JPH0237618A - Watertight vinyl insulated electric wire - Google Patents
Watertight vinyl insulated electric wireInfo
- Publication number
- JPH0237618A JPH0237618A JP63187737A JP18773788A JPH0237618A JP H0237618 A JPH0237618 A JP H0237618A JP 63187737 A JP63187737 A JP 63187737A JP 18773788 A JP18773788 A JP 18773788A JP H0237618 A JPH0237618 A JP H0237618A
- Authority
- JP
- Japan
- Prior art keywords
- pvc
- watertight
- ethylene
- vinyl
- vinyl chloride
- 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
- 229920002554 vinyl polymer Polymers 0.000 title claims abstract description 14
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 title claims description 10
- 239000004800 polyvinyl chloride Substances 0.000 claims abstract description 35
- 229920000915 polyvinyl chloride Polymers 0.000 claims abstract description 29
- 150000001875 compounds Chemical class 0.000 claims abstract description 25
- 239000012212 insulator Substances 0.000 claims abstract description 14
- 229920001577 copolymer Polymers 0.000 claims abstract description 10
- 239000000203 mixture Substances 0.000 claims abstract description 9
- 229920005670 poly(ethylene-vinyl chloride) Polymers 0.000 claims abstract description 5
- 239000004014 plasticizer Substances 0.000 claims description 6
- 239000004020 conductor Substances 0.000 abstract description 12
- 239000002184 metal Substances 0.000 abstract 2
- 230000006866 deterioration Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000009413 insulation Methods 0.000 description 6
- 239000000126 substance Substances 0.000 description 4
- 239000005038 ethylene vinyl acetate Substances 0.000 description 3
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 description 2
- 229920005601 base polymer Polymers 0.000 description 2
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 description 2
- 229920006244 ethylene-ethyl acrylate Polymers 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- ORTYMGHCFWKXHO-UHFFFAOYSA-N diethadione Chemical compound CCC1(CC)COC(=O)NC1=O ORTYMGHCFWKXHO-UHFFFAOYSA-N 0.000 description 1
- HBGGXOJOCNVPFY-UHFFFAOYSA-N diisononyl phthalate Chemical compound CC(C)CCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCC(C)C HBGGXOJOCNVPFY-UHFFFAOYSA-N 0.000 description 1
- DROMNWUQASBTFM-UHFFFAOYSA-N dinonyl benzene-1,2-dicarboxylate Chemical compound CCCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCCC DROMNWUQASBTFM-UHFFFAOYSA-N 0.000 description 1
- 239000005042 ethylene-ethyl acrylate Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- JNXDCMUUZNIWPQ-UHFFFAOYSA-N trioctyl benzene-1,2,4-tricarboxylate Chemical compound CCCCCCCCOC(=O)C1=CC=C(C(=O)OCCCCCCCC)C(C(=O)OCCCCCCCC)=C1 JNXDCMUUZNIWPQ-UHFFFAOYSA-N 0.000 description 1
- -1 vinyl compound Chemical class 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】
〈産業上の利用分野〉
本発明は、架空配電線等に用いられろ水密ビニル絶縁電
線に関するものである。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a watertight vinyl insulated electric wire used for overhead distribution lines and the like.
〈従来の技術〉
架空配電線には、例えばポリエチレン絶縁架橋ポリエチ
レン絶縁電線等があり、架橋張力と浸入水分との相乗効
果により応力腐蝕が生じ易く、断線することがあるため
、電線内への水分の浸入を防ぐべく、水密コンパウンド
を用いて対処している。<Prior art> Overhead distribution lines include, for example, polyethylene-insulated cross-linked polyethylene-insulated wires, which are prone to stress corrosion due to the synergistic effect of cross-linking tension and infiltrated moisture, which can lead to wire breakage. Water-tight compounds are used to prevent the infiltration of water.
このような水密性絶縁電線にあっては、次のような特性
が要求される。Such watertight insulated wires are required to have the following characteristics.
■先ず、水密コンパウンドと電線導体との密着性が良好
で、導体側への水分の浸入が十分に抑えられること。■First, the adhesion between the watertight compound and the wire conductor must be good, and the infiltration of moisture into the conductor side must be sufficiently suppressed.
■一方、口出し時等の作業性を考慮して、水密コンパウ
ンドが塩化ビニル（ｐｖｃ）等の絶縁体ともよく密着し
、皮剥ぎの際、水密コンパウンドが導体側に残留しない
こと。つまり、上記導体との密着力より、絶縁体とのそ
れが大きいこと。■On the other hand, in consideration of workability during opening, etc., the watertight compound should adhere well to insulators such as vinyl chloride (PVC), and the watertight compound should not remain on the conductor side when peeling. In other words, the adhesion force with the insulator is greater than the adhesion force with the conductor.
従来、この種の水密コンパウンドとしては、エチレン酢
酸ビニルｌｉ合体（ＥＶＡ） 、エチレン−アクリル酸
エチル共重合体（ＥＥＡ）等が使用されている。Hitherto, as this type of watertight compound, ethylene vinyl acetate li (EVA), ethylene-ethyl acrylate copolymer (EEA), etc. have been used.
〈発明が解決しようとする課題〉
ところが、上記従来の水密コンパウンドにあっては、Ｐ
ｖＣ絶縁体との密着性が悪く、上記０項の口出し性に問
題があった。<Problem to be solved by the invention> However, in the above conventional watertight compound, P
The adhesion with the vC insulator was poor, and there was a problem with the above-mentioned item 0.
本発明は、このような実情に鑑みてなされたもので、そ
の目的とするところは、電線導体との密着性も良好であ
るが、ＰＶＣ絶縁体との密着性がより高く、水密性と皮
剥ぎ性の両特性を兼ね備えた水密ビニル絶縁電線を提供
せんとするところにある。The present invention was made in view of the above circumstances, and its purpose is to provide good adhesion to electric wire conductors, but also to achieve higher adhesion to PVC insulators, watertightness and skin protection. The object of the present invention is to provide a watertight vinyl insulated electric wire that has both characteristics of peelability.
〈課題を解決するための手段及びその作用〉か＼る本発
明の水密ビニル絶縁電線は、ポリ塩化ビニル（ＰＶＣ）
、エチレン−塩化ビニル共重合体（Ｅ−ＰＶＣ） 、エ
チレン酢酸ビニル−塩化ビニル共重合体（ＥＶＡ−ＰＶ
Ｃ）またはこれらの混合物１００重量部と・、エチレン
−塩化ビニルグリシジルメタアクリレート共重合体（Ｅ
−ＰＶＣ−ＧＭＡ）２０〜６０重量部とからなる混和物
を水密コンパウンドとしたものである。そして、必要に
より、この水密コンパウンドに絶縁体のポリ塩化ビニル
（ＰＶＣ）に用いられているのと同種の可塑剤を、当該
水密コンパウンド１００重量部に３０〜５０重量部添加
したものである。<Means for solving the problems and their effects> The watertight vinyl insulated electric wire of the present invention is made of polyvinyl chloride (PVC).
, ethylene-vinyl chloride copolymer (E-PVC), ethylene-vinyl acetate-vinyl chloride copolymer (EVA-PV
C) or 100 parts by weight of a mixture thereof; and ethylene-vinyl chloride glycidyl methacrylate copolymer (E
-PVC-GMA)) is made into a watertight compound. If necessary, 30 to 50 parts by weight of a plasticizer of the same type as that used in polyvinyl chloride (PVC) as an insulator is added to 100 parts by weight of the watertight compound.
本発明の場合、ＰＶＣ絶縁体が使用される電線において
、水密コンパウンドのベースポリマーとして、ＰＶＣ絶
縁体と同一または同種のＰＶＣ成分が含有される、ポリ
塩化ビニル（ＰＶＣ）、エチレン−塩化ビニル共重合体
（Ｅ−ＰＶＣ） 、エチレン酢酸ビニル−塩化ビニル共
重合体（ＥＶＡ−ＰＶＣ）またはこれらの混合物、さら
にエチレン−塩化ビニル−グリシジルメタアクリレート
共重合体（Ｅ−ＰＶＣ−ＧＭＡ）が用いられるため、Ｐ
ＶＣ絶縁体と良好な密着性が得られる。In the case of the present invention, polyvinyl chloride (PVC), ethylene-vinyl chloride copolymer, etc., which contain the same or similar PVC component as the PVC insulator as the base polymer of the watertight compound in the electric wire in which PVC insulation is used. (E-PVC), ethylene vinyl acetate-vinyl chloride copolymer (EVA-PVC), or a mixture thereof, and ethylene-vinyl chloride-glycidyl methacrylate copolymer (E-PVC-GMA). P
Good adhesion with VC insulator can be obtained.
ここで、本発明に使用されるＰＶＣとしては、例えば三
井東圧化学工業■のビニクロン、理研ビニル工業■のビ
ニルコンパウンド等、Ｅ−ＰＶＣとしては、例えばトー
ン■のリューロンＥ、積木化学工業■（７）ＰＶＣ−Ｖ
Ｅ等、ＥＶＡ＝ＰＶＣとしては、例えば積木化学工業■
のＰＶＣ−ＴＧ、日本ゼオン■のグラフトマー等が挙げ
られる。Here, examples of PVC used in the present invention include Vinicron manufactured by Mitsui Toatsu Chemical Industry (■) and vinyl compound manufactured by Riken Vinyl Industry (■); examples of E-PVC include, for example, Leuron E of Tone (■), Building Block Chemical Industry (■), etc. 7) PVC-V
E etc., EVA = PVC, for example, Block Chemical Industry■
Examples include PVC-TG from Nippon Zeon Corporation and graftomer from Nippon Zeon ■.
また、Ｅ−ＰＶＣ−ＧＭＡとしては、積木化学工業■の
トセエースーＡＰ等が挙げられる。Further, examples of E-PVC-GMA include Toce Ace-AP manufactured by Building Block Chemical Industry (■).
このＥ−ＰＶＣ−ＧＭＡは電線導体との密着性をより良
好にするためのもので、そして、その混合量を、上記Ｐ
ＶＣＳＥ−ＰＶＣ，ＥＶＡ−ＰＶＣまたはこれらの混合
物１００重量部に対して、２０〜６０重量部のとしたの
は、２０重量部未満では電線導体との十分な密着性改善
効果が得られないからであり、また６０重量部を越える
と電線導体との密着性が良過ぎて皮剥ぎ性（口出し性）
が低下するからである。This E-PVC-GMA is used to improve adhesion to the wire conductor, and the amount of E-PVC-GMA is
The reason why the amount is 20 to 60 parts by weight per 100 parts by weight of VCSE-PVC, EVA-PVC or a mixture thereof is because if it is less than 20 parts by weight, a sufficient effect of improving adhesion with the wire conductor cannot be obtained. Also, if it exceeds 60 parts by weight, the adhesion to the wire conductor is too good, making it difficult to peel off the wire.
This is because it decreases.
また、上記水密コンパウンドに、ＰＶＣに用いられてい
るのと同種の可塑剤を添加するのは、水密コンパウンド
がＰＶＣ絶縁体中の可塑剤を吸収し、絶縁体の劣化を早
める恐れがあるからである。Furthermore, the reason why the same type of plasticizer used for PVC is added to the above watertight compound is that the watertight compound may absorb the plasticizer in the PVC insulation and accelerate the deterioration of the insulation. be.
この可塑剤としては、例えばジオクチルフタレート、ジ
ノルマルオクチルフタレート、ジイソノニルフタレント
、ジノニルフタレート、トリオクチルトリメリテート等
が挙げられる。そして、その添加量を、水密コンパウン
ド１００重量部に対して、３０〜５０重量部としたのは
、３０未満ではＰＶＣ絶縁体側の劣化防止効果が殆ど期
待できず、５０重量部を越える量では増量によって期待
するだけの効果が得られないからである。Examples of the plasticizer include dioctyl phthalate, dinormal octyl phthalate, diisononyl phthalate, dinonyl phthalate, and trioctyl trimellitate. The amount added is set at 30 to 50 parts by weight per 100 parts by weight of the watertight compound.If it is less than 30 parts by weight, little effect on preventing deterioration of the PVC insulator can be expected, and if the amount exceeds 50 parts by weight, the amount should be increased. This is because the desired effect cannot be obtained.
なお、上記水密コンパウンドには、通常のＰＶＣに添加
される他の添加剤、例えば安定剤、老化防止剤等を必要
に応じて適量添加することができる。In addition, appropriate amounts of other additives added to ordinary PVC, such as stabilizers, anti-aging agents, etc., can be added to the above-mentioned watertight compound as necessary.
〈実施例〉
第１表に示した配合による種々の水密コンパウンドを用
いて、導体断面積６０ｍｍ２の水密ビニル絶縁電線を製
造した（実施例１〜７）。<Example> Using various watertight compounds having the formulations shown in Table 1, watertight vinyl insulated wires with a conductor cross-sectional area of 60 mm2 were manufactured (Examples 1 to 7).
また、比較のため、本発明条件を欠く水密コンパウンド
を用いた同種の水密ビニル絶縁電線を製造したく比較例
１〜４）。In addition, for comparison, Comparative Examples 1 to 4) were used to manufacture the same type of watertight vinyl insulated wire using a watertight compound lacking the conditions of the present invention.
そして、これらの各電線について、水密性、皮剥ぎ性、
絶縁体劣化の各特性試験を行い、その特性を調べた。な
お、各特性試験は以下の如くして行った。For each of these electric wires, check the watertightness, peelability,
We conducted various characteristic tests for insulation deterioration and investigated its characteristics. In addition, each characteristic test was performed as follows.
（１）水密性試験
長さ５０ｃｍの電線の片端に１．０ｋｇ／ｃｍ”の水圧
を２４時間加え、他端からの漏水の有無を８周べた。(1) Watertightness test A water pressure of 1.0 kg/cm'' was applied to one end of a 50 cm long electric wire for 24 hours, and the wire was run 8 times to check for water leakage from the other end.
（２）皮剥ぎ性試験
電線の絶縁体にナイフ等で切れ目を入れ、巾２５ｍｍで
円周方向の皮剥ぎを行い、水密コンパウンドの導体上へ
の残留の有無を調べた。(2) Stripping property test A cut was made in the insulator of the electric wire with a knife or the like, and the strip was peeled in the circumferential direction to a width of 25 mm, and the presence or absence of watertight compound remaining on the conductor was examined.
（３）絶縁体劣化試験
電線を１００°Ｃの空気中に１力月間放置し、絶縁体劣
化の有無を調べた。(3) Insulator deterioration test The electric wire was left in air at 100°C for one month, and the presence or absence of insulation deterioration was examined.
〈発明の効果〉
以上の説明から明らかなように本発明によれば、次のよ
うな優れた効果を有する水密ビニル絶縁電線が得られる
。<Effects of the Invention> As is clear from the above description, according to the present invention, a watertight vinyl insulated electric wire having the following excellent effects can be obtained.
（１）ＰＶＣ，Ｅ−ＰＶＣ，ＥＶＡ−ＰＶＣまたはこれ
らの混合物のようにＰＶＣ絶縁体と同等あるいは類似し
た性質を有する樹脂をベースポリマーとしているため、
ＰＶＣ絶縁体に対する水密コンパウンドの密着性は極め
て良く、良好な皮剥ぎ性（口出し性）が得られる。(1) Because the base polymer is a resin that has properties equivalent to or similar to PVC insulators, such as PVC, E-PVC, EVA-PVC, or a mixture thereof,
The adhesion of the watertight compound to the PVC insulator is extremely good, and good peelability (peelability) can be obtained.
（２）また、Ｅ−ＰＶＣ−ＧＭＡを使用しているため、
電線導体に対する水密コンパウンドの密着性が改善され
、良好な水密性が得られる。(2) Also, since E-PVC-GMA is used,
The adhesion of the watertight compound to the wire conductor is improved, resulting in good watertightness.
（３）水密コンパウンドには適量の可塑剤が添加しであ
るため、ＰＶＣ絶縁体の劣化を早めることもない。(3) Since an appropriate amount of plasticizer is added to the watertight compound, it does not accelerate the deterioration of the PVC insulation.
Claims (2)
ル共重合体（Ｅ−ＰＶＣ）、エチレン酢酸ビニル−塩化
ビニル共重合体（ＥＶＡ−ＰＶＣ）またはこれらの混合
物１００重量部と、エチレン−塩化ビニル−グリシジル
メタアクリレート共重合体（Ｅ−ＰＶＣ−ＧＭＡ）２０
〜６０重量部とからなる混和物を水密コンパウンドとし
た水密ビニル絶縁電線。(1) 100 parts by weight of polyvinyl chloride (PVC), ethylene-vinyl chloride copolymer (E-PVC), ethylene vinyl acetate-vinyl chloride copolymer (EVA-PVC), or a mixture thereof, and ethylene-vinyl chloride -Glycidyl methacrylate copolymer (E-PVC-GMA) 20
A watertight vinyl insulated electric wire made of a watertight compound made of a mixture consisting of ~60 parts by weight.
（ＰＶＣ）に用いられているのと同種の可塑剤を、当該
水密コンパウンド１００重量部に３０〜５０重量部添加
してなる請求項１記載の水密ビニル絶縁電線。(2) The watertight compound according to claim 1, wherein 30 to 50 parts by weight of a plasticizer of the same kind as that used for polyvinyl chloride (PVC) as an insulator is added to 100 parts by weight of the watertight compound. Watertight vinyl insulated wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63187737A JPH0237618A (en) | 1988-07-27 | 1988-07-27 | Watertight vinyl insulated electric wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63187737A JPH0237618A (en) | 1988-07-27 | 1988-07-27 | Watertight vinyl insulated electric wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0237618A true JPH0237618A (en) | 1990-02-07 |
Family
ID=16211310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63187737A Pending JPH0237618A (en) | 1988-07-27 | 1988-07-27 | Watertight vinyl insulated electric wire |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0237618A (en) |
-
1988
- 1988-07-27 JP JP63187737A patent/JPH0237618A/en active Pending
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