JPH03236108A - Power cable - Google Patents
Power cableInfo
- Publication number
- JPH03236108A JPH03236108A JP2031570A JP3157090A JPH03236108A JP H03236108 A JPH03236108 A JP H03236108A JP 2031570 A JP2031570 A JP 2031570A JP 3157090 A JP3157090 A JP 3157090A JP H03236108 A JPH03236108 A JP H03236108A
- Authority
- JP
- Japan
- Prior art keywords
- density polyethylene
- weight
- parts
- present
- cable
- 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
- 229920001903 high density polyethylene Polymers 0.000 claims abstract description 8
- 239000004700 high-density polyethylene Substances 0.000 claims abstract description 8
- 239000012212 insulator Substances 0.000 claims abstract description 7
- 239000011342 resin composition Substances 0.000 claims abstract description 4
- 229920001862 ultra low molecular weight polyethylene Polymers 0.000 claims abstract description 4
- 240000005572 Syzygium cordatum Species 0.000 abstract description 10
- 235000006650 Syzygium cordatum Nutrition 0.000 abstract description 10
- 238000002156 mixing Methods 0.000 abstract description 3
- 230000002349 favourable effect Effects 0.000 abstract 1
- 239000004708 Very-low-density polyethylene Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 229920001866 very low density polyethylene Polymers 0.000 description 6
- 239000004698 Polyethylene Substances 0.000 description 5
- -1 polyethylene Polymers 0.000 description 5
- 229920000573 polyethylene Polymers 0.000 description 4
- 238000004132 cross linking Methods 0.000 description 3
- 239000003431 cross linking reagent Substances 0.000 description 3
- 239000004703 cross-linked polyethylene Substances 0.000 description 3
- 229920003020 cross-linked polyethylene Polymers 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- XOUQAVYLRNOXDO-UHFFFAOYSA-N 2-tert-butyl-5-methylphenol Chemical compound CC1=CC=C(C(C)(C)C)C(O)=C1 XOUQAVYLRNOXDO-UHFFFAOYSA-N 0.000 description 2
- 229920010346 Very Low Density Polyethylene (VLDPE) Polymers 0.000 description 2
- 230000003712 anti-aging effect Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 150000002978 peroxides Chemical class 0.000 description 2
- KOMNUTZXSVSERR-UHFFFAOYSA-N 1,3,5-tris(prop-2-enyl)-1,3,5-triazinane-2,4,6-trione Chemical compound C=CCN1C(=O)N(CC=C)C(=O)N(CC=C)C1=O KOMNUTZXSVSERR-UHFFFAOYSA-N 0.000 description 1
- ODBCKCWTWALFKM-UHFFFAOYSA-N 2,5-bis(tert-butylperoxy)-2,5-dimethylhex-3-yne Chemical group CC(C)(C)OOC(C)(C)C#CC(C)(C)OOC(C)(C)C ODBCKCWTWALFKM-UHFFFAOYSA-N 0.000 description 1
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000007765 extrusion coating Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000005855 radiation Effects 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)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、ポリエチレン絶縁型カケープル、特に新し
い絶縁組成物を絶縁体として電気絶縁性能を向上した電
カケープルに関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a polyethylene insulating cable, and particularly to an electrical cable with improved electrical insulation performance using a new insulating composition as an insulator.
ポリエチレンの優れた絶縁性杢有し、しかも加工し易い
ことから、今日ではこれを用いた電力は一プルが広く用
いられており、特に架橋により熱的特性を向上した架橋
ポリエチレン（Ｘ Ｌ Ｐ Ｅ）電カケープルは電カケ
ープルの主流をなしているものである。Because polyethylene has excellent insulating properties and is easy to process, today it is widely used for power generation. ) Electric cables are the mainstream of electrical cables.
このＸＬＰＥ電カケ−プルの弱点は、同ケーブル特有の
現象として絶縁体中の水分と局部的異常電界によって水
トリーが発生し、ケーブルの絶縁性能を低下させる問題
がある。The weak point of this XLPE electrical cable is that water trees occur due to moisture in the insulator and a local abnormal electric field, which is a phenomenon unique to the cable, which deteriorates the insulation performance of the cable.
この水トリーを抑止することを目的として超低密度ポリ
エチレン（Ｖ Ｌ Ｄ Ｐ Ｅ）を絶縁体とした電カケ
ープルの試みが幾つか提案されている。In order to suppress this water tree, several attempts have been made to create electrical cables using very low density polyethylene (VLDPE) as an insulator.
しかしながらＶＬＤＰＥは固有の粘性及び弾性挙動から
押出加工性が悪く、スティックスリップ現象により押出
外観を著しく損ねるという問題があり、未だこの問題は
解決されていない。However, VLDPE has a problem in that it has poor extrusion processability due to its inherent viscosity and elastic behavior, and the stick-slip phenomenon significantly impairs the extruded appearance, and this problem has not yet been solved.
本発明は上記のような実情に鑑みてなされたもので、Ｖ
ＬＤＰＥの特徴を活かしつつＸＬＰＥの弱点である水ト
リーの問題を解決した電カケーフルに関するものである
。The present invention was made in view of the above-mentioned circumstances, and
This relates to an electric cable full that takes advantage of the characteristics of LDPE while solving the problem of water trees, which is a weakness of XLPE.
以下本発明の概要について述べれば、本発明は超低密度
ポリエチレン（ＶＬＤＰＥ）１００重量部に対して高密
度ポリエチレン５〜５０重量部を配合した電気絶縁性樹
脂組成物を絶縁体とすることを特徴とする電カケープル
である。To summarize the present invention as follows, the present invention is characterized in that the insulator is an electrically insulating resin composition in which 5 to 50 parts by weight of high-density polyethylene is blended with 100 parts by weight of very low density polyethylene (VLDPE). It is an electric cable.
〔作用］
本発明は上記のように超低密度ポリエチレン（ＶＬＤＰ
Ｅ）１００重量部に対して高密度ポリエチレンを５〜５
０重量部を配合した電気絶縁性樹脂組成物を絶縁体とす
るものであるので、電気特性が良く、加工性も良い外に
、水トリーの問題を発生しない電カケープルを提供する
ことができる。[Function] As described above, the present invention uses very low density polyethylene (VLDP).
E) 5 to 5 parts of high density polyethylene per 100 parts by weight
Since the electrically insulating resin composition containing 0 parts by weight is used as an insulator, it is possible to provide an electrical cable that not only has good electrical properties and good workability but also does not cause water tree problems.
本発明では特にＶＬＤＰＥに対する高密度ポリエチレン
の配合量が重要で、上記した範囲を外れてＶＬＤＰＥに
対する高密度ポリエチレンの１を５重量部未満とした場
合は、外観の改善の効果が不十分で、５０重量部を超え
た場合は水トリーの抑止の効果が不十分である。In the present invention, the blending amount of high-density polyethylene with respect to VLDPE is particularly important.If the amount of high-density polyethylene is outside the above range and is less than 5 parts by weight with respect to VLDPE, the effect of improving the appearance will be insufficient and 50% If the amount exceeds 1 part by weight, the effect of inhibiting water tree formation will be insufficient.
本発明の実施に当たり、耐熱性を向上するために架橋剤
を混入した組成物として用いることは従来のポリエチレ
ン同様に好ましい。この架橋剤の１例は、２・５ジメチ
ル−２・５ジ（ｔ−ブチルパーオキシ）ヘキシン−３、
α・α° ビス（１−ブチルパーオキシ）ジイソプロビ
ルヘンゼン、ジクミルパーオキサイド等の過酸化物系架
橋剤、トリアリルイソシアヌレート等のイソシアネート
系架橋助剤をあげることができる。その添加量はＶＬＤ
Ｐ２１００重量部に対し７１．５〜３．０重量部が好ま
しい。In carrying out the present invention, it is preferable to use a composition containing a crosslinking agent in order to improve heat resistance, as in the case of conventional polyethylene. One example of this crosslinking agent is 2,5 dimethyl-2,5 di(t-butylperoxy)hexyne-3,
Examples include peroxide crosslinking agents such as α·α° bis(1-butylperoxy)diisoprobylhenzene and dicumyl peroxide, and isocyanate crosslinking aids such as triallyl isocyanurate. The amount added is VLD
It is preferably 71.5 to 3.0 parts by weight based on 100 parts by weight of P2.
又放射線による架橋も可能である。Crosslinking by radiation is also possible.
本発明による組成物には老化防止剤を添加することがで
きるが、老化防止剤の代表例としては４４′−チオビス
（６−ターシャリブチル−３−メチルフェノール）、テ
トラキシ〔メチレン−３（３，５−ジーｔブチルー４ヒ
ドロキシーフェニル）プロピオネート］メタン等が使用
でき、その添加量はＶＬＤＰＥ１００重量部に対して０
．２〜０．３重量部程度が好ましい。Anti-aging agents can be added to the composition according to the invention, typical examples of anti-aging agents include 44'-thiobis(6-tert-butyl-3-methylphenol), tetraxy[methylene-3(3 , 5-di-t-butyl-4-hydroxy-phenyl) propionate] methane, etc. can be used, and the amount added is 0 to 100 parts by weight of VLDPE.
．． It is preferably about 2 to 0.3 parts by weight.
上記の配合の組成物をケーブルの導体の外部に押出被覆
し、架橋すれば本発明の電カケープルが得られる。The electric cable of the present invention can be obtained by extrusion coating the above-mentioned composition on the outside of the conductor of the cable and crosslinking it.
導体断面積１００ｍｍ”の導体上に、過酸化物を配合し
た本発明による組成物を３ｍｍ厚に押出被覆し、加熱架
橋して電カケープルを製造した。A conductor having a cross-sectional area of 100 mm was extruded and coated with the composition according to the present invention containing a peroxide to a thickness of 3 mm, and cross-linked by heating to produce an electric cable.
同時に本発明の組成範囲を外れた電カケープル及び現用
のＸＬＰＥ電カケ−プルを比較用として製造した。At the same time, an electric cable outside the composition range of the present invention and a currently used XLPE electric cable were manufactured for comparison.
これらのケーブルについて水トリー発生密度及び外観を
評価した結果は第１表に示すとおりである。The results of evaluating the water tree density and appearance of these cables are shown in Table 1.
第１表
注、ＰＥ：ポリエチレン
Ｏ：良
△：やや不良
×：不良
上記の比較試験から本発明によるものは、水トリー発生
密度及び外観のいずれも優れていることがわかる。Table 1 Note: PE: Polyethylene O: Good △: Slightly Poor ×: Poor From the above comparative tests, it can be seen that the product according to the present invention is excellent in both water tree generation density and appearance.
本発明は以上説明したように、超低密度ポリエチレン１
００重量部に対して高密度ポリエチレン５〜５０重量部
を配合したことにより、水トリー発生密度及び外観のい
ずれも優れている電カケープルを提供することができる
。As explained above, the present invention provides ultra-low density polyethylene 1
By blending 5 to 50 parts by weight of high-density polyethylene to 00 parts by weight, it is possible to provide an electric cable that is excellent in both water tree generation density and appearance.
Claims (1)
エチレン５〜５０重量部を配合した電気絶縁性樹脂組成
物を絶縁体とすることを特徴とする電力ケーブルA power cable characterized in that the insulator is an electrically insulating resin composition containing 5 to 50 parts by weight of high-density polyethylene to 100 parts by weight of ultra-low-density polyethylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2031570A JPH03236108A (en) | 1990-02-14 | 1990-02-14 | Power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2031570A JPH03236108A (en) | 1990-02-14 | 1990-02-14 | Power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03236108A true JPH03236108A (en) | 1991-10-22 |
Family
ID=12334839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2031570A Pending JPH03236108A (en) | 1990-02-14 | 1990-02-14 | Power cable |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03236108A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170365373A1 (en) * | 2016-06-17 | 2017-12-21 | Hitachi Metals, Ltd. | Insulated wire and cable |
-
1990
- 1990-02-14 JP JP2031570A patent/JPH03236108A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170365373A1 (en) * | 2016-06-17 | 2017-12-21 | Hitachi Metals, Ltd. | Insulated wire and cable |
| US10643762B2 (en) * | 2016-06-17 | 2020-05-05 | Hitachi Metals, Ltd. | Insulated wire and cable |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU715346B2 (en) | Tree resistant cable | |
| US6869995B2 (en) | Water tree resistant cable | |
| KR100727207B1 (en) | Cross-linked polyethylene having excellent inhibition of sweat-out and insulation properties | |
| JP4341203B2 (en) | Wire or cable | |
| US4092488A (en) | Connection or terminal portions for cross-linked polyethylene cables | |
| JPH10245456A (en) | Flame retardant polyolefin composition, and power cable using the composition | |
| JP2000086831A (en) | Electrical insulating composition and electric wire and cable | |
| JPH03236108A (en) | Power cable | |
| EP0952172B1 (en) | Tree resistant cable | |
| JP2012021146A (en) | Silane-crosslinked polyethylene, electric wire, and cable | |
| WO2002009123A1 (en) | Insulated power cable | |
| CA2427180A1 (en) | Tree resistant cable | |
| US20050148715A1 (en) | Water tree resistant cable | |
| JPH08111121A (en) | Electric insulating composition and electric wire/cable | |
| JP2001266650A (en) | Electric insulating composition and electric cable | |
| JPS63210150A (en) | Coating polymer composition | |
| JPH11255976A (en) | Resin composition for insulation and coated electric wire | |
| JPS6112738A (en) | Mixture for semiconductive layer | |
| JPH02121206A (en) | Insulating cable | |
| JPH04184810A (en) | Power cable | |
| JPH08111125A (en) | Electric wire/cable | |
| JPH10269855A (en) | Crosslinking polyethylene insulating wire or cable | |
| JPH10106354A (en) | Resin composition for insulation and coated electric wire | |
| JPH06251639A (en) | Water tree resistant cable | |
| JPH08199013A (en) | Semiconductive resin composition and crosslinked polyethylene insulated power cable |