JPH06111629A - Electrical insulating composition and electric wire and cable - Google Patents
Electrical insulating composition and electric wire and cableInfo
- Publication number
- JPH06111629A JPH06111629A JP4261718A JP26171892A JPH06111629A JP H06111629 A JPH06111629 A JP H06111629A JP 4261718 A JP4261718 A JP 4261718A JP 26171892 A JP26171892 A JP 26171892A JP H06111629 A JPH06111629 A JP H06111629A
- Authority
- JP
- Japan
- Prior art keywords
- weight
- polyethylene
- parts
- cable
- electric wire
- 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.)
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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
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は電力ケーブル等の架橋ポ
リエチレン絶縁体内に発生する水トリー、特にボウタイ
トリーの発生を大巾に抑止することができる電気絶縁組
成物及び電線・ケーブルに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric insulating composition and an electric wire / cable capable of greatly suppressing the generation of water trees, particularly bow tie tree, generated in a crosslinked polyethylene insulator such as a power cable. .
【０００２】[0002]
【従来の技術】架橋ポリエチレンは高度の電気絶縁性を
有することから、電線・ケーブル用電気絶縁体として多
く使用されている。2. Description of the Related Art Crosslinked polyethylene has a high degree of electrical insulation and is therefore widely used as an electrical insulator for electric wires and cables.
【０００３】しかし、この架橋ポリエチレン絶縁電線・
ケーブルは湿潤な環境下で使用すると、水トリーと呼ば
れる電気化学的劣化が発生し、電気絶縁性能が著しく低
下するために、その発生の抑止については架橋ポリエチ
レン絶縁電線・ケーブルが本格的な実用化を見るに至っ
て以来、長年の課題とされていた。However, this crosslinked polyethylene insulated wire
When the cable is used in a humid environment, electrochemical deterioration called water tree occurs and the electrical insulation performance is significantly reduced.To prevent this, cross-linked polyethylene insulated wires and cables are put into practical use. Has been a problem for many years since I came to see.
【０００４】この水トリーは、数多くの基礎的あるいは
実課電での研究の結果、次のような機構により発生する
と考えられている。すなわち、架橋ポリエチレン絶縁体
中のボイド、異物、並びに絶縁体と半導電層界面の遺物
や突起等に水が凝集すると、非極性の架橋ポリエチレン
は水との親和性が低いため、凝集した水の圧力上昇によ
ってその周辺に力学的ひずみを生じ、水トリーの発生に
至る。As a result of many studies on basic or actual charging, this water tree is considered to be generated by the following mechanism. That is, when water is aggregated in voids, foreign matters in the crosslinked polyethylene insulator, and remnants and protrusions at the interface between the insulator and the semiconductive layer, the nonpolar crosslinked polyethylene has a low affinity with water, and thus the aggregated water The increase in pressure causes mechanical strain around it, leading to the generation of water trees.
【０００５】そこで、水トリーの発生を防止するため
に、レジンの細心にわたる品質管理や製造ラインのクリ
ーンルーム化等の電線・ケーブル清藏技術の改善、或い
は絶縁体中への極性基の導入による親水性の向上など手
段が講じられ、水トリーの発生は着実に抑止されつつあ
る。Therefore, in order to prevent the generation of water trees, meticulous quality control of the resin, improvement of the electric wire / cable scavenging technology such as making the production line into a clean room, or introduction of a polar group into the insulator makes it hydrophilic. By taking measures such as improving the nature, the occurrence of water trees is being steadily suppressed.
【０００６】[0006]
【発明が解決しようとする課題】しかしながら、上記の
各方面にわたる努力が重ねられているにもかかわらず、
今日の技術では水トリーの発生を皆無にできる段階まで
には至っていない。このため、鋭意その発生の抑止対策
についての検討が進められてるのが実状である。そこ
で、本発明は上述した問題点を有効に解決するために案
出されたものであり、その目的は絶縁体中にボイド、異
物並びに絶縁体と半導電層との界面における不整といっ
た欠陥が不可避的に存在していても、水トリーの発生を
大巾に抑止できる新規な電気絶縁組成物及び電線・ケー
ブルを提供するものである。However, in spite of the efforts in the above various fields,
Today's technology has not reached the stage where the generation of water trees can be completely eliminated. For this reason, the fact is that investigations are being made on measures to prevent such occurrences. Therefore, the present invention has been devised in order to effectively solve the above-mentioned problems, and its purpose is to avoid defects such as voids, foreign matters, and irregularities at the interface between the insulator and the semiconductive layer in the insulator. The present invention provides a novel electrical insulating composition and a wire / cable capable of greatly suppressing the generation of a water tree even if it is present.
【０００７】[0007]
【課題を解決するための手段】上記課題を解決するため
に、本発明は、ポリエチレンまたはエチレン共重合体、
あるいはこれらの混合物１００重量部に対し、式 （ｎ≠０；Ｒ1 ，Ｒ2 ，Ｒ3 ，Ｒ4 は水素またはフェニ
ル基並びに置換フェニル基を除く炭化水素基の中から選
ばれる）を有する合計炭素数４個以上のアミンを０．０
０５〜１．０重量部添加してなる電気絶縁組成物及びこ
の組成物を被覆し架橋した電線・ケーブルを提供するも
のである。また、本発明は、ポリエチレンまたはエチレ
ン共重合体、あるいはポリエチレンとエチレンの混合物
９９．９〜７０重量部に対し、窒素含有量が０．０１〜
１．０重量％のアミド化ポリエチレンを０．１〜３０重
量部混和したブレンド物１００重量部中に、上記アミン
を０．００５〜１．０重量部添加してなる電気絶縁組成
物及びこの組成物を被覆し架橋した電線・ケーブルを提
供するものである。In order to solve the above-mentioned problems, the present invention provides a polyethylene or ethylene copolymer,
Alternatively, for 100 parts by weight of these mixtures, the formula 0.0 with an amine having a total of 4 or more carbon atoms (n ≠ 0; R 1 , R 2 , R 3 and R 4 are selected from hydrogen or a hydrocarbon group excluding a substituted phenyl group).
The present invention provides an electrical insulating composition added by 05 to 1.0 part by weight, and an electric wire / cable coated with the composition and crosslinked. Further, the present invention has a nitrogen content of 0.01 to 70 parts by weight with respect to 99.9 to 70 parts by weight of a polyethylene or ethylene copolymer or a mixture of polyethylene and ethylene.
Electrically insulating composition obtained by adding 0.005 to 1.0 part by weight of the above amine to 100 parts by weight of a blend obtained by mixing 0.1 to 30 parts by weight of amidated polyethylene of 1.0% by weight, and the composition An object of the present invention is to provide an electric wire / cable that covers and crosslinks an object.
【０００８】本発明の電気絶縁組成物のアミンのうち、
Ｒ1 ，Ｒ2 ，Ｒ3 ，Ｒ4 にフェニル基並びに置換フェニ
ル基を導入した化合物を除外したのは、これらの化合物
はアミノ基の効果が弱く、十分なボウタイトリー発生抑
止効果が得られないからである。また、合計炭素数を４
個以上としたのは、４個未満では沸点が低くベースレジ
ンとの混練の際に揮散してしまうからである。なお、総
炭素数の上限は特に限定しないが、３０個程度までが望
ましい。さらに、このアミンの添加量を０．００５重量
部〜０．１重量部としたのは、これらの添加量が０．０
０５重量部未満では、目的とするボウタイトリー発生抑
止効果が不十分であり、１．０重量部を越えると相溶性
の上限から絶縁体表面に析出し（この現象をブルームと
いう）、製品の品質を低下させてしまうからである。Of the amines of the electrical insulation composition of the present invention,
Compounds in which phenyl group and substituted phenyl group were introduced into R 1 , R 2 , R 3 and R 4 were excluded, because these compounds have a weak effect of amino group, and sufficient effect of suppressing boutite trie cannot be obtained. Because. Also, the total carbon number is 4
The reason for setting the number to be 4 or more is that if the number is less than 4, the boiling point will be low and the compound will be vaporized during kneading with the base resin. The upper limit of the total carbon number is not particularly limited, but is preferably about 30. Further, the amount of addition of this amine is set to 0.005 to 0.1 parts by weight because the addition amount of these is 0.0
If the amount is less than 05 parts by weight, the desired effect of suppressing the occurrence of boutite trie is insufficient. Because it lowers.
【０００９】また、上記アミンの具体例として、ジエチ
レントリアミン、トリエチレンテタラミン、テトラエチ
レンペンタミン、ペンタエチレンヘキサミン等が挙げら
れ、また、これらの化合物を数種組み合わせて使用して
も良い。Further, specific examples of the above amines include diethylenetriamine, triethylenetetamine, tetraethylenepentamine, pentaethylenehexamine, and the like, and these compounds may be used in combination of several kinds.
【００１０】ベースレンジとしては、低密度ポリエチレ
ン、中密度ポリエチレン及びエチレン−プロピレン共重
合体、エチレン−エチレンアクリレート共重合体、エチ
レン−酢酸ビニル共重合体等エチレンを過半に含むポリ
オレフィンが該当する。これらのうち１種、または２種
以上を組み合わせて用いても良い。Suitable base ranges include low density polyethylene, medium density polyethylene and polyolefins containing ethylene in the majority, such as ethylene-propylene copolymers, ethylene-ethylene acrylate copolymers and ethylene-vinyl acetate copolymers. Of these, one kind may be used, or two or more kinds may be used in combination.
【００１１】架橋剤としては、通常使用されるジクミル
パーオキサイド、１，３−ビス−（ターシャリーブチル
パーオキシ−イソプロピル）ベンゼン、２，５−ジメチ
ル−２，５−ジ−（ターシャリーブチルパーオキシ）−
ヘキシン−３等が挙げられる。As the cross-linking agent, dicumyl peroxide, 1,3-bis- (tert-butylperoxy-isopropyl) benzene and 2,5-dimethyl-2,5-di- (tert-butyl) which are usually used are used. Peroxy)-
Hexin-3 and the like can be mentioned.
【００１２】架橋法としては、有機過酸化物による化学
架橋の他に、シラン水架橋や電離性放射線によるものが
ある。その他必要によっては、滑剤、着色剤、充填剤、
架橋促進剤等を添加することは一向に差し支えない。The cross-linking method includes chemical cross-linking with an organic peroxide, silane water cross-linking and ionizing radiation. If necessary, lubricant, colorant, filler,
There is no problem in adding a crosslinking accelerator or the like.
【００１３】尚、ボウタイトリーに及ぼす水分の影響は
極めて大きく、気中で課電したケーブルや金属シース等
で遮水したケーブルにもボウタイトリーが見出だされ
る。これらは外部から浸透した水分によるものではな
く、ケーブル製造時に架橋ポリエチレンの内部に含まれ
る微量の水分によるものであると考えられる。このよう
なボウタイトリーに対しても、本発明に係る絶縁体が有
効なトリー抑止効果を発揮することはいうまでもない。The influence of water on the bow tie tree is extremely large, and the vault tie tree is also found in a cable that is electrically charged in the air or a cable that is shielded by a metal sheath. It is considered that these are not due to water permeating from the outside, but due to a small amount of water contained inside the cross-linked polyethylene during cable production. It is needless to say that the insulator according to the present invention exerts an effective tree suppressing effect also on such a bowtie tree.
【００１４】また、本発明で使用するアミド化ポリエチ
エンとは、次の構造を有するものである。The amidated polyethylene used in the present invention has the following structure.
【００１５】[0015]
【化１】 [Chemical 1]
【００１６】ここで、上記ポリエチレンのブレンド量お
よび窒素含有量を規定したのは規定量未満では目的とす
るボウタイトリー発生抑止効果が不十分であり、規定量
を越えると絶縁体の誘電正接が高くなり、製品の性能を
低下させてしまうからである。Here, the blending amount and nitrogen content of the above-mentioned polyethylene are regulated when the amount is less than the prescribed amount, the desired effect of suppressing the occurrence of boutite trie is insufficient, and when the amount exceeds the prescribed amount, the dielectric loss tangent of the insulator is high. This will reduce the performance of the product.
【００１７】[0017]
【作用】本発明における電気絶縁組成物は上述したよう
な構成であるため、絶縁体中のボイドや異物、並びに絶
縁体と半導電層界面の不整といった欠陥が存在していた
としてもボウタイトリーの発生を十分抑止することがで
き、かつブルームが生じない。従って、この電気絶縁組
成物を絶縁体として用いた電線・ケーブルは電気的特性
や耐久性等が大巾に改善され、信頼性が向上する。Since the electrical insulating composition of the present invention has the above-mentioned constitution, even if there are defects such as voids and foreign matters in the insulator, and irregularities at the interface between the insulator and the semiconductive layer, the voltite-free Generation can be sufficiently suppressed, and bloom does not occur. Therefore, the electric characteristics and durability of the electric wire / cable using the electric insulating composition as an insulator are greatly improved, and the reliability is improved.
【００１８】[0018]
【実施例】以下、本発明の実施例を詳述する。EXAMPLES Examples of the present invention will be described in detail below.
【００１９】まず、表１に示す配合成分からなる各種組
成物を１２０℃に加熱した熱ロールによって混練し、シ
ート状としたものをペレタイザを用いてペレット化し、
これを図１に示すように、外径３ｍｍの導体１上に、ポ
リエチレン径内部半導電層２及び外部半導電層４の厚さ
が０．５ｍｍ、絶縁層３の厚さが２ｍｍとなるように同
時押出法により押出被覆した。続いて加熱媒体として窒
素ガスを用いた乾式架橋法により、架橋管内で連続架橋
を行った後、加圧冷却して複数の電線・ケーブルを作製
し、これについて、ボウタイトリー発生数、ブルームの
有無についてそれぞれ評価した。First, various compositions comprising the compounding ingredients shown in Table 1 were kneaded by a hot roll heated to 120 ° C. and formed into a sheet, which was pelletized using a pelletizer.
As shown in FIG. 1, on the conductor 1 having an outer diameter of 3 mm, the inner diameter of the polyethylene semiconductive layer 2 and the outer semiconductive layer 4 is 0.5 mm, and the thickness of the insulating layer 3 is 2 mm. Was extrusion coated by the coextrusion method. Then, by dry crosslinking method using nitrogen gas as the heating medium, continuous crosslinking was performed in the crosslinking pipe, and then pressure cooling was performed to produce multiple wires / cables. Each was evaluated.
【００２０】ボウタイトリー発生数の評価については、
上記の方法により作製した電線を９０℃の温水中に浸漬
し、導体と水との間に５０Ｈｚ，３ｋＶの交流電圧を５
００日間印加した後、絶縁体を薄くスライスしてメチレ
ンブルー水溶液で煮沸染色し、光学顕微鏡を用いてボウ
タイトリー発生の有無とその個数を計数した。Regarding the evaluation of the number of occurrence of bow tie tree,
The electric wire produced by the above method is immersed in warm water of 90 ° C., and an alternating voltage of 50 Hz and 3 kV is applied between the conductor and water for 5 hours.
After applying for 00 days, the insulator was sliced into thin pieces, boiled and dyed with an aqueous solution of methylene blue, and the presence or absence of the occurrence of votitley and the number thereof were counted using an optical microscope.
【００２１】ブルームの有無については電線を作製する
ペレットを８０℃の恒温槽内に１０日間保持した後その
表面を観察し、目視によって評価した。The presence or absence of bloom was evaluated by visually observing the surface of the pellet for producing the electric wire, which was kept in a thermostat at 80 ° C. for 10 days.
【００２２】[0022]
【表１】 [Table 1]
【００２３】この結果、表１からも明らかなように、本
発明に係る添加剤（アミン）を本発明に規定する量だけ
添加した実施例１〜６では、いずれもボウタイトリーの
発生が十分抑止されていると共に、ブルームの発生も認
められなかった。これに対して、上記添加剤を添加しな
い比較例１、あるいは添加剤の添加量が規定量未満
（０．００５重量部）の比較例２はボウタイトリーの発
生数が多かった。また、規定の添加量を越えた（２．０
重量部）比較例３はブルームが見られた。As a result, as is clear from Table 1, in each of Examples 1 to 6 in which the additive (amine) according to the present invention was added in the amount specified in the present invention, the occurrence of bowtitley was sufficiently suppressed. However, no bloom was observed. On the other hand, Comparative Example 1 in which the above additive was not added or Comparative Example 2 in which the additive amount was less than the specified amount (0.005 parts by weight) had a large number of occurrence of votitley. In addition, the specified addition amount was exceeded (2.0
(Parts by weight) In Comparative Example 3, bloom was observed.
【００２４】次に、表２に示す配合成分からなる各種組
成物を上記と同様にして電線・ケーブルを作製し、ボウ
タイトリー発生数、ブルームの有無、誘電正接について
それぞれ評価した。Next, electric wires / cables were produced by using the various compositions comprising the compounding components shown in Table 2 in the same manner as above, and the number of occurrence of bowtitley, the presence or absence of bloom, and the dielectric loss tangent were evaluated.
【００２５】ボウタイトリー発生数及びブルームの有無
の評価方法は上記と同様であるが、誘電正接について
は、電界が１０ｋＶ／ｍｍになるように電圧を印加し
て、シェーリングブリッジにより測定し、その際０．１
％以上の値を示すものを×、その未満のものを○として
判定した。The method of evaluating the number of votitley and the presence / absence of bloom is the same as above, but the dielectric loss tangent is measured by a Schering bridge by applying a voltage so that the electric field is 10 kV / mm. 0.1
Those showing a value of% or more were evaluated as x, and those less than that were evaluated as o.
【００２６】[0026]
【表２】 [Table 2]
【００２７】この結果、表２からも明らかなように、本
発明に係るポリマ及び添加剤を本発明に規定する量だけ
ブレンドまたは添加した実施例７〜１４はいずれもボウ
タイトリーの発生が十分抑止されていると共に、ブルー
ムの発生も認められなかった。これに対し、上記添加物
を添加しない比較例４およびアミド化ポリエチレンのブ
レンド量が規定量よりも少ない比較例５は、ボウタイト
リーの発生数が非常に多かった。また、アミド化ポリエ
チレンのブレンド量が規定量よりも多い比較例６や、規
定の窒素含有量を越えたポリマをブレンドした比較例７
も同様にボウタイトリーの抑止効果が低く、そのうえ、
誘電正接が悪化している。また、添加剤の量が規定値よ
りも多い比較例８はブルームが見られた。As a result, as is clear from Table 2, in each of Examples 7 to 14 in which the polymer and the additive according to the present invention were blended or added in the amounts specified in the present invention, the occurrence of the bowtitley was sufficiently suppressed. However, no bloom was observed. On the other hand, in Comparative Example 4 in which the above additives were not added and Comparative Example 5 in which the blended amount of amidated polyethylene was less than the specified amount, the number of occurrence of bowtitley was very large. Further, Comparative Example 6 in which the blended amount of amidated polyethylene is larger than the specified amount, and Comparative Example 7 in which a polymer having a specified nitrogen content exceeding the blended amount is blended
Also has a low deterrent effect on Bow Tighty, as well as
The dielectric loss tangent is getting worse. In addition, bloom was observed in Comparative Example 8 in which the amount of the additive was larger than the specified value.
【００２８】このように、上記発明はポリエチレンまた
はエチレン共重合体あるいは、これらの混合物１００重
量部、あるいは９９．９〜７０重量部に対して窒素含有
量が０．０１〜１．０ｗｔ％のアミド化ポリエチレンを
０．１〜３０重量部混和したブレンド物１００重量部中
に、上記アミンを０．００５〜１．０重量部添加してな
る電気絶縁組成物を提供するものであり、従来技術では
解決できなかったボウタイトリー及びブルームの発生を
十分抑止することができ、また、誘電正接も良好とな
る。また、この電気絶縁組成物を導体上に被覆すること
により、電気的特性や耐久性等が大巾に改善され、高い
信頼性を有する電線・ケーブルが得られる。As described above, according to the present invention, the amide having a nitrogen content of 0.01 to 1.0 wt% relative to 100 parts by weight of polyethylene or ethylene copolymer or a mixture thereof, or 99.9 to 70 parts by weight. The present invention provides an electrical insulating composition obtained by adding 0.005 to 1.0 part by weight of the above amine to 100 parts by weight of a blend obtained by mixing 0.1 to 30 parts by weight of modified polyethylene. It is possible to sufficiently suppress the occurrence of boutrite and bloom, which could not be solved, and also to improve the dielectric loss tangent. Also, by coating a conductor with this electrical insulating composition, electrical characteristics, durability, etc. are greatly improved, and an electric wire / cable having high reliability can be obtained.
【００２９】[0029]
【発明の効果】以上要するに本発明によれば、絶縁体中
のボイドや異物、並びに絶縁体と半導電層界面の不整と
いった欠陥が存在していたとしてもボウタイトリーの発
生を十分抑止することができ、かつブルームの生じない
絶縁体が得られる等といった優れた効果を有する。In summary, according to the present invention, even if there are defects such as voids and foreign matters in the insulator, and irregularities in the interface between the insulator and the semiconductive layer, the occurrence of the bow tie tree can be sufficiently suppressed. It has an excellent effect such that an insulator that can be formed and bloom is not generated is obtained.
【図１】本発明の電気絶縁物を用いた電力ケーブルの一
実施例を示す断面図である。FIG. 1 is a cross-sectional view showing an example of a power cable using the electrical insulator of the present invention.
１ 導体 ２ 内部半導電層 ３ 絶縁層 ４ 外部半導電層 1 conductor 2 inner semiconductive layer 3 insulating layer 4 outer semiconductive layer
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｈ０１Ｂ 9/02 Ａ 7244−5Ｇ // Ｈ０１Ｂ 7/28 Ｅ 7244−5Ｇ ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 5 Identification code Internal reference number FI Technical display location H01B 9/02 A 7244-5G // H01B 7/28 E 7244-5G
Claims (4)
あるいはこれらの混合物１００重量部に対し、式 （ｎ≠０；Ｒ1 ，Ｒ2 ，Ｒ3 ，Ｒ4 は水素またはフェニ
ル基並びに置換フェニル基を除く炭化水素基の中から選
ばれる）で表わされる合計炭素数４個以上のアミンを
０．００５〜１．０重量部添加してなることを特徴とす
る電気絶縁組成物。1. A polyethylene or an ethylene copolymer,
Alternatively, for 100 parts by weight of these mixtures, the formula (N ≠ 0; R 1 , R 2 , R 3 and R 4 are selected from hydrogen or a hydrocarbon group excluding a phenyl group and a substituted phenyl group), and an amine having a total carbon number of 4 or more is represented by 0. An electrical insulating composition comprising 005 to 1.0 part by weight.
上に被覆し、架橋してなることを特徴とする電線・ケー
ブル。2. An electric wire / cable, characterized in that the electric insulation composition according to claim 1 is coated on the circumference of a conductor and crosslinked.
あるいはこれらの混合物９９．９〜７０重量部に対し窒
素含有量が０．０１〜１．０重量％のアミド化ポリエチ
レンを０．１〜３０重量部混和したブレンド物１００重
量部に対し、式 （ｎ≠０；Ｒ1 ，Ｒ2 ，Ｒ3 ，Ｒ4 は水素またはフェニ
ル基並びに置換フェニル基を除く炭化水素基の中から選
ばれる）で表わされる合計炭素数４個以上のアミンを
０．００５〜１．０重量部添加してなることを特徴とす
る電気絶縁組成物。3. A polyethylene or ethylene copolymer,
Alternatively, to 100 parts by weight of a blend obtained by mixing 0.1 to 30 parts by weight of amidated polyethylene having a nitrogen content of 0.01 to 1.0% by weight with respect to 99.9 to 70 parts by weight of these mixtures, (N ≠ 0; R 1 , R 2 , R 3 and R 4 are selected from hydrogen or a hydrocarbon group excluding a phenyl group and a substituted phenyl group), and an amine having a total carbon number of 4 or more is represented by 0. An electrical insulating composition comprising 005 to 1.0 part by weight.
上に被覆し、架橋してなることを特徴とする電線・ケー
ブル。4. An electric wire / cable, characterized in that the electric insulating composition according to claim 3 is coated on the circumference of a conductor and crosslinked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4261718A JPH06111629A (en) | 1992-09-30 | 1992-09-30 | Electrical insulating composition and electric wire and cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4261718A JPH06111629A (en) | 1992-09-30 | 1992-09-30 | Electrical insulating composition and electric wire and cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06111629A true JPH06111629A (en) | 1994-04-22 |
Family
ID=17365748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4261718A Pending JPH06111629A (en) | 1992-09-30 | 1992-09-30 | Electrical insulating composition and electric wire and cable |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06111629A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999044206A1 (en) * | 1998-02-25 | 1999-09-02 | Abb Ab | Insulated electric cable |
-
1992
- 1992-09-30 JP JP4261718A patent/JPH06111629A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999044206A1 (en) * | 1998-02-25 | 1999-09-02 | Abb Ab | Insulated electric cable |
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