JPH03270617A - Connection of rubber-plastic power cable - Google Patents
Connection of rubber-plastic power cableInfo
- Publication number
- JPH03270617A JPH03270617A JP2067573A JP6757390A JPH03270617A JP H03270617 A JPH03270617 A JP H03270617A JP 2067573 A JP2067573 A JP 2067573A JP 6757390 A JP6757390 A JP 6757390A JP H03270617 A JPH03270617 A JP H03270617A
- Authority
- JP
- Japan
- Prior art keywords
- shape
- cable
- heat
- insulator
- cable core
- 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.)
- Granted
Links
- 229920003023 plastic Polymers 0.000 title claims description 4
- 239000004033 plastic Substances 0.000 title claims description 4
- 239000012212 insulator Substances 0.000 claims abstract description 53
- 239000004698 Polyethylene Substances 0.000 claims abstract description 24
- -1 polyethylene Polymers 0.000 claims abstract description 24
- 229920000573 polyethylene Polymers 0.000 claims abstract description 24
- 238000004132 cross linking Methods 0.000 claims abstract description 13
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 42
- 238000000034 method Methods 0.000 claims description 8
- 229920003020 cross-linked polyethylene Polymers 0.000 claims description 6
- 239000004703 cross-linked polyethylene Substances 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims 1
- 239000002184 metal Substances 0.000 abstract 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 abstract 1
- 239000005977 Ethylene Substances 0.000 abstract 1
- 239000004065 semiconductor Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 7
- 239000004020 conductor Substances 0.000 description 3
- 244000144992 flock Species 0.000 description 3
- 238000000465 moulding Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 241001024304 Mino Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
Landscapes
- Processing Of Terminals (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
この発明は、ゴム・ツーラスチック電カケーフルのモー
ルド接続方法に関するもので、特にプレモールド絶縁体
を用いる接続方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a mold connection method for a rubber/turastic electric cable cable, and particularly to a connection method using a pre-molded insulator.
［従来の技術］
プレモールド絶縁体を用いるゴム・プラスチック電力ケ
ーブルのモールド接続方法として、次の技術が発表され
ている（特開昭６０−２４６５７７号公報参照）。[Prior Art] The following technology has been announced as a mold connection method for rubber/plastic power cables using pre-molded insulators (see Japanese Patent Laid-Open No. 60-246577).
すなわち、第３ｂ図〜第３Ｃ図のように、内面かケーブ
ル導体接続部１２およびその付近のケーブルの形状とほ
ぼ同じて、外圓か補強絶縁体の外形と同じ形状で、かつ
２つ割りになった未架橋ポリエチレンからなるフロック
２０を用意し、それをケーブルコア１０上に装着する。That is, as shown in Figures 3b to 3C, the inner surface has almost the same shape as the cable conductor connection part 12 and the cable in its vicinity, the outer ring has the same shape as the outer shape of the reinforcing insulator, and it is divided into two parts. A flock 20 made of uncrosslinked polyethylene is prepared and mounted on the cable core 10.
なお、１４は内部半導電層、１６はケーブル絶縁体、１
８はケーブル遮蔽層である。In addition, 14 is an internal semiconducting layer, 16 is a cable insulator, 1
8 is a cable shielding layer.
フロック２０の上を熱収縮チューブ２２て押さえる。Press down the flock 20 with a heat shrink tube 22.
その上に、架橋用金型２４をかぶせる。A crosslinking mold 24 is placed over it.
以上のようにしておいて、金型２４内に、高温高圧の液
状媒体２６を導入して、フロック２０を加熱架橋する。In the above manner, a high-temperature, high-pressure liquid medium 26 is introduced into the mold 24 to thermally crosslink the flocs 20.
その後、媒体２６の温度を下げて、冷却する。Thereafter, the temperature of the medium 26 is lowered and cooled.
［発明が解決すべき課題］
２つ割りのブロック２０は、その分割面を融着させるた
めに未架橋てなけれはならす、したかつてケーブル上に
装着した後、その全体を架偏する必要があった。[Problems to be Solved by the Invention] The two-split block 20 had to be uncrosslinked in order to fuse the split surfaces.In the past, it was necessary to unbridge the entire block after it was installed on the cable. Ta.
［課題を解決するための手段」 本発明の２つの請求項からなる手段による。[Means to solve problems] By means of the two claims of the invention.
［１］その第１は、第１ａ図〜第１ｇ図に示すように、
（１）外面形状かケーブル接続部の補強絶縁体の外形と
と同じで、内面形状か円筒形であり、外部半導電層３２
か形成された、架橋ポリエチレンからなるブレハフ熱収
縮型補弓！ｌ［ｉ絶縁体３０を予め製作しておこと、
（２）また、内面形状かケーブルコア接続部１５および
その１４近の形状と同じて、外向形状がケーブル絶縁体
外形と同等もしくは僅かに大きい円筒状であり、かつ二
つ割りの、架稿剤入りポリエチレンブロック３４も予め
製作しておくこと、（３）上記のフーレハブ熱収縮型補
強絶縁坏３０をケーブル上に送り込んておいてケーブル
コアを接続し、その後、その上を前記ポリエチレンブロ
ック３４で覆うこと、
（４）その上に、熱収縮型補強絶縁体３０を移動し、熱
収縮させること、
（５）その後、架橋剤入りポリエチレンブロック３４を
架橋すること、
を特徴とする。[1] The first is as shown in Figures 1a to 1g. Conductive layer 32
A Brehaf heat-shrinkable prosthetic arch made of cross-linked polyethylene! (2) Also, the inner shape is the same as the cable core connection part 15 and its vicinity, and the outward shape is the same as or slightly larger than the cable insulator outer shape. A cylindrical and split polyethylene block 34 containing a drafting agent must also be manufactured in advance, and (3) the above Houlehub heat-shrinkable reinforcing insulator 30 is fed onto the cable and the cable core is connected. , then covering it with the polyethylene block 34; (4) moving the heat-shrinkable reinforcing insulator 30 over it and heat-shrinking it; (5) then crosslinking the polyethylene block 34 containing a crosslinking agent. It is characterized by:
［２］請求項２の発明は、上舵請求ＴＩｊｌにおけるポ
リエチレンブロック３４を使用しないで済むようにした
もので、第２ａ図〜第２Ｃ図のように、外面形状か補弓
虫絶縁体の外形とと同じで、内面形状かケーブルコア接
続部１５およびその付近の形状と同であり、かつ内面付
近５２のみ未架橋でその他の部分５４は架檎清みのポリ
エチレンからなる熱収縮型補強絶縁体５０を予め製作し
ておき、それを用いる点に特徴かある。[2] The invention of claim 2 eliminates the need to use the polyethylene block 34 in the upper rudder bill TIjl, and as shown in FIGS. 2a to 2C, the outer shape or the outer shape of the prosthetic insulator The inner surface shape is the same as that of the cable core connection part 15 and its vicinity, and only the inner surface area 52 is uncrosslinked, and the other part 54 is a heat-shrinkable reinforced insulator made of cross-linked polyethylene. 50 is made in advance and used.
［作 用コ
（１）外面形状かケーブル接続部の補強絶縁体の外形と
同じで、内面形状か円筒形てあり、外部半導電層３２か
形成された、架橋ポリエチレンからなるプレハブ熱収縮
型補強絶縁体３０．５０を用いるので、その内径をケー
ブル（防食層を含む）外径よりも大きくしておくことか
できる。したがって上記のように、それを送り込んでお
いてケーブルコアを接続し、その後所定位置に戻して、
収縮させることがてきる。[Function (1) Prefabricated heat-shrinkable reinforcement made of cross-linked polyethylene, having an external shape that is the same as that of the reinforcing insulator at the cable connection, an internal shape that is cylindrical, and an external semiconductive layer 32 formed thereon. Since the insulator 30.50 is used, its inner diameter can be made larger than the outer diameter of the cable (including the anti-corrosion layer). So as above, feed it in, connect the cable core, then put it back in place,
It can be contracted.
（２）また、接続部補強絶縁体の全部が前もって製作さ
れているので、補’ｉ！ｉ絶縁１本の成形工程か不要に
なり、いわゆるワンプロセス工法による接続が可能にな
る。(2) Also, since all of the connection reinforcing insulators are fabricated in advance, there is no need to worry! This eliminates the need for a single molding process for i-insulation, making it possible to connect using the so-called one-process method.
（３）特に請求項１の発明においては、架橋剤入リポリ
エチレンブロック３４の架橋により、熱収縮型補強絶縁
体３０とケーブルコア１０とか一体に融着される。(3) In particular, in the invention of claim 1, the heat-shrinkable reinforcing insulator 30 and the cable core 10 are fused together by crosslinking the crosslinking agent-containing polyethylene block 34.
（４）また特に請求項２の発明においては、熱収縮型補
強絶縁体５０の内面付近５２の未架橋部分の架橋により
、架橋清みの５４の部分とケーブルコア１０とが一体に
融着される。(4) In particular, in the invention of claim 2, by cross-linking the uncross-linked portion near the inner surface 52 of the heat-shrinkable reinforcing insulator 50, the cross-linked portion 54 and the cable core 10 are fused together. Ru.
［実施例 １〕（第１ａ図〜第１ｅ図〉作業工程順に説
明する。[Example 1] (Figures 1a to 1e) The work steps will be explained in order.
（１）まず、プレハブ熱収縮型補強絶縁体３０を、予め
工場において製作しておく（第１ａ図）。(1) First, a prefabricated heat-shrinkable reinforcing insulator 30 is manufactured in advance at a factory (FIG. 1a).
これは、外面形状かケーブル接続部の補強絶縁体の外形
と同じて、内面形状か円筒形である。内径がケーブル外
径より大きくしてあって、後記のようにケーブルコアの
接続前に、ケーブル上に送り込めるようになっている。This has the same external shape as the reinforcing insulator of the cable connection, and an internal shape or cylindrical shape. The inner diameter is larger than the cable outer diameter so that it can be fed onto the cable before connecting the cable core as described later.
架橋ポリエチレン製である。Made of cross-linked polyethylene.
また、外部半導電層３２が形成されている。Additionally, an external semiconducting layer 32 is formed.
なお、３３は縁切り部であるが、これは本発明に直接関
係はない。Note that 33 is an edge cutting portion, but this is not directly related to the present invention.
（２）また、次に述へる架Ｗ剤入すポリエチレンブロッ
ク３４（第１ｂ図）も予め製作しておく。(2) In addition, a polyethylene block 34 (Fig. 1b) into which the W material to be described next will be placed is also prepared in advance.
これは、内面形状がケーブルコア接続部１５およびその
付近の形状と同しで、外面形状がケーブル絶縁体外径と
同等もしくは僅かに大きい円筒状であり、かつ二つ割り
になっている（第１Ｃ図参照、３５は分割面）。The inner surface shape is the same as that of the cable core connection part 15 and its vicinity, and the outer surface shape is cylindrical, which is equal to or slightly larger than the outer diameter of the cable insulator, and is divided into two parts (see Figure 1C). , 35 is the dividing plane).
なお説明の都合上、導体接続部１２からペンシリング部
分にかけての部分をケーブルコア接続部１５ということ
にする。For convenience of explanation, the portion from the conductor connection portion 12 to the pencil ring portion will be referred to as the cable core connection portion 15.
（３）熱収縮型補強絶縁体３０をケーブル上に送り込ん
でおいて、従来とおりチーフル導体圧着、ベンジリンク
、内部半導電層１４の処理を行ってケーブルコア１０を
接続する。(3) The heat-shrinkable reinforcing insulator 30 is fed onto the cable, and the cable core 10 is connected by crimping the chiffle conductor, bending links, and processing the internal semiconductive layer 14 in the conventional manner.
（４）ケーブルコアを接続したら、ポリエチレンブロッ
ク３４でケーブルコア接続部１５を覆う（第１ｄ図）。(4) After connecting the cable cores, cover the cable core connection portion 15 with a polyethylene block 34 (Fig. 1d).
そして、その両端を１呆持リンク３６によって押さえて
、外れないようにする。Then, both ends are held down by the one-stop link 36 to prevent it from coming off.
それから、熱収縮型補強絶縁１，１；３０を所定母数に
移動する（第１ｅ図）。Then, the heat-shrinkable reinforcing insulation 1, 1; 30 is moved to a predetermined base (FIG. 1e).
（５）熱収縮型蒲弓！Ｔｉ＃ｅ縁俸３０を加熱収縮させ
る。(5) Heat-shrinkable bow! The Ti#e edge 30 is heated and shrunk.
そのときは、第１ｆ図のように、中央から収縮させてポ
リエチレンブロック３４に接触させ、さらにポリエチレ
ンブロック３４を浴融させ、かつそれを熱収縮型補強絶
縁体３０の収縮力により締め付けて、界血にある空気な
どをその両端に押し出しながら両端に向かって収縮させ
る。In that case, as shown in FIG. 1f, the polyethylene block 34 is contracted from the center and brought into contact with the polyethylene block 34, the polyethylene block 34 is further melted in a bath, and it is tightened by the contraction force of the heat-shrinkable reinforcing insulator 30. Air in the blood is pushed out to both ends, causing it to contract towards both ends.
熱収縮型補強絶縁体３０の中央付近を全長の約１７３程
度収縮させたとき、保持リング３６を取り外す。When the center of the heat-shrinkable reinforcing insulator 30 is shrunk by about 173 degrees of its total length, the retaining ring 36 is removed.
収縮が全長にわたって完了したら、冷却し、熱収縮型補
強絶縁体３０の外部半導電層３２とケーブルコア外導外
部半導電層１８とを架橋用半導電チー７または架橋用半
導電収縮チューブ３７て、接続する（第１ｇ図）。After the shrinkage is completed over the entire length, it is cooled, and the outer semiconductive layer 32 of the heat-shrinkable reinforcing insulator 30 and the outer conductive outer semiconductive layer 18 of the cable core are bonded together using the semiconducting tee 7 for bridging or the semiconducting shrink tube 37 for bridging. , connect (Figure 1g).
（６）熱収縮型Ｖｉ独絶縁捧３０の外側に架構用金型３
８を組み立てる（第１ｇ国）。この金型３８の端部金具
４０とケーブルコア１０との間には、変形防止枕４２（
たとえはゴム袋内に高粘度油や窒素ガスを充填したもの
〉を設けておいて、金型付近のケーブルコアに歪か発生
しないようにする。(6) A frame mold 3 is placed on the outside of the heat-shrinkable Vi German insulation rod 30.
Assemble 8 (Country 1G). A deformation prevention pillow 42 (
For example, a rubber bag filled with high viscosity oil or nitrogen gas is provided to prevent distortion of the cable core near the mold.
（７）金型内部を圧力加熱して、未架橋であったポリエ
チレンブロック３４や半導電チーツー３７などを架橋す
る。(7) Pressurize and heat the inside of the mold to crosslink the uncrosslinked polyethylene block 34, semiconductive Qi-Two 37, and the like.
［実施例 ２コ （第２ａ−〜第２Ｃ図）第１実ＩＭ例
の場合と比へて、ポリエチレンブロック３４を用いない
点に特徴かある。[Embodiment 2 (Figures 2a to 2C) Compared to the first actual IM example, this embodiment is characterized in that the polyethylene block 34 is not used.
上記同様に作業工程順に説明する。As above, the work steps will be explained in order.
（１）この場合も、熱収縮型補強絶縁体５０を予め製作
しておく。(1) Also in this case, the heat-shrinkable reinforcing insulator 50 is manufactured in advance.
たたしこの場合は、土泥実施例のものと若干異なって、
外面形状か補強絶縁体の外形と同じであるが、内面形状
がケーブルコア接続部１５およびその付近の形状と同で
ある。また、内面付近の層５またけ未架橋で、その他の
部分５４は架橋清みのポリエチレンからなる。In this case, it is slightly different from the clay example.
The outer shape is the same as the outer shape of the reinforcing insulator, but the inner shape is the same as the shape of the cable core connecting portion 15 and its vicinity. Further, the layer 5 near the inner surface is uncrosslinked, and the other portion 54 is made of polyethylene that is not crosslinked.
なお、ケーブル外径以上に拡径しておくことは上記の場
合と同じである。Note that expanding the diameter to be larger than the outer diameter of the cable is the same as in the above case.
（２）熱収縮型補強絶縁体５０をケーブル上に送り込ん
でおいて、ケーブルコアを接続する。(2) The heat-shrinkable reinforcing insulator 50 is fed onto the cable and the cable core is connected.
その後、熱収縮型補強絶縁体５０を所定位置に移動し、
加熱収縮させる（第２ｂ図）。なお、そのときは、第Ｖ
実施例の場合と同じように中央から収縮させ、ケーブル
コア接続部１５との界面にある空気などをその両端に押
し出しなから両端に向かって収縮させる。After that, move the heat-shrinkable reinforcing insulator 50 to a predetermined position,
Heat shrink (Figure 2b). In addition, in that case, Chapter V
As in the case of the embodiment, it is contracted from the center, and the air at the interface with the cable core connection part 15 is not pushed out to both ends, but is contracted toward both ends.
なお、この排出を確実にするため、熱収縮型補強絶縁体
５０は、ケーブルコア接続部１５に邑たっても若干収縮
力が残るような内径にしておく。In order to ensure this discharge, the inner diameter of the heat-shrinkable reinforcing insulator 50 is set so that some shrinkage force remains even when it is placed on the cable core connecting portion 15.
（３ンそれから熱収縮型補強絶縁体５０の外側に架橋用
金型３８組み立て、内部を加圧加熱して熱収縮型補強絶
縁体５０の未架橋層５２を架橋する。(3) Then, a bridging mold 38 is assembled on the outside of the heat-shrinkable reinforcing insulator 50, and the inside is heated under pressure to cross-link the uncrosslinked layer 52 of the heat-shrinkable reinforcing insulator 50.
未架橋層５２の架橋により、熱収縮型補強絶縁体５０と
ケーブルコア１０は確実に接着し一体化する。By crosslinking the uncrosslinked layer 52, the heat-shrinkable reinforcing insulator 50 and the cable core 10 are reliably bonded and integrated.
［発明の効果］
（１）熱収縮型の補強絶縁体を用いるのて、それをケー
ブル上に送り込んでおいて、ケーブルコアの接続を行い
その後収縮させることができる。[Effects of the Invention] (1) By using a heat-shrinkable reinforcing insulator, it can be fed onto the cable, the cable core can be connected, and then it can be shrunk.
（２）補強絶縁体を成形するための金型が不要になり、
金型の組立・解体は架橋用金型についてたけの一度で済
むので、作業時間か短縮される。(2) No need for a mold to mold the reinforcing insulator,
Assembling and disassembling the mold only needs to be done once for the bridging mold, so the working time is shortened.
（３）架構後のストレスコーン酸形が不要になり、補強
絶縁体の外部半導電層や縁ｔＩＪり部も予め工場におい
て製作しかつ性能チエツクが事前にてきるので、信頼性
が向上する。(3) There is no need for stress cone acid molding after the frame is constructed, and the external semiconducting layer and edge tIJ portion of the reinforcing insulator are manufactured in advance at the factory and performance checks are performed in advance, improving reliability.
（４）補強絶縁体を構成する７レハフフロツクの大部分
が架橋清みであるのて、ケーブル上に組み立てた後の架
橋が短時間で終了する。(4) Since most of the 7-leaf flock constituting the reinforcing insulator is cross-linked, the cross-linking after assembly on the cable can be completed in a short time.
（５）特に請求項１の発明においては、俄に加熱架橋さ
れたポリエチレンブロック３４を介して、熱収縮型補強
絶縁体３０とケーブルコア１０とが一体に融着される。(5) In particular, in the invention of claim 1, the heat-shrinkable reinforcing insulator 30 and the cable core 10 are fused together via the polyethylene block 34 that has been heat-crosslinked.
（６）また特に請求項２の発明（二おいては、熱収縮型
補強絶縁体５０の内面付近５２の未架橋部分の加熱溶融
架橋により、ケーブルコア１０との隙間は完全になくな
り、かつ架ｆ４ ？Ｊみの５４の部分とケーブルコア(6) In particular, the invention of claim 2 (in the second aspect), by heating and melting cross-linking the uncross-linked portion near the inner surface 52 of the heat-shrinkable reinforcing insulator 50, the gap with the cable core 10 is completely eliminated, and the f4 ?J mino 54 part and cable core
図面はすべて本発明の実施例に関するもので、第１ａ図
は第１実施例において使用する熱収縮型補強絶縁体３０
の説明図、
第１ｂ図は第１実施例において使用するポリエチレンブ
ロック３４の説明図、
第１Ｃ図は第１ｂ図のＣ−Ｃ断面図。
第１ｄ図と第１ｅ図と第１ｆ図と第１ｇ図は第３実施例
を工程順に示した説明図、
第２ａ図は第２実ｍ例において使用する熱収縮型補強絶
縁体５０の説明図、
第２ｂ図と第２ｃ図は第２実施例を工程順に示した説明
図。
第３ｃ図は従来技術の説明図で、
第３ａ図はそれに使用する未架橋ポリエチレンブロック
の説明図、
第３ｂ図は第３ａ図のＢ−Ｂｌ！ｉ面図。
２０：未架橋ポリエチレンブロック
３０、５０：熱収縮型補強絶縁体
３２；外部半導電層 ３３；縁切り部３４：未架橋
ポリエチレンブロック
３６：保持リング
３７：半導電テープまたは収縮チューブ３８：架橋用金
型 ４２；変形防止枕５２：内面付近の未架橋層
５４：架橋した部分All the drawings relate to embodiments of the present invention, and FIG. 1a shows a heat-shrinkable reinforcing insulator 30 used in the first embodiment.
FIG. 1B is an explanatory diagram of the polyethylene block 34 used in the first embodiment. FIG. 1C is a sectional view taken along the line C-C in FIG. 1B. Figures 1d, 1e, 1f, and 1g are explanatory diagrams showing the third embodiment in the order of steps, and Figure 2a is an explanatory diagram of the heat-shrinkable reinforcing insulator 50 used in the second practical example. , FIG. 2b and FIG. 2c are explanatory diagrams showing the second embodiment in the order of steps. Fig. 3c is an explanatory diagram of the prior art, Fig. 3a is an explanatory diagram of an uncrosslinked polyethylene block used therein, and Fig. 3b is an explanatory diagram of the B-Bl of Fig. 3a! i-side view. 20: Uncrosslinked polyethylene blocks 30, 50: Heat-shrinkable reinforcing insulator 32; External semiconductive layer 33; Edge cut portion 34: Uncrosslinked polyethylene block 36: Retaining ring 37: Semiconductive tape or shrink tube 38: Crosslinking mold 42; Deformation prevention pillow 52: Uncrosslinked layer near inner surface 54: Crosslinked portion
Claims (2)
が円筒形であり、架橋ポリエチレンからなる熱収縮型補
強絶縁体を予め製作しておく工程と、内面形状がケーブ
ルコア接続部およびその付近の形状と同じで、外面形状
がケーブル絶縁体外形と同等もしくは僅かに大きい円筒
状であり、かつ二つ割りの、架橋剤入りポリエチレンブ
ロックを予め製作しておく工程と、 前記熱収縮型補強絶縁体をケーブル上に送り込んでおい
て、ケーブルコアを接続し、その後、前記ポリエチレン
ブロックで前記ケーブルコア接続部を覆い、かつ前記熱
収縮型補強絶縁体を所定位置に移動する工程と、 当該熱収縮型補強絶縁体を加熱収縮させて前記ポリエチ
レンブロックを保持しかつ熱収縮型補強絶縁体の外部半
導電層とケーブルコアの外部半導電層とを接続する工程
と、 前記熱収縮型補強絶縁体の外側に架橋用金型を組み立て
る工程と、 前記架橋用金型内を加圧加熱して、未架橋部分を架橋す
る工程、 とを含む、ゴム・プラスチック電力ケーブルの接続方法
。(1) A step in which a heat-shrinkable reinforcing insulator made of cross-linked polyethylene is manufactured in advance, the outer shape of which is the same as the outer shape of the reinforcing insulator, and the inner shape of which is cylindrical. A process of preparing in advance a polyethylene block containing a crosslinking agent, which has a cylindrical shape whose outer surface is equal to or slightly larger than the outer shape of the cable insulator, and which is the same as the shape of the surrounding area, and which is split into two; and the heat-shrinkable reinforcing insulation. feeding the body onto the cable to connect the cable core, then covering the cable core connection with the polyethylene block and moving the heat-shrink reinforcing insulation into position; heating and shrinking the reinforcing insulator to hold the polyethylene block and connecting the outer semiconducting layer of the reinforcing insulator to the outer semiconducting layer of the cable core; A method for connecting a rubber/plastic power cable, comprising: assembling a crosslinking mold on the outside; and pressurizing and heating the inside of the crosslinking mold to crosslink uncrosslinked portions.
がケーブルコア接続部およびその付近の形状と同であり
、かつ内面付近のみ未架橋でその他の部分は架橋済みの
ポリエチレンからなる熱収縮型補強絶縁体を予め製作し
ておく工程と、 前記熱収縮型補強絶縁体をケーブル上に送り込んでおい
て、ケーブルコアを接続し、その後前記熱収縮型補強絶
縁体を所定位置に移動し、加熱収縮させる工程と、 前記熱収縮型補強絶縁体の外側に架橋用金型を組み立て
る工程と、 前記架橋用金型内を加圧加熱して、未架橋部分を架橋す
る工程、 とを含む、ゴム・プラスチック電力ケーブルの接続方法
。(2) The outer shape is the same as the outer shape of the reinforcing insulator, the inner shape is the same as the shape of the cable core connection part and its vicinity, and the inner surface is uncrosslinked and the other parts are crosslinked polyethylene. A step of manufacturing a shrinkable reinforcing insulator in advance, feeding the heat shrinking reinforcing insulator onto a cable, connecting a cable core, and then moving the heat shrinkable reinforcing insulator to a predetermined position. , a step of heating and shrinking; a step of assembling a crosslinking mold on the outside of the heat-shrinkable reinforcing insulator; and a step of pressurizing and heating the inside of the crosslinking mold to crosslink uncrosslinked portions. , how to connect rubber and plastic power cables.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2067573A JP2822086B2 (en) | 1990-03-17 | 1990-03-17 | Connection method of rubber / plastic power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2067573A JP2822086B2 (en) | 1990-03-17 | 1990-03-17 | Connection method of rubber / plastic power cable |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2302917A Division JP2884372B2 (en) | 1990-11-08 | 1990-11-08 | Connection method of rubber / plastic power cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03270617A true JPH03270617A (en) | 1991-12-02 |
| JP2822086B2 JP2822086B2 (en) | 1998-11-05 |
Family
ID=13348827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2067573A Expired - Fee Related JP2822086B2 (en) | 1990-03-17 | 1990-03-17 | Connection method of rubber / plastic power cable |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2822086B2 (en) |
-
1990
- 1990-03-17 JP JP2067573A patent/JP2822086B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2822086B2 (en) | 1998-11-05 |
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