JPS63193407A - Fireproof wire - Google Patents
Fireproof wireInfo
- Publication number
- JPS63193407A JPS63193407A JP62025406A JP2540687A JPS63193407A JP S63193407 A JPS63193407 A JP S63193407A JP 62025406 A JP62025406 A JP 62025406A JP 2540687 A JP2540687 A JP 2540687A JP S63193407 A JPS63193407 A JP S63193407A
- Authority
- JP
- Japan
- Prior art keywords
- fire
- electric wire
- fireproof
- resistant
- 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.)
- Pending
Links
- 230000009970 fire resistant effect Effects 0.000 claims description 21
- 239000004020 conductor Substances 0.000 claims description 5
- 229920000800 acrylic rubber Polymers 0.000 claims description 4
- 229920000058 polyacrylate Polymers 0.000 claims description 4
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 4
- 239000004800 polyvinyl chloride Substances 0.000 claims description 4
- 229920000181 Ethylene propylene rubber Polymers 0.000 claims description 2
- 239000006260 foam Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 claims 1
- 239000012212 insulator Substances 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 239000010445 mica Substances 0.000 description 3
- 229910052618 mica group Inorganic materials 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 229920003020 cross-linked polyethylene Polymers 0.000 description 2
- 239000004703 cross-linked polyethylene Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229910001562 pearlite Inorganic materials 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 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 1
- TXBCBTDQIULDIA-UHFFFAOYSA-N 2-[[3-hydroxy-2,2-bis(hydroxymethyl)propoxy]methyl]-2-(hydroxymethyl)propane-1,3-diol Chemical compound OCC(CO)(CO)COCC(CO)(CO)CO TXBCBTDQIULDIA-UHFFFAOYSA-N 0.000 description 1
- 239000004114 Ammonium polyphosphate Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- 235000019826 ammonium polyphosphate Nutrition 0.000 description 1
- 229920001276 ammonium polyphosphate Polymers 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 239000002655 kraft paper Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 239000010451 perlite Substances 0.000 description 1
- 235000019362 perlite Nutrition 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 229920001897 terpolymer Polymers 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は、火災時において長時間使用することかでき
る耐火電線に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a fire-resistant electric wire that can be used for a long time in the event of a fire.
（従来の技術）
耐火電線は、一般的にはケーブル導体上にマイカテープ
を施し、さらに絶縁体および外装を施した構造となって
いる。このタイプの耐火電線は。(Prior Art) Fireproof electric wires generally have a structure in which a mica tape is applied on a cable conductor, and an insulator and an exterior are further applied. This type of fireproof wire.
この構造により消防庁告示第７号で規定される耐火試験
即ち、８４０℃雰囲気中で３０分耐える条件をほぼ満す
耐火電線となっている。This structure makes it a fire-resistant electric wire that almost satisfies the fire-resistance test stipulated by Fire and Disaster Management Agency Notification No. 7, that is, the conditions for withstanding 30 minutes in an 840°C atmosphere.
（発明か解決しようとする問題点）
しかるに、近年高層ビルか林立し、かつ防災意識昂揚か
叫ばれており、３０分程度の安全性では不充分になりつ
つある。(Problem to be solved by invention) However, in recent years, high-rise buildings are being built, and people are calling for increased awareness of disaster prevention, and 30 minutes of safety is becoming insufficient.
即ち、現行の規準では防災上においてなお一抹の不安が
あり、より長時間に亘り使用できる耐火電線の出現か強
く要望されている。That is, there is still some concern regarding disaster prevention under the current standards, and there is a strong demand for a fire-resistant electric wire that can be used for a longer period of time.
この発明の目的は、火災時において従来製品よりさらに
２時間以上もの高温に長時間耐えることかできる耐火電
線を提供するにある。また、最終的にはＪＩＳＡ１３０
２に基づく燃焼条件である１０１０℃の高温で２６時間
以上に持ち堪えられる耐火電線を提供することにある。An object of the present invention is to provide a fire-resistant electric wire that can withstand high temperatures for a longer period of two hours or more than conventional products in the event of a fire. Also, in the end, JISA130
The object of the present invention is to provide a fire-resistant electric wire that can withstand the high temperature of 1010° C. for 26 hours or more, which is the combustion condition based on No. 2.
（問題点を解決するための手段）
この発明では、心線を形成する耐火電線を、ケーブル導
体、マイカテープからなる耐火層および架橋ポリエチレ
ン絶縁体から構成し、この外周にアクリルゴムおよびエ
チレンプロピレンゴムをベースにした厚さか５ｍｍ〜１
０ｍｍの発泡耐火層を施し、さらにこの外周にポリ塩化
ビニルの外装を施してなる耐火電線である。(Means for Solving the Problems) In the present invention, the fireproof electric wire forming the core wire is composed of a cable conductor, a fireproof layer made of mica tape, and a crosslinked polyethylene insulator, and the outer periphery of the fireproof wire is made of acrylic rubber and ethylene propylene rubber. Thickness based on 5mm ~ 1
This is a fire-resistant electric wire with a 0 mm foam fire-resistant layer and a polyvinyl chloride sheath around the outer periphery.
（作用）
したがって、上記発泡性耐火層を形成する耐火組成物は
、特に発泡作用により優れた耐火性能を有するとともに
人体に有害なハロゲン系ガスを発生しない低発煙性の耐
火層となり、高温雰囲気中て長持間に亘り電気性能の安
定した耐火電線となる。(Function) Therefore, the fireproof composition forming the above-mentioned foamable fireproof layer has excellent fireproof performance especially due to the foaming action, and becomes a low-smoke fireproof layer that does not generate halogen gas harmful to the human body. This results in a fire-resistant wire with stable electrical performance over a long period of time.
（実施例）
以ド、図面に基づいてこの発明の耐火電線の実施例を説
明する。(Example) Hereinafter, an example of the fireproof electric wire of the present invention will be described based on the drawings.
中央の３本の心線から構成される耐火電線は、それぞれ
断面積か２．６ｍｍ２の銅素！ｉｔ７本を撚り合せ、さ
らにこれを圧縮して断面積３ Ｂ ｍ ｍ ’にした圧
縮銅導体ｌの上に、公知の耐火層２としてガラス−マイ
カ複合テープを局ラップで６回巻きして１．２〜１．５
ｍｍの厚さに形成する。そして、この周上に厚さ４ｍｍ
の架橋ポリエチレンの絶縁体３を押出形成し、その周上
に厚さ０．２ｍｍの外部半導電層４を押出形成し、さら
にその周上に厚さ０．１ｍｍの銅テープを任意のラップ
て巻いて遮蔽層５を形成したものである。The fireproof wire consists of three core wires in the center, each made of copper with a cross-sectional area of 2.6 mm2! A glass-mica composite tape was wrapped 6 times with a local wrap to form a known fireproof layer 2 on a compressed copper conductor l, which was made by twisting 7 pieces of it and compressing it to a cross-sectional area of 3 B m m'. .2-1.5
Form to a thickness of mm. Then, on this circumference, add a thickness of 4mm.
An insulator 3 made of cross-linked polyethylene is extruded, an outer semiconductive layer 4 with a thickness of 0.2 mm is extruded on the periphery of the insulator 3, and a copper tape with a thickness of 0.1 mm is optionally wrapped on the periphery. The shielding layer 5 is formed by winding it.
さらにこれらの耐火電線は、ポリプロピレンヤーンの介
在６とともに撚り合せ、これらの周上にポリエチレン不
織布の押え巻き層７を施し、さらにその周上に厚さ３ｍ
ｍのポリ塩化ビニルの内部シース８が押出形成されて構
成されている。このような耐火電線は従来公知のもので
ある。Furthermore, these fire-resistant electric wires are twisted together with a polypropylene yarn intervening layer 6, a pressing layer 7 of polyethylene non-woven fabric is applied on the circumference thereof, and a 3 m thick layer is applied on the circumference thereof.
An inner sheath 8 of polyvinyl chloride of m is constructed by extrusion. Such fireproof wires are conventionally known.
この発明ては、さらに上記耐火電線に次の構成を行なう
ことにより、耐火性を向上させる。即ち、さらに周上に
厚さが０．３〜０．４ｍｍのクラフト紙９を局ラップで
２回巻きした後、組成がアクリルゴム５０重量部、エチ
レンプロピレンターポリマー５０重量部、ジペンタエリ
スリトール１１０重量部、ポリリン酸アンモニウム１１
０重量部、ステアリン酸２重量部、パラフィンワックス
２重量部を含有する発泡性耐火層ｌＯを厚さ５ｍｍ〜１
０ｍｍに押出形成し、さらにその周上に厚さ３ｍｍのポ
リ塩化ビニルの外装置１が押出形成される構成となって
いて、外径は約７０ ｍ ｍφとなっている。In this invention, the fire resistance is further improved by providing the fire resistant electric wire with the following configuration. That is, after wrapping kraft paper 9 with a thickness of 0.3 to 0.4 mm twice on the circumference, the composition was 50 parts by weight of acrylic rubber, 50 parts by weight of ethylene propylene terpolymer, and 110 parts by weight of dipentaerythritol. Parts by weight, ammonium polyphosphate 11
0 parts by weight, 2 parts by weight of stearic acid, and 2 parts by weight of paraffin wax.
The outer device 1 made of polyvinyl chloride with a thickness of 3 mm is extruded on the circumference of the outer device 1, and has an outer diameter of about 70 mmφ.
次に、このように構成された耐火電線の評価を行なうた
めの耐火試験についての概略を第２図。Next, FIG. 2 schematically shows a fire resistance test for evaluating the fire resistant electric wire constructed in this way.
第３図に基づいて説明する。これはＪＩＳＡ１３０２に
基づいて行なうものである。即ち、高さ１５００ｍｍ、
幅６００ｍｍの加熱試験炉２１内には中央に水平に試料
長１．３ｍの供試ケーブル２０を挿通する孔が設けられ
ている。この中に、下部にバナー２２を有する台車２３
が挿入される。そして、供試ケーブル２０は台車２３内
のパーライト板２４によって取り囲まれ、バーナー２２
により加熱してパーライト板２４内の雰囲気を測定温度
に保つようにして行なわれる。この測定温度は第３図に
示されるように５４０℃。This will be explained based on FIG. This is done based on JISA1302. That is, the height is 1500mm,
Inside the heating test furnace 21 having a width of 600 mm, a hole is provided in the center horizontally through which the test cable 20 having a sample length of 1.3 m is inserted. In this, a trolley 23 with a banner 22 at the bottom
is inserted. The test cable 20 is surrounded by a perlite plate 24 inside the cart 23, and the burner 22
This is done by heating the pearlite plate 24 to maintain the atmosphere inside the pearlite plate 24 at the measurement temperature. The measurement temperature was 540°C as shown in Figure 3.
７０５℃、７６０℃、７９５℃、８４０℃。705°C, 760°C, 795°C, 840°C.
９２５℃および１０１０℃の各温度が必要な時間保たれ
るようになっている。The temperatures of 925°C and 1010°C are maintained for the required time.
消防庁告示第７号では１点線で示す８４０°Ｃ雰囲気中
３０分後て規定の耐電圧、Ｍ ｅ ｇおよび延焼距離を
満足することで合格となるか、この発明てはさらに厳し
い条件として９２５℃て６０分および１０１０°Ｃで１
２０分間燃焼させるようにした。According to Fire and Disaster Management Agency Notification No. 7, a test is passed if the specified withstand voltage, M e g and fire spread distance are satisfied after 30 minutes in an 840°C atmosphere, as indicated by the one-dot line. ℃ for 60 minutes and 1010℃ for 1
It was allowed to burn for 20 minutes.
次に、供試ケーブルとして、発泡性耐火層を種々の厚さ
に変えたものと、この発泡性耐火層のない従来例につい
て、上記耐火試験を行なった結果を第１表に示す。即ち
、発泡性耐火層の厚さを１ｍｍ、４ｍｍ、５ｍｍ、７ｍ
ｍ、１０ｍｍにした場合の試験結果である。この表から
分るように、発泡性耐火層の厚さか５ｍｍ以下の場合に
は不合格となる。そして、この発泡性耐火層の厚さか５
ｍｍ以上あれば耐火性は満足されるが、これをあまり厚
くすると電線全体が太くなり取り扱い性か悪くなってし
まう。この点を考慮して上根な１０層−程度にするのか
好しいものとなる。Next, Table 1 shows the results of the above-mentioned fire resistance tests conducted on test cables with foamable fireproof layers of various thicknesses and conventional cables without the foamable fireproof layer. That is, the thickness of the foamable fireproof layer is 1 mm, 4 mm, 5 mm, and 7 m.
These are the test results when the diameter was set to 10 mm. As can be seen from this table, if the thickness of the foamable fireproof layer is 5 mm or less, the test is rejected. The thickness of this foamed fireproof layer is 5
If the wire is thicker than mm, the fire resistance will be satisfied, but if it is too thick, the entire wire will become thick and the handling will be poor. Taking this point into consideration, it is preferable to use approximately 10 layers.
上記実施例における発泡性耐火層の代りに、さらにアク
リルゴム４０〜１００重量％と炭化水素系エラストマ−
６０〜Ｏ重量％からなるポリマ成分１００重量部に対し
て炭化水素系多価アルコールまたは炭水化物６０〜１２
０重量部および難燃性脱氷剤６０〜１２０重量部を含有
しする耐火物組成物を使用することかできる。In place of the foamable fireproof layer in the above embodiments, 40 to 100% by weight of acrylic rubber and a hydrocarbon elastomer were added.
60 to 12 parts by weight of a hydrocarbon polyhydric alcohol or carbohydrate per 100 parts by weight of a polymer component consisting of 60 to 0% by weight
Refractory compositions containing 0 parts by weight and 60 to 120 parts by weight of flame retardant deicing agent can be used.
（発明の効果）
以上説明したように、この発明の耐火電線は２時間耐火
（１０１０’ＣＸ１２０分）に十分耐えるものとなり、
大幅な防災効果の向上かもたらされる。また、応用例と
して光ファイバーを入れた複合耐火電線もてきる。(Effects of the Invention) As explained above, the fire-resistant electric wire of the present invention can sufficiently withstand fire resistance for 2 hours (1010'CX 120 minutes),
This will bring about a significant improvement in disaster prevention effectiveness. Another application example is composite fire-resistant wires containing optical fibers.
第１図は、この発明の実施例を示す耐火電線の横断面図
、
第２図は、耐火電線の評価をするための耐火試験の概略
構成図、
第３図は、上記第３図に示す装置での燃焼条件を示す線
図である。
ｌ・・・・・・ケーフル導体
２・・・・・・耐火層
３・・・・・・絶縁体
ｌＯ・・・・・・発泡性耐火層
１１・・・・・・外装Figure 1 is a cross-sectional view of a fire-resistant electric wire showing an embodiment of the present invention, Figure 2 is a schematic configuration diagram of a fire-resistant test for evaluating fire-resistant electric wires, and Figure 3 is shown in Figure 3 above. FIG. 3 is a diagram showing combustion conditions in the device. l... Cable conductor 2... Fireproof layer 3... Insulator lO... Foaming fireproof layer 11... Exterior
Claims (1)
線を心線とし、 この耐火電線の外周にアクリルゴムおよびエチレンプロ
ピレンゴムをベースとした厚さが ５ｍｍ〜１０ｍｍの範囲の発泡性耐火層を施し、さらに
この外周にポリ塩化ビニルの外装を施したことを特徴と
する耐火電線。[Claims] A fire-resistant electric wire consisting of a cable conductor, a fire-resistant layer and an insulating layer is used as a core wire, and the outer periphery of this fire-resistant electric wire is coated with a material having a thickness ranging from 5 mm to 10 mm and made of acrylic rubber and ethylene propylene rubber. A fire-resistant electric wire characterized by having a foam fire-resistant layer and a polyvinyl chloride exterior covering the outer periphery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62025406A JPS63193407A (en) | 1987-02-04 | 1987-02-04 | Fireproof wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62025406A JPS63193407A (en) | 1987-02-04 | 1987-02-04 | Fireproof wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63193407A true JPS63193407A (en) | 1988-08-10 |
Family
ID=12165030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62025406A Pending JPS63193407A (en) | 1987-02-04 | 1987-02-04 | Fireproof wire |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63193407A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103325468A (en) * | 2013-06-28 | 2013-09-25 | 无锡市新阳光电缆有限公司 | Polyvinyl chloride insulating multi-core power cable |
| CN103413605A (en) * | 2013-07-23 | 2013-11-27 | 江苏远方电缆厂有限公司 | Polyvinyl chloride insulation polyvinyl chloride jacket multi-layer fire-resistant multi-core cable |
-
1987
- 1987-02-04 JP JP62025406A patent/JPS63193407A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103325468A (en) * | 2013-06-28 | 2013-09-25 | 无锡市新阳光电缆有限公司 | Polyvinyl chloride insulating multi-core power cable |
| CN103413605A (en) * | 2013-07-23 | 2013-11-27 | 江苏远方电缆厂有限公司 | Polyvinyl chloride insulation polyvinyl chloride jacket multi-layer fire-resistant multi-core cable |
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