JPH10199353A - Tracking resistance insulation tape - Google Patents

Tracking resistance insulation tape

Info

Publication number
JPH10199353A
JPH10199353A JP1773097A JP1773097A JPH10199353A JP H10199353 A JPH10199353 A JP H10199353A JP 1773097 A JP1773097 A JP 1773097A JP 1773097 A JP1773097 A JP 1773097A JP H10199353 A JPH10199353 A JP H10199353A
Authority
JP
Japan
Prior art keywords
tracking
compound
adhesive layer
added
base material
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.)
Withdrawn
Application number
JP1773097A
Other languages
Japanese (ja)
Inventor
Akio Rinka
彰生 林下
Keiji Yoshitomi
慶司 吉富
Hiroe Aida
裕恵 会田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujikura Ltd
Fujikura Composites Inc
Original Assignee
Fujikura Rubber Ltd
Fujikura Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fujikura Rubber Ltd, Fujikura Ltd filed Critical Fujikura Rubber Ltd
Priority to JP1773097A priority Critical patent/JPH10199353A/en
Publication of JPH10199353A publication Critical patent/JPH10199353A/en
Withdrawn legal-status Critical Current

Links

Landscapes

  • Laminated Bodies (AREA)
  • Insulating Bodies (AREA)

Abstract

PROBLEM TO BE SOLVED: To make tracking hardly generated in a salt damage area by having a crystalline water in a compound molecule in a tape base material and/or adhesive layer and mixing a tracking compound with its small moisture absorption, and discharging and cooling the crystalline water in the case of discharge. SOLUTION: As a tape base material, for example, a low-density polyethylene film or the like is employed, and as an adhesive layer, for example, a butyl rubber mixture or the like is employed. A tracking resistance compound having its small moisture absorption and having crystalline water in the compound molecule is added to such a tape base material and/or adhesive layer. In this case, as a tracking resistance compound, for example, one or more kinds of aluminum hydride and magnesium hydride having crystalline water, for example, is employed, and the adding quantity is 5 to 50wt. part with respect to a matrix 100wt. part when it is added to the tape base material and 5 to 30wt. part with respect to a matrix 100wt. part when it is added to the adhesive layer.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【産業上の利用分野】本発明は耐トラッキング性絶縁テ
ープ、さらに詳細には海岸地方など塩害の生じる地方に
おける高圧配電線路などに使用される耐トラッキング性
絶縁テープに関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tracking-resistant insulating tape, and more particularly, to a tracking-resistant insulating tape used for a high-voltage distribution line in a region where salt damage occurs, such as a coastal region.

【0002】[0002]

【従来技術及び問題点】絶縁カバーの固定、導体の保護
などの高圧配電線路に用いられる絶縁テープとしては、
基本的に絶縁性のあるテープ基材に、前記テープを捲回
貼着するための粘着層を設けた構造になっている。この
ような絶縁テープは、一般的な条件においては良好な耐
久性を有しており問題を生じる可能性は低い。しかしな
がら、海岸地方など塩害の生じるような条件下において
は、塩(電解質)が表面に付着すること、配電線路に高
圧電流が流れること、によって放電が生じ、絶縁テープ
が炭化して導通するような事態を生じる恐れがある(ト
ラッキング)。
2. Description of the Related Art As an insulating tape used for a high-voltage distribution line such as fixing an insulating cover and protecting a conductor,
Basically, it has a structure in which an adhesive layer for winding and adhering the tape is provided on an insulating tape base material. Such an insulating tape has good durability under general conditions and is unlikely to cause a problem. However, under conditions that cause salt damage, such as in coastal areas, discharge occurs due to salt (electrolyte) adhering to the surface and high-voltage current flowing through the distribution line, causing the insulating tape to become carbonized and conducting. Things can happen (tracking).

【0003】本発明は上述の問題点に鑑みなされたもの
であり、上述のような塩害地方においてもトラッキング
を生じにくい耐トラッキング性絶縁テープを提供するこ
とを目的とする。
The present invention has been made in view of the above problems, and has as its object to provide a tracking-resistant insulating tape which does not easily cause tracking even in the above-mentioned salt-affected areas.

【0004】[0004]

【問題点を解決するための手段】上述の問題点を解決す
るため、本発明による耐トラッキング性絶縁テープは、
テープ基材と粘着層からなる耐トラッキング性絶縁テー
プであって、前記テープ基材および/又は粘着層に、化
合物分子中に結晶水を有し、かつ吸湿性の小さな耐トラ
ッキング性化合物を混入したことを特徴とする。
Means for Solving the Problems In order to solve the above problems, the tracking-resistant insulating tape according to the present invention comprises:
A tracking-resistant insulating tape comprising a tape substrate and an adhesive layer, wherein the tape substrate and / or the adhesive layer have water of crystallization in compound molecules, and a tracking-resistant compound having a small hygroscopic property mixed therein. It is characterized by the following.

【0005】本発明によれば、絶縁テープのテープ基材
および/又は粘着層に吸湿性が小さく、かつ結晶水を化
合物分子中に有する耐トラッキング性化合物を添加した
ため、放電が生じた場合に前記結晶水が放出されて冷却
することによって絶縁テープの炭化を最小に抑制でき
る。このため、耐トラッキング性が著しく改良されると
いう利点がある。
According to the present invention, a tracking-resistant compound having low hygroscopicity and having crystal water in the compound molecule is added to the tape base and / or the adhesive layer of the insulating tape. The crystallization water is released and cooled, thereby minimizing the carbonization of the insulating tape. Therefore, there is an advantage that the tracking resistance is significantly improved.

【0006】本発明をさらに詳しく説明すると、本発明
によるテープ基材は、従来この種の絶縁テープとして使
用されるものを有効に使用することができる。たとえ
ば、低密度ポリエチレンフィルム等であることができ
る。
The present invention will be described in further detail. As the tape base material according to the present invention, those conventionally used as this kind of insulating tape can be effectively used. For example, it can be a low density polyethylene film or the like.

【0007】また、本発明における粘着層も、従来この
種の絶縁テープとして使用されるものを有効に使用する
ことができ、たとえば、ブチルゴム混和物等を使用する
ことができる。
Further, as the adhesive layer in the present invention, those conventionally used as this kind of insulating tape can be effectively used, and for example, butyl rubber admixture or the like can be used.

【0008】本発明によれば、このようなテープ基材お
よび/又は粘着層に吸湿性が小さく、かつ化合物分子中
に結晶水を有する耐トラッキング性化合物を添加する。
このような耐トラッキング性化合物は、吸湿性が小さい
のがよいが、吸湿性が大きな化合物であると、絶縁テー
プ内に水を吸収して導電線路に短絡などを生じる恐れが
あるからである。このような耐トラッキング性化合物と
しては、例えば結晶水を有する水酸化アルミニウム、水
酸化マグネシウムの一種以上を例として挙げることがで
きる。
According to the present invention, a tracking resistant compound having low hygroscopicity and having crystal water in the compound molecule is added to such a tape base material and / or adhesive layer.
Such a tracking-resistant compound preferably has a small hygroscopic property. However, if the compound has a high hygroscopic property, water may be absorbed into the insulating tape and a short circuit may occur in the conductive line. Examples of such a tracking resistant compound include, for example, one or more of aluminum hydroxide and magnesium hydroxide having water of crystallization.

【0009】上述の耐トラッキング性化合物の添加量
は、テープ基材に添加する場合、マトリックス100重
量部に対し5〜50重量部であるのが好ましい。5重量
部未満であると、耐トラッキング性の改良効果が十分で
はなく、一方、50重量部を超えるとテープ基材の伸び
が劣悪になって絶縁テープとして使用が困難になる。
When the tracking resistant compound is added to the tape base material, the amount is preferably 5 to 50 parts by weight based on 100 parts by weight of the matrix. If the amount is less than 5 parts by weight, the effect of improving the tracking resistance is not sufficient. On the other hand, if the amount exceeds 50 parts by weight, the elongation of the tape base material becomes poor, making it difficult to use as an insulating tape.

【0010】また、粘着層に添加する場合には、マトリ
ックス100重量部に対し、5〜30重量部であるのが
よい。5重量部未満であると、耐トラッキング性の改良
効果が十分ではなく、一方30重量部を超えると、粘着
性が劣ることになるからである。
When added to the adhesive layer, the amount is preferably 5 to 30 parts by weight based on 100 parts by weight of the matrix. If the amount is less than 5 parts by weight, the effect of improving the tracking resistance is not sufficient, while if it exceeds 30 parts by weight, the adhesiveness becomes poor.

【0011】本発明によれば、上述の耐トラッキング化
合物のほか、通常添加される添加剤、例えばカーボンブ
ラックなどを添加することが可能である。
According to the present invention, in addition to the above-mentioned tracking resistant compound, it is possible to add an additive which is usually added, for example, carbon black.

【0012】[0012]

【実施例】厚さ0.1mmの低密度ポリエチレンフィル
ム(テープ基材)および厚さ0.4mmのブチルゴム混
和物よりなる粘着層を設けた絶縁テープを作製した。こ
のとき、基材フィルムおよび/又は粘着層に水酸化アル
ミニウムをそれぞれ5〜50重量部、5〜20重量部添
加して耐トラッキング性を調べた。対象として、前記基
材フィルムになんら添加していない無添加のもの、難燃
剤である臭素系難燃剤を添加したものの耐トラッキング
性も同時に試験した。
EXAMPLE An insulating tape provided with an adhesive layer comprising a low-density polyethylene film (tape substrate) having a thickness of 0.1 mm and a butyl rubber mixture having a thickness of 0.4 mm was prepared. At this time, 5 to 50 parts by weight and 5 to 20 parts by weight of aluminum hydroxide were added to the base film and / or the adhesive layer, respectively, and the tracking resistance was examined. As an object, the tracking resistance of the non-added and non-added brominated flame retardants, which were not added to the substrate film, was also tested.

【0013】耐トラッキング性の試験は、150mm以
上の試料に2つの導体を巻き付けることによって二つの
電極を100mm間隔で形成し、前述の電極間に4kV
の交流電圧を加えることによって行う。このとき、前記
試料は試験液(水1リットルに塩化ナトリウム2g、ポ
リオキシエチレン、ニルフェノールエーテル(7.7モ
ル)1mlを加え、導電度を約300μS/cmとした
もの)を噴霧速度3m/s(試料の位置において)、噴
霧量0.5mm/分、試料と噴霧ノズルの間隔を500
mmとして、10秒噴霧、20秒休止を1回として数え
て電極間が炭化して導通するまでの回数を測定すること
によって耐トラッキング性を調べた(JISC300
1)。
In the tracking resistance test, two electrodes are formed at an interval of 100 mm by winding two conductors around a sample of 150 mm or more, and 4 kV is applied between the electrodes.
Is performed by applying an AC voltage. At this time, the sample was sprayed with a test liquid (2 g of sodium chloride, 1 ml of polyoxyethylene and nilphenol ether (7.7 mol) in 1 liter of water, and the conductivity was adjusted to about 300 μS / cm) at a spray rate of 3 m / m. s (at sample position), spray rate 0.5 mm / min, spacing between sample and spray nozzle 500
The tracking resistance was examined by measuring the number of times until the carbonization and conduction between the electrodes, counting spraying for 10 seconds and resting for 20 seconds as one time as mm (JISC300).
1).

【0014】結果を表1a、表1bに示す。The results are shown in Tables 1a and 1b.

【0015】[0015]

【表1a】 [Table 1a]

【0016】[0016]

【表1b】 [Table 1b]

【0017】上述の表1a、表1bより明らかなよう
に、本発明による耐トラッキング性絶縁テープは、無添
加、臭素系難燃剤を添加したものに比較して耐トラッキ
ング性が著しく向上していることが明らかになった。
As is clear from the above Tables 1a and 1b, the tracking resistant insulating tape of the present invention has significantly improved tracking resistance as compared with the non-added, non-added brominated flame retardant. It became clear.

【0018】[0018]

【発明の効果】以上説明したように本発明による耐トラ
ッキング性絶縁テープによれば、絶縁テープのテープ基
材および/又は粘着層に吸湿性が小さく、かつ結晶水を
化合物分子中に有する耐トラッキング性化合物を添加し
たため、放電が生じた場合に前記結晶水が放出されて冷
却することによって絶縁テープの炭化を最小に抑制でき
る。また、分解した有機材料の一部が水酸化物と反応
し、CO2となるため、カーボンのトラックが生じ難い
公知の特性を利用している。このため、耐トラッキング
性が著しく改良されるという利点がある。
As described above, according to the tracking resistant insulating tape of the present invention, the tape base and / or the adhesive layer of the insulating tape have low hygroscopicity and have tracking water resistance having crystal water in the compound molecule. Since the water-soluble compound is added, when the discharge occurs, the water of crystallization is released and cooled, thereby minimizing the carbonization of the insulating tape. Further, since a part of the decomposed organic material reacts with the hydroxide to form CO 2 , a known property that carbon tracks are hardly generated is used. Therefore, there is an advantage that the tracking resistance is significantly improved.

───────────────────────────────────────────────────── フロントページの続き (72)発明者 会田 裕恵 東京都江東区木場一丁目5番1号 株式会 社フジクラ本社内 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Hiroe Aida 1-5-1, Kiba, Koto-ku, Tokyo Fujikura Head Office

Claims (4)

【特許請求の範囲】[Claims] 【請求項1】テープ基材と粘着層からなる耐トラッキン
グ性絶縁テープであって、前記テープ基材および/又は
粘着層に、化合物分子中に結晶水を有し、かつ吸湿性の
小さな耐トラッキング性化合物を混入したことを特徴と
する耐トラッキング性絶縁テープ。
1. A tracking-resistant insulating tape comprising a tape base material and an adhesive layer, wherein the tape base material and / or the adhesive layer have water of crystallization in a compound molecule and have low hygroscopicity. A tracking-resistant insulating tape characterized by incorporating a reactive compound.
【請求項2】前記耐トラッキング性化合物は結晶水を有
する水酸化アルミニウム、水酸化マグネシウムの一種以
上であることを特徴とする請求項1記載の耐トラッキン
グ性絶縁テープ。
2. The tracking-resistant insulating tape according to claim 1, wherein the tracking-resistant compound is at least one of aluminum hydroxide and magnesium hydroxide having water of crystallization.
【請求項3】テープ基材に、マトリックス100重量部
に対し5〜50重量部の耐トラッキング性化合物を添加
することを特徴とする請求項1又は2記載の耐トラッキ
ング性絶縁テープ。
3. The tracking-resistant insulating tape according to claim 1, wherein a tracking-resistant compound is added to the tape substrate in an amount of 5 to 50 parts by weight based on 100 parts by weight of the matrix.
【請求項4】粘着層に、マトリックス100重量部に対
し5〜30重量部の耐トラッキング性化合物を添加する
ことを特徴とする請求項1から3記載のいずれかの耐ト
ラッキング性絶縁テープ。
4. The tracking-resistant insulating tape according to claim 1, wherein 5 to 30 parts by weight of a tracking-resistant compound is added to 100 parts by weight of the matrix to the adhesive layer.
JP1773097A 1997-01-17 1997-01-17 Tracking resistance insulation tape Withdrawn JPH10199353A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1773097A JPH10199353A (en) 1997-01-17 1997-01-17 Tracking resistance insulation tape

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1773097A JPH10199353A (en) 1997-01-17 1997-01-17 Tracking resistance insulation tape

Publications (1)

Publication Number Publication Date
JPH10199353A true JPH10199353A (en) 1998-07-31

Family

ID=11951874

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1773097A Withdrawn JPH10199353A (en) 1997-01-17 1997-01-17 Tracking resistance insulation tape

Country Status (1)

Country Link
JP (1) JPH10199353A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016194094A1 (en) * 2015-05-29 2016-12-08 リンテック株式会社 Adhesive sheet

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016194094A1 (en) * 2015-05-29 2016-12-08 リンテック株式会社 Adhesive sheet
JPWO2016194094A1 (en) * 2015-05-29 2017-06-15 リンテック株式会社 Adhesive sheet
US10633562B2 (en) 2015-05-29 2020-04-28 Lintec Corporation Pressure sensitive adhesive sheet

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Legal Events

Date Code Title Description
A300 Withdrawal of application because of no request for examination

Free format text: JAPANESE INTERMEDIATE CODE: A300

Effective date: 20040406