JPH0412416A - Insulation reinforcement method for high-pressure resin moulded insulator - Google Patents
Insulation reinforcement method for high-pressure resin moulded insulatorInfo
- Publication number
- JPH0412416A JPH0412416A JP11201190A JP11201190A JPH0412416A JP H0412416 A JPH0412416 A JP H0412416A JP 11201190 A JP11201190 A JP 11201190A JP 11201190 A JP11201190 A JP 11201190A JP H0412416 A JPH0412416 A JP H0412416A
- Authority
- JP
- Japan
- Prior art keywords
- insulator
- release agent
- fluorocarbonic
- resin molded
- high voltage
- 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
- 239000012212 insulator Substances 0.000 title claims abstract description 23
- 239000011347 resin Substances 0.000 title claims abstract description 12
- 229920005989 resin Polymers 0.000 title claims abstract description 12
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000009413 insulation Methods 0.000 title claims abstract description 10
- 230000002787 reinforcement Effects 0.000 title claims 2
- 239000003973 paint Substances 0.000 claims abstract description 9
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 14
- 229910052731 fluorine Inorganic materials 0.000 claims description 14
- 239000011737 fluorine Substances 0.000 claims description 14
- 239000006082 mold release agent Substances 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 12
- 230000006866 deterioration Effects 0.000 abstract description 7
- 239000010410 layer Substances 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 5
- 229920002430 Fibre-reinforced plastic Polymers 0.000 abstract description 4
- 239000003795 chemical substances by application Substances 0.000 abstract description 4
- 239000011151 fibre-reinforced plastic Substances 0.000 abstract description 4
- 239000011247 coating layer Substances 0.000 abstract description 3
- 239000007921 spray Substances 0.000 abstract description 2
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 238000002347 injection Methods 0.000 description 7
- 239000007924 injection Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 239000005871 repellent Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 230000002123 temporal effect Effects 0.000 description 2
- 229920001973 fluoroelastomer Polymers 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000002940 repellent Effects 0.000 description 1
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は屋外または多湿場所に設置する高電圧用の樹脂
モールド碍子の絶縁補強方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a method for reinforcing insulation of a high voltage resin molded insulator installed outdoors or in a humid place.
［従来の技術］
従来、碍子の絶縁劣化を防止するために、碍子の表面に
フッ素ゴム、フッ素樹脂などからなる塗料を塗布、硬化
して被覆層を形成する方法が提案されている（例えば特
開昭５８−１０２４１６号公報）。[Prior Art] Conventionally, in order to prevent insulation deterioration of insulators, a method has been proposed in which a paint made of fluororubber, fluororesin, etc. is applied to the surface of an insulator and cured to form a coating layer (for example, Publication No. 58-102416).
［発明が解決しようとする課題］
ところが、長時間碍子が雨水に曝された場合、碍子の表
面を雨水が流れ落ち、雨水の抵抗率で決まる漏洩電流が
流れる。そのため、表面に発生する放電によりフッ素樹
脂層の劣化を生じ長期的には絶縁性能の低下が起こるお
それがある。[Problems to be Solved by the Invention] However, when the insulator is exposed to rainwater for a long time, the rainwater flows down the surface of the insulator, causing a leakage current determined by the resistivity of the rainwater to flow. Therefore, there is a risk that the fluororesin layer will deteriorate due to the discharge generated on the surface, resulting in a decrease in insulation performance over the long term.
本発明は、長期的に絶縁性能の低下を防止することを目
的とするものである。The present invention aims to prevent deterioration of insulation performance over the long term.
［課題を解決するための手段］
本発明は、高圧用樹脂モールド碍子の絶縁方法において
、保守期間ごとに前記高圧用樹脂モールド碍子の表面に
フッ素系離型剤を塗布する方法である。[Means for Solving the Problems] The present invention is a method of insulating a high-pressure resin molded insulator, in which a fluorine-based mold release agent is applied to the surface of the high-pressure resin molded insulator every maintenance period.
［作用］
碍子表面にフッ素糸Ｍ型剤のように撥水性の良い材料を
塗布することにより、漏洩電流が減少し、さらに、部分
放電の発生も減少して保守期間内の絶縁性能の低下を防
ぐことができる。[Function] By applying a highly water-repellent material such as fluorine thread M-type agent to the insulator surface, leakage current is reduced, and the occurrence of partial discharge is also reduced, which prevents the deterioration of insulation performance during the maintenance period. It can be prevented.
［実施例〕 本発明を図に示す実施例について説明する。[Example〕 The present invention will be described with reference to embodiments shown in the drawings.
第１図は本発明の実施例を示す断面図で、ＦＲＰ（繊維
強化プラスチックス）により構成されたひだ部を有する
中空円筒部ｌの表面にフッ素樹脂塗料からなる被覆層２
を設けて碍子を構成し、保守時にその外側に、さらにフ
ッ素系離型剤（例えばダイキン工業製ダイフリースプレ
ーＡ７４１）をスプレーなどにより塗布してフッ素系離
型剤層３を形成したものである。４．５は中空円筒部ｌ
の両端に設けられた取付は部である。FIG. 1 is a sectional view showing an embodiment of the present invention, in which a coating layer 2 made of fluororesin paint is coated on the surface of a hollow cylindrical portion l having folds made of FRP (fiber reinforced plastics).
is provided to constitute an insulator, and during maintenance, a fluorine-based mold release agent (for example, Daikin Industries' Daifree Spray A741) is further applied by spraying to the outside to form a fluorine-based mold release agent layer 3. . 4.5 is the hollow cylindrical part l
The attachments provided at both ends of the are the parts.
このような方法により、碍子の表面の撥水性は著しく向
上し、漏洩電流を極端に下げることができる。By such a method, the water repellency of the surface of the insulator can be significantly improved, and leakage current can be extremely reduced.
碍子表面の撥水性を評価するために第１表にフッ素樹脂
塗料のみを塗布した場合と、さらにその上にフッ素系離
型剤を塗布した場合の接触角の比較を示す。In order to evaluate the water repellency of the insulator surface, Table 1 shows a comparison of the contact angles when only a fluororesin paint was applied and when a fluororesin mold release agent was further applied thereon.
第１表
この結果から、フッ素系離型剤を塗布することにより接
触角が増え、表面の撥水性が良くなることが分かる。Table 1 From the results, it can be seen that by applying a fluorine-based mold release agent, the contact angle increases and the water repellency of the surface improves.
そこで、この接触角の違いにより、注水時の漏洩電流が
どの程度具なるかを実験により確認したので、データを
示す。Therefore, we conducted an experiment to confirm how much leakage current during water injection is affected by this difference in contact angle, and the data is shown below.
注水量３ｍｍ／分、注水角度４５度、注水液抵抗率１０
００Ω・ｃｍの注水条件で電圧６． ９ｋＶ印加時の漏
洩電流の時間的変化を第２図に示す。Water injection amount: 3 mm/min, water injection angle: 45 degrees, water injection liquid resistivity: 10
Voltage 6.00Ω・cm water injection condition. Figure 2 shows the temporal change in leakage current when 9 kV was applied.
表面がフッ素樹脂塗料のみの場合は、注水２０分前後よ
り漏洩電流が急速に増加し、初期の値に比べ、３桁以上
の増加が見られる。When the surface is coated only with fluororesin paint, the leakage current increases rapidly after about 20 minutes of water injection, and increases by more than three orders of magnitude compared to the initial value.
一方、フッ素樹脂塗料の上にフッ素系離型剤を塗布した
場合は、長時間注水しても漏洩電流は初期値と殆ど変化
がな（、人にたいしても安全な漏洩電流領域（１，０ｍ
Ａ以下）に対し、０．０２ｍＡで、１桁以上余裕のある
ことがわかる。On the other hand, when a fluorine-based mold release agent is applied on top of a fluororesin paint, the leakage current hardly changes from the initial value even if water is poured for a long time (the leakage current range is safe for humans (1.0 m
A), it can be seen that at 0.02 mA, there is more than an order of magnitude margin.
また、部分放電特性の面でも、６．９ｋＶの電圧に対し
、フッ素樹脂塗料のみの場合の放電電荷量が５００ｐＣ
に対し、フッ素系離型剤を塗布した場合は、６ｐＣと極
端に少なくなり、したがって、電圧印加による放電劣化
も著しく低減される。In addition, in terms of partial discharge characteristics, the amount of discharge charge when using only fluororesin paint is 500 pC for a voltage of 6.9 kV.
On the other hand, when a fluorine-based mold release agent is applied, it is extremely low at 6 pC, and therefore, discharge deterioration due to voltage application is also significantly reduced.
以上は、ＦＲＰ表面にフッ素樹脂塗料を塗布したうえに
、さらにフッ素系離型剤をスプレーにより塗布したもの
であるが、ＦＲＰ表面に直接フッ素系離型剤を塗布した
もの、あるいはＦＲＰに耐候性カバー材を被せたものに
フッ素系離型剤を塗布したものについても同様の効果が
得られる。In the above example, a fluororesin paint is applied to the FRP surface, and a fluorine-based mold release agent is further applied by spraying. A similar effect can be obtained by applying a fluorine-based mold release agent to a cover material.
さらに、フッ素系離型剤の代りに、フッ素系撥油剤（例
えばダイキン工業性テックスガード）を用いても同様の
効果が得られる。Furthermore, the same effect can be obtained by using a fluorine-based oil repellent (for example, Daikin Kogyo Tex Guard) instead of the fluorine-based mold release agent.
［発明の効果］
以上述べたように、本発明によれば、碍子の表面にフッ
素系離型剤を塗布することにより、注水時の漏洩電流を
著しく低減することができる。さらに、部分放電による
劣化も殆どなく、塗布した離型剤の劣化期間内に再スプ
レーすると長期的にも信頼性のある碍子を提供できる効
果がある。[Effects of the Invention] As described above, according to the present invention, leakage current during water injection can be significantly reduced by applying a fluorine-based mold release agent to the surface of the insulator. Furthermore, there is almost no deterioration due to partial discharge, and if the applied mold release agent is resprayed within the deterioration period, it is possible to provide an insulator with long-term reliability.
第１図は本発明の実施例を示す断面図、第２図は漏洩電
流の時間的変化を示すグラフである。
ｌ・・・中空円筒部、２・・・被覆層、３・・・フッ素
系離型剤層、４．５・・・取付は部FIG. 1 is a sectional view showing an embodiment of the present invention, and FIG. 2 is a graph showing temporal changes in leakage current. l...Hollow cylindrical part, 2...Covering layer, 3...Fluorine mold release agent layer, 4.5...Mounting part
Claims (1)
高圧用樹脂モールド碍子の表面にフッ素系離型剤を塗布
することを特徴とする高圧用樹脂モールド碍子の絶縁補
強方法。 ２、前記高圧用樹脂モールド碍子がＦＲＰによって構成
され、その表面をフッ素樹脂塗料により被覆したもので
ある請求項１記載の高圧用樹脂モールド碍子の絶縁補強
方法。 ３、前記高圧用樹脂モールド碍子がＦＲＰによって構成
され、その表面に耐候性カバー材を被せたものである請
求項１記載の高圧用樹脂モールド碍子の絶縁補強方法。[Scope of Claims] 1. A method for reinforcing the insulation of a resin molded insulator for high voltage use, which comprises applying a fluorine-based mold release agent to the surface of the resin molded insulator for high voltage use. 2. The method for reinforcing the insulation of a high voltage resin molded insulator according to claim 1, wherein the high voltage resin molded insulator is made of FRP and its surface is coated with a fluororesin paint. 3. The insulation reinforcement method for a high voltage resin molded insulator according to claim 1, wherein the high voltage resin molded insulator is made of FRP and its surface is covered with a weatherproof cover material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11201190A JPH0412416A (en) | 1990-04-27 | 1990-04-27 | Insulation reinforcement method for high-pressure resin moulded insulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11201190A JPH0412416A (en) | 1990-04-27 | 1990-04-27 | Insulation reinforcement method for high-pressure resin moulded insulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0412416A true JPH0412416A (en) | 1992-01-17 |
Family
ID=14575738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11201190A Pending JPH0412416A (en) | 1990-04-27 | 1990-04-27 | Insulation reinforcement method for high-pressure resin moulded insulator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0412416A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2010008076A1 (en) * | 2008-07-18 | 2012-01-05 | シャープ株式会社 | Power introduction terminal for plasma processing apparatus and plasma processing apparatus |
| CN111091938A (en) * | 2019-11-26 | 2020-05-01 | 中国电力科学研究院有限公司 | Preparation method of super self-cleaning insulator |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5931751A (en) * | 1982-08-17 | 1984-02-20 | Daikin Ind Ltd | Urethane compound containing fluorine and use thereof |
-
1990
- 1990-04-27 JP JP11201190A patent/JPH0412416A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5931751A (en) * | 1982-08-17 | 1984-02-20 | Daikin Ind Ltd | Urethane compound containing fluorine and use thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2010008076A1 (en) * | 2008-07-18 | 2012-01-05 | シャープ株式会社 | Power introduction terminal for plasma processing apparatus and plasma processing apparatus |
| CN111091938A (en) * | 2019-11-26 | 2020-05-01 | 中国电力科学研究院有限公司 | Preparation method of super self-cleaning insulator |
| CN111091938B (en) * | 2019-11-26 | 2022-09-30 | 中国电力科学研究院有限公司 | Preparation method of super self-cleaning insulator |
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