JPS6014710A - Flame extension preventive cable - Google Patents
Flame extension preventive cableInfo
- Publication number
- JPS6014710A JPS6014710A JP58123648A JP12364883A JPS6014710A JP S6014710 A JPS6014710 A JP S6014710A JP 58123648 A JP58123648 A JP 58123648A JP 12364883 A JP12364883 A JP 12364883A JP S6014710 A JPS6014710 A JP S6014710A
- Authority
- JP
- Japan
- Prior art keywords
- cable
- fire
- sheath
- present
- tape
- 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
Landscapes
- Insulated Conductors (AREA)
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】
本発明は電線及びケーブル、特に延焼防止処理の施され
た電線及びケーブルに関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to electric wires and cables, and particularly to electric wires and cables treated to prevent the spread of fire.
従来、電線やケーブル（以下、り°−プルと称する）は
一般に絶縁体で被覆された絶縁導体、押えテープ、及び
この上に設けられたシースより主としてなっているが、
絶縁体やシースとしてはシラチック、テープには紙等の
繊維制等が用いられているので、ケーブルが外部からの
火災にあうと、ケーブルのシースや絶縁体が損傷を受け
、電力、信号等を送ることができなくなり、ケーブルの
機能が失われる。従って、火災の範囲拡大防止や延焼防
止という点からケーブルの外部に防災層を施したり、シ
ース内に防災層を設ける等の対策が行われている。しか
しながら、ケーブルの外部に防災材を施す場合には、シ
ースの外部の層として設けられるので、防災材が防災性
の他に、耐傷性、耐薬品性等の緒特性を満足しなければ
ならず、これらの特゛性を十分に満すものはなく、捷た
シース内に防災層と（２て設ける場合には、主として防
災性、難燃性等のみを有しておればよいという利点があ
るが、未だ十分な延焼防止を示す材料は見出されておら
ず、これら従来の対策では、ケーブルが火点にさらされ
た部分では絶縁体まで損傷を受けることになり、その機
能は比較的短時間に失われてしまう。Conventionally, electric wires and cables (hereinafter referred to as re-pulls) have generally consisted of an insulated conductor covered with an insulator, a holding tape, and a sheath provided on this.
The insulation and sheath are made of silastic, and the tape is made of fibers such as paper, so if the cable is exposed to an external fire, the cable sheath and insulation will be damaged and the power, signals, etc. will be damaged. transmission becomes impossible, and the cable loses its functionality. Therefore, in order to prevent the fire from expanding and spreading, measures such as providing a disaster prevention layer on the outside of the cable or providing a disaster prevention layer inside the sheath are being taken. However, when applying disaster prevention material to the outside of the cable, it is provided as an external layer of the sheath, so in addition to disaster prevention properties, the disaster prevention material must also satisfy other properties such as scratch resistance and chemical resistance. However, there is no material that fully satisfies these characteristics, and when providing a disaster prevention layer (2) within the cut sheath, the advantage is that it only needs to have disaster prevention properties, flame retardance, etc. However, no material has yet been found that sufficiently prevents the spread of fire, and with these conventional measures, even the insulators are damaged in the areas where the cable is exposed to the fire point, and their functionality is relatively limited. It will be lost in a short time.
本発明の目的は外部火災にさらされた際、シースが延焼
を受けても絶縁体の損傷をくいとめるか、絶縁体の機能
保持時間が延長される手段を備えだケーブルを提供する
ことにある。SUMMARY OF THE INVENTION It is an object of the present invention to provide a cable that is provided with means for preventing damage to the insulation even if the sheath is exposed to fire spread or for extending the functional retention time of the insulation when exposed to an external fire.
本発明の他の目的はケーブルの延焼防止剤としてケーブ
ルシース内に用いて優れた効果を示す組成物を提供する
ことにある。Another object of the present invention is to provide a composition that exhibits excellent effects when used in a cable sheath as a fire spread preventive agent for cables.
本発明者等は、ケーブルの蝙焼防止対策として、ケーブ
ルシース内に延焼防止層として用いるのに有効な材料に
ついて種々検討を重ねた結果、以下に示すような塗料組
成物が延焼防止剤として極めて有効であり、シース内の
押えテープに塗布または含浸させることによって非常に
すぐれた延焼防止効果を有するケーブルを得ることを見
出し、本発明を達成した。The inventors of the present invention have conducted various studies on materials that are effective for use as a fire spread prevention layer within the cable sheath as a measure to prevent cable fire from burning. As a result, the following coating composition has been found to be extremely effective as a fire spread prevention agent. It has been found that by coating or impregnating the holding tape in the sheath, a cable having an extremely excellent fire spread prevention effect can be obtained, and the present invention has been achieved.
すなわち、本発明は絶縁線心、該線心上に設けられた押
えテープ、及びその上に設けられだシースより主として
なるケーブルにおいて、前記押えテープにポリりん酸ア
ンモニウム、ジペンタエリスリトール、メラミン、及び
酢酸ビニルエマルジョンからなる塗料を塗布または含浸
させたことを特徴とする延焼防止ケーブルである。That is, the present invention provides a cable mainly consisting of an insulated wire core, a holding tape provided on the wire core, and a sheath provided thereon, in which the holding tape contains ammonium polyphosphate, dipentaerythritol, melamine, and This cable is characterized by being coated with or impregnated with a paint made of vinyl acetate emulsion.
以下、本発明を図面を参照しつつ説明する。Hereinafter, the present invention will be explained with reference to the drawings.
第１図は本発明の一実施例を示す断面図であって、銅等
よりなる導体１をポリエチレン、架橋ポリエチレン等よ
りなる絶縁体２で被覆した絶縁線心を３本撚り合わせ、
これに本発明による塗料を塗布または含浸した紙等より
なる押えテープ３を巻き付け、これを例えばポリ塩化ビ
ニル等よりなるシース４を押出ｌ〜等によって被覆しで
ある。FIG. 1 is a sectional view showing an embodiment of the present invention, in which a conductor 1 made of copper or the like is covered with an insulator 2 made of polyethylene, cross-linked polyethylene, etc., and three insulated wire cores are twisted together.
A presser tape 3 made of paper or the like coated or impregnated with the paint according to the present invention is wrapped around this, and this is covered with a sheath 4 made of polyvinyl chloride or the like by extrusion or the like.
本発明で用いられる塗料のポリりん酸アンモニウムは発
泡剤、ジペンタエリスリトールは炭化層形成剤、メラミ
ンは難燃剤、酢酸ビニルエマルジョンはノ々イングーと
しての効果を有している。In the paint used in the present invention, ammonium polyphosphate has the effect of a foaming agent, dipentaerythritol has the effect of forming a carbonized layer, melamine has the effect of a flame retardant, and vinyl acetate emulsion has the effect of a non-inguminating agent.
本発明のケーブルは上記のように構成されているので、
ケーブルが火災にあい、シース４が外部火災で焼損して
も、火が絶縁体２におよぶ前にテープ３に火が当るので
、テープに塗布または含浸されている塗料が発泡するこ
とにより絶縁体を火災から保護することができる。Since the cable of the present invention is configured as described above,
Even if the cable is caught in a fire and the sheath 4 is burnt out due to an external fire, the tape 3 will catch fire before the fire reaches the insulator 2, so the paint coated or impregnated on the tape will foam and the insulator will be damaged. can be protected from fire.
なお、本発明の組成を有する塗料を用いるときは、テー
プに火が当った場合、上記のように塗料中のポリりん酸
アンモニウムが発泡するばかりでなく、難燃剤であるメ
ラミンがテープ基質の燃焼を防止し、またジペンタエリ
スリトールが炭化して炭化層をテープに形成するので、
絶縁体を火災から保護する作用をさらに強くすることが
できる。When using a paint having the composition of the present invention, if the tape is exposed to fire, not only will the ammonium polyphosphate in the paint foam as described above, but the melamine, which is a flame retardant, will cause the tape substrate to burn. It also prevents dipentaerythritol from carbonizing and forming a carbonized layer on the tape.
The effect of protecting the insulator from fire can be further strengthened.
前記実施例では絶縁線心３本を撚り合せた例を示したが
、本発明はこのような例に限定されるものではなく、線
心は１本でも２本または４本以上であってもよい。In the above embodiment, an example was shown in which three insulated wire cores were twisted together, but the present invention is not limited to such an example, and the present invention may include one, two, or four or more wire cores. good.
また、従来、防災材等をケーブルの外部に施すことが行
われているが、このような場合は防災側としである程度
の厚さと、耐傷性、耐水性、耐油性、耐薬品性、耐候性
など種々の特性が要求されるが、本発明によるときは、
シース内面に防火塗料が塗布または含浸された防勲テー
ゾを存在させているので、防護テープや塗料に上記の如
き緒特性を必要とせず、まだ本発明の塗料を塗布する場
合には塗布層はどく薄くてもよく効果を発揮できる。In addition, conventionally, disaster prevention materials have been applied to the outside of cables, but in such cases, materials with a certain degree of thickness, scratch resistance, water resistance, oil resistance, chemical resistance, and weather resistance are required for disaster prevention. Various characteristics are required, but according to the present invention,
Since the inner surface of the sheath is coated with or impregnated with fire-retardant paint, there is no need for the protective tape or paint to have the above-mentioned characteristics, and when applying the paint of the present invention, the coating layer is It can be very effective even if it is very thin.
以上のように、本発明のケーブルは、電線やケーブル本
来の機能を保つと共に、火災時においても、絶縁線心を
保護し、系統の機能維持を少しでも長く保ち、被害を最
小限にとどめることができる。As described above, the cable of the present invention not only maintains the original functions of electric wires and cables, but also protects the insulated wire core even in the event of a fire, maintains the function of the system for as long as possible, and minimizes damage. I can do it.
第１図は本発明ケーブルの一実施例を示す断面図である
。
ｌ・・・導体、２・・・絶縁体、３・・・押えテープ、
４・・・シース。
発 １ 回
−４３−FIG. 1 is a sectional view showing an embodiment of the cable of the present invention. l...conductor, 2...insulator, 3...pressing tape,
4... Sheath. Issue 1 time-43-
Claims (1)
びその上に設けられたシースよりなるケーブルにおいて
、前記押えテープにポリリン酸アンモニウム、シヘンタ
エリスリトール、メラミン、及び酢酸ビニルエマルジョ
ンからなる塗料を塗布または含浸させたことを特徴とす
る延焼防止ケーブル。(1) In a cable consisting of an insulated wire core, a holding tape provided on the wire core, and a sheath provided thereon, the holding tape is made of ammonium polyphosphate, cyhentaerythritol, melamine, and vinyl acetate emulsion. A fire spread prevention cable coated with or impregnated with a paint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58123648A JPS6014710A (en) | 1983-07-07 | 1983-07-07 | Flame extension preventive cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58123648A JPS6014710A (en) | 1983-07-07 | 1983-07-07 | Flame extension preventive cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6014710A true JPS6014710A (en) | 1985-01-25 |
Family
ID=14865793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58123648A Pending JPS6014710A (en) | 1983-07-07 | 1983-07-07 | Flame extension preventive cable |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6014710A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6325428U (en) * | 1986-08-01 | 1988-02-19 | ||
| JP6467692B1 (en) * | 2017-12-26 | 2019-02-13 | 清典 藏田 | Thermally expandable fireproof insulation coating and fireproof insulation sheet for cables using the same |
-
1983
- 1983-07-07 JP JP58123648A patent/JPS6014710A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6325428U (en) * | 1986-08-01 | 1988-02-19 | ||
| JP6467692B1 (en) * | 2017-12-26 | 2019-02-13 | 清典 藏田 | Thermally expandable fireproof insulation coating and fireproof insulation sheet for cables using the same |
| JP2019116606A (en) * | 2017-12-26 | 2019-07-18 | 清典 藏田 | Heat expansion fireproof heat insulation coating, fireproof heat insulation sheet for cable using the same |
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