JPS63304516A - Insulated electric wire - Google Patents
Insulated electric wireInfo
- Publication number
- JPS63304516A JPS63304516A JP62139364A JP13936487A JPS63304516A JP S63304516 A JPS63304516 A JP S63304516A JP 62139364 A JP62139364 A JP 62139364A JP 13936487 A JP13936487 A JP 13936487A JP S63304516 A JPS63304516 A JP S63304516A
- Authority
- JP
- Japan
- Prior art keywords
- resin
- air
- insulating layer
- resistance
- varnish
- 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
- 239000011347 resin Substances 0.000 claims abstract description 20
- 229920005989 resin Polymers 0.000 claims abstract description 20
- 239000002966 varnish Substances 0.000 claims abstract description 11
- 239000004020 conductor Substances 0.000 claims abstract description 8
- 239000004697 Polyetherimide Substances 0.000 claims description 12
- 229920001601 polyetherimide Polymers 0.000 claims description 12
- 229920001721 polyimide Polymers 0.000 claims description 11
- 239000009719 polyimide resin Substances 0.000 claims description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 4
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 2
- 230000002285 radioactive effect Effects 0.000 abstract 4
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 230000005855 radiation Effects 0.000 description 17
- 239000010410 layer Substances 0.000 description 11
- 238000001125 extrusion Methods 0.000 description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000011247 coating layer Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 235000015842 Hesperis Nutrition 0.000 description 1
- 235000012633 Iberis amara Nutrition 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000005251 gamma ray Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 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
- Insulated Conductors (AREA)
Abstract
Description
【発明の詳細な説明】
（発明の利用分野〕
本発明は 絶縁電線、特に耐放射線性に優れた絶縁電線
に関するものである。本発明の絶縁電線は 例えば原子
力発電所、人工衛星、ロケットなどのような特殊な環境
下において使用される絶縁電線として好適である。[Detailed Description of the Invention] (Field of Application of the Invention) The present invention relates to an insulated wire, particularly an insulated wire with excellent radiation resistance. It is suitable as an insulated wire used under such special environments.
例えば原子力発電所、人工衛星、ロケット、放射線使用
施設などの特殊な環境下で用いられる絶縁電線には 耐
熱性及び難燃性の外、特に耐放射線性に関して厳しい特
性が要求される。例えば核融合炉周辺で用いられる絶縁
電線やケーブルの中には 空気中でＩＯＭＧＹ以上の耐
放射線性を有する耐高電圧計装用ケーブルなどが要求さ
れている。For example, insulated wires used in special environments such as nuclear power plants, satellites, rockets, and facilities that use radiation are required to have strict characteristics in addition to heat resistance and flame retardance, especially radiation resistance. For example, among the insulated wires and cables used around nuclear fusion reactors, high-voltage instrumentation cables that have radiation resistance in the air of IOMGY or higher are required.
従来 このような空気中でＩＯＭＧＹ以上の耐放射線性
を有するものとしては 無機物質やポリイミド樹脂から
なる絶縁材料しかなく、しかも両者共テープ状にし、こ
れを導体に捲回して絶縁層を形成させるものであった。Conventionally, the only materials that have radiation resistance higher than IOMGY in such air are insulating materials made of inorganic substances or polyimide resin, and both are made into tapes and wound around a conductor to form an insulating layer. Met.
しかし、このようなテープ巻によって形成された絶縁層
では 高電圧に耐えられず、この種の絶縁材料としては
不適当であった。従って耐高電圧のものとしては 素材
としてポリエーテルイミド樹脂を使用し、押出成形によ
って形成させたものがあったが、この絶縁層を無機物質
系絶縁層やポリイミド樹脂系絶縁層に比較すると、耐放
射線性に劣り、空気中でＩＯＭＧＹ以上では使用不可能
であった。However, the insulating layer formed by such tape winding could not withstand high voltage, making it unsuitable for this type of insulating material. Therefore, high-voltage insulating layers have been made using polyetherimide resin as a material and formed by extrusion molding, but when comparing this insulating layer with inorganic material-based insulating layers and polyimide resin-based insulating layers, the durability is lower. It had poor radioactivity and could not be used in air above IOMGY.
〔問題点を解決するための手段及び作用〕本発明は 上
記の従来技術にあった問題点を解決するために為された
ものであって、特に耐放射線性に優れ、しかも安価な絶
縁電線を提供することを目的とするものである。すなわ
ち、本発明は心線導体上にポリエーテルイミド樹脂から
なる絶縁層が設けられ、さらに該絶縁層上にポリイミド
樹脂ワニスが被覆されていることを特徴とする絶縁電線
である。[Means and effects for solving the problems] The present invention has been made to solve the problems of the above-mentioned prior art. The purpose is to provide That is, the present invention is an insulated wire characterized in that an insulating layer made of polyetherimide resin is provided on a core conductor, and the insulating layer is further coated with polyimide resin varnish.
本発明において用いられるポリエーテルイミド樹脂は
一般式：
によって表されるものである。ポリエーテルイミド樹脂
の市販品としては 例えばｒＵＬＴＥＭ １０００ Ｊ
（商品名：エンジニアリングプラスチンクろ■製）が
ある。The polyetherimide resin used in the present invention is
General formula: It is represented by: Commercially available polyetherimide resins include rULTEM 1000 J.
(Product name: Engineering Plastic Chinkuro ■).
上記のポリエーテルイミド樹脂は 熱可塑性を有し、押
出成形ができる。また芳香環が多い分子構造から推定さ
れるように、耐放射線性に優れており、特に空気のない
窒素中では１００ＭＧＹまでの耐性がある。しかし空気
中ではＩＯＭＧＹを超えた放射線に対しては耐性がない
ので、このポリエーテルイミド樹脂層の上からポリイミ
ド樹脂ワニスを被覆し、このワニス層により空気を遮断
することにより空気中でＩＯＭＧＹを超えた放射線に対
しても耐性を付与し、しかも耐電圧にも優れたものにす
るのである。The above polyetherimide resin has thermoplasticity and can be extruded. Furthermore, as expected from the molecular structure with many aromatic rings, it has excellent radiation resistance, and is particularly resistant to up to 100 MGY in nitrogen without air. However, since there is no resistance to radiation exceeding IOMGY in the air, by covering this polyetherimide resin layer with polyimide resin varnish and blocking the air with this varnish layer, radiation exceeding IOMGY in the air can be exceeded. This makes it resistant to radiation and also has excellent withstand voltage.
代表的なポリイミド樹脂としては 下記の一般弐：
あるいは
によって表される樹脂で、空気中でＩＯＭＧＹを超えた
放射線に対しても耐性を有する。 ポリイミド樹脂の市
販品としては 「パイヤＭＬＪ （商品名：米国デュ
ポン社製）、 「Ｕワニス」 （商品名：宇部興産株
製）などがある。Typical polyimide resins include the following general 2: or resins that are resistant to radiation exceeding IOMGY in air. Commercially available polyimide resin products include "Paiya MLJ" (trade name: manufactured by DuPont, USA) and "U Varnish" (trade name: manufactured by Ube Industries, Ltd.).
前記のポリエーテルイミド樹脂は 特にメルトインデッ
クス（Ｍ Ｉ ）が４〜２ｏの範囲内のものが好ましい
。Ｍｌが４未満のものは 押出加工性が悪く、外観の良
い被覆層が得られず、Ｍｌが２０を超えるものは 高温
での引っ張り強度が低いので好ましくない。さらにＭｌ
が４〜６のものは電気的特性も良好であり、この範囲の
Ｍｌのポリエーテルイミド樹脂からなる被覆層を有する
絶縁電線は 特に優れたものである。なお、この”Ｍｌ
”は ’Ｔｉｎ１ｕｓ ０１ｓｅｎ Ｅｘｔｒｕｓｉｏ
ｎ Ｐｌａｓｔｍｅｔｅｒ Ｊを用い、加熱温度３４３
．５°Ｃ１荷重６．６００ｇ、プランジャー１００ｇと
の条件のもとにｒＡｓＴＭ Ｄ１２３８−門ｅｔｈｏ
ｄ Ａ”Ｊに準拠して測定した値である。The polyetherimide resin described above preferably has a melt index (M I ) of 4 to 2o. If the Ml is less than 4, the extrusion processability is poor and a coating layer with good appearance cannot be obtained, and if the Ml is more than 20, the tensile strength at high temperatures is low, so these are not preferred. Furthermore, Ml
Those with a Ml of 4 to 6 have good electrical properties, and insulated wires having a coating layer made of polyetherimide resin with an Ml in this range are particularly excellent. In addition, this “Ml
” is 'Tin1us 01sen Extrusio
Using a Plastmeter J, the heating temperature was 343
．． rAsTM D1238-etho under the conditions of 5°C1 load 6.600g and plunger 100g
d This is a value measured in accordance with A"J.
（実施例〕 以下 本発明を詳細にかつ具体的に説明する。(Example〕 The present invention will be explained in detail and specifically below.
実施炎−１
２８ｍｍ押出機を使用し、押出温度３７０’Ｃのもとサ
イズ１．２５ｍｒ＋ｆの二ンケルメッキ導体にポリエー
テルイミド樹脂ｒＵＬＴＥＭ １０００ 、を厚さ０．
７ｍｍに押出被覆した。その後 ポリイミド樹脂ワニス
「パイヤＭＬ、を厚さ１０ｍｍに被覆した。得られた絶
縁電線を１試料１”とする。Flame-1 Using a 28 mm extruder and extrusion temperature of 370'C, polyetherimide resin rULTEM 1000 was applied to a 2-inkel plated conductor of size 1.25 mr+f to a thickness of 0.
Extrusion coated to 7 mm. Thereafter, it was coated with polyimide resin varnish "Paiya ML" to a thickness of 10 mm.The resulting insulated wire was referred to as 1 sample.
人旌斑−又
実施例１において、ポリイミド樹脂ワニス「パイヤＭＬ
Ｊに代えて「Ｕワニス」を使用した外は実施例１の場合
と同様にして実施し、絶縁電線を作成した。これを”試
料２”とする。In addition, in Example 1, polyimide resin varnish "Paiya ML"
An insulated wire was produced in the same manner as in Example 1 except that "U varnish" was used instead of J. This will be referred to as "Sample 2".
北上」Ｌ」−
サイズ１．２５ｍｎ（のニッケルメッキ導体に厚さ２５
μｍのポリイミド樹脂フィルム「カプトンＦフィルムＪ
（商品名：米国デュポン社製）を１４回巻きし、厚さ
０．７ｍｍの絶縁層を形成させ、絶縁電線を作成した。Kitakami "L" - size 1.25mm (nickel plated conductor with thickness 25mm)
μm polyimide resin film “Kapton F Film J”
(trade name: manufactured by DuPont, USA) was wound 14 times to form an insulating layer with a thickness of 0.7 mm, thereby producing an insulated wire.
これを”比較試料１”とする。This will be referred to as "comparative sample 1."
北較拠−Ｉ
２８ｍｍ押出機を使用し、押出温度３７０°Ｃのもとサ
イズ１．２５ｍｒＴｆの二ンケルメソキ導体にポリエー
テルイミド樹脂ｒＵＬＴＥＭ １０００ Ｊを厚さ０．
７ｍｍに押出被覆した。得られた絶縁電線を”比較試料
２”とする。Using a 28 mm extruder, polyetherimide resin rULTEM 1000 J was applied to a 1.25 mrTf Ninkel metal conductor with a thickness of 0.0 mm at an extrusion temperature of 370°C.
Extrusion coated to 7 mm. The obtained insulated wire is referred to as "Comparative Sample 2."
上記のごとく製造した各試料について、耐電圧と耐放射
線性について評価、測定したところ、第１表に記載され
ているごとき結果が得られた。なお、各々の耐放射線性
の評価方法は 下記の通りである。When each sample produced as described above was evaluated and measured for withstand voltage and radiation resistance, the results shown in Table 1 were obtained. The evaluation method for each radiation resistance is as follows.
の量・個性
各試料について ■あらかじめ及び■Ｃｏ−６０のγ線
を空気中で線量率１０’ＭＧＹ ７時で１０ＭＧＹま
で照射した後に「屈曲浸水耐電圧試験」を行った。各試
験において 各試料１００ｍを直径５ｃｍのマンドレル
に巻きつけて電圧を印加し、１７ＫＶで１０分 間耐え
るか否かを評価し、絶縁破壊が生しなかった場合を「○
」 （耐放射線性あり）、絶縁破壊が生じた場合を「×
」（耐放射線性なし）として表示した。Amount/Characteristics Regarding each sample, a "bending water immersion voltage test" was conducted in advance and after irradiation with Co-60 gamma rays in the air at a dose rate of 10'MGY at 7:00 to 10MGY. In each test, 100 m of each sample was wound around a mandrel with a diameter of 5 cm, a voltage was applied, and it was evaluated whether it could withstand 17 KV for 10 minutes.
” (radiation resistant), and when dielectric breakdown occurs, “×”
” (no radiation resistance).
第 １ 表
第１表に示された結果から明らかなように、本発明によ
る絶縁電線”試料ビ及び”試料２”はＴ線照射前におい
ては勿論、Ｔ線照射後においても耐放射線性ありと評価
された。しかしポリイミド樹脂テープを巻いた”比較試
料ビは Ｔ線照射前にすでに耐放射線性がなく、またポ
リエーテルイミド樹脂を被覆しただけの”比較試料２”
はγ線照射により耐放射線性を喪失してしまうことが分
かった。Table 1 As is clear from the results shown in Table 1, the insulated wires "Sample B" and "Sample 2" according to the present invention have radiation resistance not only before T-ray irradiation but also after T-ray irradiation. However, ``Comparative Sample 2'' wrapped with polyimide resin tape already lacked radiation resistance before T-ray irradiation, and ``Comparative Sample 2'' was coated only with polyetherimide resin.
It was found that γ-ray irradiation causes loss of radiation resistance.
Claims (1)
設けられ、さらに該絶縁層上にポリイミド樹脂ワニスが
被覆されていることを特徴とする絶縁電線。An insulated wire characterized in that an insulating layer made of polyetherimide resin is provided on a core conductor, and the insulating layer is further coated with polyimide resin varnish.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62139364A JPS63304516A (en) | 1987-06-03 | 1987-06-03 | Insulated electric wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62139364A JPS63304516A (en) | 1987-06-03 | 1987-06-03 | Insulated electric wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63304516A true JPS63304516A (en) | 1988-12-12 |
Family
ID=15243609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62139364A Pending JPS63304516A (en) | 1987-06-03 | 1987-06-03 | Insulated electric wire |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63304516A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04324208A (en) * | 1991-04-25 | 1992-11-13 | Japan Atom Energy Res Inst | Radiation ray resistant coaxial cable |
-
1987
- 1987-06-03 JP JP62139364A patent/JPS63304516A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04324208A (en) * | 1991-04-25 | 1992-11-13 | Japan Atom Energy Res Inst | Radiation ray resistant coaxial cable |
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