JPS61142917A - Connection structure for anchoring sense wire - Google Patents

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】 〔産業上の利用分野〕 この発明は、海底ケープノζ海底送水管等が船舶の錨に
引掛けられる等して変形したことを電気的に感知するい
わゆる懸錨感知線の接続構造に関する。[Detailed Description of the Invention] [Field of Industrial Application] This invention is directed to a so-called hanging anchor sensing line that electrically senses when a submarine water pipe or the like is deformed due to being hooked to a ship's anchor. Regarding the connection structure.

〔従来の技術〕[Conventional technology]

電力線と懸錨感知線とを複合した海底ケーブルは、例え
ば、第１３図に示すような断面構造になっている。同図
の符号１は導体を絶縁体で被覆した電力線で、隣接の電
力線間に懸錨感知線２を配置し１さらに、これ等の外周
を介在物３、座床４を間にした２重のがい製鉄線５、外
装６で順に被覆しである。A submarine cable that combines a power line and a suspended anchor sensing line has a cross-sectional structure as shown in FIG. 13, for example. Reference numeral 1 in the figure is a power line whose conductor is covered with an insulator, and a hanging anchor sensing line 2 is placed between adjacent power lines. It is covered with a steel wire 5 and an exterior sheath 6 in this order.

一方、懸錨感知線２は、第１４図に示すように、絶縁体
７の中心にテンションメンバ（ステンレス鋼線）８を入
れた絶縁紐９の複数本と、これと同数の導体、１０と一
奪交互に密着配置し、さらにこれ等の外周を水密コンパ
ウンド１１、押えテープ１２、絶縁外被１３、防融処理
した鉛被１４、必要に応じて設ける保護テープ層１５で
順に被覆しだものである。この感知線２は海底ケーブル
が外力を受けて変形すると共に変形し、隣り合う導体１
０の２者が第１５図に示すように接触する。従ってその
接触による一種のスイッチング動作の有無を監視所にお
いて常時監視しておけば、海底ケーブルに変形が生じた
ことを知ることができる０　　　゛〔発明が解決しよう
とする問題点〕 ところで、との懸錨感知線も海底ケーブル敷設時には途
中で接続しなければならない。しかし。On the other hand, as shown in FIG. 14, the suspended anchor sensing wire 2 consists of a plurality of insulated strings 9 each having a tension member (stainless steel wire) 8 inserted in the center of an insulator 7, the same number of conductors 10, and the like. They are arranged in close contact with each other alternately, and their outer peripheries are covered in order with a watertight compound 11, a holding tape 12, an insulating jacket 13, a lead coating 14 with melt-proofing treatment, and a protective tape layer 15 provided as necessary. It is. This sensing line 2 deforms as the submarine cable receives external force and deforms, and the adjacent conductor 1
0 come into contact as shown in FIG. Therefore, if a monitoring station constantly monitors the presence or absence of a kind of switching operation caused by such contact, it is possible to know that deformation has occurred in the submarine cable. The suspended anchor sensing line must also be connected midway when laying the submarine cable. but.

特に第１４図の構造の線は製品化されて日の浅いもので
あることから、その接続構造は未だ開発されていない。In particular, since the line of the structure shown in FIG. 14 has only recently been commercialized, its connection structure has not yet been developed.

なお、この線の接続に際しては、非常に細い感知線自体
の接続強度を充分に確保することと、誤°検出を起さな
い処理を施すことが必要になる。Note that when connecting this line, it is necessary to ensure sufficient connection strength of the very thin sensing line itself and to perform processing to prevent false detection.

この発明は、これ等の要求を満たした信頼性の高い接続
構造を提供するものである。The present invention provides a highly reliable connection structure that satisfies these requirements.

〔問題点を解決するための手段〕[Means for solving problems]

この発明の接続構造は、第１４図に示した懸錨感知線の
中間接続において、 絶縁紐の絶縁体の一部を含めた中心テンションメンバの
接合部及び外被端近くで二指！−縛した絶縁紐の緊縛部
外周をそれぞれ絶縁材で補強し、上記緊縛部上の補強層
間には露出した絶縁紐の上記の個所以外の緊縛部と表面
保護層を有する防水・絶縁層とを形成し、 また、被接続線の外被間に露出した感知用の導体は、上
記防水・絶縁層の外周に弛みなく螺旋巻きして鑞付は接
続すると共に、露出部のほぼ全体を絶縁材で補強し、 さらに、それ等の外周を外被端部に設けた絶縁層間を結
ぶ外周の緊縛された絶縁性防水パテ層、鉛被近くから外
被を結ぶ熱収縮スリＴブ、鉛被に接続する鉛管で順に被
覆して成る。The connection structure of this invention is such that, in the intermediate connection of the suspended anchor sensing wire shown in FIG. - Reinforce the outer periphery of the binding part of the tied insulating string with an insulating material, and between the reinforcing layers on the binding part, the exposed binding part of the insulating string other than the above-mentioned parts and a waterproof/insulating layer having a surface protection layer. In addition, the sensing conductor exposed between the outer sheaths of the connected wires is spirally wound around the outer periphery of the waterproof/insulating layer without slack, and connected by brazing, and almost the entire exposed part is covered with insulating material. In addition, the outer periphery of these parts is reinforced with an insulating waterproof putty layer tied around the outer periphery that connects the insulating layers provided at the end of the outer sheath, a heat-shrinkable slit T-piece that connects the outer sheath from near the lead sheath, and a It is made by sequentially covering the connecting lead pipes.

即ち、絶縁紐のみを中心部で長手力に余長を生しないよ
うに接続することによシ接続部に加わる引張力をこの絶
縁紐で確実に受は止めるようにし、また、感知用の導体
は絶縁紐を被覆した防水・絶縁層の外周で接続すること
によシ接続部での感知機能を確実に殺して誤検出を防止
し、さらに、防水処理を多重に施すことによシ海水等の
浸入を防止して誤検出防止効果を更に高めると共に耐久
性等も高めている。That is, by connecting only the insulating string at the center so that there is no extra length in the longitudinal force, the tensile force applied to the connection part can be reliably received by the insulating string, and the sensing conductor By connecting the outer circumference of a waterproof/insulating layer covered with insulating string, the sensing function at the connection part is reliably killed and false detections are prevented.Furthermore, multiple waterproofing treatments are applied to prevent seawater, etc. This further enhances the effect of preventing false detection by preventing the infiltration of substances, and also improves durability.

第１図は、その接続部の全体図を示すもので、１５はテ
ンションメンバ８の接続部を補強する熱収縮チューブ、
１６はそのチューブと絶縁体７との間の境界部を補強す
る絶縁テープ、１８．１８’は耐熱性絶縁テープによる
絶縁紐９の一括緊縛部、１９は熱収縮チューブ、２０は
導体１０に被せた熱収縮チューブ、２１は導体接続部の
絶縁性補強層、２２．２２′は絶縁性の防水パテ層、１
６′は内側のパテ層上に巻いた絶縁テープ、２３は保護
テープ、１６“は外被端に巻いた絶縁テープ、１８“は
外側のパテ層の緊縛部、２４は熱収縮スリーブ、２５は
鉛被１４間に被せる鉛管、２６はその半田付は部であシ
、また、２７は必要に応じて設ける保護テープ層である
。FIG. 1 shows an overall view of the connection part, and 15 is a heat shrink tube that reinforces the connection part of the tension member 8;
16 is an insulating tape that reinforces the boundary between the tube and the insulator 7, 18 and 18' is a heat-resistant insulating tape that binds the insulating string 9 together, 19 is a heat shrink tube, and 20 is a heat-shrinkable tube that is placed over the conductor 10. 21 is an insulating reinforcement layer for the conductor connection part, 22.22' is an insulating waterproof putty layer, 1
6′ is the insulating tape wrapped on the inner putty layer, 23 is the protective tape, 16″ is the insulating tape wrapped around the edge of the outer cover, 18″ is the binding part of the outer putty layer, 24 is the heat shrink sleeve, 25 is the A lead pipe 26 is soldered between the lead sheaths 14, and a protective tape layer 27 is provided as necessary.

以下に、その接続部の組立て手順を゛記す。The procedure for assembling the connection part is described below.

第２図に示すように、鉛被１４と外被１３を剥キ、かつ
水密コンパウンド１１をアルコール等で払拭して絶縁紐
９と導体１０を露出させ、外被端近傍の絶縁紐９上に耐
熱性絶縁テープの緊縛部１８を形成する。また、′感知
＃２には熱収縮スリーブ２４を嵌めておく。As shown in FIG. 2, the lead sheath 14 and the outer sheath 13 are peeled off, and the watertight compound 11 is wiped off with alcohol or the like to expose the insulating string 9 and the conductor 10, and the insulating string 9 near the end of the outer sheath is exposed. A binding portion 18 of heat-resistant insulating tape is formed. In addition, a heat shrink sleeve 24 is fitted to 'sensor #2.

次に、第３図に示すように、緊縛部１８上に熱収縮チュ
ーブ１９を嵌め、また、絶縁紐９からはテンションメン
バ８をむき出して°絶縁紐の接続に移る。Next, as shown in FIG. 3, a heat shrink tube 19 is fitted onto the binding portion 18, and the tension member 8 is exposed from the insulating string 9, and the process moves on to connecting the insulating string.

互いに接続する絶縁紐９．９からむ′き出したテンショ
ンメンバ８は平行に重ねて半田付けする（第４図）。ま
た、テンションメンバの露出部ハ絶縁組に予め嵌めてお
いた熱収縮チューブ１５で被覆し、このチューブと絶縁
体７との間の境界部は自己融着絶縁テープ１６を巻いて
補強する（第５図）。The tension members 8 exposed from the insulating strings 9 and 9 which are connected to each other are stacked in parallel and soldered together (FIG. 4). In addition, the exposed part of the tension member is covered with a heat-shrinkable tube 15 that has been fitted in advance to the insulation assembly, and the boundary between this tube and the insulator 7 is reinforced by wrapping a self-fusion insulating tape 16. Figure 5).

３本の絶縁皿を接続し終えたら、それらをまとめて適当
な間隔でテープ留めしくそれが１８′の緊縛部）、さら
にチューブ１９を緊縛部１８上に収縮固定する（第６図
）。After connecting the three insulating plates, tape them together at appropriate intervals (the binding part 18'), and then shrink and fix the tube 19 on the binding part 18 (FIG. 6).

また、各チューブ１９間の外周にはノくテテープを貼っ
て絶縁性の防水パテ層２２を形成し、さらにその上に自
己融着絶縁テープ１６′と保護テープ２３の巻回層を順
に形成する（第７図）。しかる後、導体１０を接続する
。Furthermore, a piece of tape is pasted on the outer periphery between each tube 19 to form an insulating waterproof putty layer 22, and furthermore, a wound layer of self-fusing insulating tape 16' and protective tape 23 is formed in this order. (Figure 7). After that, the conductor 10 is connected.

導体１０は、接続する前に、接続部近傍を除く露出部の
根本迄を熱収縮チューブ２０で覆い（第８図）、この後
突き合わせ面を鑞付けする（第９図）。この際の導体１
０は作業に支障をきたさない程度の弛みをつけるが、そ
の弛みが大き過ぎるは好ましくないので、撚りピンチに
合うように螺旋巻きして接続する。また、導体の接続が
完了すれば、チューブ２０の一部を含めた接続部の外周
に絶縁テープを巻いた補強層２１〕を形成する（第１０
図）０ この後、仕上作業に移る。即ち、導体１０が曲げ応力を
受は易い外被１３の端部近傍には導体１０を外力から保
護するだめの自己融着絶縁テープ１６“を巻き、また、
テープ１６“間には絶縁性のパテテープによる防水パテ
層２２′を形成して形状を整えた後、その外周に耐熱性
の絶縁テープによる緊縛部１８“を形成する（第１１図
）。Before connecting the conductor 10, the exposed part except the vicinity of the connection part is covered with a heat shrink tube 20 (FIG. 8), and then the mating surfaces are brazed (FIG. 9). Conductor 1 in this case
For 0, there should be enough slack to not interfere with work, but it is undesirable for the slack to be too large, so connect it by spirally winding it to fit the twisting pinch. Furthermore, once the connection of the conductors is completed, a reinforcing layer 21 made of insulating tape is formed around the outer periphery of the connection part including a part of the tube 20 (10th reinforcement layer 21).
Figure) 0 After this, move on to finishing work. That is, near the end of the jacket 13 where the conductor 10 is susceptible to bending stress, a self-fusing insulating tape 16'' is wrapped to protect the conductor 10 from external forces, and
After forming a waterproof putty layer 22' of insulating putty tape between the tapes 16' and adjusting the shape, a binding part 18' of heat-resistant insulating tape is formed around the outer periphery (FIG. 11).

さらに、この上に第１図のように熱収縮スリーブ２４を
引き寄せて収縮固定し、また、その上に鉛管２５を被せ
て鉛被１４に半田付けする。なお、鉛管２５は、両端を
感知線の径まで絞るのが難しく！ので、第１２図に示す
ように長手方向の割シ溝をつけて絞シを容易にし、絞り
込んだ後に割シ溝部の端面を半田２６′等で気密に接合
するのが望ましい。Furthermore, as shown in FIG. 1, the heat-shrinkable sleeve 24 is pulled over and shrunk and fixed, and the lead pipe 25 is placed over it and soldered to the lead sheath 14. In addition, it is difficult to narrow both ends of the lead pipe 25 to the diameter of the sensing wire! Therefore, as shown in FIG. 12, it is desirable to provide a split groove in the longitudinal direction to facilitate drawing, and after drawing, the end faces of the split groove are hermetically joined with solder 26' or the like.

また、鉛管の外面には、保護テープ２７を巻いておくの
が望ましい。Further, it is desirable to wrap a protective tape 27 around the outer surface of the lead pipe.

〔効　果〕〔effect〕

以上説明した、この発明の接続構造は、接続部に作用す
る引張力が絶縁紐中心のテンションメンバによって受は
止められるので感知用導体が切れる心配が無く、また、
この導体は絶縁皿をまとめて被覆した防水・絶縁層の外
周で接続し、なおかつ露出部を絶縁材で被覆して被接続
部と断面形状の変わる接続部での感知機能を殺しである
ので誤検出の心配もない。In the connection structure of the present invention as described above, the tensile force acting on the connection part is stopped by the tension member centered on the insulating string, so there is no fear that the sensing conductor will break, and
This conductor is connected at the outer periphery of a waterproof/insulating layer that covers the insulating pans together, and the exposed part is covered with an insulating material to prevent the sensing function at the connected part whose cross-sectional shape changes from the connected part. There is no need to worry about detection.

さらに、防水処理や絶縁処理を多重に施しであるので、
導体間に電気導通状態を生じさせたシ、内部劣化（特に
テンションメンバや導体の腐蝕）を生じさせたりする恐
れのある海水等の浸入も確実に防止される。Furthermore, since it has been subjected to multiple waterproofing and insulation treatments,
Infiltration of seawater, etc., which may cause electrical continuity between conductors or cause internal deterioration (particularly corrosion of tension members and conductors), is also reliably prevented.

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

第１図は、この発明の接続構造を示す断面図、第２図乃
至第１２図は接続部の組立て手順を示す図、第１３図は
懸錨感知線を複合した海底ケーブルの断面図、第１４図
は本発明を適用する懸錨感知線の断面図、第１５図はそ
の動作原理を示す線図である。 ２・・・懸錨感知線、７・・・絶縁体、８・・・テンシ
ョンメンバ、９・・・絶縁皿、１０・・・導体、１１・
・・水密コンパウンド、１２・・・押えテープ、１３・
・・絶縁外被、１４・・・鉛被、１５．１９．２０・・
・熱収縮チューブ、１６．１６′・・・絶縁テープ、１
８．１８’、１８“・・・緊縛部、２１・・・補強層、
２２．２２’・・・防水パテ層、２３・・・保護テープ
、２４・・・熱収縮スリニブ、２５・・・鉛管 特許出願人　　　　　住友電気工業株式会社同　　代理
人　　　　　　鎌　　１）　文　　二第１１図 第１３図 第１５図FIG. 1 is a sectional view showing the connection structure of the present invention, FIGS. 2 to 12 are views showing the assembly procedure of the connection part, FIG. FIG. 14 is a cross-sectional view of a suspended anchor sensing line to which the present invention is applied, and FIG. 15 is a line diagram showing its operating principle. 2... Hanging anchor sensing wire, 7... Insulator, 8... Tension member, 9... Insulating plate, 10... Conductor, 11...
・・Watertight compound, 12・・Pressure tape, 13・
...Insulating outer covering, 14...Lead covering, 15.19.20...
・Heat shrink tube, 16.16'...Insulating tape, 1
8. 18', 18"...Bound part, 21... Reinforcement layer,
22.22'...Waterproof putty layer, 23...Protective tape, 24...Heat-shrinkable slim nib, 25...Lead pipe patent applicant Sumitomo Electric Industries, Ltd. Agent Sickle 1) Text 2 Figure 11 Figure 13 Figure 15

Claims (1)

【特許請求の範囲】 中心にテンションメンバを入れた絶縁紐の複数本と、こ
れと同数の導体とを交互に密着配置し、これ等の外周を
水密コンパウンド、押えテープ、絶縁外被、鉛被で順に
被覆した懸錨感知線の中間接続において、 上記絶縁紐の絶縁体の一部を含めた中心テンションメン
バの接合部及び外被端近くで一括緊縛した絶縁紐の緊縛
部外周をそれぞれ絶縁材で補強し、上記緊縛部上の補強
層間には露出した絶縁紐の上記の個所以外の緊縛部と表
面保護層を有する防水・絶縁層とを形成し、 また、被接続線の外被間に露出した上記導体は、上記防
水・絶縁層の外周にほゞ弛みなく螺旋巻きして鑞付け接
続すると共に露出部のほゞ全体を絶縁材で補強し、 さらに、それ等の外周を外被端部に設けた絶縁層間を結
ぶ外周の緊縛された絶縁性防水パテ層、鉛被近くから外
被を結ぶ熱収縮スリーブ、鉛被に接合する鉛管で順に被
覆して成る懸錨感知線の接続構造。[Claims] A plurality of insulating strings with a tension member inserted in the center and the same number of conductors are arranged in close contact with each other alternately, and the outer periphery of these strings is coated with watertight compound, holding tape, insulating jacket, or lead coating. At the intermediate connection of the suspended anchor sensing wire, which is covered in order with A waterproof/insulating layer is formed between the reinforcing layers on the bonded portion, and the bonded portion of the exposed insulating string other than the above-mentioned portions and a waterproof/insulating layer having a surface protection layer. The exposed conductor is spirally wound around the outer periphery of the waterproof/insulating layer with almost no slack and connected by brazing, and almost the entire exposed part is reinforced with an insulating material, and the outer periphery of the conductor is connected to the outer periphery of the outer covering. A hanging anchor sensing wire connection structure consisting of a tightly bound insulating waterproof putty layer on the outer periphery that connects the insulating layers provided in the section, a heat shrink sleeve that connects the outer sheath from near the lead sheath, and a lead pipe that joins the lead sheath. .