JPH0430729Y2 - - Google Patents
Info
- Publication number
- JPH0430729Y2 JPH0430729Y2 JP1986061270U JP6127086U JPH0430729Y2 JP H0430729 Y2 JPH0430729 Y2 JP H0430729Y2 JP 1986061270 U JP1986061270 U JP 1986061270U JP 6127086 U JP6127086 U JP 6127086U JP H0430729 Y2 JPH0430729 Y2 JP H0430729Y2
- Authority
- JP
- Japan
- Prior art keywords
- layer
- flame
- cable
- retardant
- carbon fiber
- 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
- 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 claims description 16
- 239000003063 flame retardant Substances 0.000 claims description 16
- 239000004744 fabric Substances 0.000 claims description 9
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 8
- 239000004917 carbon fiber Substances 0.000 claims description 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 8
- 238000009413 insulation Methods 0.000 claims description 2
- 239000010410 layer Substances 0.000 description 34
- 239000011241 protective layer Substances 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000004020 conductor Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- IDCBOTIENDVCBQ-UHFFFAOYSA-N TEPP Chemical compound CCOP(=O)(OCC)OP(=O)(OCC)OCC IDCBOTIENDVCBQ-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- 239000012209 synthetic fiber Substances 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 238000010000 carbonizing Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 229920003020 cross-linked polyethylene Polymers 0.000 description 1
- 239000004703 cross-linked polyethylene Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004079 fireproofing Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
Landscapes
- Insulated Conductors (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、外部加熱又は内部加熱によつても発
火、類焼し難い難燃性CVケーブルに関するもの
である。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a flame-retardant CV cable that is unlikely to catch fire or catch fire even when heated externally or internally.
近年、ケーブルの防火処理が大きな課題になつ
ているが、通常のCVケーブルにおいては、外部
又は内部からの火気に対して殆ど無防備であり、
自己発火或いは類焼に対する防御が不充分であつ
た。
In recent years, fireproofing of cables has become a major issue, but ordinary CV cables are almost defenseless against fire from outside or inside.
Protection against self-ignition or concomitant fire was insufficient.
第２図は例えば従来のCVケーブルの断面図で
あり、導体１の上層に内部半導電層２、架橋ポリ
エチレンから成る絶縁体層３、外部半導電層４、
保護層５、ワイヤストランド層６、防食層７が順
次に配列されている。ここで、保護層５はテトロ
ン等の合成繊維布にカーボンを塗布して導電性を
持たせたものが用いられ、外部半導電層４以内の
内部構造の保護を行うと共に、銅線から成るワイ
ヤストランド層６のクツシヨン材を兼ねている。 FIG. 2 is a cross-sectional view of, for example, a conventional CV cable, in which the upper layer of the conductor 1 includes an inner semiconducting layer 2, an insulator layer 3 made of cross-linked polyethylene, an outer semiconducting layer 4,
A protective layer 5, a wire strand layer 6, and an anticorrosion layer 7 are arranged in this order. Here, the protective layer 5 is made of a synthetic fiber cloth such as Tetron coated with carbon to make it conductive, and it protects the internal structure within the outer semiconductive layer 4, and also protects the internal structure of the outer semiconductive layer 4. It also serves as a cushion material for the strand layer 6.
しかし、この保護層５は耐火性が充分ではな
く、CVケーブルを火災から保護することが殆ど
できない。 However, this protective layer 5 does not have sufficient fire resistance and can hardly protect the CV cable from fire.
本考案の目的は、上述の欠点を解消し、CVケ
ーブルに炭素繊維布テープから成る難燃層を設け
た難燃性CVケーブルを提供することにある。
An object of the present invention is to eliminate the above-mentioned drawbacks and provide a flame-retardant CV cable in which a flame-retardant layer made of carbon fiber cloth tape is provided on the CV cable.
上述の目的を達成するための本考案の要旨は、
ケーブル絶縁層外周の外部半導電層上に炭素繊維
布テープによる難燃層を設けたことを特徴とする
難燃性CVケーブルである。
The gist of this invention to achieve the above objectives is as follows:
This is a flame-retardant CV cable characterized by having a flame-retardant layer made of carbon fiber cloth tape provided on the outer semiconducting layer around the outer periphery of the cable insulation layer.
本考案を図示の実施例に基づいて詳細に説明す
る。
The present invention will be explained in detail based on illustrated embodiments.
第１図はCVケーブルの断面図であり、第２図
の従来例と同様に中心部の導体１１の周囲に内部
半導電層１２が設けられ、その周囲に例えば架橋
ポリエチレンから成る絶縁体層１３が設けられ、
更にその上層にポリエチレンから成る外部半導電
層１４が設けられている。そして、この外部半導
電層１４上には、炭素繊維布テープから成る難燃
層１５が設けられ、更にその上にワイヤストラン
ド層１６、PCVから成る防食層１７が形成され
ている。 FIG. 1 is a sectional view of a CV cable, in which an internal semiconducting layer 12 is provided around a central conductor 11, as in the conventional example shown in FIG. is established,
Furthermore, an outer semiconductive layer 14 made of polyethylene is provided on top of this. A flame retardant layer 15 made of carbon fiber cloth tape is provided on this external semiconductive layer 14, and a wire strand layer 16 and a corrosion protection layer 17 made of PCV are further formed thereon.
ここで、難燃層１５は例えばアクリル系樹脂繊
維を炭化した炭素繊維から成り、テープ状に織成
され外部半導電層１４上に巻回されている。前述
したように、従来においてはこの難燃層１５に相
当するものとして、第２図に示したようにテトロ
ン布等の合成繊維にカーボンを塗布して導電性を
持たせた保護層５が巻回されていたが、この難燃
層１５は保護層５が有していた導電性及びクツシ
ヨン材としての役割りも有するばかりでなく、特
に火災に強い所謂難燃性を有している。つまり、
炭素繊維布は有機繊維中で最も優れた耐炎性を有
しており、限界酸素指数50〜60で空気中に存在す
る濃度の酸素では燃焼することはない。また、
170〜200℃程度における連続的な加熱に対しても
耐えることができ、短時間であれば1000〜1300℃
の熱の繰り返しにおいても使用可能であり、また
酸素を遮蔽する機能を備えているために火災時に
おけるケーブル延焼も防止し得る。更には、軽量
で比強度、比弾性にも優れ、電波シールド性も良
好である。 Here, the flame-retardant layer 15 is made of carbon fiber obtained by carbonizing acrylic resin fiber, for example, and is woven into a tape shape and wound on the outer semiconductive layer 14 . As mentioned above, conventionally, as shown in FIG. 2, a protective layer 5 made of synthetic fibers such as Tetron cloth coated with carbon to make it conductive is wrapped around the flame-retardant layer 15. However, this flame retardant layer 15 not only has the electrical conductivity and function as a cushion material which the protective layer 5 had, but also has so-called flame retardancy which is particularly resistant to fire. In other words,
Carbon fiber cloth has the best flame resistance among organic fibers, and has a limiting oxygen index of 50 to 60, meaning it will not burn at the concentration of oxygen present in the air. Also,
Can withstand continuous heating at temperatures of 170 to 200℃, and can withstand temperatures of 1000 to 1300℃ for short periods of time.
It can be used even under repeated heat conditions, and since it has an oxygen shielding function, it can also prevent the spread of cable fire in the event of a fire. Furthermore, it is lightweight, has excellent specific strength and specific elasticity, and has good radio wave shielding properties.
このような難燃層１５をCVケーブルの絶縁体
層１３よりも上層に設けることにより、CVケー
ブルの耐炎性や難燃性を図ることが可能となり、
また炭素繊維布テープ自体が導電性を有している
ために、それだけ外部半導電層１４を薄くするか
できるという相乗効果もある。 By providing such a flame retardant layer 15 above the insulator layer 13 of the CV cable, it is possible to improve the flame resistance and flame retardance of the CV cable.
Furthermore, since the carbon fiber cloth tape itself has conductivity, there is a synergistic effect in that the outer semiconductive layer 14 can be made thinner.
以上説明したように本考案に係る難燃性CVケ
ーブルは、CVケーブルの外部半導電層上に炭素
繊維布テープを設けることによりCVケーブルの
難燃化を図ることができ、従来用いていたCVケ
ーブルの保護層に代替させることが可能であると
共に、外部半導電層を薄くすることが可能であ
り、ヒートサイクル時にクツシヨン性を有する利
点もある。
As explained above, the flame-retardant CV cable according to the present invention can make the CV cable flame-retardant by providing a carbon fiber cloth tape on the external semiconductive layer of the CV cable, which is different from the conventional CV cable. It can be used as a protective layer for cables, and the outer semiconducting layer can be made thinner, and it also has the advantage of providing cushioning properties during heat cycles.
図面第１図は本考案に係る難燃性CVケーブル
の一実施例の断面図を示し、第２図は従来のCV
ケーブルの断面図である。
符号１１は導体、１２は内部半導電層、１３は
絶縁体層、１４は外部半導電層、１５は難燃層、
１６はワイヤストランド層、１７は防食層であ
る。
Figure 1 shows a cross-sectional view of one embodiment of the flame-retardant CV cable according to the present invention, and Figure 2 shows a cross-sectional view of a conventional CV cable.
FIG. 3 is a cross-sectional view of the cable. 11 is a conductor, 12 is an inner semiconducting layer, 13 is an insulating layer, 14 is an outer semiconducting layer, 15 is a flame retardant layer,
16 is a wire strand layer, and 17 is an anticorrosion layer.
Claims (1)
維布テープによる難燃層を設けたことを特徴とす
る難燃性CVケーブル。 A flame-retardant CV cable characterized by having a flame-retardant layer made of carbon fiber cloth tape provided on the outer semiconducting layer around the outer periphery of the cable insulation layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986061270U JPH0430729Y2 (en) | 1986-04-23 | 1986-04-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986061270U JPH0430729Y2 (en) | 1986-04-23 | 1986-04-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62173113U JPS62173113U (en) | 1987-11-04 |
| JPH0430729Y2 true JPH0430729Y2 (en) | 1992-07-24 |
Family
ID=30894450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986061270U Expired JPH0430729Y2 (en) | 1986-04-23 | 1986-04-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0430729Y2 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61189518U (en) * | 1985-05-20 | 1986-11-26 |
-
1986
- 1986-04-23 JP JP1986061270U patent/JPH0430729Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62173113U (en) | 1987-11-04 |
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