JPS5944757B2 - Power cable molding method - Google Patents
Power cable molding methodInfo
- Publication number
- JPS5944757B2 JPS5944757B2 JP55154932A JP15493280A JPS5944757B2 JP S5944757 B2 JPS5944757 B2 JP S5944757B2 JP 55154932 A JP55154932 A JP 55154932A JP 15493280 A JP15493280 A JP 15493280A JP S5944757 B2 JPS5944757 B2 JP S5944757B2
- Authority
- JP
- Japan
- Prior art keywords
- power cable
- molding method
- molded
- conductor
- mold
- 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
Links
Landscapes
- Manufacturing Of Electrical Connectors (AREA)
- Processing Of Terminals (AREA)
Description
【発明の詳細な説明】
本発明は、ゴム、プラスチックケーブルの修理を含む電
力ケーブルのモールド作業方法の改良に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improved method for molding power cables, including repair of rubber and plastic cables.
一般に、扇形導体の架橋ポリエチレン電力ケーブル(C
Vケーブル)などの断面非円形ケーブルの修理や接続作
業は、その形状に合つた金型を使用するか、または鉄板
や介在などを中介し、その外表面を弗素樹脂(テフロン
)、ポリエステル、セロファン、合成繊維(商品名テト
ロン)などの各種押えテープで押え加熱モールドしてい
た。Cross-linked polyethylene power cables (C
When repairing or connecting cables with non-circular cross-sections, such as cables with a non-circular cross section, such as cables with a non-circular cross section, use a mold that matches the shape, or use a metal plate or other intervening material, and then cover the outer surface with fluororesin (Teflon), polyester, or cellophane. , synthetic fiber (trade name: Tetron), etc., were heated and molded with various types of presser tape.
これを第1図、第2図により説明する。第1図は金型を
使つた場合であり、1は断面扇形の導体、2は導体1の
外周に被覆されたケーブル絶縁体と同材質テープなどか
らなるモールド絶縁体、3は金型である。This will be explained with reference to FIGS. 1 and 2. Figure 1 shows the case where a mold is used, where 1 is a conductor with a fan-shaped cross section, 2 is a molded insulator made of tape made of the same material as the cable insulation coated around the outer periphery of conductor 1, and 3 is a mold. .
第2図は介在物を使つたモールド作業方法であり、断面
扇形の導体1の外周に形成されたモールド絶縁体2の外
周に、テフロン、ポリエステル、セロファン、テトロン
、加硫ゴムなどからなる内側押えテープ9が巻かれ、内
側押えテープ9の外周の導体1の二辺部に鉄板、L型鋼
板等の介在物4が当てられ、介在物4の外側を内側押え
テープと同材質の外側押えテープ5を巻回し固定される
。Figure 2 shows a molding method using inclusions, in which an inner presser made of Teflon, polyester, cellophane, Tetron, vulcanized rubber, etc. A tape 9 is wound, an inclusion 4 such as a steel plate or an L-shaped steel plate is applied to the two sides of the conductor 1 on the outer periphery of the inner holding tape 9, and an outer holding tape made of the same material as the inner holding tape is applied to the outside of the inclusion 4. 5 is wound and fixed.
そして、第1図、第2図の何れの場合も外面からヒータ
などにより加熱され、モールドされていた。尚、介在物
4を使用するのは、モールド絶縁体2を成形時に曲りを
防止するためである。これら従来の方式においては、第
1図の金型3を用いる場合、金型を準備するとしても形
状が複雑で、寸法も種々変化する要素があり、経済性や
作業性に難点が多いため、その活用は特殊な場合に限ら
れる。また、第2図の介在物4を用いる方式は、作業性
が容易なことから多く使用されているが、扇形など複雑
な形状の保持が困難で、絶縁層の不均一など品質面に問
題がある。In both cases of FIG. 1 and FIG. 2, the molding was performed by heating from the outside with a heater or the like. The purpose of using the inclusions 4 is to prevent the mold insulator 2 from bending during molding. In these conventional methods, when using the mold 3 shown in Fig. 1, even if the mold is prepared, the shape is complicated and the dimensions vary, and there are many disadvantages in terms of economy and workability. Its use is limited to special cases. In addition, the method using inclusions 4 shown in Figure 2 is often used because it is easy to work with, but it is difficult to maintain complex shapes such as fan shapes, and there are quality problems such as unevenness of the insulating layer. be.
本発明は上記の状況に鑑みなされたものであり、上記欠
点を改善し、品質性、経済性及び作業性を向上できる電
力ケーブルのモールド作業方法を提供することを目的と
するものである。The present invention was made in view of the above-mentioned situation, and an object of the present invention is to provide a power cable molding method that can improve the above-mentioned drawbacks and improve quality, economy, and workability.
本発明の電力ケーブルのモールド作業方法は、ゴム、プ
ラスチツク絶縁電力ケーブルの導体外周に、同心で該電
力ケーブルの外周と同形状を有するモールド部を形成す
る作業の場合に、上記電力ケーブル外側形状と同形状の
内側形状を有し、外周が上記電力ケーブルと同心の円形
状の中介形材を設け、上記電力ケーブルの被モールド部
分の導体上に形成されたモールド絶縁体部分を、上記中
介形材に挿通し外側より加熱モールドする方法である。The method for molding a power cable of the present invention involves forming a concentric mold part on the outer periphery of a conductor of a rubber or plastic insulated power cable and having the same shape as the outer periphery of the power cable. An intermediate member having the same inner shape and a circular outer circumference concentric with the power cable is provided, and a molded insulator portion formed on the conductor of the molded portion of the power cable is attached to the intermediate member. This method involves inserting it into the mold and heating it from the outside.
以下本発明の電力ケーブルのモールド作業方法の一実施
例を、第3図ないし第5図により説明する。An embodiment of the power cable molding method according to the present invention will be described below with reference to FIGS. 3 to 5.
第3図、第4図は中介形材6を製作する段階を示し、第
5図はモールド成形段階を示す。3 and 4 show the stage of manufacturing the intermediate section 6, and FIG. 5 shows the molding stage.
第3図において、8はCVケーブルで、未加硫シリコン
ゴムなどからなる中介形材6を外周に形成し、外側押え
テープ5により外周を1司定した後、加熱加硫し第4図
のようにCVケーブル8と内側形状が同形状で外側が断
面円形の中介形材6を形成し、一部に縦切割り7を入れ
てCVケーブル8より引き出す。In FIG. 3, reference numeral 8 denotes a CV cable. After forming an intermediate member 6 made of unvulcanized silicone rubber or the like on the outer periphery, and defining the outer periphery with an outer pressing tape 5, the cable is heated and vulcanized, as shown in FIG. 4. As shown, an intermediate member 6 having the same inner shape as the CV cable 8 and a circular outer cross section is formed, a vertical cut 7 is made in a part thereof, and the intermediate member 6 is pulled out from the CV cable 8.
尚、この場合のCケーブル8は架橋している完成品を芯
(中子)に使つているが、金属芯を用いてもよい。次に
ケーブルのモールド作業部、即ち、同径ジヨイント部の
導体1または絶縁体の修理部分の導体1を露出し、外周
にケーブルと同材質の未架橋テープなどのモールド絶縁
体2を形成し、内側押えテープ9により押える。Although the C cable 8 in this case uses a crosslinked finished product as its core (core), a metal core may also be used. Next, the molded part of the cable, that is, the conductor 1 at the same-diameter joint part or the conductor 1 at the repaired part of the insulator, is exposed, and a molded insulator 2 such as an uncrosslinked tape made of the same material as the cable is formed on the outer periphery. Press down with inner press tape 9.
そして、上記のように形成された中介形材6の縦切割り
7を開いてモールド絶縁体2部分に挿通し外側押えテー
プ5を中介形材6の外周に巻回固定し、モールド絶縁体
2を外側より加熱しモールドする。Then, the vertical cut 7 of the intermediate member 6 formed as described above is opened and inserted into the mold insulator 2 portion, and the outer pressing tape 5 is wound and fixed around the outer circumference of the intermediate member 6. Heat it from the outside and mold it.
従つて、扇形の導体1のCVケーブル8の非円形のモー
ルド部も同心円形状態で押えが可能となり、均一な圧力
が得られ、均一な絶縁厚さ及び品質が得られる。Therefore, even the non-circular molded portion of the CV cable 8 of the fan-shaped conductor 1 can be held in a concentric circular state, and uniform pressure can be obtained, resulting in uniform insulation thickness and quality.
尚、中介形材6の軸方向長さはモールド部の長さに対応
した長さとなつている。Incidentally, the axial length of the intermediate member 6 corresponds to the length of the mold portion.
そして、モールド形成後、中介形材6を取り外して作業
は完了となる。このように本実施例の電力ケーブルのモ
ールド作業方法においては、電力ケーブル外側形状と叩
一形状の内側形状を有,し、外周が上記電力ケーブルと
同心の円形状の中介形材を設け、この中介形材に縦切割
りを設けておき、この縦切割りを介して被モールド部の
導体外周に形成されたモールド絶縁体を挿通した後、中
介形材外周を外側押えテープを介し固定し、外側より加
熱モールドするので最終押え面が円形になり、段取り作
業が容易となる。After forming the mold, the intermediate member 6 is removed and the work is completed. As described above, in the power cable molding method of this embodiment, the power cable has an outer shape and a hammered inner shape, and a circular intermediate member whose outer periphery is concentric with the power cable is provided. A vertical cut is provided in the intermediate section, and the mold insulator formed on the outer periphery of the conductor of the molded part is inserted through the vertical section, and then the outer periphery of the intermediate section is fixed with an outer holding tape. Since the mold is heated from the outside, the final pressing surface becomes circular, making setup work easier.
また、中介形材はオーバフローゴムなど屑ゴムの使用が
可能であり、そして断面同形状、同寸法のケーブルに対
して中介形材を一度作つておけば、繰り返し使用ができ
、均一な圧力が得られ、形状が正確に仕上がるので均一
な特性(品質)が得られる。In addition, scrap rubber such as overflow rubber can be used for the intermediate material, and once the intermediate material is made for cables with the same cross-sectional shape and dimensions, it can be used repeatedly and uniform pressure can be obtained. Since the shape is accurately finished, uniform characteristics (quality) can be obtained.
また、例えば、長さ方向にも複雑な形状のものでもその
まま応用ができる。Further, for example, even a structure having a complicated shape in the length direction can be applied as is.
第6図は他の実施例を示し、3心ケーブル3相一括モー
ルドの場合である。FIG. 6 shows another embodiment, in which a three-core cable and three phases are integrally molded.
3本の円形の導体1の外周にはそれぞれケーブルと同材
質の未架橋テープなどによりモールド絶縁体2が形成さ
れ、3本の円形ケーブルを挿入できる中介形材6を予め
形成しておき、この中介形材6に3個のモールド絶縁体
2を保持し、円形の中介形材6の外周を外側押えテープ
5により固定し、同時に加熱モールドを行う。A molded insulator 2 is formed on the outer periphery of each of the three circular conductors 1 using an uncrosslinked tape made of the same material as the cables, and an intermediate shape member 6 into which the three circular cables can be inserted is formed in advance. Three mold insulators 2 are held on the intermediate shape member 6, the outer periphery of the circular intermediate shape member 6 is fixed with an outer pressing tape 5, and heating molding is performed at the same time.
本実施例も上記実施例と同様の作用効果を有する。This example also has the same effects as the above example.
以上記述した如く本発明の電力ケーブルのモールド作業
方法によれば、品質性、作業性、経済性を向上できる効
果を有するものである。As described above, the power cable molding method of the present invention has the effect of improving quality, workability, and economic efficiency.
第1図、第2図はそれぞれ断面非円形の電力ケーブルの
従来のモールド作業方法を示し、第1図は金型によるモ
ールド時の断面図、第2図は介在物使用によるモールド
時の断面図、第3図は本発明の電力ケーブルのモールド
作業方法実施の場合の中介形材成形時の断面図、第4図
は第3図の状態から中介形材を加熱加硫後の断面図、第
5図は導体の周囲にモールド絶縁体を形成後、第4図の
中介形材を取り付けモールド時の断面図、第6図は本発
明の電力ケーブルのモールド作業方法の他の方法実施時
の断面図である。
1:導体、2:モールド絶縁体、5:外側押えテープ、
6:中介形材、7:縦切割り。Figures 1 and 2 respectively show conventional molding methods for power cables with non-circular cross sections. Figure 1 is a cross-sectional view when molded using a metal mold, and Figure 2 is a cross-sectional view when molded using an inclusion. , FIG. 3 is a cross-sectional view of the intermediate section during molding in the case of implementing the power cable molding method of the present invention, and FIG. 4 is a cross-sectional view of the intermediate section after heating and vulcanization from the state shown in FIG. Figure 5 is a cross-sectional view of the molded insulator being formed around the conductor and the intermediate section shown in Figure 4 is attached and molded, and Figure 6 is a cross-sectional view of another power cable molding method of the present invention. It is a diagram. 1: Conductor, 2: Mold insulator, 5: Outer press tape,
6: Intermediate shape material, 7: Vertical cutting.
Claims (1)
、同心で該電力ケーブルの外周と同形状を有するモール
ド部を形成する作業方法において、上記電力ケーブル外
側形状と同形状の内側形状を有し、外周が上記電力ケー
ブルと同心の円形状の中介形材を設け、上記電力ケーブ
ルの被モールド部分の導体上に形成されたモールド絶縁
体部分を上記中介形材に挿通し、外側より加熱モールド
することを特徴とする電力ケーブルのモールド作業方法
。 2 上記中介形材に縦切割りを形成し、該縦切割りを介
し上記モールド絶縁体に挿通する特許請求の範囲第1項
記載の電力ケーブルのモールド作業方法。 3 上記電力ケーブルの導体が断面非円形形状を有して
いる特許請求の範囲第1項記載の電力ケーブルのモール
ド作業方法。[Scope of Claims] 1. A method of forming a concentric molded portion on the outer periphery of a conductor of a rubber or plastic insulated power cable and having the same shape as the outer periphery of the power cable, wherein the inner shape is the same as the outer shape of the power cable. A circular intermediate member having an outer circumference concentric with the power cable is provided, a molded insulator portion formed on the conductor of the molded portion of the power cable is inserted into the intermediate member, and the molded insulator portion is inserted from the outside. A power cable molding method characterized by heating molding. 2. The power cable molding method according to claim 1, wherein a vertical cut is formed in the intermediate section, and the cable is inserted into the mold insulator through the vertical cut. 3. The power cable molding method according to claim 1, wherein the conductor of the power cable has a non-circular cross section.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55154932A JPS5944757B2 (en) | 1980-11-04 | 1980-11-04 | Power cable molding method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55154932A JPS5944757B2 (en) | 1980-11-04 | 1980-11-04 | Power cable molding method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5778786A JPS5778786A (en) | 1982-05-17 |
JPS5944757B2 true JPS5944757B2 (en) | 1984-10-31 |
Family
ID=15595087
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55154932A Expired JPS5944757B2 (en) | 1980-11-04 | 1980-11-04 | Power cable molding method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5944757B2 (en) |
-
1980
- 1980-11-04 JP JP55154932A patent/JPS5944757B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5778786A (en) | 1982-05-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA1198350A (en) | Pipe insulation sleeve, a method of making same and arrangement for carrying out the method | |
US3932928A (en) | Method of insulating stator coils | |
CA1284569C (en) | Ribbon of a cross-linked plastic which is capable of shrinking upon the action of heat | |
JPS5944757B2 (en) | Power cable molding method | |
US4032380A (en) | Method of joining of insulated high-voltage cables | |
JP3093456B2 (en) | Cable repair method | |
JP2789583B2 (en) | Forming method of cable connection | |
JPS6016714B2 (en) | Method for forming insulated joints in cross-linked polyethylene power cables | |
JPH02142312A (en) | Formation of insulator at joint of power cable | |
JP2001069630A (en) | Jointing method of power cables | |
FR2152550A1 (en) | Joining/repairing insulated cables - by winding/melting plastic insulation strip around cable | |
JPH0865874A (en) | High-voltage fire-resistant cable connection part | |
JPH0648886B2 (en) | Surface shaping method for plastic cables | |
JPH04248310A (en) | Jointing method of rubber-plastic power cable | |
JPH0510012B2 (en) | ||
JPS63131481A (en) | Method of molding plastic insulated cable joint | |
JP2509823B2 (en) | Rubber / Plastic power cable connection method | |
JPH09103015A (en) | Insulation connecting method for cv cable | |
JPS5827735B2 (en) | How to repair, connect or terminate rubber or plastic insulated cables | |
JPH0613581Y2 (en) | Silicone rubber composite heat-shrinkable tube | |
JPH0218952Y2 (en) | ||
JPH07236216A (en) | Mold joint for crosslinked polyethylene cable with sheath separation and jointing method | |
JPH0442886B2 (en) | ||
JPS6032419B2 (en) | How to assemble the OF cable connection part | |
JPH0232753B2 (en) | GOMU * PURASUCHITSUKUZETSUENKEEBURUNOSETSUZOKUHOHO |