JP2822730B2 - Pre-mold insulator insertion jig - Google Patents
Pre-mold insulator insertion jigInfo
- Publication number
- JP2822730B2 JP2822730B2 JP3297598A JP29759891A JP2822730B2 JP 2822730 B2 JP2822730 B2 JP 2822730B2 JP 3297598 A JP3297598 A JP 3297598A JP 29759891 A JP29759891 A JP 29759891A JP 2822730 B2 JP2822730 B2 JP 2822730B2
- Authority
- JP
- Japan
- Prior art keywords
- connection portion
- mold
- insulator
- cable
- mold insulator
- 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 - Lifetime
Links
Landscapes
- Processing Of Terminals (AREA)
Description
【０００１】[0001]
【産業上の利用分野】この発明は、ＣＶ電力用ケーブル
のプレハブ型接続部に係り、この接続部を組立てるとき
のプレ・モールド絶縁体の挿入・装着に使用する治具に
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a prefabricated connection portion of a CV power cable, and more particularly to a jig used for inserting and mounting a pre-molded insulator when assembling the connection portion.
【０００２】[0002]
【従来の技術および発明が解決しようとする課題】ＣＶ
電力用ケーブルのプレハブ型接続部は、主にエポキシユ
ニットとプレ・モールド絶縁体およびスプリングで構成
された圧縮装置を組立てて構成するもので、終端接続部
や直線接続部として実用化されている。2. Description of the Related Art CV
The prefabricated connection portion of the power cable is mainly constructed by assembling a compression device composed of an epoxy unit, a pre-molded insulator and a spring, and has been put to practical use as a terminal connection portion or a straight connection portion.
【０００３】このような接続部において、絶縁性能の面
で重要な構成部品であるプレ・モールド絶縁体を、従来
のように作業者の手作業で挿入・装着することは、絶縁
性能の信頼性からも問題となっている。また、ケーブル
が大サイズ導体や２７５ｋＶのような超高圧ケーブルの
接続部に対してはプレ・モールド絶縁体が大型となり、
手作業による取り扱いが難しくなっている。さらに、プ
レ・モールド絶縁体は現場での作業となることから、結
露や異物混入防止を考慮した作業の確立がもっとも強く
要望されていた。In such a connection portion, it is difficult to insert and mount a pre-mold insulator, which is an important component in terms of insulation performance, by a worker's manual operation as in the related art. Is also a problem. In addition, the pre-molded insulator becomes large for the connection part of the cable where the cable is a large conductor or an ultra-high voltage cable such as 275 kV,
It is difficult to handle manually. Furthermore, since the pre-mold insulator is an on-site work, there has been a strong demand for establishing a work in consideration of the prevention of dew condensation and foreign matter intrusion.
【０００４】そこで、ＣＶ電力用ケーブルのプレハブ型
接続部の組立てにおいて、プレ・モールド絶縁体を挿入
するための挿入治具を考案することにした。この装置は
主に油圧シリンダ，固定金具，押し金具およびカバーか
ら構成されている。この装置を用いることにより、結露
の防止およびプレ・モールド絶縁体装着作業が簡素化さ
れ、結果として接続部の絶縁性能の向上をもたらすこと
ができる。Therefore, in assembling a prefabricated connection portion of a CV power cable, an insertion jig for inserting a pre-mold insulator has been devised. This device is mainly composed of a hydraulic cylinder, a fixture, a pusher, and a cover. The use of this device simplifies the operation of preventing condensation and attaching the pre-molded insulator, and as a result, it is possible to improve the insulation performance of the connection portion.
【０００５】[0005]
【課題を解決するための手段】この発明は、電力ケーブ
ル用プレハブ型接続部において、ケーブルシース上に油
圧シリンダを取り付けた固定治具を設置し、接続部と固
定治具との間にカバーを設け、このカバー内を脱気した
後、ＳＦ6などの電気的負性ガスや乾燥空気などを充填
した状態で油圧シリンダによりプレ・モールド絶縁体を
装着するようにしたことを特徴とするプレ・モールド絶
縁体挿入治具である。According to the present invention, a fixing jig having a hydraulic cylinder mounted on a cable sheath is provided at a prefabricated connection portion for a power cable, and a cover is provided between the connection portion and the fixing jig. After the inside of the cover is evacuated, the pre-mold insulator is mounted by a hydraulic cylinder in a state of being filled with an electrically negative gas such as SF 6 or dry air. This is a mold insulator insertion jig.
【０００６】[0006]
【作用】このプレ・モールド絶縁体挿入治具によりプレ
・モールド絶縁体の挿入・装着を行うことにより結露の
防止およびプレ・モールド絶縁体装着作業の簡便化を図
ることができる。By inserting and mounting the pre-mold insulator with the pre-mold insulator insertion jig, it is possible to prevent dew condensation and to simplify the pre-mold insulator mounting operation.
【０００７】[0007]
【実施例】以下、図面に基づいてこの発明の実施例を説
明する。図１は実施例のプレ・モールド絶縁体挿入治具
によりプレ・モールド絶縁体を装着している状態を示す
接続部の一部分を示す断面図である。ＣＶケーブル１２
は端部を段剥ぎ処理してケーブル導体１５を露出させ、
導体接続スリーブ１６を被せて圧縮接続される。このと
き、接続部を構成するエポキシユニット１およびプレ・
モールド絶縁体２は予め露出されたケーブル絶縁体１４
に挿入されている。ＣＶケーブルの端部の段剥ぎされた
外部半導電層１３側のケーブルシース１２上にクッショ
ン層８を設け、固定金具７を取り付ける。この固定金具
７は割型に形成しておき、上下からクッション層８にか
ぶせて固定する。さらに、油圧シリンダ１０のホルダー
９をこの固定金具７に取り付ける。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a cross-sectional view showing a part of a connecting portion in a state where a pre-mold insulator is mounted by a pre-mold insulator insertion jig of the embodiment. CV cable 12
Is stripped at the end to expose the cable conductor 15,
Compression connection is performed with the conductor connection sleeve 16 put on. At this time, the epoxy unit 1 and the pre-
The molded insulator 2 is made of a previously exposed cable insulator 14.
Has been inserted. The cushion layer 8 is provided on the cable sheath 12 on the side of the external semiconductive layer 13 from which the end of the CV cable is peeled off, and the fixture 7 is attached. The fixing bracket 7 is formed in a split mold, and is fixed over the cushion layer 8 from above and below. Further, the holder 9 of the hydraulic cylinder 10 is attached to the fixture 7.
【０００８】上記油圧シリンダ１０はプレ・モールド絶
縁体２をエポキシユニット１の内周面を均一に押すよう
にすることから、ＣＶケーブルの周りに２本〜４本で構
成される。このため、ホルダー９は割型で、かつ、複数
本の油圧シリンダ１０が円周上に配置できるように形成
されている。通常、油圧シリンダ１０は円周方向１２０
°の間隔で３本取り付ける。The hydraulic cylinder 10 is composed of two to four CV cables around the CV cable so as to press the pre-mold insulator 2 uniformly on the inner peripheral surface of the epoxy unit 1. For this reason, the holder 9 is split and is formed so that a plurality of hydraulic cylinders 10 can be arranged on the circumference. Normally, the hydraulic cylinder 10 is
Attach three at an interval of °.
【０００９】プレハブ型のエポキシユニット１の周囲に
設けられた保護管１７の端部とホルダー９との間には円
筒状のカバー４が設けられている。このカバー４は接続
部内部を脱気処理したり、ＳＦ6 ガスなどの電気的負性
ガスを封入することができるように密封構造になってい
る。カバー４内にはプレ・モールド絶縁体２、押し金具
３、アダプタ金具５、ガイドフランジ１１およびレジュ
ース金具６が配置される。このレジュース金具６はプレ
・モールド絶縁体２を所定位置で右側に押すために油圧
シリンダ１０と外径調整のために設けられている。ま
た、ガイドフランジ１１はアダプタ金具５の偏芯を防ぐ
ために設けている。A cylindrical cover 4 is provided between an end of a protective tube 17 provided around the prefabricated epoxy unit 1 and the holder 9. The cover 4 has a hermetically sealed structure so that the inside of the connection portion can be degassed or an electrically negative gas such as SF 6 gas can be sealed therein. In the cover 4, the pre-molded insulator 2, the press fitting 3, the adapter fitting 5, the guide flange 11, and the rejuice fitting 6 are arranged. The refill metal fitting 6 is provided for adjusting the outer diameter with the hydraulic cylinder 10 to push the pre-mold insulator 2 rightward at a predetermined position. The guide flange 11 is provided to prevent the eccentricity of the adapter fitting 5.
【００１０】上記カバー４の排出口４ａは、図示しない
排気装置に接続され、接続部内のエポキシユニット１と
プレ・モールド絶縁体２の周りの空気を排出して脱気す
ることができる。また、ＳＦ6 ガス充填チューブ２１の
先端がエポキシユニット１の内周のテーパー面にまで延
びて設置され、他端は図示しないＳＦ6 ガスボンベに接
続されている。The outlet 4a of the cover 4 is connected to an exhaust device (not shown) so that air around the epoxy unit 1 and the pre-mold insulator 2 in the connection portion can be exhausted and deaerated. Further, the tip of the SF 6 gas filling tube 21 is installed so as to extend to a tapered surface on the inner periphery of the epoxy unit 1, and the other end is connected to an SF 6 gas cylinder (not shown).
【００１１】このような部品配置において本装置での作
業は、まずカバー４内の脱気処理を行う。続いてガス充
填チュ−ブ２１を使ってＳＦ6 ガスなどに置換（大気圧
程度もしくは正加圧）する。次に、油圧シリンダ１０を
駆動させてプレ・モールド絶縁体２の円錐形上の先端を
右側に移動してエポキシユニット１内周のテーパー面に
嵌合させる。このとき、カバー内の雰囲気を乾燥空気や
窒素ガスを充填することもできる。In the operation of the present apparatus in such a component arrangement, the inside of the cover 4 is first evacuated. Subsequently, the gas filling tube 21 is used to replace the gas with SF 6 gas or the like (about atmospheric pressure or positive pressure). Next, the hydraulic cylinder 10 is driven to move the tip of the pre-molded insulator 2 on the conical shape to the right to fit the tapered surface on the inner periphery of the epoxy unit 1. At this time, the atmosphere in the cover can be filled with dry air or nitrogen gas.
【００１２】次に、このように接続部に取り付けたプレ
・モールド挿入治具を取り外し、図２に示すように接続
部保護管１７の端部にスプリングユニット１８を取り付
け、予め設定した圧力で押し金具３を押圧させる。次い
で、この周りに端銅管１９を被せ、この端銅管１９とＣ
Ｖケーブル１２の間を防水剤２０で被覆して接続部はで
きあがる。Next, the pre-mold insertion jig thus attached to the connection portion is removed, and a spring unit 18 is attached to the end of the connection portion protection tube 17 as shown in FIG. The metal fitting 3 is pressed. Next, an end copper tube 19 is put around the end copper tube 19 and C
The space between the V cables 12 is covered with a waterproofing agent 20 to complete the connection.
【００１３】[0013]
【発明の効果】以上説明したとおり、この発明のプレ・
モールド接続体挿入治具によれば、２７５ｋＶの大サイ
ズの接続部においても、エポキシユニットとプレ・モー
ルド絶縁体の嵌合がきわめて容易に取扱うことができ、
しかも電気的負性ガス中で行うことができるので、結露
を防ぎ、しかも異物の混入を防止することができる。そ
の結果、接続部の電気性能の信頼性を格段に向上させる
ことができる。As described above, according to the present invention,
According to the mold connector insertion jig, even in a large connection portion of 275 kV, the fitting of the epoxy unit and the pre-mold insulator can be handled very easily.
In addition, since the operation can be performed in an electrically negative gas, dew condensation can be prevented, and foreign matter can be prevented from being mixed. As a result, the reliability of the electrical performance of the connection portion can be significantly improved.
【図１】この発明のプレ・モールド接続体挿入治具を適
用して、プレ・モールド接続体をエポキシユニットに挿
入する状態を示す左側部分の断面図、FIG. 1 is a sectional view of a left part showing a state in which a pre-mold connector is inserted into an epoxy unit by applying a pre-mold connector insertion jig of the present invention;
【図２】ＣＶケーブル接続部の組立完了した状態を示す
左側部分の断面図である。FIG. 2 is a cross-sectional view of a left side portion showing a state in which assembly of a CV cable connection portion is completed.
１ エポキシユニット ２ プレ・モールド絶縁体 ３ 押し金具 ４ カバー ５ アダプタ金具 ６ レジュース金具 ７ 固定金具 ８ クッション層 ９ ホルダー １０ 油圧シリンダ １１ ガイドフランジ １２ ＣＶケーブル １３ 外部半導電層 １４ ケーブル絶縁体 １５ ケーブル導体 １６ 導体接続スリーブ １７ 保護管 １８ スプリングユニット １９ 端銅管 ２０ 防水剤 ２１ ＳＦ6 ガス充填チューブDESCRIPTION OF SYMBOLS 1 Epoxy unit 2 Pre-mold insulator 3 Press fitting 4 Cover 5 Adapter fitting 6 Rejuice fitting 7 Fixing fitting 8 Cushion layer 9 Holder 10 Hydraulic cylinder 11 Guide flange 12 CV cable 13 External semiconductive layer 14 Cable insulator 15 Cable conductor 16 conductor connection sleeve 17 protects tubes 18 spring unit 19 Tandokan 20 waterproofing agent 21 SF 6 gas filling tube
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平５−219623（ＪＰ，Ａ) 実開 平３−3129（ＪＰ，Ｕ) 実開 平４−47324（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.6，ＤＢ名) H02G 1/14 - 1/16 H02G 15/00 - 15/196──────────────────────────────────────────────────続 き Continuation of front page (56) References JP-A-5-219623 (JP, A) JP-A-3-3129 (JP, U) JP-A-4-47324 (JP, U) (58) Investigation Field (Int.Cl. 6 , DB name) H02G 1/14-1/16 H02G 15/00-15/196
Claims (1)
て、ケーブルシース上に油圧シリンダを取り付けた固定
治具を設置し、接続部と固定治具との間にカバーを設
け、このカバー内を脱気した後、ＳＦ6 などの電気的負
性ガスや乾燥空気などを充填した状態で油圧シリンダに
よりプレ・モールド絶縁体を装着するようにしたことを
特徴とするプレ・モールド絶縁体挿入治具。At a prefabricated connection portion for a power cable, a fixing jig having a hydraulic cylinder mounted thereon is installed on a cable sheath, a cover is provided between the connection portion and the fixing jig, and the inside of the cover is evacuated. A pre-mold insulator insertion jig characterized in that a pre-mold insulator is mounted by a hydraulic cylinder in a state of being filled with an electrically negative gas such as SF 6 or dry air after the above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3297598A JP2822730B2 (en) | 1991-10-18 | 1991-10-18 | Pre-mold insulator insertion jig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3297598A JP2822730B2 (en) | 1991-10-18 | 1991-10-18 | Pre-mold insulator insertion jig |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05111125A JPH05111125A (en) | 1993-04-30 |
| JP2822730B2 true JP2822730B2 (en) | 1998-11-11 |
Family
ID=17848636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3297598A Expired - Lifetime JP2822730B2 (en) | 1991-10-18 | 1991-10-18 | Pre-mold insulator insertion jig |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2822730B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111987654B (en) * | 2020-07-30 | 2021-07-30 | 郑州航空工业管理学院 | Power cable connecting device |
-
1991
- 1991-10-18 JP JP3297598A patent/JP2822730B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05111125A (en) | 1993-04-30 |
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