JPS5943782Y2 - Fire protection structure for wire through holes - Google Patents
Fire protection structure for wire through holesInfo
- Publication number
- JPS5943782Y2 JPS5943782Y2 JP1975086097U JP8609775U JPS5943782Y2 JP S5943782 Y2 JPS5943782 Y2 JP S5943782Y2 JP 1975086097 U JP1975086097 U JP 1975086097U JP 8609775 U JP8609775 U JP 8609775U JP S5943782 Y2 JPS5943782 Y2 JP S5943782Y2
- Authority
- JP
- Japan
- Prior art keywords
- hole
- fire
- holes
- putty
- fire protection
- 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
Landscapes
- Installation Of Indoor Wiring (AREA)
Description
【考案の詳細な説明】
本考案は耐火性、防火性に優れ、かつ防煙性、非延焼性
に優れる電線貫通孔を提案するものであって、該貫通孔
の空隙部の一部又は全部に発泡性防火パテを充填してな
ることを特徴とするものである。[Detailed description of the invention] The present invention proposes an electric wire through hole that is excellent in fire resistance, fireproofing, smoke prevention, and non-spreading of fire, and in which part or all of the cavity of the through hole is It is characterized by being filled with foamable fireproof putty.
近年のビル火災の防火対策は消防法に基づいて厳しく規
制されるにおよび、ビル内に設けられた防火区域の隔壁
あるいは床部の電線貫通孔の耐火、防火性が強く車重れ
ている。In recent years, fire prevention measures for building fires have been strictly regulated based on the Fire Service Act, and fireproofing and fireproofing of bulkheads or electrical wire through holes in the floor of fireproof areas in buildings has become very important.
上記電線貫通孔に必要な耐火、防火性とは防火区域に設
けられている防火隔壁あるいは床の一方の側で火災が発
生した場合、ある一定時間たとえば人がビルの外部に避
難するに要する時間、電線の延焼を貫通孔で阻止し、か
つ発生する煙が貫通孔から他の区域に進入しないこと、
すなわち防煙性を有することが必須条件とされている。What is the fire resistance and fire resistance required for the above-mentioned electric wire penetration holes?If a fire breaks out on one side of a fire prevention bulkhead or floor installed in a fire prevention area, for example, the time required for people to evacuate to the outside of the building. , Preventing the spread of fire from the electric wires through the through-holes, and preventing the generated smoke from entering other areas through the through-holes;
In other words, it is an essential condition that the material has smoke-proof properties.
従来この種の貫通孔の構造として、電線と貫通孔との空
隙部にロックウール（岩綿）、ガラスファイバー、アス
ベストファイバー等の無機質の耐火性綿状断熱材を充填
し、更にその両端を支持体で固定し支持体と電線或は貫
通孔との空隙及び支持体の表面を防火塗料を適当な厚さ
にコテ又は手で塗り付ける方法が提案されている。Conventionally, the structure of this type of through-hole was to fill the gap between the wire and the through-hole with an inorganic fire-resistant cotton-like insulation material such as rock wool, glass fiber, or asbestos fiber, and then support both ends of the hole. A method has been proposed in which the support is fixed with a body and a fireproofing paint is applied to the gap between the support and the electric wire or the through hole and the surface of the support to an appropriate thickness using a trowel or by hand.
これらの防火構造における電線の延焼防止および防煙機
能は長さが１ｍ以上の特殊な貫通孔に有効と考えられる
が条件として厳しい通常の長さ１５〜４０Ｃｒｒ１の短
尺の貫通孔に対しては火災時の電線の焼は細りによって
生ずる間隙から延焼が進むと共に煙もその間隙から他の
区域に進入する危惧がある。The fire spread prevention and smoke prevention functions of electric wires in these fire protection structures are considered to be effective for special through holes with a length of 1 m or more, but there are strict conditions for short through holes with normal lengths of 15 to 40 Crr1. When electric wires burn, the fire spreads through the gaps created by the thinning of the wires, and there is a risk that smoke may also enter other areas through the gaps.
更に、防火塗料ば＝般に水分は有機溶媒を分散媒として
配合されたものであるがため厚塗りすればする程乾燥時
の収縮量が増し、乾燥塗膜の亀裂及び被塗物と塗模間に
すき間ができやすく、防火機能上杵１しくない。Furthermore, since water is generally mixed in fireproof paints using an organic solvent as a dispersion medium, the thicker the paint, the more it shrinks when drying, causing cracks in the dried paint film and damage to the coated object. Gaps easily form between the punches, and the fire prevention function is not good.
本考案は、発泡性防火パテを電線と貫通孔の空隙部に充
填することによって、上記欠点を改善した耐火性、防火
性貫通孔を提案するものである。The present invention proposes a fire-resistant through-hole that improves the above-mentioned drawbacks by filling the gap between the electric wire and the through-hole with foamable fire-retardant putty.
本考案に用いる発泡性防火パテとは高温に熱せられると
、自ら発泡し耐火性、断熱性に優れたスポンジ状炭化層
を形成する機能を有するものであって、電線が燃焼して
焼は細りを起し空隙ができても、スポンジ状炭化層が遂
次生成してその空隙を埋めるため電線の延焼および貫通
孔に煙が進入して行くことを防止する効果を生ずるもの
である。The foamable fireproofing putty used in this invention has the function of foaming on its own when heated to high temperatures, forming a spongy carbonized layer with excellent fire resistance and heat insulation. Even if voids are created due to the formation of a spongy carbonized layer, the voids are filled by the formation of a spongy carbonized layer, thereby producing the effect of preventing the spread of fire in the electric wire and the entry of smoke into the through-holes.
か＼る機能を有する発泡性防火パテの例としては、次の
ようなものがある。Examples of foamable fire-retardant putty having such a function are as follows.
（１）（ａ）ヘンタエリスリトール、トリエチレングリ
コール、ソルビトール等の多価アルコール類と、（ｂ）
メラミン、トリメチロールシラミン、ジシアンジアミド
等の加熱分解してＮ２．Ｃ０９ＣＯ２゜ＮＨ３等の不活
性ガスを放出する発泡剤と、（ｃ）ポリリン酸アンモニ
ウム、メラミンモノホスフェート、ウレアホスフェート
等の上記多価アルコール類に含１れているヒドロキシル
基と反応して発泡炭化膜を生成する機能を有する難燃性
脱水剤と、（ｄ）１００’Ｆの動粘度が工ＯＯｃ、Ｓｔ
〜Ｚｏｏ、０００ｅ、５ｔ（１ｃ、５ｔ＝１センチスト
一クス＝１センチポアズ／液体の密度）の液状有機物質
たとえばポリブテン、流動パラツイン、ジオクチルフタ
レート、ポリアルキレングリコール、液状ブタジェンゴ
ムの混合物であって、かつ（ａ）〜（ｃ）成分の混合物
１００重量部と（ａ）成分７０〜５７０重量部からなる
ものであって、かつ（ａ）〜（ｃ）成分の混合物中の（
ａ）成分、（ｂ）成分、又は（ｃ）成分のそれぞれは少
くとも１０重量係好寸しくは少くとも２０重量係含丑れ
るもの。(1) (a) polyhydric alcohols such as hentaerythritol, triethylene glycol, sorbitol, and (b)
Melamine, trimethylolsilamine, dicyandiamide, etc. are thermally decomposed to produce N2. A foaming carbonized membrane is formed by reacting with a blowing agent that releases an inert gas such as C09CO2゜NH3 and (c) the hydroxyl groups contained in the above polyhydric alcohols such as ammonium polyphosphate, melamine monophosphate, and ureaphosphate. (d) having a kinematic viscosity of 100'F
~ Zoo, 000e, 5t (1c, 5t = 1 centistoise = 1 centipoise/density of liquid) liquid organic substances such as polybutene, liquid paratyne, dioctyl phthalate, polyalkylene glycol, liquid butadiene rubber, and ( 100 parts by weight of the mixture of components a) to (c) and 70 to 570 parts by weight of component (a), and (a) to 570 parts by weight of the mixture of components (a) to (c)
Each of component a), component (b), or component (c) contains at least 10 weight percent, preferably at least 20 weight percent.
（２）上記（１）に示した（ａ）〜（ｄ）成分と（ｅ）
石けん系グリース、非石けん系グリース等のグリース類
の混合物であって、（ｅ）成分１．００重量部と（ａ）
−（ｃ）成分の混合物２００〜８００重量部と＜ｄ＞ｅ
、分２０〜１００重量部とからなるもの。(2) Components (a) to (d) shown in (1) above and (e)
A mixture of greases such as soap-based grease and non-soap-based grease, comprising 1.00 parts by weight of component (e) and (a).
- 200 to 800 parts by weight of a mixture of component (c) and <d>e
, 20 to 100 parts by weight.
これら発泡性防火パテは、常温で適度の可塑性と粘着性
を有するので電線の貫通部に容易に充填でき、かつ施工
個所に長期にわたって保持され得る。These foamable fireproofing putties have appropriate plasticity and tackiness at room temperature, so they can be easily filled into the areas through which electric wires pass, and can be maintained at the installation site for a long period of time.
更に、水或いは有機溶剤等の常温で揮発性の溶媒を全く
含寸ないので、それら分散媒の揮発に伴う施工後の体積
収縮やキレンの発生を起すことがなく、長期にわたり充
填状態の不備を来すことがない。Furthermore, since it does not contain any solvents that are volatile at room temperature, such as water or organic solvents, there is no volumetric shrinkage or generation of debris after installation due to the volatilization of these dispersion media, and there is no problem with filling conditions over a long period of time. It never comes.
以下、本考案を図面により説明する。The present invention will be explained below with reference to the drawings.
第１図は、本考案の１実施例の断面図であって、１は電
線貫通孔２を有する壁、３は該貫通孔を貫通する電線、
４は発泡性防火ノ２クチである。FIG. 1 is a cross-sectional view of one embodiment of the present invention, in which 1 is a wall having a wire through hole 2, 3 is an electric wire passing through the through hole,
4 is the second mouth of foaming fireproofing material.
パテ４は図では貫通孔の中央部のみに充填されているが
、本考案では貫通孔の全部をパテで充填しても勿論よい
が、パテは前記した通り火災に遭遇して発泡し自らの体
積が増大するので、図示の通り一部分の充填のみで効果
がある。In the figure, putty 4 is filled only in the center of the through hole, but in the present invention, it is of course possible to fill the entire through hole with putty, but as mentioned above, the putty foams when exposed to fire and forms its own foam. Due to the increased volume, only partial filling is effective as shown.
パテの発泡による膨張の程度を予め調べておき、完全発
泡したとき貫通孔２を丁度全体に広がる程度の量とする
方が貫通孔全体にパテを充填するよりもむしろ好捷しい
。It is better to check in advance the degree of expansion of the putty due to foaming, and to fill the through hole 2 with the putty in an amount that will just cover the entire through hole when the putty is completely foamed than to fill the entire through hole with putty.
その理由は、パテを多量に充填したときは、発泡の際パ
テの発泡物が貫通孔より溢れ出て自重又は火災時の風力
等によって溢れ出た部分が落下又は剥脱し、その際に貫
通孔内部の発泡物の一部と一緒に剥脱する場合があるか
らである。The reason for this is that when a large amount of putty is filled, the foamed material of the putty overflows from the through hole during foaming, and the overflowing part falls or peels off due to its own weight or wind force during a fire. This is because it may peel off together with a part of the foam inside.
本考案は、水平、垂直の貫通孔のいずれにも適用出来る
。The present invention can be applied to both horizontal and vertical through holes.
なお、垂直の貫通孔に適用する場合において、パテの発
泡物７５咄重で落下する懸念がある場合、貫通孔の下部
開放口に適当な耐火性の受は体を施すと一層好ましい。When applied to a vertical through hole, if there is a concern that the putty foam may fall under the weight of the putty foam, it is more preferable to provide a suitable fire-resistant cover at the lower opening of the through hole.
か＼る受は体は、金属、難燃性の有機物質等からなる板
状体、網状体等が適している。A plate-like body, a mesh-like body, etc. made of metal, a flame-retardant organic material, etc. are suitable for the body of the receiver.
特に好捷しい受は体の材質は、前記本考案に使用する例
示のパテの（ａ）成分と（ｂ）成分と（ｃ）成分との前
記比の混合物を塩素化ポリエチレン、ポリクロロプレン
、エピクロルヒドリンゴム、ポリ塩化ビニル、ムーニー
粘度４０以上の非のロダン含有ゴム類、メルトインデッ
クス１０以下の非ハロゲン含有プラスチックス類等の高
分子物質１００重量部あたり６０〜５７０重量部配合し
てなる組成物の成形体、又は該組成物を化学架橋、照射
架橋等により成形架橋してなる成形体である。Particularly preferable materials for the receiving body include chlorinated polyethylene, polychloroprene, or epichlorohydrin, which is a mixture of components (a), (b), and (c) in the above-mentioned ratios of the putty used in the present invention. A composition containing 60 to 570 parts by weight per 100 parts by weight of a polymeric substance such as rubber, polyvinyl chloride, non-rodan-containing rubbers with a Mooney viscosity of 40 or more, and non-halogen-containing plastics with a melt index of 10 or less. It is a molded article, or a molded article obtained by molding and crosslinking the composition by chemical crosslinking, irradiation crosslinking, or the like.
上記受は体は、貫通孔の下部開放口を完全に閉塞する板
状又ははめ込み形の形状のものとしてもよく、あるいは
受は網状としてもよい。The body of the receiver may be in the form of a plate or an inset shape that completely closes the lower opening of the through hole, or the receiver may be in the shape of a net.
第１図は本考案の実施例の断面図であって、は壁、２は
貫通孔、
テである。
３は電線、
４は発泡性防火パFIG. 1 is a sectional view of an embodiment of the present invention, where 2 is a wall, 2 is a through hole, and 2 is a through hole. 3 is electric wire, 4 is fireproof foam
Claims (1)
と該貫通孔内面との間隙部に１００下の動粘度が１００
−１００，０００ｃ、Ｓｔの液状有機物質を分散媒とし
て含む発泡性防火パテを充填して成ることを特徴とする
電線貫通孔の防火構造。The kinematic viscosity of 100 or less in the gap between the electric wire inserted into the electric wire through hole in the wall or floor etc. and the inner surface of the through hole is
A fire protection structure for an electric wire through hole, characterized in that it is filled with a foamable fire protection putty containing a liquid organic substance of -100,000c, St as a dispersion medium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1975086097U JPS5943782Y2 (en) | 1975-06-20 | 1975-06-20 | Fire protection structure for wire through holes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1975086097U JPS5943782Y2 (en) | 1975-06-20 | 1975-06-20 | Fire protection structure for wire through holes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS52695U JPS52695U (en) | 1977-01-06 |
| JPS5943782Y2 true JPS5943782Y2 (en) | 1984-12-27 |
Family
ID=28568497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1975086097U Expired JPS5943782Y2 (en) | 1975-06-20 | 1975-06-20 | Fire protection structure for wire through holes |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5943782Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006125209A (en) * | 2004-10-26 | 2006-05-18 | Kayaba Ind Co Ltd | Vane pump for cvt |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5434231Y2 (en) * | 1974-05-20 | 1979-10-19 |
-
1975
- 1975-06-20 JP JP1975086097U patent/JPS5943782Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS52695U (en) | 1977-01-06 |
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