JPS6046766B2 - Laminated insulating paper and OF cable using it - Google Patents
Laminated insulating paper and OF cable using itInfo
- Publication number
- JPS6046766B2 JPS6046766B2 JP3760979A JP3760979A JPS6046766B2 JP S6046766 B2 JPS6046766 B2 JP S6046766B2 JP 3760979 A JP3760979 A JP 3760979A JP 3760979 A JP3760979 A JP 3760979A JP S6046766 B2 JPS6046766 B2 JP S6046766B2
- Authority
- JP
- Japan
- Prior art keywords
- silyl
- insulating paper
- modified polyolefin
- nonwoven fabric
- cross
- 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
- 229920000098 polyolefin Polymers 0.000 claims description 31
- 239000004745 nonwoven fabric Substances 0.000 claims description 25
- -1 polyethylene Polymers 0.000 claims description 23
- 239000004698 Polyethylene Substances 0.000 claims description 15
- 239000000835 fiber Substances 0.000 claims description 15
- 229920000573 polyethylene Polymers 0.000 claims description 15
- 238000003475 lamination Methods 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 3
- 229920003043 Cellulose fiber Polymers 0.000 claims description 2
- 239000004020 conductor Substances 0.000 claims description 2
- 239000004744 fabric Substances 0.000 claims description 2
- 238000004804 winding Methods 0.000 claims description 2
- 239000011253 protective coating Substances 0.000 claims 1
- 239000000123 paper Substances 0.000 description 35
- 239000004743 Polypropylene Substances 0.000 description 8
- 229920001155 polypropylene Polymers 0.000 description 8
- 239000003054 catalyst Substances 0.000 description 6
- 238000009833 condensation Methods 0.000 description 6
- 230000005494 condensation Effects 0.000 description 6
- SCPYDCQAZCOKTP-UHFFFAOYSA-N silanol Chemical compound [SiH3]O SCPYDCQAZCOKTP-UHFFFAOYSA-N 0.000 description 6
- 238000004132 cross linking Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000003990 capacitor Substances 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 4
- 229920002678 cellulose Polymers 0.000 description 3
- 239000001913 cellulose Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- KWKXNDCHNDYVRT-UHFFFAOYSA-N dodecylbenzene Chemical compound CCCCCCCCCCCCC1=CC=CC=C1 KWKXNDCHNDYVRT-UHFFFAOYSA-N 0.000 description 3
- 229920001903 high density polyethylene Polymers 0.000 description 3
- 239000004700 high-density polyethylene Substances 0.000 description 3
- 239000002655 kraft paper Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000008188 pellet Substances 0.000 description 3
- 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 2
- 239000004594 Masterbatch (MB) Substances 0.000 description 2
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000012975 dibutyltin dilaurate Substances 0.000 description 2
- NKSJNEHGWDZZQF-UHFFFAOYSA-N ethenyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)C=C NKSJNEHGWDZZQF-UHFFFAOYSA-N 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000037303 wrinkles Effects 0.000 description 2
- 229920005601 base polymer Polymers 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
- Organic Insulating Materials (AREA)
- Insulating Bodies (AREA)
Description
【発明の詳細な説明】
本発明は、電気特性および耐油性に優れたラミネート
絶縁紙およびこれを使用したＯＦケーブルに関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a laminate insulating paper with excellent electrical properties and oil resistance, and an OF cable using the same.
近時、都市および工業地帯における電力需要の増加に
伴ない、５００ｋＶ級のＯＦケーブルの開発がすすめら
れている。Recently, as the demand for electric power increases in cities and industrial areas, the development of 500 kV class OF cables is being promoted.
かかる超高圧の０Ｆケーブルにおいては、従来のセルロ
ース紙単独から成る絶縁紙の使用では誘電損失が大きく
長距離の送電ケーブルとしては問題があるため、セルロ
ース紙にかえて、ポリエチレンやポリプロピレンのよう
なプラスチックフィルムを使用することが検討されてい
る。In such ultra-high voltage 0F cables, the use of conventional insulating paper made only of cellulose paper has a large dielectric loss and is problematic for long-distance power transmission cables, so instead of cellulose paper, plastics such as polyethylene or polypropylene are used. The use of film is being considered.
しかしながら、このような未架橋のプラスチックフィル
ムは、長時間絶縁油と組合せて使用した場合、しばしば
クレージングや亀裂の発生を見ることがあり、更に、油
流抵抗が大きく、油填に長時間を要するという欠点があ
つた。However, such uncrosslinked plastic films often show crazing and cracking when used in combination with insulating oil for long periods of time, and also have high oil flow resistance and require a long time to fill with oil. There was a drawback.
また最近、ポリプロピレンフィルムの両面にクラフト紙
を溶着させた絶縁紙も開発されているが、これも未架橋
のポリプロピレンフィルムとクラフト紙とを熱融着させ
ただけのものであるため、長期にわたつて絶縁油と接触
させた場合、ポリプロピレンが溶出して油流抵抗を増加
させたり、ポリプロピレンフィルムとセルロース紙間の
剥離強度が低下して、ケーブル屈曲時に両者が剥離し、
シワや座屈を発生させる惧れがあつた。Recently, insulating paper with kraft paper welded to both sides of a polypropylene film has also been developed, but since this is simply heat-sealed uncrosslinked polypropylene film and kraft paper, it will last for a long time. When the cable is brought into contact with insulating oil, polypropylene may be eluted, increasing oil flow resistance, and the peel strength between the polypropylene film and cellulose paper may decrease, causing both to separate when the cable is bent.
There was a risk that wrinkles and buckling would occur.
本発明は、かかる従来の欠点を解消すべくなされたもの
で、架橋されたシリル変性ポリオレフィンフィルムの少
くとも片面に、架橋されたシリル変性ポリオレフィン繊
維から成る不織布が溶着されて成る、電気特性および耐
油性に優れたラミネート絶縁紙およびこの絶縁紙を使用
した０Ｆケーブルを提供しようとするものである。以下
図面に示す実施例につ発明の詳細な説明する。The present invention has been made in order to eliminate such conventional drawbacks, and is a film with electrical properties and oil resistance that is obtained by welding a non-woven fabric made of cross-linked silyl-modified polyolefin fibers to at least one side of a cross-linked silyl-modified polyolefin film. The present invention aims to provide a laminated insulating paper with excellent properties and an 0F cable using this insulating paper. The invention will be described in detail below with reference to embodiments shown in the drawings.
第１図は、架橋されたシリル変性ポリオレフイ．ンフイ
ルム１の両面に、架橋されたシリル変性ポリオレフィン
繊維から成る不織布２ａ，２ｂが溶着されて成る本発明
のラミネート絶縁紙３の一実施例を示している。Figure 1 shows a cross-linked silyl-modified polyolefin. 1 shows an embodiment of the laminated insulating paper 3 of the present invention, in which nonwoven fabrics 2a and 2b made of crosslinked silyl-modified polyolefin fibers are welded to both sides of a film 1.
このような本発明のラミネート絶縁紙３は、例！えば第
２図に示すように、押出機４から押出されたシラノール
縮合触媒を含有する軟化状態にある未架橋のシリル変性
ポリオレフィンフィルム１の両面に、架橋されたシリル
変性ポリオレフィン繊維から成る不織布２ａ，２ｂを添
わせて加熱ロー・ル５により加圧溶着させ、次いで微量
の水分の存在下にシリル変性ポリオレフィンフィルム１
を架橋させることにより得られる。Such a laminated insulating paper 3 of the present invention is an example! For example, as shown in FIG. 2, a non-woven fabric 2a made of crosslinked silyl-modified polyolefin fibers is coated on both sides of a softened uncrosslinked silyl-modified polyolefin film 1 containing a silanol condensation catalyst extruded from an extruder 4. 2b and pressure welded using a heating roll 5, and then a silyl-modified polyolefin film 1 was attached in the presence of a trace amount of water.
Obtained by crosslinking.
上記のシリル変性ポリオレフィンフィルム１の厚さは４
０〜１２０μ程度が適当である。The thickness of the above silyl-modified polyolefin film 1 is 4
Approximately 0 to 120μ is appropriate.
また、架橋されたシリル変性ポリオレフィン繊維から成
る不織布２ａ，２ｂは、スパンボンド法その他の公知の
不織布の製造方法により、シラノール縮合触媒を含有す
る不織布を製造し、これを微量水分の存在下で架橋させ
ることにより得られる。In addition, the nonwoven fabrics 2a and 2b made of crosslinked silyl-modified polyolefin fibers are produced by producing a nonwoven fabric containing a silanol condensation catalyst by a spunbond method or other known nonwoven fabric production method, and then crosslinking this in the presence of a trace amount of water. It can be obtained by
なお、架橋は必ずしもラミネート加工前に行なう必要は
なく、ラミネート加工後例えばシリル変ノ性ポリオレフ
ィンフィルムの架橋時に同時に行なわせてもよい。Note that crosslinking does not necessarily need to be carried out before lamination processing, and may be carried out simultaneously after lamination processing, for example, when crosslinking a silyl-modified polyolefin film.
また、シラノール縮合触媒は、フィルム、不織布共に成
形前にベースポリマー中へ添加しておく必要はなく、例
えば、ラミネート加工後シラノール縮合触媒浴に浸漬し
て、その表面．から浸透拡散させるようにしてもよい。
本発明に使用する不織布は、繊維の太さが、０．１〜２
５μ、厚さが１０〜１００μ好ましくは１０〜６０Ｐ１
目付が２０〜６０ｙ／Ｒｆｌ程度のものが適しており、
スーパーカレンダー処理により、気密度を高めると共に
薄くすることにより、電気特性を更に向上させることも
できる。Furthermore, it is not necessary to add the silanol condensation catalyst to the base polymer before forming both the film and the nonwoven fabric; for example, after laminating, the silanol condensation catalyst can be immersed in a silanol condensation catalyst bath. It may also be permeated and diffused from the source.
The nonwoven fabric used in the present invention has a fiber thickness of 0.1 to 2.
5μ, thickness 10-100μ preferably 10-60P1
A fabric weight of about 20 to 60y/Rfl is suitable.
The electrical properties can be further improved by increasing the airtightness and reducing the thickness by supercalendering.
以上は、シリル変性ポリオレフィンフィルムの両面にシ
リル変性ポリオレフィン繊維から成る不織布を溶着させ
た例であるが、本発明はかかる実施例に限定されるもの
ではなく、第３図に示すように、一方のシリル変性ポリ
オレフィン繊維から成る不織布を、例えばコンデンサー
紙の如きセルロース繊維から成る絶縁紙６で置きかえる
ことも可能である。The above is an example in which a nonwoven fabric made of silyl-modified polyolefin fibers is welded to both sides of a silyl-modified polyolefin film, but the present invention is not limited to such an example. It is also possible to replace the nonwoven fabric made of silyl-modified polyolefin fibers with an insulating paper 6 made of cellulose fibers, such as condenser paper.
なお、第３図において第１図と同一の符号で示した部分
は、第１図の対応する構成材料から成ることを示してい
る。本発明に使用するシリル変性ポリオレフィンは、ポ
リオレフィンに、０．５〜１０ＰＨＲのビニルトリメト
キシシラン（ＶＴＭＯＳ）のようなトリアルコキシシラ
ンと０．０１〜２．０ＰＨＲのジクミルパーオキサイド
（ＤＣＰ）のようなラジカル発生剤とを、押出機のよう
な加熱混練機能を有する装置に供給して約２００℃の温
度で加熱混練することにより得られる。In addition, in FIG. 3, parts indicated by the same reference numerals as in FIG. 1 indicate that they are made of the corresponding constituent materials in FIG. 1. The silyl-modified polyolefin used in the present invention includes a polyolefin, a trialkoxysilane such as vinyltrimethoxysilane (VTMOS) with 0.5 to 10 PHR, and dicumyl peroxide (DCP) with 0.01 to 2.0 PHR. and a radical generator are supplied to a device having a heating kneading function, such as an extruder, and heated and kneaded at a temperature of about 200°C.
このようにして得られるシリル変性ポリオレフィンは、
ジブチル錫ジラウレート（ＤＢＴＤＴ）のようなシラノ
ール縮合触媒の存在下に常温でも微量の水分と反応して
架橋する。The silyl-modified polyolefin obtained in this way is
In the presence of a silanol condensation catalyst such as dibutyltin dilaurate (DBTDT), it reacts with a trace amount of moisture even at room temperature and crosslinks.
なお、本発明に使用するシリル変性ポリオレフインとし
ては、高密度ポリエチレンやポリプロピレンのように結
晶化度の高いポリオレフィンをベースとするものが適し
ている。The silyl-modified polyolefin used in the present invention is preferably one based on a polyolefin with a high degree of crystallinity, such as high-density polyethylene or polypropylene.
このようにして得られるラミネート絶縁紙は、その全部
又は大部分が電気特性の良好なポリオレフィンで構成さ
れ、しかもこのポリオレフィンは各層間が溶着した状態
て架橋されているので電気特性、機械的特性および耐油
性に優れており、これを第４図に示すように、導体７上
・＼、内部半導電層８、絶縁紙巻回層９、外部半導電層
１０、金，属テープ遮蔽層１１、抑え巻き層１２および
金属コルゲートシース１３を順に設けると共に絶縁油を
充填して成る０Ｆケーブル１４の前記絶縁紙巻回層９の
形成に使用した場合、誘電率、誘電正接の経時変化が少
なく、絶縁破壊強度の高い０Ｆケ，ーブルが得られる。The laminated insulating paper obtained in this way is composed entirely or mostly of polyolefin with good electrical properties, and since this polyolefin is crosslinked with each layer welded, it has excellent electrical properties, mechanical properties, and It has excellent oil resistance, and as shown in FIG. When used to form the insulating paper wound layer 9 of the 0F cable 14, which is formed by sequentially providing the winding layer 12 and the metal corrugated sheath 13 and filling it with insulating oil, the dielectric constant and dielectric loss tangent change over time are small, and the dielectric breakdown strength is low. A high 0F cable can be obtained.
次に実施例について記載する。実施例１〜２
〔シリル変性ポリオレフィン不織布の製造〕密度０．９
６０ｙ／ｃ（、メルトインデックス５．０ｙ／１１０１
１１１ｎを有する高密度ポリエチレン（昭和油化（株）
製 ＳｈＯｌｅｘ６Ｏ５Ｏ） とＶＴＭＯＳ２ＰＨＲＤ
ＣＰＯ．ｌ５ｌ）ＨＲとをタンブラー中で混合し、これ
を押出機に供給して１８０〜１８５゜Ｃて紐状に押出し
、次いでペレット状に成形した。Next, examples will be described. Examples 1-2 [Manufacture of silyl-modified polyolefin nonwoven fabric] Density 0.9
60y/c (, melt index 5.0y/1101
High-density polyethylene with 111n (Showa Yuka Co., Ltd.)
ShOlex6O5O) and VTMOS2PHRD
C.P.O. 15l) HR were mixed in a tumbler, fed to an extruder, extruded at 180-185°C into a string, and then molded into pellets.
このようにして得ら〉れたシリル変性ポリエチレンのペ
レットとＤＢＴＤＬＯ．ｌ５ＰＨＲ含有する高密度ポリ
エチレン（ＳｈＯｌｅｘ６Ｏ５Ｏ）をベースとするマス
ターバッチとを９５：５の割合で混合したものを使用し
てスパンボンド法によりノーバインダーの、繊維の太さ
５１８μ、厚さ５０μ、目付３０ｙ／イのシリル変性ポ
リエチレン不織布を得、次いで、これを湿度１００％、
１００℃の雰囲気中に３０分間放置して架橋させた。The silyl-modified polyethylene pellets thus obtained and DBTDLO. Using a masterbatch based on high-density polyethylene (ShOlex6O5O) containing 15PHR mixed at a ratio of 95:5, a binder-free fiber with a thickness of 518μ, a thickness of 50μ, and a basis weight of 30y was produced using a spunbond method. A silyl-modified polyethylene nonwoven fabric of /a was obtained, and then it was heated to 100% humidity.
It was left to stand in an atmosphere at 100° C. for 30 minutes to cause crosslinking.
シリル変性ポリエチレン不織布の製造に使用したシリル
変性ポリエチレンのペレットとマスターバッチとの混合
物を使用して、第２図に示した方法により、シリル変性
ポリエチレンフィルムを製造しこれに前記の架橋された
シリル変性ポリエチレン繊維から成る不織布およびコン
デンサー紙を溶着させて、ラミネート絶縁紙を得た。A silyl-modified polyethylene film was produced by the method shown in Fig. 2 using a mixture of silyl-modified polyethylene pellets and a masterbatch used in the production of the silyl-modified polyethylene nonwoven fabric. A laminated insulating paper was obtained by welding a nonwoven fabric made of polyethylene fibers and a capacitor paper.
得られたラミネート絶縁紙の特性を第１表に示す。Table 1 shows the properties of the obtained laminated insulating paper.
ｒ′
Ｒ．
＃１ ：架橋シリル変性ポリエチレン不織布／架橋
シリル変性ポリエチレンフィルム／架橋シリ ル変性
ポリエチレン不織布＝５０μ／５０μ／５０μ＃２ ：
架橋シリル変性ポリエチレン不織布／架橋 シリル変
性ポリエチレンフィルム／コンデン サー紙＝５０μ
／５０μ／５０μ＃３ ：コンデンサー紙／架橋シリル
変性ポリエチ レン不織布／コンデンサー紙＝５０μ
／５０μ／ ５０ｐ＃４ ：クラフト絶縁紙＝１５０μ
次に、実施例１のラミネート絶縁紙を一定温度に保持
したハード型ドデシルベンゼツ中に浸漬してその溶解量
を測定した。r' R. #1: Crosslinked silyl-modified polyethylene nonwoven fabric/crosslinked
Silyl-modified polyethylene film/crosslinked silyl-modified polyethylene nonwoven fabric = 50μ/50μ/50μ#2:
Cross-linked silyl-modified polyethylene nonwoven fabric/cross-linked silyl-modified polyethylene film/condenser paper = 50μ
/50μ/50μ#3: Capacitor paper/Crosslinked silyl-modified polyethylene nonwoven fabric/Capacitor paper = 50μ
/50μ/50p#4: Kraft insulating paper = 150μ Next, the laminated insulating paper of Example 1 was immersed in hard dodecyl benzene maintained at a constant temperature, and the amount dissolved was measured.
測定結果を第５図に示す。 また１００℃のハード型ド
デシルベンゼン５００ｃｃ中にラミネート絶縁紙１００
ｙを浸漬した後のハード型ドデシルベンゼンの粘度を第
２表に示す。The measurement results are shown in Figure 5. In addition, 100 ml of laminated insulating paper was placed in 500 cc of hard dodecylbenzene at 100°C.
Table 2 shows the viscosity of hard dodecylbenzene after dipping.
なお第５図および第２表中の比較例３は、厚さ５０μの
ポリプロピレンフィルムの両面へ厚さ５０μのポリプロ
ピレン不織布を溶着させたラミネート絶縁紙であつて、
本発明との比較のために示したものである。実施例３
実施例１で得たラミネート絶縁紙を使用して、第２図に
示した構造を有する２７５ｋＶ１１×２０００Ｔ！Ｕｎ
２の０Ｆケーブルを製造した。Comparative Example 3 in FIG. 5 and Table 2 is a laminated insulating paper in which a 50 μm thick polypropylene nonwoven fabric is welded to both sides of a 50 μm thick polypropylene film.
This is shown for comparison with the present invention. Example 3 Using the laminated insulating paper obtained in Example 1, a 275 kV 11 x 2000 T! Un
Two 0F cables were manufactured.
この０Ｆケーブルから第６図に示すような油圧試験試料
を作成しケーブルの油流抵抗を測定した。A hydraulic test sample as shown in FIG. 6 was prepared from this 0F cable, and the oil flow resistance of the cable was measured.
図において１５ａ，１５ｂは硬化性樹脂モールド、１６
は油通路、１７ａ，１７ｂは、絶縁油の仕切、１８はメ
スシリンダーである。なお、油流抵抗Ｚは次式により求
めた。In the figure, 15a and 15b are curable resin molds, 16
1 is an oil passage, 17a and 17b are insulating oil partitions, and 18 is a measuring cylinder. Note that the oil flow resistance Z was determined by the following formula.
〔但し、１：ケーブル有効長
ｐ：油圧
Ｑ：流量
η：粘度
ｒ１：導体径
Ｒ２：絶縁体外径〕
測定結果は第３表の通りである
なお、表中比較例４は、比較例３のラミネート絶縁紙を
使用して、製造した実施例３と同一構造の０Ｆケーブル
であつて、本発明との比較のために示したものである。[However, 1: Cable effective length p: Oil pressure Q: Flow rate η: Viscosity r1: Conductor diameter R2: Insulator outer diameter] The measurement results are as shown in Table 3. In the table, Comparative Example 4 is the same as Comparative Example 3. This is an 0F cable manufactured using laminated insulating paper and having the same structure as Example 3, and is shown for comparison with the present invention.
以上の実施例からも明らかなように本発明のラミネート
絶縁紙は、誘電率・Ｔａｎδの値が著しく低く、絶縁破
壊強度が大であり、更に耐油性にも優れており、これを
０Ｆケーブルの絶縁層に使用することにより送電容量を
増大させ、かつ絶縁破壊特性の優れた０Ｆケーブルを得
ることができる。また、本発明のラミネート絶縁紙は耐
油性にも優れているので、絶縁油の粘度上昇が小さく短
絡等によるケーブルの異常温度上昇時にも絶縁油９が迅
速に移動して絶縁破壊の発生を抑止する作用をなし、ま
たラミネート絶縁紙の層間が剥離して、ケーブルの屈曲
時にシワや座屈を発生させるようなこともない。なお、
本発明のラミネート絶縁紙の用途は、ＳＯＦケーブルに
限定されるものではなく、コンデンサー、変圧器その他
の油浸電気機器用の絶縁紙としても有利に使用すること
ができる。As is clear from the above examples, the laminated insulating paper of the present invention has extremely low dielectric constant/Tanδ values, high dielectric breakdown strength, and excellent oil resistance. By using it in the insulating layer, it is possible to increase the power transmission capacity and obtain an 0F cable with excellent dielectric breakdown characteristics. Furthermore, since the laminated insulating paper of the present invention has excellent oil resistance, the increase in viscosity of the insulating oil is small, and even when the cable temperature rises abnormally due to short circuits, the insulating oil 9 moves quickly and prevents the occurrence of dielectric breakdown. Moreover, there is no possibility that the layers of the laminated insulating paper will peel off and cause wrinkles or buckling when the cable is bent. In addition,
The use of the laminated insulating paper of the present invention is not limited to SOF cables, but can also be advantageously used as insulating paper for capacitors, transformers, and other oil-immersed electrical equipment.
第１図は、本発明のラミネート絶縁紙の一実施ノ例を示
す横断面図、第２図はその製造方法を示す説明図、第３
図は、本発明のラミネート絶縁紙の他の実施例を示す横
断面図、第４図は、本発明の０Ｆケーブルの一実施例を
示す横断面図、第５図は本発明のラミネート絶縁紙の絶
縁油に対する溶解量を示すグラフ、第６図は、本発明の
０Ｆケーブルの油流抵抗測定試料を示す側面図である。FIG. 1 is a cross-sectional view showing one embodiment of the laminated insulating paper of the present invention, FIG. 2 is an explanatory diagram showing the manufacturing method thereof, and FIG.
The figure is a cross-sectional view showing another embodiment of the laminated insulating paper of the present invention, FIG. 4 is a cross-sectional view showing one embodiment of the 0F cable of the present invention, and FIG. 5 is a cross-sectional view of the laminated insulating paper of the present invention. FIG. 6 is a side view showing an oil flow resistance measurement sample of the 0F cable of the present invention.
Claims (1)
くとも片面に架橋されたシリル変性ポリオレフィン繊維
から成る不織布が溶着されて成ることを特徴とするラミ
ネート絶縁紙。 ２ シリル変性ポリオレフィンは、シリル変性ポリエチ
レンから成る特許請求の範囲第１項記載のラミネート絶
縁紙。 ３ 不織布は、繊維太さ０．１〜２５μ、厚さ１０〜１
００μ、目付２０〜６０ｇ／ｍ＾２であり、ラミネート
後の全体の厚さが１００〜２５０μである特許請求の範
囲第１項又は第２項記載のラミネート絶縁紙。 ４ 架橋されたシリル変性ポリオレフィン繊維から成る
不織布は、架橋されたシリル変性ポリオレフィンフィル
ムの両面に溶着されて成る特許請求の範囲第１項乃至第
３項のいずれか１項記載のラミネート絶縁紙。 ５ 架橋されたシリル変性ポリオレフィン繊維から成る
不織布は、架橋されたシリル変性ポリオレフィンフィル
ムの片面に貼着され、他の片面には、セルロース繊維か
ら成る絶縁紙が貼着されて成る特許請求の範囲第１項乃
至第３項のいずれか１項記載のラミネート絶縁紙。 ６ 導体上へ、半導電層、絶縁紙巻回層、外部半導電層
、金属テープ遮蔽層および金属保護被覆を順に設けると
共に、前記絶縁紙巻回層へ絶縁油を含浸させて成るケー
ブルにおいて、前記絶縁紙巻回層は、架橋されたシリル
変性ポリオレフィンフィルムの少くとも片面に、架橋さ
れたシリル変性ポリオレフィン繊維から成る不織布を溶
着させたラミネート絶縁紙の纒巻により形成されて成る
ことを特徴とするＯＦケーブル。 ７ シリル変性ポリオレフィンは、シリル変性ポリエチ
レンから成る特許請求の範囲第６項記載のＯＦケーブル
。 ８ 不織布は繊維太さ０．１〜２５μ、厚さ１０〜１０
０μ、目付２０〜６０ｇ／ｍ＾２であり、ラミネート後
の全体の厚さが１００〜２５０μである特許請求の範囲
第６項又は第７項記載のＯＦケーブル。[Scope of Claims] 1. A laminated insulating paper characterized in that a nonwoven fabric made of crosslinked silyl-modified polyolefin fibers is welded to at least one side of a cross-linked silyl-modified polyolefin film. 2. The laminated insulating paper according to claim 1, wherein the silyl-modified polyolefin is made of silyl-modified polyethylene. 3 The nonwoven fabric has a fiber thickness of 0.1 to 25μ and a thickness of 10 to 1
3. The laminated insulating paper according to claim 1 or 2, which has a basis weight of 20 to 60 g/m^2 and a total thickness of 100 to 250 μ after lamination. 4. The laminated insulating paper according to any one of claims 1 to 3, wherein the nonwoven fabric made of cross-linked silyl-modified polyolefin fibers is welded to both sides of a cross-linked silyl-modified polyolefin film. 5 A nonwoven fabric made of cross-linked silyl-modified polyolefin fibers is attached to one side of a cross-linked silyl-modified polyolefin film, and an insulating paper made of cellulose fibers is attached to the other side. The laminated insulating paper according to any one of items 1 to 3. 6. A cable comprising a semi-conductive layer, an insulating paper-wrapped layer, an external semi-conductive layer, a metal tape shielding layer and a metal protective coating on a conductor in this order, and wherein the insulating paper-wound layer is impregnated with insulating oil. An OF cable characterized in that the paper-wound layer is formed by winding a laminated insulating paper in which a nonwoven fabric made of cross-linked silyl-modified polyolefin fibers is welded to at least one side of a cross-linked silyl-modified polyolefin film. . 7. The OF cable according to claim 6, wherein the silyl-modified polyolefin is made of silyl-modified polyethylene. 8 The nonwoven fabric has a fiber thickness of 0.1 to 25 μm and a thickness of 10 to 10 μm.
The OF cable according to claim 6 or 7, which has a fabric weight of 20 to 60 g/m^2 and a total thickness of 100 to 250 μ after lamination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3760979A JPS6046766B2 (en) | 1979-03-28 | 1979-03-28 | Laminated insulating paper and OF cable using it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3760979A JPS6046766B2 (en) | 1979-03-28 | 1979-03-28 | Laminated insulating paper and OF cable using it |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55130016A JPS55130016A (en) | 1980-10-08 |
| JPS6046766B2 true JPS6046766B2 (en) | 1985-10-17 |
Family
ID=12502322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3760979A Expired JPS6046766B2 (en) | 1979-03-28 | 1979-03-28 | Laminated insulating paper and OF cable using it |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6046766B2 (en) |
-
1979
- 1979-03-28 JP JP3760979A patent/JPS6046766B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS55130016A (en) | 1980-10-08 |
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