding is a well-known welding method, and its detailed explanation will be omitted, but it does not require coating or flux, and there is almost no corrosion after welding.
Since the welding arc is extremely stable, sputtering can be prevented and the welding has excellent ductility and strength.

したがって、アルミ製の耐圧層４に印加される布設時の
抗張力（数百Ｋｇ＠ｆと予想される）にも充分耐えるこ
とができ信頼性も格段に向上する。Therefore, it can sufficiently withstand the tensile force (estimated to be several hundred kg@f) applied to the aluminum pressure layer 4 during installation, and reliability is also significantly improved.

第５因はこの発明の他の実施例を示したもので、接合部
品１５の端部に円筒状部品１６を対向させ、この両部品
（１５，１６）と耐圧層４とを一括して突き合わせて溶
接するものである（開先溶接）。The fifth factor shows another embodiment of the present invention, in which a cylindrical component 16 is opposed to the end of the joint component 15, and both components (15, 16) and the pressure-resistant layer 4 are butted together. (groove welding).

この実施例の特徴は、すみ肉溶接と異なり、溶接トーチ
を傾ける必要がないので、ＭＩＧ溶接がより容易になり
、本出願人が別途出願している海底光ケーブルの溶接装
置に好適である。The feature of this embodiment is that, unlike fillet welding, there is no need to tilt the welding torch, making MIG welding easier and suitable for a submarine optical cable welding device that has been separately filed by the present applicant.

また、開先溶接となるため溶接時にアルミ耐圧層が溶は
過ぎることを防止することができるという利点がある。Additionally, since groove welding is used, there is an advantage that the aluminum pressure-resistant layer can be prevented from melting too much during welding.

なお、開先形状（突き合わせ部の形状）は第６図（ａ）
、（ｂ）に示すようにＩ形、またはＸ形にしてもよい。The groove shape (shape of the butt part) is shown in Figure 6(a).
, as shown in (b), it may be I-shaped or X-shaped.

〔発明の効果〕〔Effect of the invention〕

以上説明したように、この発明の海底光ケーブルの引留
装置は、金属スリーブおよび金属芯棒によって抗張力線
を引留め、かつ、金属スリーブに結合されているアルミ
製の接合部品を海底光ケーブルのアルミ製の耐圧層にＭ
ＩＧ溶接によって溶着しているので、電気的に信頼性の
ある給電路が形成できるとともに、溶接部に印加される
布設時の応力にも充分対抗できる引留装置とすることか
できるという利点がある。As explained above, the submarine optical cable retaining device of the present invention retains the tensile strength wire using the metal sleeve and the metal core rod, and connects the aluminum joint parts connected to the metal sleeve to the aluminum cable of the submarine optical cable. M on pressure layer
Since it is welded by IG welding, it has the advantage that it is possible to form an electrically reliable power supply path, and it can also be used as a restraining device that can sufficiently resist the stress applied to the welded portion during installation.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は海底光ケーブルの一例を示す断面図。 ｆ５２図は機械的、および電気的に海底光ケーブルを引
留める引留装置の一例を示す断面図、第３図は接合部品
を側面からみた断面図、第４図、第５図は溶接個所を示
す断面図、第６図（ａ）。 （ｂ）は開先溶接の他の実施例を示す断面図である。 図中、４はアルミ製の耐圧層、１０は金属スリーブ、１
１は金属芯棒、１４．１５は接合部品を第１図 第１頁の続き ［相］発明者吉岡　私行 東京都渋谷区道玄坂１丁目１６１１（号　日本大洋海底
電線株式会社内FIG. 1 is a sectional view showing an example of a submarine optical cable. Fig. f52 is a cross-sectional view showing an example of a restraining device that mechanically and electrically holds a submarine optical cable, Fig. 3 is a cross-sectional view of the joined parts viewed from the side, and Figs. 4 and 5 are cross-sectional views showing welding locations. Figure 6(a). (b) is a sectional view showing another example of groove welding. In the figure, 4 is an aluminum pressure-resistant layer, 10 is a metal sleeve, 1
1 is a metal core rod, 14.15 is a joining part.Continued from Figure 1, page 1 [Phase] Inventor Yoshioka Private Bank 1-1611 Dogenzaka, Shibuya-ku, Tokyo (No. Japan Ocean Submarine Cable Co., Ltd.)

Claims (3)

【特許請求の範囲】[Claims] （１）　抗張力線を引留めるための金属スリーブの一端
に、給電路となるアルミ製の接合部品の一端を接続し、
前記接合部品の他端をＭＩＧ溶接によって海底光ケーブ
ルのアルミ製の耐圧層に溶着することを特徴とする海底
光ケーブルの引留装置。(1) Connect one end of the aluminum joint part that will become the power supply path to one end of the metal sleeve for holding the tensile strength wire,
A restraining device for a submarine optical cable, characterized in that the other end of the joining part is welded to an aluminum pressure-resistant layer of the submarine optical cable by MIG welding. （２）接合部品の他端がリング状に肉ノ１とされ、すみ
肉溶接とされていることを特徴とする特許請求の範囲第
（１）項記載の海底光ケーブルの引留装置。(2) The submarine optical cable retaining device according to claim (1), wherein the other end of the joint part is formed into a ring shape and is fillet welded. （３）円筒状部品を接合部品の他端に対峙し、開先溶接
とすることを特徴とする特許請求の範囲第（２）項記載
の海底光ケーブルの引留装置。(3) The submarine optical cable retaining device according to claim (2), wherein the cylindrical part faces the other end of the joining part and is groove welded.
JP59070040A 1984-04-10 1984-04-10 Anchoring device of submarine optical cable Pending JPS60213910A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59070040A JPS60213910A (en) 1984-04-10 1984-04-10 Anchoring device of submarine optical cable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59070040A JPS60213910A (en) 1984-04-10 1984-04-10 Anchoring device of submarine optical cable

Publications (1)

Publication Number Publication Date
JPS60213910A true JPS60213910A (en) 1985-10-26

Family

ID=13420070

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59070040A Pending JPS60213910A (en) 1984-04-10 1984-04-10 Anchoring device of submarine optical cable

Country Status (1)

Country Link
JP (1) JPS60213910A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5939871B2 (en) * 1977-08-23 1984-09-26 株式会社日立ホームテック Door seal device for high frequency heating equipment

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5939871B2 (en) * 1977-08-23 1984-09-26 株式会社日立ホームテック Door seal device for high frequency heating equipment

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