JPH0135530Y2 - - Google Patents
Info
- Publication number
- JPH0135530Y2 JPH0135530Y2 JP17036583U JP17036583U JPH0135530Y2 JP H0135530 Y2 JPH0135530 Y2 JP H0135530Y2 JP 17036583 U JP17036583 U JP 17036583U JP 17036583 U JP17036583 U JP 17036583U JP H0135530 Y2 JPH0135530 Y2 JP H0135530Y2
- Authority
- JP
- Japan
- Prior art keywords
- fire
- hole
- fireproof
- cable
- penetrating member
- 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
- 239000000463 material Substances 0.000 claims description 14
- 230000000149 penetrating effect Effects 0.000 claims description 7
- 230000003449 preventive effect Effects 0.000 claims description 5
- 238000000605 extraction Methods 0.000 claims description 3
- 230000035515 penetration Effects 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 description 6
- 239000000779 smoke Substances 0.000 description 5
- 239000004020 conductor Substances 0.000 description 4
- 230000002265 prevention Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 230000009970 fire resistant effect Effects 0.000 description 3
- 239000012212 insulator Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002557 mineral fiber Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000004079 fireproofing Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
Landscapes
- Installation Of Indoor Wiring (AREA)
- Cable Accessories (AREA)
Description
【考案の詳細な説明】
〔考案の背景と目的〕
本考案はケーブル等が貫通する床や壁の貫通部
を防火的にシールする構造に関する。[Detailed Description of the Invention] [Background and Purpose of the Invention] The present invention relates to a structure for fire-proofly sealing a penetration part of a floor or wall through which a cable or the like passes.
防火区画を形成している壁面のケーブル貫通孔
をシールする構成として実開昭58−37721号公報
に記載されているものがある。これは第１図に示
すように、貫通孔に不燃剤を充填して貫通してい
るケーブルと一体化した後に、不燃材表面とケー
ブル取出部とにまたがつて延焼防止剤を塗布する
ことにより貫通孔を密閉してなるものである。こ
の構成によれば、小サイズケーブルあるいは制御
ケーブル等の熱伝導量の少ないケーブルの防火シ
ールに効果があり、経済的であるという利点があ
る。 Japanese Utility Model Application No. 58-37721 discloses a structure for sealing cable through holes in a wall forming a fireproof compartment. As shown in Figure 1, this is done by filling the through hole with a fire retardant and integrating it with the cable passing through, and then applying a fire spread preventive agent across the surface of the removable material and the cable outlet. It is made by sealing the through hole. This configuration has the advantage of being effective in fire-proofing sealing of cables with a small amount of heat conduction, such as small-sized cables or control cables, and is economical.
ところがCVケーブルおよびCV−Ｔケーブルな
どのようにケーブル径が太くなると熱伝導量も多
くなり、火災が起きた場合に導体の熱膨張に伴な
い絶縁体およびシースが膨張するが、反火災側の
孔隣接部分ではその膨張に対し延焼防止材の塗膜
が追従できず、塗膜に亀裂が入つてしまう。そし
て導体の温度が上昇することにより絶縁体やシー
スが熱せられて、HCl等の有毒ガスを含有した黒
煙が塗膜の亀裂から発生する。またJISA1304の
標準加熱試験に準拠して燃焼試験（2h到達時
1010℃）を行なうと、孔隣接部分の絶縁体および
シースの温度はそれぞれの発火温度を越えて、約
450℃および約400℃近くにまで上昇し発火する。
したがつて火災が防火区画内に収まらず、外部に
まで延焼するという欠点がある。 However, as the cable diameter increases, such as in CV cables and CV-T cables, the amount of heat conduction also increases, and in the event of a fire, the insulator and sheath expand due to the thermal expansion of the conductor, but the anti-fire side In areas adjacent to the holes, the coating film of the fire spread prevention material cannot follow the expansion, resulting in cracks in the coating film. As the temperature of the conductor rises, the insulator and sheath are heated, and black smoke containing toxic gases such as HCl is generated from cracks in the paint film. In addition, a combustion test (at 2 hours) in accordance with the standard heating test of JISA1304
1010℃), the temperature of the insulator and sheath adjacent to the hole will exceed their respective ignition temperatures, and will be approximately
The temperature rises to 450℃ and nearly 400℃ and ignites.
Therefore, there is a drawback that the fire cannot be contained within the fireproof compartment and can spread to the outside.
そこで本考案の目的は上記欠点を解消し、より
安全な防火シール構造を提供することにある。 Therefore, an object of the present invention is to eliminate the above-mentioned drawbacks and provide a safer fireproof seal structure.
本考案は前に述べた従来の防火シール構造の改
良であり、防火区画を形成している床または壁の
貫通孔に不燃材を充填し、貫通孔内の貫通部材と
一体化し、不燃材表面および貫通孔内の貫通部材
の取出部にまたがつて延焼防止剤を塗布し、孔隣
接部分の貫通部材外周面に耐熱コーキング材層を
設け、さらにその周囲に耐火テープを巻き付けて
形成した、貫通部における防火シール構造であ
る。
The present invention is an improvement on the conventional fire seal structure mentioned above, in which the through holes in the floor or wall forming the fireproof compartment are filled with a noncombustible material, integrated with the penetrating member in the through hole, and the noncombustible material surface A through hole is formed by applying a fire spread preventive agent across the extraction part of the penetrating member in the through hole, providing a layer of heat-resistant caulking material on the outer peripheral surface of the penetrating member in the area adjacent to the hole, and further wrapping a fireproof tape around it. This is a fireproof seal structure in the section.
貫通部材の取出部は延焼防止剤を塗布されてお
り、その外側を耐熱コーキング材および耐火テー
プで補強されているので、火災が起きた場合に、
壁を境にして反火災側の貫通部材に熱が伝導して
もケーブルの発煙や発火を防げ、火災の延焼を最
小限に阻止することができる。 The extraction part of the penetrating member is coated with a fire spread prevention agent, and the outside is reinforced with heat-resistant caulking material and fire-resistant tape, so in the event of a fire,
Even if heat is conducted to the penetrating member on the anti-fire side across the wall, smoke and ignition of the cable can be prevented, and the spread of fire can be minimized.
以下に図面を参照しながら本考案の実施例を説
明する。
Embodiments of the present invention will be described below with reference to the drawings.
第２図に示すように壁７の貫通孔６内に不燃材
である鉱物性繊維２を、壁７と連続して孔６をふ
さぐように充填することにより、貫通孔６を通つ
ているケーブル５は固定されている。そして繊維
２表面と、ケーブル５の貫通孔６の両側部分の周
囲に一体的に延焼防止剤層１が設けられ、さらに
ケーブル５上の延焼防止剤層１の周囲には貫通孔
６に隣接して耐熱コーキング材層３が５〜10mmの
厚さで設けられ、その外周を耐火テープ４で覆わ
れている。ここでケーブル５上のコーキング材層
３の長さは適宜決定され、その周囲に巻き付ける
耐火テープ４としてはガラステープまたはFRP
テープが用いられ、これを２回ほど巻き付けるだ
けで耐火性は十分である。 As shown in FIG. 2, by filling the through hole 6 of the wall 7 with mineral fiber 2, which is a non-combustible material, so as to be continuous with the wall 7 and to close the hole 6, the cable passing through the through hole 6 is 5 is fixed. A fire spread preventive agent layer 1 is integrally provided on the surface of the fiber 2 and around both sides of the through hole 6 of the cable 5, and further around the fire spread preventive agent layer 1 on the cable 5, a layer adjacent to the through hole 6 is provided. A heat-resistant caulking material layer 3 is provided with a thickness of 5 to 10 mm, and its outer periphery is covered with a fire-resistant tape 4. Here, the length of the caulking material layer 3 on the cable 5 is determined as appropriate, and the fireproof tape 4 to be wrapped around it is glass tape or FRP.
Tape is used, and just wrapping it around two times is sufficient for fire resistance.
防火区画内で火災が起こつた場合、このように
構成されたシール部分は発煙や発火を起こすこと
は少ない。熱により導体が膨張しこれに追従でき
ずに延焼防止剤１に亀裂を生じることがあるが、
耐火テープ４により圧縮力を受けているコーキン
グ層３が亀裂に入り込んでこれをふさぎ、ケーブ
ル５の絶縁体およびシースからの発煙、発火を阻
止する。したがつて火災の熱が導体を伝つて壁を
はさんだ反火災側にまで及んでも、反火災側のケ
ーブル５から発煙や発火が起こることが少ない。 If a fire occurs within the fireproof compartment, the seal portion configured in this manner is unlikely to cause smoke or ignition. The conductor expands due to heat and cannot follow the expansion, which may cause cracks in the fire spread prevention agent 1.
The caulking layer 3, which is compressed by the fireproof tape 4, enters the crack and closes it, thereby preventing smoke and fire from emitting from the insulation and sheath of the cable 5. Therefore, even if the heat of the fire is transmitted through the conductor and reaches the side opposite to the fire across the wall, smoke or ignition is unlikely to occur from the cable 5 on the side opposite to the fire.
本考案のシール構造によれば、、火災が起きて
もそれが反火災側にまで及ぶことは少なく、延焼
防止効果が大きい。さらに本シール構造は簡単な
作業で形成することができる。
According to the seal structure of the present invention, even if a fire occurs, it is unlikely that the fire will spread to the side opposite to the fire, and the effect of preventing the spread of fire is great. Furthermore, this seal structure can be formed by a simple operation.
第１図は従来のシール構造の部分断面図であ
り、第２図は本考案のシール構造の部分断面図で
ある。
図中符号、１…延焼防止材層、２…鉱物性繊
維、３…耐熱コーキング材層、４…耐火テープ、
５…ケーブル、６…貫通孔、７…壁。
FIG. 1 is a partial sectional view of a conventional seal structure, and FIG. 2 is a partial sectional view of the seal structure of the present invention. Symbols in the figure, 1... Fire spread prevention material layer, 2... Mineral fiber, 3... Heat resistant caulking material layer, 4... Fire resistant tape,
5... Cable, 6... Through hole, 7... Wall.
Claims (1)
不燃材を充填し該貫通孔内の貫通部材と一体化
し、前記不燃材表面および前記貫通孔内の前記貫
通部材の取出部にまたがつて延焼防止剤を塗布
し、孔隣接部分の前記貫通部材外周面に耐熱コー
キング材層を設け、さらにその周囲に耐火テープ
を巻き付けて形成した、貫通部における防火シー
ル構造。 Filling a through hole in a floor or wall forming a fireproof compartment with a noncombustible material, integrating it with a penetrating member in the through hole, and straddling the surface of the noncombustible material and the extraction part of the penetrating member in the through hole. A fireproof seal structure in a penetration part formed by applying a fire spread preventive agent, providing a heat-resistant caulking material layer on the outer peripheral surface of the penetration member in a portion adjacent to the hole, and further wrapping a fireproof tape around it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17036583U JPS6079213U (en) | 1983-11-02 | 1983-11-02 | Fireproof seal structure at penetration parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17036583U JPS6079213U (en) | 1983-11-02 | 1983-11-02 | Fireproof seal structure at penetration parts |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6079213U JPS6079213U (en) | 1985-06-01 |
| JPH0135530Y2 true JPH0135530Y2 (en) | 1989-10-30 |
Family
ID=30371940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17036583U Granted JPS6079213U (en) | 1983-11-02 | 1983-11-02 | Fireproof seal structure at penetration parts |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6079213U (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2729512B2 (en) * | 1989-06-21 | 1998-03-18 | 三菱電線工業株式会社 | Fire protection structure at cable floor penetration |
| JP2704294B2 (en) * | 1989-07-07 | 1998-01-26 | 三菱電線工業株式会社 | Fire protection structure at cable floor penetration |
-
1983
- 1983-11-02 JP JP17036583U patent/JPS6079213U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6079213U (en) | 1985-06-01 |
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