JPH0326008B2 - - Google Patents
Info
- Publication number
- JPH0326008B2 JPH0326008B2 JP4437682A JP4437682A JPH0326008B2 JP H0326008 B2 JPH0326008 B2 JP H0326008B2 JP 4437682 A JP4437682 A JP 4437682A JP 4437682 A JP4437682 A JP 4437682A JP H0326008 B2 JPH0326008 B2 JP H0326008B2
- Authority
- JP
- Japan
- Prior art keywords
- cable
- fireproof
- floor
- cable penetration
- wall
- 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 - Lifetime
Links
- 230000035515 penetration Effects 0.000 claims description 34
- 238000003780 insertion Methods 0.000 claims description 6
- 230000037431 insertion Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 238000005192 partition Methods 0.000 claims 1
- 238000010276 construction Methods 0.000 description 10
- 239000000463 material Substances 0.000 description 6
- 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 4
- 239000003063 flame retardant Substances 0.000 description 4
- 238000004378 air conditioning Methods 0.000 description 3
- 239000003566 sealing material Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
Landscapes
- Electric Cable Installation (AREA)
- Installation Of Indoor Wiring (AREA)
Description
【発明の詳細な説明】
［発明の技術分野］
本発明は、床または壁のケーブル貫通部の施工
方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a method for constructing cable penetrations in floors or walls.
［発明の技術的背景］
床または壁で仕切られた防火区画にケーブルを
導入する場合には、ケーブルを床または壁に設け
たケーブル貫通口に貫通させた後、この床または
壁のケーブル貫通口に耐火隔壁を形成することが
行われている。[Technical background of the invention] When introducing a cable into a fire protection compartment partitioned by a floor or wall, the cable is passed through a cable penetration hole provided in the floor or wall, and then the cable penetration hole in the floor or wall is inserted. The formation of fireproof bulkheads is currently underway.
このような耐火隔壁としては、床または壁のケ
ーブル貫通口を、ケーブル挿通孔を有する防火板
で覆い、この防火板のケーブル挿通孔にケーブル
を挿通させた後、防火板と床または壁のケーブル
貫通口間に不燃材を充填させ、この上を防火板で
覆つた構造のものが知られている。 Such a fireproof bulkhead is constructed by covering the cable penetration hole in the floor or wall with a fireproof plate having a cable insertion hole, and after passing the cable through the cable insertion hole in the fireproof plate, the cable is inserted between the fireproof plate and the floor or wall. A structure is known in which a non-combustible material is filled between the through holes and a fireproof plate is placed over the non-combustible material.
［背景技術の問題点］
しかしてこのようなケーブル貫通部の施工は、
一般にケーブルを床または壁のケーブル貫通口に
貫通させてケーブルの仮設工事を行ない、工事完
了後に床または壁のケーブル貫通口へ所定の耐火
隔壁を形成する手順で行われていた。[Problems with the background technology] However, construction of such a cable penetration part is
Generally, temporary cable installation work is carried out by passing the cable through a cable penetration hole in the floor or wall, and after the construction is completed, a predetermined fireproof bulkhead is formed at the cable penetration hole in the floor or wall.
しかしながらこのような従来のケーブル貫通部
の施工方法では、工事完了まで床または壁のケー
ブル貫通口が開口しているため、工事中も空調の
必要な、例えば火力発電所等の中央制御室や計算
機室等においては、空調が不完全になつてしまう
という問題があり、またケーブル貫通口が床に形
成されている場合には、工事の際に生じるごみが
このケーブル貫通口から落下してしまうという欠
点があつた。 However, with such conventional cable penetration construction methods, the cable penetration in the floor or wall is left open until the construction is completed, which means that air conditioning is required even during construction, such as in central control rooms and computer rooms in thermal power plants, etc. In rooms, etc., there is a problem of incomplete air conditioning, and if cable penetration holes are formed in the floor, debris generated during construction can fall through the cable penetration holes. There were flaws.
［発明の目的］
本発明はかかる従来の欠点を解消すべくなされ
たもので、工事中においても床または壁のケーブ
ル貫通口を遮蔽可能な、床または壁のケーブル貫
通部の施工方法を提供しようとするものである。[Object of the Invention] The present invention was made in order to eliminate such conventional drawbacks, and it is an object of the present invention to provide a construction method for a cable penetration part in a floor or wall, which can shield the cable penetration part in the floor or wall even during construction. That is.
［発明の概要］
すなわち本発明のケーブル貫通部の施工方法
は、床または壁のケーブル貫通口を切れ目を設け
た伸縮性シートで遮蔽されたケーブル挿通孔を有
する防火板で覆い、この防火板のケーブル挿通孔
を挿通させてケーブルを床または壁のケーブル貫
通口に貫通させ、しかる後前記防火板に接して耐
火隔壁を形成することを特徴としている。[Summary of the Invention] That is, the method for constructing a cable penetration part of the present invention covers a cable penetration hole in a floor or wall with a fireproof board having a cable penetration hole that is shielded by an elastic sheet with cuts, and It is characterized in that the cable is passed through a cable insertion hole to pass through a cable penetration opening in a floor or wall, and then comes into contact with the fireproof plate to form a fireproof bulkhead.
［発明の実施例］
以下本発明の実施例を図面に基づいて説明す
る。[Embodiments of the Invention] Examples of the present invention will be described below based on the drawings.
第１図は本発明により形成された床のケーブル
貫通部の断面図である。この床のケーブル貫通部
は以下のようにして形成されている。 FIG. 1 is a cross-sectional view of a cable penetration in a floor formed in accordance with the present invention. The cable penetration part of this floor is formed as follows.
すなわち、まず床１のケーブル貫通口２を覆う
ように、床１の下面にボルトその他の任意の固定
手段により、防火板３が固定される。この防火板
３は、第２図および第３図にそれぞれ第１図の
−線に沿う平面図およびその−線に沿う拡
大断面図で示すように、２枚の耐火性の板、例え
ば金属板３ａ，３ｂに、それぞれ重ね合せたとき
一致するように複数のケーブル挿通用の長穴３ｃ
を穿設し、これらの金属板３ａ，３ｂ間に伸縮性
のシート、例えば難燃ゴムシート３ｄを挾んで一
体に接着するとともに、難燃ゴムシート３ｄの長
穴３ｃの部分に長手方向に切れ目３ｅを入れたも
のから成つている。 That is, first, the fireproof plate 3 is fixed to the lower surface of the floor 1 with bolts or other arbitrary fixing means so as to cover the cable penetration opening 2 of the floor 1. As shown in FIGS. 2 and 3, respectively, a plan view taken along the - line in FIG. 1 and an enlarged cross-sectional view taken along the - line in FIG. 3a and 3b have multiple elongated holes 3c for cable insertion so that they match when stacked on top of each other.
A stretchable sheet, such as a flame-retardant rubber sheet 3d, is sandwiched between these metal plates 3a and 3b and bonded together, and a cut is made in the longitudinal direction in the elongated hole 3c of the flame-retardant rubber sheet 3d. It is made up of 3e.
上記長穴３ｃの幅は挿通すべきケーブル４の外
径よりやや大となるようにされ、その長さは挿通
すべきケーブル外径に、この長穴に挿入すべきケ
ーブルの予定条数を乗じたものよりやや長くなる
ようにされている。 The width of the elongated hole 3c is set to be slightly larger than the outer diameter of the cable 4 to be inserted, and its length is calculated by multiplying the outer diameter of the cable to be inserted by the planned number of cables to be inserted into this elongated hole. It is made to be slightly longer than the original.
次にケーブル４を、上記した長穴３ｃの切れ目
３ｃに貫通させる。このとき長穴３ｃの部分の難
燃ゴムシート３ｄの切れ目３ｅは、ケーブル４に
より押し広げられるが、その伸縮性によりケーブ
ル４が挿通された部分以外の部分は閉じた状態を
保つ。 Next, the cable 4 is passed through the cut 3c of the elongated hole 3c described above. At this time, the cut 3e of the flame-retardant rubber sheet 3d at the elongated hole 3c is pushed open by the cable 4, but due to its elasticity, the part other than the part through which the cable 4 is inserted remains closed.
このようにして、予定条数のケーブル４を長穴
３ｃに挿通させて必要な仮設工事を行なつた後、
長穴３ｃの隙間に防火パテ５を充填し、床１のケ
ーブル貫通口２内にロツクウールやグラスフアイ
バーのような不燃材６を充填して、その上から例
えば流し込みタイプの防火シール材７を注入して
固化させる。なお、この場合不燃材６を使用せず
に、防火シール材７のみでケーブル貫通口２を充
填させたり、または不燃材６の上を他の防火板で
覆い、ケーブル４との隙間に防火パテを充填する
ようにしてもよい。 In this way, after inserting the planned number of cables 4 into the elongated holes 3c and performing the necessary temporary construction,
Fill the gap between the elongated holes 3c with fireproof putty 5, fill the cable penetration hole 2 of the floor 1 with a noncombustible material 6 such as rock wool or glass fiber, and pour, for example, a pour-in type fireproof sealing material 7 over the putty. and solidify. In this case, the cable penetration hole 2 may be filled with only the fireproof sealing material 7 without using the noncombustible material 6, or the top of the noncombustible material 6 may be covered with another fireproof plate and fireproof putty may be placed in the gap between it and the cable 4. It may be filled with.
以上の実施例は本発明を床のケーブル貫通部に
適用した例であるが、本発明はかかる実施例に限
定されるべきものではなく、壁のケーブル貫通部
にも同様に適用可能である。 Although the above embodiment is an example in which the present invention is applied to a cable penetration part in a floor, the present invention should not be limited to such an embodiment, and can be similarly applied to a cable penetration part in a wall.
［発明の効果］
以上説明したように本発明のケーブル貫通部の
施工方法によれば、ケーブル工事中においても床
または壁のケーブル貫通口を遮蔽することができ
るから空調が不完全になつたり、床のケーブル貫
通口からごみが落下したりするようなことはなく
なる。[Effects of the Invention] As explained above, according to the method for constructing a cable penetration part of the present invention, the cable penetration hole in the floor or wall can be shielded even during cable construction, so that air conditioning is not incomplete. There will be no more dust falling from the cable penetration hole on the floor.
第１図は本発明の実施例により形成されたケー
ブル貫通部の断面図、第２図は第１図の−線
に沿う本発明に使用する防火板の平面図、第３図
は第２図の−線に沿う拡大断面図である。
１……床、２……ケーブル貫通口、３……防火
板、３ａ，３ｂ……金属板、３ｃ……長穴、３ｄ
……難燃ゴムシート、３ｅ……切れ目、４……ケ
ーブル、５……防火パテ、６……不燃材、７……
防火シール材。
FIG. 1 is a sectional view of a cable penetration part formed according to an embodiment of the present invention, FIG. 2 is a plan view of a fireproof plate used in the present invention taken along the - line in FIG. 1, and FIG. FIG. 2 is an enlarged sectional view taken along the - line. 1...Floor, 2...Cable penetration port, 3...Fireproof plate, 3a, 3b...Metal plate, 3c...Elongated hole, 3d
...Flame retardant rubber sheet, 3e... Cut, 4... Cable, 5... Fire protection putty, 6... Noncombustible material, 7...
Fire sealing material.
Claims (1)
けた伸縮性シートで遮蔽されたケーブル挿通孔を
有する防火板で覆い、この防火板のケーブル挿通
孔を挿通させてケーブルを床または壁のケーブル
貫通口に貫通させ、しかる後前記防火板に接して
耐火隔壁を形成することを特徴とするケーブル貫
通部の施工方法。 ２ 耐火隔壁形成に際し防火板の挿通孔の隙間が
防火パテで覆われる特許請求の範囲第１項記載の
ケーブル貫通部の施工方法。[Scope of Claims] 1. A cable penetration hole in a floor or wall is covered with a fireproof board having a cable insertion hole that is shielded by a stretchable sheet with cuts, and the cable is inserted through the cable penetration hole of the fireproof board. 1. A method of constructing a cable penetration part, which comprises passing the cable through a cable penetration opening in a floor or wall, and then forming a fireproof bulkhead in contact with the fireproof board. 2. The method for constructing a cable penetration portion according to claim 1, wherein the gap between the insertion holes of the fireproof plate is covered with fireproof putty when forming the fireproof partition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57044376A JPS58163212A (en) | 1982-03-19 | 1982-03-19 | Method of machining cable passing unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57044376A JPS58163212A (en) | 1982-03-19 | 1982-03-19 | Method of machining cable passing unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58163212A JPS58163212A (en) | 1983-09-28 |
| JPH0326008B2 true JPH0326008B2 (en) | 1991-04-09 |
Family
ID=12689775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57044376A Granted JPS58163212A (en) | 1982-03-19 | 1982-03-19 | Method of machining cable passing unit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58163212A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6074912A (en) * | 1983-09-29 | 1985-04-27 | 昭和電線電纜株式会社 | Method of working cable passing portion |
| JP7300377B2 (en) * | 2019-08-09 | 2023-06-29 | 三菱重工業株式会社 | Seal structure, seal structure construction method, seal structure improvement method |
-
1982
- 1982-03-19 JP JP57044376A patent/JPS58163212A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58163212A (en) | 1983-09-28 |
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