JP2655652B2 - Insulated wire - Google Patents
Insulated wireInfo
- Publication number
- JP2655652B2 JP2655652B2 JP62263305A JP26330587A JP2655652B2 JP 2655652 B2 JP2655652 B2 JP 2655652B2 JP 62263305 A JP62263305 A JP 62263305A JP 26330587 A JP26330587 A JP 26330587A JP 2655652 B2 JP2655652 B2 JP 2655652B2
- Authority
- JP
- Japan
- Prior art keywords
- bta
- insulated wire
- insulator
- benzotriazole
- rust
- 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
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 claims description 25
- 239000004698 Polyethylene Substances 0.000 claims description 11
- 239000004020 conductor Substances 0.000 claims description 11
- 239000012212 insulator Substances 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 239000012964 benzotriazole Substances 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- -1 polyethylene Polymers 0.000 claims description 5
- 229920000573 polyethylene Polymers 0.000 claims description 5
- DCKVNWZUADLDEH-UHFFFAOYSA-N sec-butyl acetate Chemical compound CCC(C)OC(C)=O DCKVNWZUADLDEH-UHFFFAOYSA-N 0.000 claims description 3
- 150000001565 benzotriazoles Chemical class 0.000 claims description 2
- 239000008188 pellet Substances 0.000 description 12
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 10
- 230000000694 effects Effects 0.000 description 5
- 238000001125 extrusion Methods 0.000 description 4
- 230000002265 prevention Effects 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 239000003112 inhibitor Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 239000000843 powder Substances 0.000 description 2
- 230000003449 preventive effect Effects 0.000 description 2
- CGKQZIULZRXRRJ-UHFFFAOYSA-N Butylone Chemical compound CCC(NC)C(=O)C1=CC=C2OCOC2=C1 CGKQZIULZRXRRJ-UHFFFAOYSA-N 0.000 description 1
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007765 extrusion coating Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Landscapes
- Organic Insulating Materials (AREA)
- Insulated Conductors (AREA)
Description
【発明の詳細な説明】 （発明の技術分野） 本発明は絶縁電線に係わり、特に導体の腐食が防止さ
れた架空絶縁電線に関する。Description: TECHNICAL FIELD [0001] The present invention relates to an insulated wire, and more particularly to an overhead insulated wire in which conductor corrosion is prevented.
（発明の技術的背景） 硬銅撚線を導体とする架空絶縁電線においては、導体
に加わる引張応力と導体腐食に起因する異常断線事故が
生じることがある。(Technical Background of the Invention) In an overhead insulated wire using a hard copper stranded wire as a conductor, an abnormal disconnection accident may occur due to tensile stress applied to the conductor and conductor corrosion.
これは、電線の端末部等からの雨水の浸入或いは大気
の汚染によって、銅導体表面に黒色の酸化銅皮膜が形成
され、それが応力側の要因によって断線につながるため
と考えられる。It is considered that this is because a black copper oxide film is formed on the copper conductor surface due to infiltration of rainwater from a terminal portion of the electric wire or the like or air pollution, which leads to disconnection due to a factor on the stress side.
そのため、このような銅導体の黒色変色や腐食を防止
するために、従来から、ポリエチレン（以下、PEと示
す。）からなる絶縁体中に防錆剤であるベンゾトリアゾ
ール（以下、BTAと示す。）を配合する方法が用いられ
ている。Therefore, in order to prevent such a copper conductor from discoloring black and corroding, benzotriazole (hereinafter, referred to as BTA) which is a rust inhibitor is conventionally provided in an insulator made of polyethylene (hereinafter, referred to as PE). ) Is used.
（背景技術の問題点） しかしながらこのようにPE絶縁体中にBTAが配合され
た絶縁電線においては、BTAのブリードアウトが速いと
いう問題があった。特に温度が高くなると、例えば60℃
×１ケ月で配合されたBTAの半分の量が絶縁体外へ出て
しまうなど、ブリードアウト速度が大きく、長期に亘っ
て防錆効果が発揮されなかった。(Problems of the Background Art) However, in the insulated wire in which BTA is blended in the PE insulator, there is a problem that the bleed out of BTA is fast. Especially when the temperature rises, for example, 60 ° C
The bleed-out speed was large, such as half the amount of BTA compounded in one month outside the insulator, and the rust prevention effect was not exhibited for a long period of time.
またこのようなBTAのブリードアウトは、これを配合
したPE組成物をペレット状態で保管しておいた場合に顕
著にあらわれる。そのため、長期間保管後のペレットを
使用して押出被覆を行った場合には、押出機の吐出量に
変動が生じ、長さ方向に均一な外径を有する絶縁電線が
得られないという問題があった。In addition, such bleed-out of BTA becomes remarkable when the PE composition containing the BTA is stored in a pellet state. Therefore, when extrusion coating is performed using the pellets stored for a long time, the discharge amount of the extruder fluctuates, and an insulated wire having a uniform outer diameter in the length direction cannot be obtained. there were.
（発明の目的） 本発明はこれらの問題を解決するためになされたもの
で、防錆剤のブリードアウトが少なく、長期に亘って導
体の腐食等が防止される絶縁電線を提供することを目的
とする。(Objects of the Invention) The present invention has been made to solve these problems, and an object of the present invention is to provide an insulated wire in which bleed out of a rust preventive agent is small and corrosion of a conductor is prevented for a long period of time. And
（発明の概要） 本発明の絶縁電線は、撚線銅導体上に、ポリエチレン
に、ベンゾトリアゾールブチルエステルを主体とするベ
ンゾトリアゾール誘導体とベンゾトリアゾールとを合わ
せてポリエチレン組成物全体の0.1〜４重量％の割合で
配合してなる組成物を絶縁体として被覆してなることを
特徴としている。(Summary of the Invention) The insulated wire of the present invention is obtained by combining a benzotriazole derivative mainly composed of benzotriazole butyl ester and benzotriazole with polyethylene on a stranded copper conductor in an amount of 0.1 to 4% by weight of the whole polyethylene composition. The composition is characterized in that the composition is blended at a ratio of 2 and coated as an insulator.
本発明においてBTA誘導体としては、ベンゾトリアゾ
ールブチルエステル、等があり、これらの誘導体の１種
または２種以上をBTAとともに使用する。In the present invention, examples of the BTA derivative include benzotriazole butyl ester, and one or more of these derivatives are used together with BTA.
また本発明においてBTAと前記BTA誘導体の配合量は、
以下に示す理由で、合わせてPE組成物全体の0.1〜４重
量％（以下、単に％と示す。）の割合とする。In the present invention, the compounding amount of BTA and the BTA derivative is
For the following reasons, the total amount is set to 0.1 to 4% by weight (hereinafter, simply referred to as%) of the whole PE composition.
すなわち、BTAとBTA誘導体の配合量の合計が、組成物
全体の0.1％未満では防錆効果がなく、反対にこれらの
配合量の合計が４％を越えた場合には、防錆効果のそれ
以上の向上が見られないばかりでなく、かえって電気的
機械的特性が低下してしまうためである。That is, when the total amount of BTA and the BTA derivative is less than 0.1% of the total composition, there is no rust-preventive effect. Conversely, when the total amount of these compounds exceeds 4%, that of the rust-preventive effect is not obtained. Not only is the above improvement not seen, but rather, the electrical and mechanical properties are degraded.
（発明の実施例） 以下、本発明の実施例について記載する。(Examples of the Invention) Hereinafter, examples of the present invention will be described.
実施例１〜４ UBEC840（宇部興産（株）社製PE樹脂の商品名）に、B
TA粉末とBTA誘導体とを次表に示す割合でそれぞれ配合
し、ペレットを作製した。Examples 1 to 4 UBEC840 (trade name of PE resin manufactured by Ube Industries, Ltd.)
The TA powder and the BTA derivative were blended at the ratios shown in the following table to prepare pellets.
これらのペレットにおける防錆剤（BTAとBTA誘導体）
のブリードアウト性を以下のようにして測定した。Rust inhibitors (BTA and BTA derivatives) in these pellets
Was measured as follows.
すなわちペレットを60℃で放置し、１週間および１ケ
月後のペレット中に残存する防錆剤の量（割合）を、液
体クロマトグラフを用いて測定した。That is, the pellet was left at 60 ° C., and the amount (ratio) of the rust inhibitor remaining in the pellet after one week and one month was measured using a liquid chromatograph.
また、これらのペレットを押出機に供給し、11本の硬
銅素線を撚合わせてなる60mm2撚線導体上に、2mmの厚さ
に押出被覆した。Further, these pellets were supplied to an extruder, and extrusion-coated to a thickness of 2 mm on a 60 mm 2- stranded wire conductor obtained by twisting 11 hard copper strands.
また比較のために、UBEC840だけで或いはBTA粉末のみ
を表に示す割合で配合したペレットを作製し、これらの
ペレットにおけるBTAのブリードアウト性を、実施例と
同様にして測定した。測定結果を実施例のペレットの測
定結果とともに表に示す。For comparison, pellets containing only UBEC840 or only BTA powder at the ratios shown in the table were prepared, and the bleed-out property of BTA in these pellets was measured in the same manner as in the examples. The measurement results are shown in the table together with the measurement results of the pellets of the examples.
さらに、これらのペレットを用い、実施例と同じ撚線
導体上に絶縁体を押出被覆した。Further, using these pellets, an insulator was extrusion-coated on the same stranded conductor as in the example.
次いで前述の実施例と比較例で得られた絶縁電線につ
いて、以下に示す方法で絶縁体の密着力および防錆性能
をそれぞれ測定した。Next, with respect to the insulated wires obtained in the above-mentioned Examples and Comparative Examples, the adhesion and the rust prevention performance of the insulator were measured by the following methods.
すなわち密着力は、試料電線の絶縁体に荷重を加え、
絶縁体が5mmずれたときの荷重の大きさを求めることに
よって測定した。That is, the adhesion force applies a load to the insulator of the sample wire,
It was measured by determining the magnitude of the load when the insulator was displaced by 5 mm.
また、長さ30cmの電線試料をアンモニウムイオンを10
0ppmの割合で含む溶液中に垂直に立て、これに乾湿サイ
クルを加えた後、さらにこれを恒温槽に入れて60℃×8H
次いで室温×16Hのヒートサイクルを８週間加えてか
ら、素線上に生じた錆膜の厚さを測定することにより、
防錆性能を求めた。In addition, a 30-cm long wire sample was
Stand vertically in a solution containing 0 ppm, add a dry-wet cycle to it, and then put it in a thermostat at 60 ° C x 8H
Then, after applying a heat cycle of room temperature x 16H for 8 weeks, by measuring the thickness of the rust film formed on the strand,
Rust prevention performance was required.
これらの測定結果をそれぞれ次方下欄に示す。 These measurement results are shown in the lower columns below.
（発明の効果） 以上の説明から明らかなように、本発明の絶縁電線に
おいては、絶縁体を構成するPEにBTAとBTA誘導体がとも
に配合されているので、これらの防錆剤のブリードアウ
トが少なく、高い防錆効果が発揮される。また、特に絶
縁体を被覆する前のペレットの状態でのブリードアウト
が少ないので、押出作業性が良く、押出外径の変動が生
じにくいという利点がある。 (Effects of the Invention) As is clear from the above description, in the insulated wire of the present invention, since BTA and a BTA derivative are blended together with PE constituting the insulator, the bleed out of these rust preventives is reduced. Low, high rust prevention effect is exhibited. In addition, since there is little bleed-out particularly in the state of pellets before coating with an insulator, there is an advantage that extrusion workability is good and fluctuations in the extrusion outer diameter are less likely to occur.
Claims (1)
トリアゾールブチルエステルを主体とするベンゾトリア
ゾール誘導体とベンゾトリアゾールとを合わせてポリエ
チレン組成物全体の0.1〜４重量％の割合で配合してな
る組成物を絶縁体として被覆してなることを特徴とする
絶縁電線。A benzotriazole derivative composed mainly of benzotriazole butyl ester and benzotriazole are combined with polyethylene on a stranded copper conductor in a proportion of 0.1 to 4% by weight of the whole polyethylene composition. An insulated wire characterized by being coated with a composition as an insulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62263305A JP2655652B2 (en) | 1987-10-19 | 1987-10-19 | Insulated wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62263305A JP2655652B2 (en) | 1987-10-19 | 1987-10-19 | Insulated wire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01105405A JPH01105405A (en) | 1989-04-21 |
| JP2655652B2 true JP2655652B2 (en) | 1997-09-24 |
Family
ID=17387631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62263305A Expired - Lifetime JP2655652B2 (en) | 1987-10-19 | 1987-10-19 | Insulated wire |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2655652B2 (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5322677B2 (en) * | 1972-07-20 | 1978-07-10 | ||
| JPS55178907U (en) * | 1979-06-08 | 1980-12-22 | ||
| JPH06101258B2 (en) * | 1986-02-27 | 1994-12-12 | 昭和電線電纜株式会社 | Method for manufacturing stranded conductor |
-
1987
- 1987-10-19 JP JP62263305A patent/JP2655652B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01105405A (en) | 1989-04-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313111 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| EXPY | Cancellation because of completion of term | ||
| FPAY | Renewal fee payment (event date is renewal date of database) |
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