JPS6332009B2 - - Google Patents
Info
- Publication number
- JPS6332009B2 JPS6332009B2 JP54153548A JP15354879A JPS6332009B2 JP S6332009 B2 JPS6332009 B2 JP S6332009B2 JP 54153548 A JP54153548 A JP 54153548A JP 15354879 A JP15354879 A JP 15354879A JP S6332009 B2 JPS6332009 B2 JP S6332009B2
- Authority
- JP
- Japan
- Prior art keywords
- flange
- insulating spacer
- spacer
- conduit
- insulating
- 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
- 125000006850 spacer group Chemical group 0.000 claims description 49
- 239000002184 metal Substances 0.000 claims description 19
- 229910052751 metal Inorganic materials 0.000 claims description 19
- 239000004033 plastic Substances 0.000 claims description 14
- 229920003023 plastic Polymers 0.000 claims description 14
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 239000004020 conductor Substances 0.000 claims description 5
- 239000012212 insulator Substances 0.000 description 12
- 238000003754 machining Methods 0.000 description 4
- 230000035882 stress Effects 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000010137 moulding (plastic) Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
Landscapes
- Installation Of Bus-Bars (AREA)
Description
【発明の詳細な説明】
本発明は絶縁性ガスが充填された管路気中送電
線路又はガス絶縁開閉装置等の管路内に配置され
た導体を支持する絶縁スペーサに関し、詳しくは
絶縁スペーサのフランジ部をプラスチツクリング
とした絶縁スペーサに関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an insulating spacer that supports a conductor placed in a conduit such as an aerial power transmission line or a gas-insulated switchgear filled with an insulating gas, and more specifically, This invention relates to an insulating spacer whose flange portion is a plastic ring.
絶縁スペーサは管路内に配設された導体を絶縁
支持すると同時に導体に短絡電流が流れた場合の
電磁力並びに管路が一定長さ毎にガス区分された
場合に、絶縁スペーサがガス区分用隔壁としての
圧力に耐えなければならない。従つて絶縁スペー
サのフランジ部の肉厚はスペーサ絶縁体である注
型樹脂の強度に見合つて決定される。 The insulating spacer provides insulating support for the conductor installed in the conduit, and at the same time, the insulating spacer protects against electromagnetic force when a short circuit current flows through the conductor, and when the conduit is divided into gas sections of a certain length. It must withstand pressure as a bulkhead. Therefore, the thickness of the flange portion of the insulating spacer is determined depending on the strength of the casting resin that is the spacer insulator.
又絶縁スペーサのフランジはそれに配置された
複数個のメネジに螺合された全ネジボルトで管路
のフランジに締付固着せられ、外気に曝されて使
用される場合が多い。このことから絶縁スペーサ
のフランジ部は管路のフランジと間隙なく密着さ
せ、フランジ間の接合面よりの水分の浸入を防
ぎ、フランジの腐食を防止することが必要であ
る。従つて絶縁スペーサフランジ部に機械加工を
施してなる管路フランジと同程度の平面度が要求
される。 Further, the flange of the insulating spacer is often tightened and fixed to the flange of the conduit using full-threaded bolts screwed into a plurality of female threads disposed thereon, and is used while being exposed to the outside air. For this reason, it is necessary that the flange portion of the insulating spacer be brought into close contact with the flange of the conduit without any gaps, to prevent moisture from entering through the joint surface between the flanges, and to prevent corrosion of the flange. Therefore, flatness comparable to that of a conduit flange formed by machining the insulating spacer flange portion is required.
一般に絶縁スペーサを製作する際、スペーサフ
ランジ部にメネジを有する金属部材を埋込んでス
ペーサ絶縁体と同時にフランジ部も注型する方式
は、注型した樹脂の熱硬化の際起る収縮でフラン
ジ部の平面度は悪く、管路フランジと締付固着し
たとき両フランジ間に間隙ができ、水分の浸入が
あり、また防塵上も好ましくない。これを回避す
るために、注型した絶縁スペーサのフランジ部を
機械加工しフランジ部の平面度を出す方法は機械
加工歪を絶縁スペーサに与えるほか、絶縁スペー
サはSF6の如き絶縁性ガスの分解生成物に耐える
必要から注型材料の充填材として使用するアルミ
ナのために硬度が高く、従つて切削が非常に困難
であるためにコスト的にも好ましくない。かかる
点から絶縁スペーサのフランジは金属リングを用
いているのが一般的である。 Generally, when manufacturing insulating spacers, a metal member with a female thread is embedded in the spacer flange and the flange is cast at the same time as the spacer insulator. The flatness of the pipe flange is poor, and when the pipe flange is fastened to the pipe flange, a gap is created between the two flanges, allowing moisture to enter, and it is also not desirable for dust prevention. In order to avoid this, the method of machining the flange part of the cast insulating spacer to obtain flatness of the flange part applies machining strain to the insulating spacer, and the insulating spacer is also susceptible to decomposition of insulating gas such as SF 6 . Because alumina is used as a filler in the casting material because it needs to withstand the product, it has high hardness and is therefore very difficult to cut, which is not desirable in terms of cost. From this point of view, a metal ring is generally used as the flange of the insulating spacer.
絶縁スペーサは前記の如く機械的強度が必要で
あり、又平面度の関係からスペーサフランジに金
属リングを用いた場合、スペーサ絶縁体と金属リ
ングの界面に強度的弱点が生じる。従つてスペー
サ絶縁体と接する金属リング側の形状は機械的応
力負荷の際応力の集中が起きないよう特殊な形状
に機械加工される。 As mentioned above, the insulating spacer requires mechanical strength, and when a metal ring is used as the spacer flange due to flatness, a strength weakness occurs at the interface between the spacer insulator and the metal ring. Therefore, the shape of the metal ring side in contact with the spacer insulator is machined into a special shape so that no stress concentration occurs when mechanical stress is applied.
本発明者らは機械的強度が大で且つ締付固着し
やすく従つて防水、防塵上も好ましい絶縁スペー
サフランジ部について種々検討した結果、絶縁ス
ペーサのフランジ部を、従来の金属リングに代え
てプラスチツク成型品で構成し、しかもスペーサ
絶縁体部と接する側の応力集中を排除するために
金型成型し或いは必要に応じて機械加工を施こ
し、さらに管路フランジと接するプラスチツクリ
ング面或いはその全周に金属皮膜を施こしてなる
平面度の良好なフランジを有する絶縁スペーサを
発明した。 The inventors of the present invention have conducted various studies on the flange portion of an insulating spacer that has high mechanical strength, is easy to tighten and secure, and is therefore preferable from a waterproof and dustproof perspective. It consists of a molded product, and is molded with a mold or machined as necessary to eliminate stress concentration on the side in contact with the spacer insulator, and the plastic ring surface in contact with the pipe flange or its entire circumference is We have invented an insulating spacer that has a flange with good flatness, which is made by applying a metal coating to the flange.
以下に本発明を図面に従つて説明する。 The present invention will be explained below with reference to the drawings.
第１図は絶縁スペーサの周辺関係位置図であ
り、第２図は特にそのフランジ部を拡大して示し
た図である。絶縁スペーサ１０はメネジを有する
金属ブツシユを埋込んでプラスチツクで成形し、
管路２７のフランジ２８に接する部分に金属皮膜
を施こした平滑な面２９を有するプラスチツクリ
ング２１とエポキシ樹脂よりなるスペーサ絶縁体
２２並びにスペーサ絶縁体に埋込まれた充電部の
シールド電極２３で構成される。絶縁スペーサ１
０はスペーサ絶縁体２２のフランジ部にＯ−リン
グ３０を有し、プラスチツクリング２１に埋込ま
れた金属ブツシユのメネジ２５に螺合された全ネ
ジスタツト２６で管路２７のフランジ２８にＯ−
リング３０を介してナツト３１で締付けられる。
プラスチツクリング２１の形状はスペーサ絶縁体
２２との接合面において、プラスチツクリング２
１と嵌合する接合面３２，３２′を有し、径方向
はプラスチツクリング２１とスペーサ絶縁体２２
間に間隙３３，３３′を有する構造とする。 FIG. 1 is a diagram showing the peripheral relationship of the insulating spacer, and FIG. 2 is an enlarged view showing the flange portion thereof in particular. The insulating spacer 10 is made of plastic with a metal bushing having a female thread embedded therein.
A plastic ring 21 having a smooth surface 29 with a metal coating applied to the portion in contact with the flange 28 of the conduit 27, a spacer insulator 22 made of epoxy resin, and a shield electrode 23 of the live part embedded in the spacer insulator. configured. Insulating spacer 1
0 has an O-ring 30 on the flange portion of the spacer insulator 22, and an O-ring on the flange 28 of the conduit 27 with a fully threaded stud 26 screwed into the female thread 25 of the metal bush embedded in the plastic ring 21.
It is tightened with a nut 31 via a ring 30.
The shape of the plastic ring 21 is such that the shape of the plastic ring 21 is such that the shape of the plastic ring 21 is
1, and the plastic ring 21 and the spacer insulator 22 in the radial direction.
The structure has gaps 33, 33' between them.
図のようにプラスチツクリング２１とスペーサ
絶縁体を接着剤で固着しないので、ガス区分等の
際の加圧力に対してスペーサ絶縁体２２の外周部
の支持構造を拘束形から自由形にすることで機械
的強度並びに熱的ストレスを緩和し、スペーサの
信頼性は向上する。又管路のフランジと接するプ
ラスチツクリングはプラスチツク成形後、成形歪
による平面度の修正およびプラスチツクと金属皮
膜の接着性を改善する意図から、脱脂洗浄し接着
性良好で可撓性を有するプライマーを塗布し乾燥
後、金属を真空蒸着すれば管路のフランジと同程
度の平面度を有する金属皮膜を有することができ
る。金属の蒸着に先立ち処理するプライマーはポ
リウレタン塗料、蒸着金属はアルミニウムとすれ
ば管路のフランジとのなじみの点で好ましい。 As shown in the figure, since the plastic ring 21 and the spacer insulator are not fixed with adhesive, the support structure of the outer periphery of the spacer insulator 22 can be changed from a constrained type to a free type to withstand the pressure applied during gas division, etc. Mechanical strength and thermal stress are alleviated, and the reliability of the spacer is improved. In addition, after plastic molding, the plastic ring in contact with the flange of the pipeline is degreased and cleaned, and a flexible primer with good adhesion is applied to correct the flatness due to molding distortion and to improve the adhesion between the plastic and metal coating. After drying, if a metal is vacuum-deposited, a metal coating having a flatness comparable to that of the flange of the pipe can be obtained. It is preferable to use polyurethane paint as the primer treated prior to metal vapor deposition and to use aluminum as the vapor-deposited metal in terms of compatibility with the flange of the pipe.
かくして本発明の絶縁スペーサは従来の絶縁ス
ペーサフランジ部に金属リングを用いたものに比
べ機械加工の切削に便であつてコスト的に低減で
き、重量も小さくて済み、又絶縁スペーサフラン
ジと管路フランジは間隙なく密着出来るので、水
分の浸入もなく信頼性の高い絶縁スペーサであ
る。 Thus, the insulating spacer of the present invention is easier to cut in machining than the conventional insulating spacer using a metal ring for the flange part, can reduce costs, and is small in weight. Since the flange can be tightly attached without any gaps, it is a highly reliable insulating spacer with no moisture intrusion.
第１図は絶縁スペーサの周辺関係位置図、第２
図は絶縁スペーサフランジ部の拡大図である。
１０……絶縁スペーサ、２１……プラスチツク
リング、２２……スペーサ絶縁体、２５……メネ
ジ、２６……全ネジスタツト、２７……管路、２
８……管路フランジ、２９……平滑接合面、３０
……Ｏ−リング、３２，３２′，３３，３３′……
間隙。
Figure 1 is a diagram of the peripheral relationship of the insulating spacer, Figure 2
The figure is an enlarged view of the insulating spacer flange. DESCRIPTION OF SYMBOLS 10... Insulating spacer, 21... Plastic ring, 22... Spacer insulator, 25... Female thread, 26... Full thread stud, 27... Conduit, 2
8... Pipe flange, 29... Smooth joint surface, 30
...O-ring, 32, 32', 33, 33'...
gap.
Claims (1)
た管路間を互に連通し且つ前記管路内に配設され
た導体を支持するようになした絶縁スペーサにお
いて、前記絶縁スペーサは大気側に露出されて管
路のフランジで締付けられる前記絶縁スペーサの
フランジ部をメネジを有する金属部材を埋込んだ
プラスチツク成型品で構成し且つ該管路フランジ
と接する部分を金属皮膜を施こして平滑になした
絶縁スペーサ。 ２ 管路フランジと接する絶縁スペーサフランジ
部分の金属皮膜が接する面のみである特許請求の
範囲第１項記載の絶縁スペーサ。 ３ 管路フランジと接する絶縁スペーサフランジ
部分の金属皮膜がフランジ全表面である特許請求
の範囲第１項記載の絶縁スペーサ。[Scope of Claims] 1. An insulating spacer having a conductor disposed therein, interconnecting pipe lines filled with an insulating gas, and supporting the conductor disposed within the pipe lines. , the insulating spacer is made of a plastic molded product in which a metal member having a female thread is embedded in the flange portion of the insulating spacer which is exposed to the atmosphere and is tightened by the flange of the conduit, and the part in contact with the conduit flange is made of metal. An insulating spacer made smooth by applying a film. 2. The insulating spacer according to claim 1, wherein the insulating spacer has only the surface in contact with the metal coating of the flange portion of the insulating spacer that contacts the conduit flange. 3. The insulating spacer according to claim 1, wherein the metal coating on the part of the insulating spacer flange that contacts the conduit flange covers the entire surface of the flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15354879A JPS5678313A (en) | 1979-11-29 | 1979-11-29 | Insulating spacer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15354879A JPS5678313A (en) | 1979-11-29 | 1979-11-29 | Insulating spacer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5678313A JPS5678313A (en) | 1981-06-27 |
| JPS6332009B2 true JPS6332009B2 (en) | 1988-06-28 |
Family
ID=15564909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15354879A Granted JPS5678313A (en) | 1979-11-29 | 1979-11-29 | Insulating spacer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5678313A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012118143A (en) | 2010-11-29 | 2012-06-21 | Seiko Precision Inc | Focal plane shutter and optical apparatus |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4997797U (en) * | 1972-12-16 | 1974-08-22 |
-
1979
- 1979-11-29 JP JP15354879A patent/JPS5678313A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5678313A (en) | 1981-06-27 |
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