JPS6346982Y2 - - Google Patents
Info
- Publication number
- JPS6346982Y2 JPS6346982Y2 JP1981085937U JP8593781U JPS6346982Y2 JP S6346982 Y2 JPS6346982 Y2 JP S6346982Y2 JP 1981085937 U JP1981085937 U JP 1981085937U JP 8593781 U JP8593781 U JP 8593781U JP S6346982 Y2 JPS6346982 Y2 JP S6346982Y2
- Authority
- JP
- Japan
- Prior art keywords
- layer
- fire
- ceramic paper
- insulating layer
- aluminum hydroxide
- 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
- 239000000919 ceramic Substances 0.000 claims description 20
- 230000009970 fire resistant effect Effects 0.000 claims description 11
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 9
- 239000004927 clay Substances 0.000 claims description 6
- 239000000454 talc Substances 0.000 claims description 6
- 229910052623 talc Inorganic materials 0.000 claims description 6
- 239000004020 conductor Substances 0.000 claims description 5
- 239000000835 fiber Substances 0.000 claims description 5
- 239000010419 fine particle Substances 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 4
- 239000003063 flame retardant Substances 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 239000010445 mica Substances 0.000 description 3
- 229910052618 mica group Inorganic materials 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000002378 acidificating effect Effects 0.000 description 2
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 150000003891 oxalate salts Chemical class 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- MXRIRQGCELJRSN-UHFFFAOYSA-N O.O.O.[Al] Chemical compound O.O.O.[Al] MXRIRQGCELJRSN-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007765 extrusion coating Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Landscapes
- Insulating Bodies (AREA)
- Insulated Conductors (AREA)
Description
【考案の詳細な説明】
本考案は、耐火性絶縁電線に関するものであ
る。[Detailed Description of the Invention] The present invention relates to a fire-resistant insulated wire.
従来の、この種絶縁電線としては、絶縁層に高
度に難燃化した絶縁物の押出被覆を用いたもの、
絶縁層の内外の少なくとも一方に、マイカテープ
の巻付け層を設けたもの、或いはこれら両者を適
宜組合わせて設けてなるものが一般である。 Conventional insulated wires of this type include those that use an extrusion coating of a highly flame-retardant insulating material as the insulating layer,
Generally, a mica tape layer is wound on at least one of the inside and outside of the insulating layer, or both are combined appropriately.
然るに、絶縁物を高度に難燃化するには、高度
な配合技術が必要であると共に、コストが高くな
る等の問題があり、又、マイカテープには電線製
造時、マイカ層が割れ易い、剥離し易い問題があ
り、従つて、従来のこの種絶縁電線には、これら
の問題に伴つて起こる諸々の問題が内在されてい
た。 However, in order to make the insulator highly flame retardant, advanced compounding technology is required and there are problems such as increased costs.Moreover, mica tape has a mica layer that is easily broken during the manufacturing of electric wires. There is a problem of easy peeling, and therefore, conventional insulated wires of this type have various problems associated with these problems.
本考案の目的は前記した従来技術の欠点を解消
し、しかもその耐火性能においては従来のものと
殆ど変わることのない有用なる耐火性絶縁電線を
提供することにある。 The object of the present invention is to provide a useful fire-resistant insulated wire that eliminates the drawbacks of the prior art described above and whose fire-resistant performance is almost the same as that of the prior art.
即ち、本考案の要旨は、絶縁層の内外側の少な
くとも一方に、パルプ繊維のフイブリル構造の中
に水酸化アルミニウム、クレー、タルクの微粒子
の１種又は２種以上を50〜90重量％均一に吸着さ
せてなるセラミツクス紙の層を設けた点にある。 That is, the gist of the present invention is that one or more of fine particles of aluminum hydroxide, clay, and talc are uniformly added in an amount of 50 to 90% by weight in the fibrillar structure of pulp fibers on at least one of the inside and outside of the insulating layer. The point is that a layer of ceramic paper is provided that is adsorbed.
尚、パルプ繊維の中に吸着させる上記無機物質
として、特に水酸化アルミニウム、クレー、タル
クに限定した理由は、次の通りである。即ち、無
機物質としては、例えば金属炭酸塩、金属修酸塩
の如きものもあるが、これらのものを用いた場合
には、電線を酸性雰囲気下で使用した時、金属炭
酸塩、金属修酸塩が化学反応を起こし、このため
セラミツクス紙層の絶縁抵抗を低下させたり、或
いは耐熱性を低下させたりする恐れがある。とこ
ろが、水酸化アルミニウム、クレー、タルクの場
合には、このような問題がない。以上の点に鑑
み、本考案においては、その使用を水酸化アルミ
ニウム、クレー、タルクに限定した。 The reason why the inorganic substances to be adsorbed into the pulp fibers are specifically limited to aluminum hydroxide, clay, and talc is as follows. In other words, there are inorganic substances such as metal carbonates and metal oxalates, but when these substances are used, metal carbonates and metal oxalates occur when the wire is used in an acidic atmosphere. The salt may cause a chemical reaction, which may reduce the insulation resistance or heat resistance of the ceramic paper layer. However, aluminum hydroxide, clay, and talc do not have this problem. In view of the above points, in the present invention, the use thereof is limited to aluminum hydroxide, clay, and talc.
又、セラミツクス紙中の水酸化アルミニウム、
クレー、タルクの比率を、50〜90重量％とした理
由は、次の通りである。即ち、これが50重量％を
下回ると所定の耐火性が期待できなくなり、又こ
れが90重量％を上回るとセラミツクス紙層の可撓
性が損なわれ、延いては電線全体の可撓性が損な
われる恐れがあり、結局、これら諸々の特性を考
慮すると、実用と前記の範囲が最適と言う訳であ
る。 Also, aluminum hydroxide in ceramic paper,
The reason why the ratio of clay and talc was set to 50 to 90% by weight is as follows. In other words, if this is less than 50% by weight, the specified fire resistance cannot be expected, and if this is more than 90% by weight, the flexibility of the ceramic paper layer may be impaired, and the flexibility of the entire electric wire may be impaired. In the end, considering these various characteristics, the above-mentioned range is considered to be optimal for practical use.
次に、添付図面により本考案耐火性絶縁電線の
幾つかの実施例を説明すると、第１図は、パルプ
繊維のフイブリル構造の中に水酸化アルミニウム
の微粒子を均一に吸着させるようにして抄紙した
セラミツクス紙の巻き付け層１をゴム・プラスチ
ツク絶縁層２の周上に設けてなるもの、第２図
は、上記セラミツクス紙の巻き付け層１を絶縁層
２の内側に設けてなるもの、第３図は上記セラミ
ツクス紙の巻き付け層１を絶縁層２の内外両側に
設けてなるものである。尚、３は導体である。 Next, some examples of the fire-resistant insulated wire of the present invention will be explained with reference to the accompanying drawings. Figure 1 shows a paper made in such a way that fine particles of aluminum hydroxide are uniformly adsorbed into the fibrillar structure of pulp fibers. The one in which a wrapped layer 1 of ceramic paper is provided on the circumference of a rubber/plastic insulating layer 2, FIG. 2 shows the one in which the wrapped layer 1 of ceramic paper is provided inside the insulating layer 2, and the one in FIG. The wrapping layer 1 of the ceramic paper described above is provided on both the inner and outer sides of the insulating layer 2. Note that 3 is a conductor.
尚、本考案者は、上記本実施例耐火性絶縁電線
の耐火性能を確認するために、第１図のもの数本
について、UL規格に規定されたVW−１に基づ
いて難燃試験を試みたところ、電線はいずれも０
〜５秒で消火すると言うきわめて良好な結果を得
た。 In addition, in order to confirm the fire-resistance performance of the fire-resistant insulated wires of this example, the present inventor attempted a flame retardant test on several of the wires shown in Figure 1 based on VW-1 specified in the UL standard. However, all the wires were 0.
Very good results were obtained, with the fire being extinguished in ~5 seconds.
このように本実施例耐火性絶縁電線によれば、
非常に優れた耐火性能を奏し得る訳であるが、も
とよりこれは絶縁層の内外側の少なくとも一方に
前記セラミツクス紙の巻き付け層を設けているこ
とにほかならない。 As described above, according to the fire-resistant insulated wire of this example,
This is because the ceramic paper wrap layer is provided on at least one of the inner and outer sides of the insulating layer.
前記セラミツクス紙は、高充填（充填比率50〜
90重量％）の水酸化アルミニウムで構成されてい
るため、殆ど不燃であり、このためこれを用いる
事により高度に難燃化した絶縁電線が得られるも
のである。又、前記セラミツクス紙中の水酸化ア
ルミニウムの粉末が、1200〜1300℃の高温度で焼
結することが、本実施例絶縁電線の耐火性能を一
層高めていると考えられる。 The ceramic paper is highly filled (filling ratio 50~
Since it is composed of aluminum hydroxide (90% by weight), it is almost nonflammable, and by using it, highly flame-retardant insulated wires can be obtained. It is also believed that the fact that the aluminum hydroxide powder in the ceramic paper is sintered at a high temperature of 1200 to 1300°C further improves the fire resistance of the insulated wire of this example.
このため、前記セラミツクス紙の層を絶縁層の
外側に設けた場合には、絶縁層が直接火災にさら
される機会がなくなり、従つて、火災下にあつて
も電線の絶縁性は具合良く保持されることが期待
でき、又、前記セラミツクス紙の層を絶縁層の内
側に設けた場合には、火災にさらされて絶縁層が
燃焼してしまつたとしても、前記セラミツクスの
層の存在によつて電線の絶縁性はやはりかなり保
持されることが期待できる。加えて、本実施例耐
火性絶縁電線によれば、パルプ繊維のフイブリル
構造の中に水酸化アルミニウムの微粒子を均一に
吸着させ、抄紙させたもので、通常の紙と同様な
可撓性及び強さを持つているセラミツクス紙の層
を設けることによつて構成されてなることから、
本質的には通常の電線製造と何ら変りない形で構
造できると言う便利さがある。 For this reason, when the ceramic paper layer is provided outside the insulating layer, there is no chance that the insulating layer will be directly exposed to fire, and therefore the insulation properties of the wires will be well maintained even under fire. Furthermore, if the ceramic paper layer is provided inside the insulating layer, even if the insulating layer burns due to exposure to fire, the presence of the ceramic paper layer will prevent the insulating layer from burning. It can be expected that the insulation properties of the wires will still be maintained to a considerable extent. In addition, according to the fire-resistant insulated wire of this example, fine particles of aluminum hydroxide are uniformly adsorbed into the fibrillar structure of pulp fibers to make paper, and it has the same flexibility and strength as ordinary paper. Because it is constructed by providing a layer of ceramic paper that has a
Essentially, it has the advantage of being able to be constructed in a way that is no different from normal electric wire manufacturing.
このように、本考実耐火性絶縁電線は、前記し
た従来技術の欠点を解消し、しかもその耐火性能
においては従来のものに比べても何ら引けを取る
ことのないものであり、又、酸性雰囲気中での使
用も可能であり、更に又可撓性についても問題な
くその実用性はきわめて高い。 Thus, the present fire-resistant insulated wire overcomes the drawbacks of the prior art described above, and is in no way inferior to the prior art in terms of fire resistance. It can also be used in an acidic atmosphere, and has no problems with flexibility, making it highly practical.
以上本考案耐火性絶縁電線の実施例並びにその
効果について説明したが、更に他の応用例として
次のものが考えられる。 Although the embodiments and effects of the fire-resistant insulated wire of the present invention have been described above, the following can be considered as further application examples.
(1) 導体上に前記セラミツクス紙の層を設け、更
にその上にフツ素系コーテイング材をコーテイ
ングしてなるもの。(1) A layer of ceramic paper is provided on a conductor, and a fluorine-based coating material is further coated on top of the ceramic paper layer.
(2) 前記セラミツクス紙と金属テープとよりなる
ラミネートテープの層を設けたもの。(2) A layer of laminated tape made of the ceramic paper and metal tape.
(3) 前記セラミツクス紙と合成樹脂層とよりなる
ラミネートテープの層を設けたもの。(3) A layer provided with a laminated tape made of the ceramic paper and a synthetic resin layer.
第１〜３図は、いずれも本考案耐火性絶縁電線
の実施例を示す説明図である。
１：セラミツクス紙の巻き付け層、２：ゴム・
プラスチツク絶縁層、３：導体。
1 to 3 are explanatory diagrams showing examples of the fire-resistant insulated wire of the present invention. 1: Wrapping layer of ceramic paper, 2: Rubber
Plastic insulation layer, 3: conductor.
Claims (1)
るものにおいて、上記絶縁層の内外側の少なくと
も一方に、パルプ繊維のフイブリル構造の中に水
酸化アルミニウム、クレー、タルクの微粒子の１
種又は２種以上を50〜90重量％均一に吸着させて
なるセラミツクス紙の層を設けてなることを特徴
とする耐火性絶縁電線。 In a conductor in which a rubber/plastic insulating layer is provided on a conductor, at least one of the inner and outer sides of the insulating layer is coated with fine particles of aluminum hydroxide, clay, or talc in a fibrillar structure of pulp fibers.
A fire-resistant insulated wire comprising a layer of ceramic paper on which 50 to 90% by weight of a species or two or more species are uniformly adsorbed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981085937U JPS6346982Y2 (en) | 1981-06-10 | 1981-06-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981085937U JPS6346982Y2 (en) | 1981-06-10 | 1981-06-10 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57197112U JPS57197112U (en) | 1982-12-14 |
| JPS6346982Y2 true JPS6346982Y2 (en) | 1988-12-05 |
Family
ID=29881189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1981085937U Expired JPS6346982Y2 (en) | 1981-06-10 | 1981-06-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6346982Y2 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5028271U (en) * | 1973-07-06 | 1975-04-01 |
-
1981
- 1981-06-10 JP JP1981085937U patent/JPS6346982Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57197112U (en) | 1982-12-14 |
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