JPH0128586Y2 - - Google Patents
Info
- Publication number
- JPH0128586Y2 JPH0128586Y2 JP17163682U JP17163682U JPH0128586Y2 JP H0128586 Y2 JPH0128586 Y2 JP H0128586Y2 JP 17163682 U JP17163682 U JP 17163682U JP 17163682 U JP17163682 U JP 17163682U JP H0128586 Y2 JPH0128586 Y2 JP H0128586Y2
- Authority
- JP
- Japan
- Prior art keywords
- eva
- vinyl
- compound
- watertight compound
- insulating layer
- 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
Links
- 239000004020 conductor Substances 0.000 claims description 15
- 229920005989 resin Polymers 0.000 claims description 14
- 239000011347 resin Substances 0.000 claims description 14
- 150000001875 compounds Chemical class 0.000 claims description 13
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 claims description 8
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 7
- 229920002554 vinyl polymer Polymers 0.000 claims description 7
- 239000000463 material Substances 0.000 claims 1
- 229920001897 terpolymer Polymers 0.000 claims 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 12
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 12
- 229940126214 compound 3 Drugs 0.000 description 6
- 239000012212 insulator Substances 0.000 description 6
- 229920003314 Elvaloy® Polymers 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 229920005601 base polymer Polymers 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N Acrylic acid Chemical class OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 229920006026 co-polymeric resin Polymers 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 125000000816 ethylene group Chemical group [H]C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Landscapes
- Insulated Conductors (AREA)
Description
【考案の詳細な説明】
本考案は、撚線導体間の空隙中に変性EVA（変
性エチレン・酢酸ビニル共重合体）系樹脂を主成
分とする水密コンパウンドを充填させてなる架空
絶縁電線などとして利用されるビニル絶縁電線に
関するものである。[Detailed description of the invention] This invention is used as an overhead insulated electric wire, etc., which is made by filling the voids between stranded wire conductors with a watertight compound whose main component is modified EVA (modified ethylene/vinyl acetate copolymer) resin. This relates to the vinyl insulated wires used.
この種の電線に於て、撚線導体中に水密コンパ
ウンドを充填することによつて、導体間への水の
侵入を防止し、導体の劣化、変質などがなく、長
期に亘つて安定した電気的特性等を得ようとする
ことが一般に行なわれている。 By filling the stranded conductors with a watertight compound, this type of electric wire prevents water from entering between the conductors, ensuring stable electricity over a long period of time without deterioration or deterioration of the conductors. It is common practice to try to obtain specific characteristics, etc.
そして、近年、かゝる水密コンパウンドとし
て、導体金属および絶縁体樹脂の両者に対する接
着性の良さ、市販品として豊富なブレンド品を有
し使い易いなどの点から、EVA（エチレン・酢酸
ビニル共重合体）またはEEA（エチレン・アクリ
ル酸エチル共重合体）、さらにはこれらのブレン
ド物を主成分とするものが、よく用いられている
が、ビニル絶縁電線の場合、前記のEVAやEEA
が絶縁体の塩化ビニル樹脂に対して、殆んど接着
性がなく、十分な水密性が得られない他、絶縁体
層の皮剥き作業などの際、ビニル絶縁体層のみが
剥ぎ取られるのみで、導体外周側の水密コンパウ
ンドが導体側に残るなど、作業上、問題があつ
た。 In recent years, EVA (ethylene-vinyl acetate copolymer) has been used as such a watertight compound due to its good adhesion to both conductive metals and insulating resins, its ease of use, and the availability of a wide variety of commercially available blends. EVA (ethylene/ethyl acrylate copolymer) or EEA (ethylene/ethyl acrylate copolymer), or even a blend of these are commonly used.
has almost no adhesion to the insulating vinyl chloride resin, making it impossible to obtain sufficient watertightness, and when stripping the insulating layer, only the vinyl insulating layer is peeled off. However, there were problems with the work, such as the watertight compound on the outer circumferential side of the conductor remaining on the conductor side.
そこで、本考案者等は、ビニル絶縁電線におい
て、絶縁体の塩化ビニル樹脂とも接着性がよく、
かつまた導体とも接着性のよい水密コンパウンド
を求むべく、種々の実験、研究を繰り返したとこ
ろ、上述の変性EVA系樹脂が上記条件を満足す
るものであることを見出した。 Therefore, the inventors of the present invention have developed vinyl insulated wires that have good adhesion to vinyl chloride resin as an insulator.
In order to find a watertight compound that also has good adhesion to conductors, we repeated various experiments and research, and found that the above-mentioned modified EVA resin satisfies the above conditions.
本考案は、このような研究結果に基づきなされ
たもので、その目的とするところは、絶縁体層を
塩化ビニル樹脂とする電線において、水密コンパ
ウンドとして、変性EVA系の樹脂を主成分とす
るものを用いることにより、絶縁体の塩化ビニル
樹脂および導体金属の両者に十分な接着性を有す
る電線を提供せんとするにある。 The present invention was made based on these research results, and its purpose is to develop a watertight compound that uses modified EVA-based resin as the main component in electric wires whose insulating layer is made of vinyl chloride resin. By using this method, it is intended to provide an electric wire that has sufficient adhesion to both the insulating vinyl chloride resin and the conductive metal.
次に、かゝる本考案の一実施例を図面によりさ
らに詳説する。 Next, one embodiment of the present invention will be explained in more detail with reference to the drawings.
第１図は本考案に係る電線の端面を示すもので
あり、図中、１は複数本の銅線１ａ…などを撚つ
た撚線導体、２は塩化ビニル樹脂からなる絶縁体
層、３は導体１間の空隙中に充填された変性
EVA系樹脂よりなる水密コンパウンドである。 FIG. 1 shows the end face of the electric wire according to the present invention. In the figure, 1 is a stranded conductor made of a plurality of copper wires 1a, etc., 2 is an insulator layer made of vinyl chloride resin, and 3 is an insulator layer made of vinyl chloride resin. Modification filled in the void between conductors 1
It is a watertight compound made of EVA resin.
このコンパウンド３としては、例えばEVAを
アルコールで加水分解したもの、あるいはEVA
にカルボン酸ビニル化合物をグラフ化させたもの
等が挙げられ、具体的なものを挙げると、エルバ
ロイ（商品名）として知られている三井ポリケミ
カル社製のものが好ましい。そして、このエルバ
ロイを用いた水密コンパウンドの具体的配合の一
例を示すと、次の如くである。 Compound 3 is, for example, EVA hydrolyzed with alcohol, or EVA
Examples include graphs of vinyl carboxylic acid compounds, and to give specific examples, one manufactured by Mitsui Polychemical Co., Ltd. known as Elvaloy (trade name) is preferred. An example of a specific formulation of a watertight compound using Elvaloy is as follows.
エルバロイ 100 重量部
酸化防止剤 0.01〜0.5 〃
銅害防止剤 0.001〜0.1 〃
カーボンブラツク 0.01〜５ 〃
無機充填剤 ０〜50 〃
可塑剤 ０〜50 〃
このエルバロイを主成分とする水密コンパウン
ド３は、上述のように導体金属とよく接着すると
同時に絶縁体層の塩化ビニル樹脂にもよく接着す
るものであるため、水の侵入は効果的に防止され
る。また絶縁体層の皮剥ぎをする場合などには、
第２図Ａ，Ｂに示すように絶縁体層２と水密コン
パウンド３とは極めてよく接着されているが、コ
ンパウンド３の絶縁体層２に対する接着力が、コ
ンパウンド３の導体１に対する接着力より大きい
ため、導体１の外周側に位置するコンパウンド３
ａは絶縁体層２と同時に剥ぎ取られる。なお、前
記変性EVAは、それ単独を水密性コンパウンド
のベースポリマーとしてもよいし、EVAをブレ
ンドしたものをベースポリマーとしてもよい。Elvaloy 100 Parts by weight Antioxidant 0.01-0.5 Copper damage inhibitor 0.001-0.1 Carbon black 0.01-5 Inorganic filler 0-50 Plasticizer 0-50 This watertight compound 3 containing Elvaloy as the main component is As described above, since it adheres well to the conductive metal and at the same time to the vinyl chloride resin of the insulating layer, water intrusion is effectively prevented. Also, when stripping the insulation layer,
As shown in Figures 2A and B, the insulating layer 2 and the watertight compound 3 are extremely well adhered, but the adhesive force of the compound 3 to the insulating layer 2 is greater than the adhesive force of the compound 3 to the conductor 1. Therefore, the compound 3 located on the outer circumferential side of the conductor 1
a is stripped off at the same time as insulator layer 2. Note that the modified EVA may be used alone as the base polymer of the watertight compound, or a blend of EVA may be used as the base polymer.
尚、本考案に係るビニル絶縁電線においては、
上記実施例において述べた構成の他、必要により
他の構成、例えば半導電層、シースなどを設ける
ことができること、勿論である。 In addition, in the vinyl insulated wire according to the present invention,
In addition to the configurations described in the above embodiments, it is of course possible to provide other configurations, such as a semiconducting layer, a sheath, etc., if necessary.
以上の説明から明らかなように本考案によれ
ば、水密コンパウンドとして変性EVA系樹脂を
用いてあるため、十分な水密性が得られると共
に、絶縁体層の皮剥ぎ時、水密コンパウンドが同
時に剥ぎ取られる作業性の良好なビニル絶縁電線
を提供することができる。 As is clear from the above explanation, according to the present invention, since a modified EVA resin is used as the watertight compound, sufficient watertightness can be obtained, and the watertight compound can be peeled off at the same time when the insulating layer is peeled off. It is possible to provide a vinyl insulated wire with good workability.
第１図は本考案に係るビニル絶縁電線の一実施
例を示す縦断端面図、第２図Ａ，Ｂは上記電線の
皮剥ぎされた状態を示し、第２図Ａは導体部分の
縦断端面図、第２図Ｂは絶縁体層部分の縦断端面
図である。
１…撚線導体、２…絶縁体層、３…水密コンパ
ウンド。
FIG. 1 is a vertical cross-sectional end view showing an embodiment of the vinyl insulated wire according to the present invention, FIGS. 2 A and B show the wire in a stripped state, and FIG. 2 A is a vertical cross-sectional end view of the conductor portion. , FIG. 2B is a longitudinal cross-sectional end view of the insulator layer portion. 1... Stranded wire conductor, 2... Insulator layer, 3... Watertight compound.
Claims (1)
EVA系樹脂（EVA加水分解物やEVAグラフトタ
ーポリマー等）を主成分とするドライタイプの水
密コンパウンドと、その外方に被覆された塩化ビ
ニル樹脂よりなる絶縁体層とから構成されること
を特徴とするビニル絶縁電線。 A stranded conductor and a modified material filled between the stranded conductors
It is characterized by being composed of a dry type watertight compound mainly composed of EVA resin (EVA hydrolyzate, EVA graft terpolymer, etc.) and an insulating layer made of vinyl chloride resin coated on the outside. Vinyl insulated wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17163682U JPS5976019U (en) | 1982-11-15 | 1982-11-15 | vinyl insulated wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17163682U JPS5976019U (en) | 1982-11-15 | 1982-11-15 | vinyl insulated wire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5976019U JPS5976019U (en) | 1984-05-23 |
| JPH0128586Y2 true JPH0128586Y2 (en) | 1989-08-31 |
Family
ID=30374363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17163682U Granted JPS5976019U (en) | 1982-11-15 | 1982-11-15 | vinyl insulated wire |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5976019U (en) |
-
1982
- 1982-11-15 JP JP17163682U patent/JPS5976019U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5976019U (en) | 1984-05-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0128586Y2 (en) | ||
| JP3688319B2 (en) | Watertight cable, cable | |
| JP2829527B2 (en) | Water resistant cable | |
| JPH09204822A (en) | Cable with water cut-off function and manufacture thereof | |
| JPH0126003Y2 (en) | ||
| JPH0122181Y2 (en) | ||
| JP2939740B1 (en) | Connectors and their watertightness | |
| JP2829528B2 (en) | Water resistant cable | |
| JPH0531784Y2 (en) | ||
| JPS6312328B2 (en) | ||
| JPH0436003Y2 (en) | ||
| JP2657507B2 (en) | Watertight conductor | |
| JPH0342572Y2 (en) | ||
| JPH0696624A (en) | Water-tight insulated electric wire | |
| JPH079770B2 (en) | Cross-linked polyethylene insulation high voltage cable | |
| JPH01243305A (en) | Electrically insulated cable | |
| JP3508975B2 (en) | Water-tight resin composition for insulated wires to be filled under pressure between conductors and between conductors and insulators, and insulated wires using the same | |
| JP2918900B2 (en) | Watertight conductor | |
| JPH0750107A (en) | Water-proof tree cable | |
| JPS6015389Y2 (en) | Rubber and plastic insulated cable connections | |
| JPS59170319U (en) | watertight insulated wire | |
| JPS63168911A (en) | Water tight vinyl chloride insulated wire | |
| JPS5829176Y2 (en) | Structure of insoluble anode connection part | |
| JPH0638391Y2 (en) | End structure of heater | |
| JPS59127520A (en) | Terminal connector of rubber and plastic power cable |