JPH03107324A - Cable splicing - Google Patents
Cable splicingInfo
- Publication number
- JPH03107324A JPH03107324A JP1243893A JP24389389A JPH03107324A JP H03107324 A JPH03107324 A JP H03107324A JP 1243893 A JP1243893 A JP 1243893A JP 24389389 A JP24389389 A JP 24389389A JP H03107324 A JPH03107324 A JP H03107324A
- Authority
- JP
- Japan
- Prior art keywords
- cable
- lead
- sealing means
- main cable
- gas
- 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
- 238000007789 sealing Methods 0.000 claims abstract description 32
- 239000003566 sealing material Substances 0.000 abstract description 12
- 239000004698 Polyethylene Substances 0.000 description 31
- 239000007789 gas Substances 0.000 description 24
- 238000010438 heat treatment Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔概要〕
所定の圧力の気体が封入されることで布設されるＰＥ主
ケーブルを分岐し、該分岐個所に鉛皮ケーブルを接続さ
せるように形成されたケーブルの接続構造に関し、
ＰＥ主ケーブルに封入された所定の圧力による気体が分
岐個所に於いて漏洩することのないように形成すること
を目的とし、
所定の圧力の気体が封入されることで布設されるＰＥ主
ケーブルと、鉛管の外周に塩ビより成る外皮が施された
鉛皮ケーブルと、該ＰＥ主ケーブルを分岐することで該
鉛皮ケーブルの接続が行われる分岐接続部とを備え、該
分岐接続部に於ける該気体の漏洩を封止する第１の封止
手段を設けると共に、該鉛皮ケーブルの所定個所に該鉛
管を露出させる露出部を形成し、該外皮と該鉛管との界
面から漏洩される該気体を封止する第２の封止手段が該
露出部に形成されるように構成する。[Detailed Description of the Invention] [Summary] A cable connection structure formed so that a PE main cable laid by filling gas at a predetermined pressure is branched, and a lead skin cable is connected to the branch point. Regarding PE main cables, the purpose is to prevent the gas at a specified pressure sealed in the PE main cable from leaking at the branch points. A cable, a lead-skinned cable in which a sheath made of PVC is applied to the outer periphery of a lead pipe, and a branch connection part where the lead-skinned cable is connected by branching off the PE main cable, and the branch connection part A first sealing means for sealing the leakage of the gas is provided, and an exposed portion for exposing the lead pipe is formed at a predetermined location of the lead sheath cable, so that the gas leaks from the interface between the sheath and the lead pipe. A second sealing means for sealing the gas is formed in the exposed portion.
本発明は所定の圧力の気体が封入されることで布設され
るＰＲ主ケーブルを分岐し、該分岐個所に鉛皮ケーブル
を接続させるように形成されたケーブルの接続構造に関
する。The present invention relates to a cable connection structure that is formed so that a PR main cable that is laid by being filled with gas at a predetermined pressure is branched, and a lead-skinned cable is connected to the branch point.
電話′局の局舎間などの屋外に布設られる通信ケーブル
は、−船釣に、第４図のケーブル布設説明図に示すよう
に形成されている。Communication cables installed outdoors, such as between telephone offices, are formed as shown in the cable installation diagram of FIG.
例えば、Ａ局１１Ａと８局１１Ｂとの間に布設される通
信ケーブルとしては、通称ポリエチレンケーブルのＰＥ
主ケーブルｌが用いられ、ＰＥ主ケーブル１の所定個所
には分岐接続部３を形成し、分岐接続部３に於いて鉛皮
ケーブル２の接続が行われ、そこで、鉛皮ケーブル２を
介して増幅器１０の配設が行われる。For example, the communication cable installed between the A station 11A and the 8th station 11B is PE, commonly known as polyethylene cable.
A main cable l is used, a branch connection part 3 is formed at a predetermined location of the PE main cable 1, a lead skin cable 2 is connected at the branch connection part 3, and there, a lead skin cable 2 is connected through the lead skin cable 2. The arrangement of the amplifier 10 is performed.
また、このようなＰＥ主ケーブル１の布設では、ＰＥ主
ケーブル１の内部には０．６５または０．７５気圧の窒
素ガスまたは圧搾空気などの気体が封入され、ＰＥ主ケ
ーブルｌに損傷が生じた時は、その気体の圧力の変化に
よって検知することが行われるように形成されている。In addition, when the PE main cable 1 is laid like this, gas such as nitrogen gas or compressed air at 0.65 or 0.75 atm is filled inside the PE main cable 1, which may cause damage to the PE main cable 1. When the gas is released, the sensor is configured to detect the change in the pressure of the gas.
したがって、このような分岐接続部３に於ける接続は、
ＰＥ主ケーブル１の内部に封入された気体が漏洩するこ
とのないように形成されることが重要となる。Therefore, the connection at such a branch connection part 3 is as follows.
It is important that the PE main cable 1 be formed so that the gas sealed inside it will not leak.
従来は第３図の従来の側面断面図に示すように構成され
ていた。Conventionally, the structure was as shown in the conventional side cross-sectional view of FIG.
第３図に示すように、ＰＥ主ケーブル１を分岐すること
でＰＥ主ケーブル１の芯線ＩＡが鉛皮ケーブル２の芯線
２Ｄに接続された分岐接続部３は、接続後絶縁テープな
どが巻かれ、その外周をアルミ材より成るカバー８によ
って覆い、外力に対する保護を行い、更に、カバー８の
外周を熱収縮チューブ９によって覆うように構成されて
いた。As shown in FIG. 3, the branch connection part 3 where the core wire IA of the PE main cable 1 is connected to the core wire 2D of the lead skin cable 2 by branching the PE main cable 1 is wrapped with insulating tape etc. after the connection. The outer periphery of the cover 8 is covered with a cover 8 made of aluminum material to protect against external forces, and the outer periphery of the cover 8 is further covered with a heat shrink tube 9.
また、カバー８の固着は、カバー８の一方の開口部８Ａ
にはＰＥ主ケーブル１を挿入させ、他方の開口部８Ｂに
はＰＥ主ケーブル１と鉛皮ケーブル２を隣接させること
で挿入させ、両端の開口部８Ａ、８Ｂを工具によって締
め付け、ＰＥ主ケーブルｌに対しては、ＰＥ主ケーブル
１の外皮である塩ビの外周に、鉛皮ケーブル２に対して
は、鉛皮ケーブル２の外皮２Ａを除去し、露出された鉛
管２Ｂの外周のそれぞれに開口部８Ａ、８Ｂが係止され
ることで行われている。Further, the cover 8 is fixed to one opening 8A of the cover 8.
The PE main cable 1 is inserted into the other opening 8B, and the PE main cable 1 and the lead skin cable 2 are inserted adjacently to each other, and the openings 8A and 8B at both ends are tightened with a tool. For the PE main cable 1, the outer skin 2A of the lead-skinned cable 2 is removed, and an opening is formed on the outer periphery of the exposed lead pipe 2B. This is done by locking 8A and 8B.
一方、熱収縮チューブ９の固着は、ＰＥ主ケーブル１の
外皮である塩ビの外周に軟質の生ゴムテープなどによる
シーリング材１２を付着させ、鉛皮ケーブル２の外皮２
Ａを除去し、露出された鉛管２Ｂの外周に前述のシーリ
ング材１２を付着させ、シーリング材１２が付着された
それぞれの個所に熱収縮チューブ９０両端を位置決めし
、ガスバーナなどによって加熱することで熱収縮チュー
ブ９を収縮させることによって行われる。On the other hand, the heat-shrinkable tube 9 is fixed by attaching a sealing material 12 such as soft raw rubber tape to the outer periphery of PVC, which is the outer sheath of the PE main cable 1, and
A is removed, the above-mentioned sealing material 12 is attached to the exposed outer periphery of the lead pipe 2B, both ends of the heat shrink tube 90 are positioned at each location where the sealing material 12 is attached, and heat is applied by heating with a gas burner or the like. This is done by shrinking the shrink tube 9.
したがって、熱収縮チューブ９の固着により、ＰＥ主ケ
ーブル１に封入された圧力Ｐの気体の漏洩を防止するこ
とで鉛皮ケーブル２を接続し、鉛皮ケーブル２を介して
前述の増幅器１０の配設が行われていた。Therefore, by fixing the heat shrink tube 9, the lead skin cable 2 is connected by preventing the leakage of the gas at the pressure P sealed in the PE main cable 1, and the above-mentioned amplifier 10 is connected via the lead skin cable 2. Settings were being made.
このような加熱することで熱収縮チューブ９をＰＥ主ケ
ーブルｌおよび鉛皮ケーブル２に固着させる構成では、
ＰＥ主ケーブル１に対しては、シーリング材１２が加熱
によりＰＥ主ケーブル１の外皮に溶着されることになり
、熱収縮チューブ９とＰＥ主ケーブル１との密着性は良
好となるが、しかし、鉛皮ケーブル２に対しては、シー
リング材１２が加熱により鉛管２Ｂに溶着されることが
ないため、熱収縮チューブ９と鉛皮ケーブル２との密着
性は良好とはならない、特に、熱収縮に際しての加熱温
度が高い場合は、シーリング材１２が流出されることに
なり、気密性を得ることができなくなる。In such a configuration in which the heat shrink tube 9 is fixed to the PE main cable l and the lead skin cable 2 by heating,
For the PE main cable 1, the sealing material 12 is welded to the outer skin of the PE main cable 1 by heating, and the adhesion between the heat shrink tube 9 and the PE main cable 1 is good. For the lead-skinned cable 2, since the sealing material 12 is not welded to the lead pipe 2B by heating, the adhesion between the heat-shrinkable tube 9 and the lead-skinned cable 2 is not good, especially during heat shrinkage. If the heating temperature is high, the sealant 12 will flow out, making it impossible to obtain airtightness.
したがって、鉛皮ケーブル２に対しては、熱収縮チュー
ブ９を熱収縮させる加熱温度は充分に注意する必要があ
り、また、良好な気密性が得られないため、ＰＥ主ケー
ブル１に封入された気体の漏洩が生じる問題を有してい
た。Therefore, for the lead-skinned cable 2, it is necessary to be careful about the heating temperature at which the heat-shrinkable tube 9 is heat-shrinked, and since good airtightness cannot be obtained, This had the problem of gas leakage.
また、鉛皮ケーブル２の外皮２Ａにシーリング材１２を
付着させ、熱収縮チューブ９を外皮２Ａに固着させるこ
とも考えられるが、通常、鉛皮ケーブル２の外皮２Ａは
前述の増幅器１０の配設に際して端末処理が行われてい
ないため、外皮２Ａと鉛管２Ｂとの界面を通して、ＰＥ
主ケーブル１に封入された気体が漏洩することになる。It is also conceivable that the sealing material 12 is attached to the outer skin 2A of the lead-skinned cable 2 and the heat-shrinkable tube 9 is fixed to the outer skin 2A, but normally the outer skin 2A of the lead-skinned cable 2 is used to arrange the amplifier 10 described above. Because no end treatment was performed during the process, the PE
The gas sealed in the main cable 1 will leak.
そこで、本発明では、ＰＥ主ケーブルに封入された所定
の圧力による気体が分岐個所に於いて漏洩することのな
いように形成することを目的とする。Therefore, an object of the present invention is to form the PE main cable so that the gas under a predetermined pressure sealed in the PE main cable does not leak at the branch point.
〔課題を解決するための手段］ 第１図は本発明の原理説明図である。[Means to solve the problem] FIG. 1 is a diagram explaining the principle of the present invention.
第１図に示すように、所定の圧力Ｐの気体が封入される
ことで布設されるＰＥ主ケーブル１と、鉛管２Ｂの外周
に塩ビより成る外皮２Ａが施された鉛皮ケーブル２と、
該ＰＥ主ケーブル１を分岐することで該鉛皮ケーブル２
の接続が行われる分岐接続部３とを備え、該分岐接続部
３に於ける該気体の漏洩を封止する第１の封止手段４を
設けると共に、該鉛皮ケーブル２の所定個所に該鉛管２
Ｂを露出させる露出部７を形成し、該外皮２Ａと該鉛管
２Ｂとの界面２Ｃから漏洩される該気体を封止する第２
の封止手段６が該露出部７に形成されるように構成する
。As shown in FIG. 1, a PE main cable 1 is installed by enclosing gas at a predetermined pressure P, and a lead-skinned cable 2 has a PVC sheath 2A on the outer periphery of a lead pipe 2B.
By branching the PE main cable 1, the lead skin cable 2
A first sealing means 4 is provided for sealing the leakage of the gas at the branch connection part 3, and a first sealing means 4 is provided at a predetermined location of the lead-sheathed cable 2. lead pipe 2
A second section forms an exposed portion 7 that exposes B, and seals the gas leaking from the interface 2C between the outer skin 2A and the lead pipe 2B.
A sealing means 6 is formed on the exposed portion 7.
このように構成することによって前述の課題は解決され
る。With this configuration, the above-mentioned problem is solved.
〔作用］
即ち、ＰＥ主ケーブル１に封入された気体の漏洩を防止
する第１の封止手段４を分岐接続”部３に設けると共に
、鉛皮ケーブル２の所定個所に鉛管２Ｂを露出させる露
出部７を形成し、該露出部７には外皮２Ａと該鉛管２Ｂ
との界面２Ｃから漏洩される該気体を封止する第２の封
止手段６を設けるようにしたものである。[Function] That is, the first sealing means 4 for preventing leakage of the gas sealed in the PE main cable 1 is provided at the branch connection section 3, and the lead pipe 2B is exposed at a predetermined location of the lead sheathed cable 2. A portion 7 is formed, and the outer skin 2A and the lead pipe 2B are formed in the exposed portion 7.
A second sealing means 6 is provided for sealing the gas leaking from the interface 2C with the gas.
したがって、第１の封止手段４のに於ける鉛皮ケーブル
２に対する前述のシーリング材の付着が該鉛皮ケーブル
２の外皮２Ａに行うことが可能となり、熱収縮チューブ
９との密着性がＰＦ！主ケーブルｌの場合と同等となり
、気体の漏洩を確実に防ぐことができる。Therefore, the above-mentioned sealing material can be attached to the outer skin 2A of the lead-skinned cable 2 in the first sealing means 4, and the adhesion with the heat-shrinkable tube 9 is improved by PF. ! This is equivalent to the case of main cable 1, and gas leakage can be reliably prevented.
以下本発明を第２図を参考に詳細に説明する。 The present invention will be explained in detail below with reference to FIG.
第２図は本発明の一実施例の側面断面図である。FIG. 2 is a side sectional view of one embodiment of the present invention.
全図を通じて、同一符号は同一対象物を示す。The same reference numerals indicate the same objects throughout the figures.
第２図に示すように、ＰＥ主ケーブルｌを分岐すること
で鉛皮ケーブル２が接続された分岐接続部３にはカバー
８とシーリング材１２を介して固着された熱収縮チュー
ブ９とより成る第１の封止手段４を設けると共に、鉛皮
ケーブル２の鉛管２Ｂが露出された露出部７に於ける外
皮２Ａを折り返すことで締め付けるワイヤ６Ｂと、その
締め付けた個所をシーリング材１２の充填によって覆う
鉛カバー６八とより成る第２の封止手段６が設けられる
ように構成したものである。As shown in FIG. 2, the branch connection part 3 to which the PE main cable l is branched and the lead-skinned cable 2 is connected is made up of a cover 8 and a heat shrink tube 9 fixed via a sealant 12. In addition to providing the first sealing means 4, a wire 6B is tightened by folding back the outer sheath 2A at the exposed portion 7 where the lead pipe 2B of the lead sheath cable 2 is exposed, and the tightened portion is filled with a sealing material 12. A second sealing means 6 consisting of a lead cover 68 is provided.
また、第２の封止手段６に於ける、鉛カバー６Ａは、外
皮２Ａを折り返すことでワイヤ６Ｂが締め付けられた個
所にシーリング材１２を巻き付け、鉛カバー６八を被せ
て、鉛カバー６八を工具によって締め付け、一端は外皮
２Ａに、他端は鉛管２Ｂにそれぞれ固着され、外皮２Ａ
と鉛管２Ｂとの界面２Ｃより気体が漏れるごとのないよ
うにしたもきである。Further, the lead cover 6A in the second sealing means 6 is made by folding back the outer skin 2A, wrapping the sealing material 12 around the part where the wire 6B is tightened, and covering the lead cover 68 with the lead cover 68. is tightened with a tool, one end is fixed to the outer skin 2A, the other end is fixed to the lead pipe 2B, and the outer skin 2A
This is to prevent gas from leaking from the interface 2C between the lead pipe 2B and the lead pipe 2B.
そこで、第１の封止手段４に於ける鉛皮ケーブル２と熱
収縮チューブ９との固着は、外皮２Ａにシーリング材１
２を付着させることで行える。Therefore, the adhesion between the lead-skinned cable 2 and the heat-shrinkable tube 9 in the first sealing means 4 is achieved by applying the sealing material to the outer skin 2A.
This can be done by attaching 2.
したがって、熱収縮チューブ９を熱収縮させる加熱によ
ってＰＥ主ケーブル１の場合と同様に、外皮２Ａが熱収
縮チューブ９に溶着されることになり、熱収縮チューブ
９を鉛管２Ｂに固着させる従来の構成に比較して、密着
性が良くなり、良好な気密性を得ることができる。Therefore, by heating the heat-shrinkable tube 9 to heat-shrink it, the outer sheath 2A is welded to the heat-shrinkable tube 9 in the same way as in the case of the PE main cable 1, and the conventional structure in which the heat-shrinkable tube 9 is fixed to the lead pipe 2B is achieved. The adhesion is improved compared to the above, and good airtightness can be obtained.
また、このような第２の封止手段６は鉛皮ケーブル２の
末端に増幅器１０を接続した時に予め設けて置けば、Ｐ
Ｅ主ケーブルｌの布設工事の際に第２の封止手段６を形
成する必要がないので、特に、布設工事に於ける工数を
増加させることはない。Further, if such a second sealing means 6 is provided in advance when the amplifier 10 is connected to the end of the lead-skinned cable 2, the P
Since it is not necessary to form the second sealing means 6 during the installation work of the E main cable 1, there is no particular increase in the number of man-hours in the installation work.
（発明の効果〕
以上説明したように、本発明によれば、分岐接続部に設
けられた第１の封止手段と、鉛皮ケーブル２の所定個所
に設けられた第２の封止手段とを備えることで、ＰＨ主
ケーブルｌに封入された気体の漏れを確実に防ぐように
したものである。(Effects of the Invention) As explained above, according to the present invention, the first sealing means provided at the branch connection part and the second sealing means provided at a predetermined location of the lead-skinned cable 2. By providing this, leakage of the gas sealed in the PH main cable l is reliably prevented.
したがって、従来のような熱収縮に際しての加熱温度を
調節する必要がなく、しかも、確実な気密性が得られる
ため、作業工数の削減および信顧性の向上が図れ、実用
的効果は大である。Therefore, there is no need to adjust the heating temperature during heat shrinkage as in conventional methods, and reliable airtightness can be obtained, reducing work hours and improving reliability, which has great practical effects. .
第１図は本発明の原理説明図。 第２図は本発明による一実施例の側面断面図。 第３図は従来の側面断面図。 第４図はケーブルの布設説明図を示す。 図において、 １はＰＥ主ケーブル、 ２は鉛皮ケーブル。 ３は分岐接続部、 ４は第１の封止手段。 ６は第２の封止手段、 ７は露出部。 ２Ａは外皮、 ２Ｂは鉛管。 ２Ｃは界面を示す。 本発明の原理説明口 痕 図 ４第１の封止手段 本発明による一大斃例のＩＩ＝１面断面図嬉２図 FIG. 1 is a diagram explaining the principle of the present invention. FIG. 2 is a side sectional view of an embodiment according to the present invention. FIG. 3 is a conventional side sectional view. FIG. 4 shows an explanatory diagram of cable installation. In the figure, 1 is PE main cable, 2 is lead skin cable. 3 is a branch connection part, and 4 is a first sealing means. 6 is a second sealing means, and 7 is an exposed portion. 2A is the outer shell, 2B is the lead pipe. 2C indicates an interface. Explanation of the principle of the present invention trace figure 4 First sealing means II = 1-plane sectional view of the great loss according to the present invention Figure 2
Claims (1)
ＰＥ主ケーブル（１）と、鉛管（２Ｂ）の外周に塩ビよ
り成る外皮（２Ａ）が施された鉛皮ケーブル（２）と、
該ＰＥ主ケーブル（１）を分岐することで該鉛皮ケーブ
ル（２）の接続が行われる分岐接続部（３）とを備え、
該分岐接続部（３）に於ける該気体の漏洩を封止する第
１の封止手段（４）を設けると共に、該鉛皮ケーブル（
２）の所定個所に該鉛管（２Ｂ）を露出させる露出部（
７）を形成し、該外皮（２Ａ）と該鉛管（２Ｂ）との界
面（２Ｃ）から漏洩される該気体を封止する第２の封止
手段（６）が該露出部（７）に形成されることを特徴と
するケーブルの接続構造。A PE main cable (1) that is installed by enclosing gas at a predetermined pressure (P), and a lead-skinned cable (2) that has a PVC sheath (2A) on the outer periphery of a lead pipe (2B). ,
A branch connection part (3) where the lead skin cable (2) is connected by branching the PE main cable (1),
A first sealing means (4) for sealing the leakage of the gas at the branch connection (3) is provided, and the lead-clad cable (
2) an exposed portion (2) that exposes the lead pipe (2B) at a predetermined location;
7), and a second sealing means (6) for sealing the gas leaking from the interface (2C) between the outer skin (2A) and the lead pipe (2B) is provided in the exposed portion (7). A cable connection structure characterized by being formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1243893A JPH03107324A (en) | 1989-09-20 | 1989-09-20 | Cable splicing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1243893A JPH03107324A (en) | 1989-09-20 | 1989-09-20 | Cable splicing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03107324A true JPH03107324A (en) | 1991-05-07 |
Family
ID=17110563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1243893A Pending JPH03107324A (en) | 1989-09-20 | 1989-09-20 | Cable splicing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03107324A (en) |
-
1989
- 1989-09-20 JP JP1243893A patent/JPH03107324A/en active Pending
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