JPH0219741A - Foreign matter observing system for plastic insulated cable - Google Patents
Foreign matter observing system for plastic insulated cableInfo
- Publication number
- JPH0219741A JPH0219741A JP16923088A JP16923088A JPH0219741A JP H0219741 A JPH0219741 A JP H0219741A JP 16923088 A JP16923088 A JP 16923088A JP 16923088 A JP16923088 A JP 16923088A JP H0219741 A JPH0219741 A JP H0219741A
- Authority
- JP
- Japan
- Prior art keywords
- observation
- sample
- foreign matter
- cleaning
- chamber
- 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
- 239000004033 plastic Substances 0.000 title claims description 9
- 229920003023 plastic Polymers 0.000 title claims description 9
- 239000012212 insulator Substances 0.000 claims abstract description 15
- 238000004140 cleaning Methods 0.000 claims description 52
- 239000004094 surface-active agent Substances 0.000 claims description 6
- 239000007864 aqueous solution Substances 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 239000000428 dust Substances 0.000 abstract description 12
- 238000005406 washing Methods 0.000 abstract description 5
- 239000007788 liquid Substances 0.000 description 8
- 235000006650 Syzygium cordatum Nutrition 0.000 description 5
- 240000005572 Syzygium cordatum Species 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 239000004698 Polyethylene Substances 0.000 description 4
- 230000003749 cleanliness Effects 0.000 description 4
- 229920003020 cross-linked polyethylene Polymers 0.000 description 4
- 239000004703 cross-linked polyethylene Substances 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- 238000005259 measurement Methods 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000002834 transmittance Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method 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
- 230000003628 erosive effect Effects 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、架橋化ポリエチレン（ＸＬＰＥ）絶縁ケーブ
ル又はポリエチレン（ＰＥ）絶縁ケーブル等の絶縁体に
内包される異物・ボイド・水トリー等の観察システムに
関するものである。Detailed Description of the Invention [Field of Industrial Application] The present invention is a method for observing foreign objects, voids, water trees, etc. contained in an insulator such as a cross-linked polyethylene (XLPE) insulated cable or a polyethylene (PE) insulated cable. It's about systems.
ＰＥやＸＬＰＥを絶縁体としたケーブル、特に高圧電カ
ケ−プルでは、その絶縁体中に含まれる異物やボイドの
大きさ、数、形状等を漏べることは、重要な試験項目の
一つである。また、実使用されたケーブルにおいては、
それら絶縁体の中に、水トリーが発生している場合、同
様に大きさ、数、形状等を調査することになる。For cables with PE or XLPE insulators, especially high-voltage electrical cables, one of the important test items is to detect the size, number, shape, etc. of foreign objects and voids contained in the insulator. It is. In addition, in the cable actually used,
If water trees occur in these insulators, the size, number, shape, etc. will be investigated in the same way.
これら、異物・ボイド・水トリーの各種測定は、まず、
絶縁体の観察用試料の作成から始める。第２図（ａ）に
示されるように絶縁体２１は、薄いスライス片２２に切
り出される０次に第２図Φ）に示すようにスライス片２
２は洗浄槽２３に入れられて、表面に付着したゴミが洗
い落される。すなわち、絶縁体内部を透視してみる時、
表面のゴミは、内包される異物と見分けがつきにくく、
これによる誤測定を防止するためである。ここでの洗浄
は界面活性剤を含んだ水溶液が一１的に使用されている
。それは、試料の洗浄の目的と同時にスライス片の表面
に切り出し時にナイフ等によりついた細い傷に界面活性
剤を含んだ水溶液が入り込み、表面を薄い膜でおおうこ
とにより、光の透過率を上げ、また、乱反射を防くとい
う働きを兼ねる。この様にして、表面に付着したゴミが
洗浄され、表面処理されたスライス片２２は第２図（Ｃ
）に示すように観察台２４上におかれ観察装置２５によ
り目的とする絶縁体に含まれる異物やボイド、或いは水
トリーの観察が行われる。To measure these foreign objects, voids, and water trees, first,
Start by creating a specimen for observation of an insulator. As shown in FIG. 2(a), the insulator 21 is cut into thin slices 22. As shown in FIG.
2 is placed in a cleaning tank 23, and dirt adhering to the surface is washed off. In other words, when looking through the inside of an insulator,
Dust on the surface is difficult to distinguish from foreign objects contained within.
This is to prevent erroneous measurements caused by this. For cleaning here, an aqueous solution containing a surfactant is generally used. At the same time as cleaning the sample, an aqueous solution containing a surfactant enters the thin scratches made on the surface of the slice by a knife, etc. during cutting, and by covering the surface with a thin film, it increases the light transmittance. It also serves to prevent diffused reflection. In this way, the dust adhering to the surface is cleaned, and the surface-treated slice piece 22 is shown in Figure 2 (C
), foreign matter, voids, or water trees contained in the target insulator are observed using an observation device 25 placed on an observation table 24.
しかながらこの様にして行われる異物・ボイド・水トリ
ー観察（以下異物観察と称す、）では先に述べた洗浄は
、実際には、洗浄槽２３の中で大部分のゴミは落せるも
のの、逆に、ゴミは洗浄液の中に混ざり、この汚れた洗
浄液がスライス片２２の表面に被膜を作り残されるため
、いくらかのゴミはスライス片２２の表面についたまま
観察台２４にのることになる。However, in the observation of foreign objects, voids, and water trees performed in this way (hereinafter referred to as foreign object observation), although the cleaning described above can actually remove most of the dirt in the cleaning tank 23, On the other hand, the dirt gets mixed into the cleaning liquid, and this dirty cleaning liquid leaves behind a film on the surface of the slice piece 22, so some of the dust remains on the observation table 24 while remaining on the surface of the slice piece 22. .
或いは、洗浄槽２３から、観察台２４への移動中に、若
しくは観察台２４の上等で外部からスライス片２２に触
れるチャンスが多々あるため、ゴミが表面につくことが
多いという欠点があった。Alternatively, since there are many opportunities to touch the slice piece 22 from the outside while moving from the cleaning tank 23 to the observation table 24 or on top of the observation table 24, there is a drawback that dust often adheres to the surface. .
本発明の目的は、従来の異物観察上の問題点を解消し、
測定エラーのないプラスチック絶縁ケーブルの異物観察
システムを提供することにある。The purpose of the present invention is to solve the problems in conventional foreign object observation,
The object of the present invention is to provide a system for observing foreign objects in plastic insulated cables without measurement errors.
（ＬＩＵを解決するための手段及び作用）本発明の要旨
は、スライス片の洗浄から観察台へのセツティングまで
を清浄空間内で行い、かつ清浄空間及び洗浄媒体の清浄
化を連続して行うことにより観察試料の表面のゴミ付着
防止を完全に行い、高精度で異物観察を可能にしたもの
である。(Means and actions for solving LIU) The gist of the present invention is to perform the process from cleaning the slice piece to setting it on the observation table in a clean space, and to continuously clean the clean space and the cleaning medium. This completely prevents dust from adhering to the surface of the observation sample, making it possible to observe foreign objects with high precision.
即ち１本発明の上記目的は、絶縁テープより切り出した
薄い絶縁体のスライス片の洗浄から、該スライス片を観
察装置の試料台にセットするまでの作業を清浄空間内で
行うことを特徴とするプラスチック絶縁ケーブルの異物
観察システムによって、又その清浄空間が仕切られた少
くとも１つの洗浄室と観察室よりなることを特徴とする
請求ｒＩＩ＆ｌ）記載のプラスチック絶縁ケーブルの異
物観察装置によって、更にその仕切られた清浄空間が夫
々の連続的清浄手段又は及び連続的洗浄媒体の濾過手段
を具備したことを特徴とする請求項（１）又は（２）の
異物観察システム及び装置によって、更に又その洗浄媒
体が界面活性剤入り水溶液であることを特徴とする請求
項（＋１． （２１又は（３）記載の異物観察システム
及び装置によって達成される。Namely, the above object of the present invention is characterized in that the operations from cleaning a thin insulator slice cut out from an insulating tape to setting the slice on a sample stage of an observation device are performed in a clean space. By the system for observing foreign objects in plastic insulated cables, and further by the apparatus for observing foreign objects in plastic insulated cables according to claim rII&l), the clean space of which is partitioned into at least one cleaning chamber and an observation chamber. The foreign object observation system and apparatus according to claim 1 or 2, characterized in that the cleaned space is provided with a respective continuous cleaning means or a continuous cleaning medium filtration means, and furthermore the cleaning medium is (21) is an aqueous solution containing a surfactant.
本発明のシステムで用いられる清浄空間とは空間の塵埃
を除去した状態にあることをいう。その具体的手段は例
えば空間内の空気を濾過してＷ１環する方法によって作
られる０本発明における洗浄媒体としては、液体でも、
気体でも良い。液体としては、例えば従来手段で述べた
界面活性入り水溶液、シリコン油、ＯＦ油等の油等があ
げられる。A clean space used in the system of the present invention refers to a space in which dust has been removed. For example, the cleaning medium in the present invention may be a liquid,
It may be a gas. Examples of the liquid include the surfactant-containing aqueous solution mentioned in the conventional section, and oils such as silicone oil and OF oil.
また、気体としては、空気、窒素ガス等の浸食性や危険
性のない気体なら何でもよい。これらを用いて試料に付
着した異物を洗浄する。The gas may be any non-erosive or dangerous gas such as air or nitrogen gas. Use these to clean foreign matter adhering to the sample.
本発明における観察装置とは、各種顕微鏡及び顕微鏡用
テレビ、写真機、撮影機などをいう。The observation device in the present invention refers to various types of microscopes, televisions for microscopes, photographic devices, photographic devices, and the like.
本発明において洗浄空間を仕切ることはそれぞれ異なっ
た目的の空間を乱さないためで例えば洗浄室は空気の流
通が激しくても、観察室はむしろ空気の流通は静かでな
ければならないからである。In the present invention, the cleaning space is partitioned in order not to disturb the spaces for different purposes.For example, even if the cleaning room has strong air circulation, the observation room must have quiet air circulation.
又清浄度においても差があって良いからである。This is also because there may be a difference in cleanliness.
本発明は上記により、空気中の塵埃の付着及び洗浄液中
の異物の浮遊がなくなり試料に異物の付着を防ぐことが
出来る。As described above, the present invention eliminates the adhesion of dust in the air and the floating of foreign substances in the cleaning liquid, making it possible to prevent the attachment of foreign substances to the sample.
〔実 施 例）
本発明の１実施例を図を用いて説明するつ１ｕシ本発明
は本実施例のみに限られるものではない。[Example] An example of the present invention will be described with reference to the drawings, but the present invention is not limited to this example.
本システムはサンプルの洗浄から観察台までを大きく１
つの密閉された清浄室内１内に置くことが要素である。This system covers everything from sample cleaning to the observation table in one step.
The key is to place it in one sealed clean room.
またこの清浄室１ば内部が第１次洗浄槽室２、第２次洗
浄槽室３、及び観察室４の３つの小部屋に仕切られてい
る。The inside of this clean room 1 is partitioned into three small rooms: a primary cleaning tank room 2, a secondary cleaning tank room 3, and an observation room 4.
各部室２，３．４には、それぞれ室内の清浄手段又は及
び洗浄媒体の濾過手段として循環送風機又は循環ポンプ
５，６．７及び空気又は液体用フィルター８．９．１０
を備えている様なシステム概要となっている。Each compartment 2, 3.4 is equipped with a circulation blower or circulation pump 5, 6.7 and an air or liquid filter 8.9.10 as means for cleaning the room or filtering the cleaning medium, respectively.
The outline of the system is such that it is equipped with the following.
次に各々の働きについて以下に詳述する。Next, each function will be explained in detail below.
まず、第１次洗浄槽室は、観察試料のストック及び粗洗
いが目的とされる。スライス片２２の様に観察のために
切り出された観察試料は表面にゴミの付いたまま、試料
投入口１１から第１次洗浄槽室２に入れられる。洗浄槽
内部には洗浄の為の媒体があり、かつこの媒体は循環ポ
ンプ又はファン５により絶えず速い流れで循環している
ため、当該槽室２に投入されたサンプルは異物は洗い流
され、この流れによりまず簡単に落ちる。洗い流された
異物はフィルター８に集積される。これにより洗浄媒体
の清浄度は常に保たれる。First, the primary cleaning tank room is used for stocking and rough cleaning of observation samples. An observation sample cut out for observation, such as the slice piece 22, is put into the first cleaning tank chamber 2 through the sample input port 11 with dust still attached to the surface. There is a cleaning medium inside the cleaning tank, and this medium is constantly circulated in a fast flow by the circulation pump or fan 5, so foreign substances are washed away from the sample put into the tank chamber 2, and this flow It falls off easily. The washed away foreign matter is accumulated on the filter 8. This ensures that the cleanliness of the cleaning medium is maintained at all times.
次に、第１？ｊｒ、浄槽室２により 洗浄された試料２
２は仕切り壁１３を経て第２次洗浄槽室３に、移送され
る。この移送手段としては、マジックハンド１２や、自
動移送装置等が用いられる。Next, the first? jr, sample 2 cleaned by septic tank room 2
2 is transferred to the secondary cleaning tank chamber 3 via the partition wall 13. As this transfer means, a magic hand 12, an automatic transfer device, etc. are used.
第２次洗浄槽室３内では、試料２２表面に残り°ζいる
異物ゴミを、表面の拭い落としにより強制的に排除する
。拭い落としの手段は、マジックハンド１２による試料
の固定、ブラシ等によるブラッシング、または洗浄媒体
のジェット吹きつけによる吹き飛ばし等が使用される。In the secondary cleaning tank chamber 3, foreign particles remaining on the surface of the sample 22 are forcibly removed by wiping the surface. As a means for wiping off, fixing the sample with the magic hand 12, brushing with a brush or the like, blowing off with a jet of cleaning medium, etc. are used.
この様にして、試料２２の表面より強制的に落とされた
異物ゴミは、第１洗浄槽室２同様、循環ポンプ又は循環
送風機６による流れにのりフィルター９によって除去さ
れる。これにより、同洗浄槽室３内の清浄さは常に保た
れる。In this way, the foreign particles forcibly dropped from the surface of the sample 22 are removed by the filter 9 along with the flow caused by the circulation pump or circulation blower 6, as in the first cleaning tank chamber 2. Thereby, the cleanliness inside the cleaning tank chamber 3 is always maintained.
以上により表面より異物ゴミの除去された資料２２は仕
切り壁１４を経て観察室４に移送され、観察台２４にセ
ツティングされる。観察室４には空間を清浄化するため
の清浄手段として空気を循環濾過する循環送風機７及び
フィルター１０を有しており、これにより、観察台２４
の周囲環境の清浄さが保たれることになる。尚、２次洗
浄槽室３から観察室４までの試料の移送ならびに観察台
への試料のセンティングの方法としてはマジックハンド
や、自動移送装置や自動貼付装置などが用いられる。The material 22 from which foreign matter and dust have been removed from the surface as described above is transferred to the observation room 4 via the partition wall 14 and set on the observation table 24. The observation room 4 has a circulation blower 7 and a filter 10 for circulating and filtering air as a cleaning means for cleaning the space.
The cleanliness of the surrounding environment will be maintained. Note that a magic hand, an automatic transfer device, an automatic pasting device, etc. are used to transfer the sample from the secondary cleaning tank chamber 3 to the observation room 4 and to place the sample on the observation table.
上述した実施例では洗浄槽室は２つとしたが、必要に応
し、１つ以上の部屋であればよく、最低１つの部屋に内
在する清浄手段又は及び洗浄媒体を清浄に保つａ過循環
機構をもたせておけば、基本的に所期の目的は達せられ
る。In the above-described embodiment, there are two cleaning tank chambers, but if necessary, there may be one or more chambers, and at least one chamber includes a cleaning means or an overcirculation mechanism for keeping the cleaning medium clean. If you have these, you can basically achieve your intended purpose.
また、洗浄媒体としては、界面活性剤を含んだ水／８液
が簡便で取り扱い上も、また、ケーブル絶縁体の材質と
してのＩＩＥ、ＸＬｌ’Ｆ、等へのなじみもよく、最も
適していると言える。In addition, as a cleaning medium, water/8 liquid containing a surfactant is the most suitable because it is easy to handle, easy to handle, and compatible with cable insulator materials such as IIE and XLl'F. I can say that.
気体を洗浄媒体として使用しても差し支えないが、その
場合、試料の表面の光透過性の向上、乱反射抑止の被膜
処理を洗浄から観察台へのセツティング間に入れる必要
がある。また、静電気が試料に起ると逆にゴミを吸い寄
せることになる為、その際は、静電気防止の為、接地し
た金属ブラシ等を洗浄槽内に設備しておくことが必要と
なる。Gas may be used as the cleaning medium, but in that case, it is necessary to apply a coating treatment to improve the light transmittance of the surface of the sample and to suppress diffuse reflection between cleaning and setting it on the observation table. Furthermore, if static electricity occurs on the sample, it will attract dust, so in that case, it is necessary to install a grounded metal brush or the like in the cleaning tank to prevent static electricity.
〔発明の効果］
本発明のシステムによりＰＥ、 ＸＬＰＥ等のプラスチ
ック絶縁体の異物観察の際、誤測定の原因となる試料表
面のゴミの除去を確実にし、かつ試料表面の光の透過性
を高め精度の高い観察が可能となる。[Effects of the Invention] The system of the present invention ensures the removal of dust on the sample surface that causes erroneous measurements when observing foreign objects on plastic insulators such as PE and XLPE, and increases the light transmittance of the sample surface. Highly accurate observation becomes possible.
第１図は本発明のプラスチック絶縁ケーブルの異物観察
システムの概念説明図、第２図（（資）、 （ｂｌ。
［Ｃ１は、従来のプラスチック絶縁ケーブルの絶縁体の
スライス片の切り出しから観察するまでの異物観察シス
テムの説明図である。
■ ・・清浄空間
２・・・第１次洗浄槽室
３・・・第２次洗浄槽室
４・・・観察室
５．６．７・・・循環ポンプ又は送風機８．９．１０・
・・液体又は気体用フィルター１１・・・試料投入口
１２・・・マジックハンド
１３．１４・・・仕切り壁
２１・・・絶縁体
２２・・・スライス片（試料）
２３・・・洗浄槽 ２４・・・観察台２５ ・
・観察装置
冨
り
第
図Figure 1 is a conceptual explanatory diagram of the system for observing foreign objects in plastic insulated cables according to the present invention, and Figure 2 is a conceptual illustration of the system for observing foreign objects in plastic insulated cables according to the present invention. It is an explanatory diagram of the foreign matter observation system up to the following steps.■...Clean space 2...Primary cleaning tank room 3...Second cleaning tank room 4...Observation room 5.6.7... Circulation pump or blower 8.9.10・
... Liquid or gas filter 11 ... Sample input port 12 ... Magic hand 13.14 ... Partition wall 21 ... Insulator 22 ... Slice piece (sample) 23 ... Washing tank 24 ... Observation stand 25 ... Observation device wealth chart
Claims (4)
ス片の洗浄から、そのスライス片を観察装置の試料台に
セットするまでの作業を清浄空間内で行うことを特徴と
するプラスチック絶縁ケーブルの物観察システム。(1) Observation of plastic insulated cables characterized by the process of cleaning thin slices of insulator cut out from insulated cables and setting the slices on the sample stage of an observation device in a clean space. system.
室と、観察室とよりなることを特徴とする請求項１記載
のプラスチック絶縁ケーブルの異物観察装置。(2) The apparatus for observing foreign matter in a plastic insulated cable according to claim 1, wherein the clean space comprises at least one partitioned cleaning chamber and an observation chamber.
又は及び連続的洗浄媒体の濾過手段を具備したことを特
徴とする請求項（１）又は（２）の異物観察システム及
び装置。(3) The foreign object observation system and apparatus according to claim 1 or 2, wherein the partitioned clean space is provided with respective continuous cleaning means or continuous cleaning medium filtration means.
を特徴とする請求項（１）、（２）又は（３）記載の異
物観察システム及び装置。(4) The foreign matter observation system and device according to claim (1), (2) or (3), wherein the cleaning medium is an aqueous solution containing a surfactant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16923088A JPH0219741A (en) | 1988-07-07 | 1988-07-07 | Foreign matter observing system for plastic insulated cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16923088A JPH0219741A (en) | 1988-07-07 | 1988-07-07 | Foreign matter observing system for plastic insulated cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0219741A true JPH0219741A (en) | 1990-01-23 |
Family
ID=15882641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16923088A Pending JPH0219741A (en) | 1988-07-07 | 1988-07-07 | Foreign matter observing system for plastic insulated cable |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0219741A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013143575A1 (en) * | 2012-03-27 | 2013-10-03 | Abb Technology Ltd | Method for determining an electrical property of cable insulation |
-
1988
- 1988-07-07 JP JP16923088A patent/JPH0219741A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013143575A1 (en) * | 2012-03-27 | 2013-10-03 | Abb Technology Ltd | Method for determining an electrical property of cable insulation |
| CN104220884A (en) * | 2012-03-27 | 2014-12-17 | Abb技术有限公司 | Method for determining an electrical property of cable insulation |
| US9482715B2 (en) | 2012-03-27 | 2016-11-01 | Abb Schweiz Ag | Method for determining an electrical property of cable insulation |
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