JPH0214245Y2 - - Google Patents

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Publication number
JPH0214245Y2
JPH0214245Y2 JP1982199647U JP19964782U JPH0214245Y2 JP H0214245 Y2 JPH0214245 Y2 JP H0214245Y2 JP 1982199647 U JP1982199647 U JP 1982199647U JP 19964782 U JP19964782 U JP 19964782U JP H0214245 Y2 JPH0214245 Y2 JP H0214245Y2
Authority
JP
Japan
Prior art keywords
coaming
heat insulating
heat
insulating material
electric wire
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
Application number
JP1982199647U
Other languages
Japanese (ja)
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JPS5999618U (en
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP19964782U priority Critical patent/JPS5999618U/en
Publication of JPS5999618U publication Critical patent/JPS5999618U/en
Application granted granted Critical
Publication of JPH0214245Y2 publication Critical patent/JPH0214245Y2/ja
Granted legal-status Critical Current

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Description

【考案の詳細な説明】[Detailed explanation of the idea]

本考案は、金属製隔壁の電線貫通部における防
熱構造に関し、特に船舶の鋼製隔壁あるいは甲板
の電線貫通部に用いて好適の防熱構造に関する。 従来の船舶における鋼製隔壁の電線貫通部で
は、第1図a,bにそれぞれ示すように、鋼製隔
壁1に防熱材2が張設され、電線4が貫通する隔
壁1の孔部周縁には金属製コーミング3が溶接に
より固定されている。 そして、このコーミング3内を貫通する電線4
が、コーミング3の内側に充填されている不燃材
5によつて、固定されている。 また、第2図は従来の鋼製甲板1′の電線貫通
部を示すもので、第1図a,bにそれぞれ示す鋼
製隔壁1の場合と同様に構成されている。 なお、第1図bおよび第2図bは、それぞれ第
1図aのb−b断面図および第2図aのb
−b断面図である。 ところで、従来の金属製隔壁の電線貫通部で
は、火災が一方の室で発生した場合、この火災に
よる熱が金属製コーミング3によつて他方の室
(非火災側)に伝導される。 このため非火災側における温度上昇は、国際規
格のSOLAS(International Convention for the
Safety of Life at Sea)−1974の規定を満足でき
ず、十分な防熱効果が得られないという問題点が
ある。 本考案は、このような問題点の解消をはかろう
とするもので、火災による熱が金属製コーミング
によつて非火災側に伝導するのを遮断して、十分
な防熱効果が得られるようにした、金属製隔壁の
電線貫通部防熱構造を提供することを目的とす
る。 このため本考案の金属製隔壁の電線貫通部防熱
構造は、金属製隔壁に張設された防熱材と、同隔
壁の孔部周縁に設けられた金属製コーミングと、
同コーミング内を貫通する電線を固定するように
同コーミングの内側に充充填された不燃材とをそ
なえ、上記コーミングの端部を覆つて上記防熱材
に接続するコーミング防熱材が設けられたことを
特徴としている。 以下、図面により本考案の一実施例としての金
属製隔壁の電線貫通部防熱構造を説明すると、第
3図はその要部断面図、第4図は第3図の−
断面図、第5図はその防熱構造を鋼製甲板に適用
した場合の要部断面図、第6図は第5図の−
断面図、第7図はその防熱構造を機器下部床に適
用した場合の要部断面図、第8図はその防熱構造
の作用を説明するための電線貫通部標準火災試験
のグラフである。 第3,4図に示すように、鋼製隔壁1に防熱材
2が張設されており、電線4が貫通する隔壁1の
孔部周縁には、金属製コーミング3が溶接されて
いる。 そして、電線4は、コーミング3内を貫通し、
このコーミング3の内側に不燃材5を充填するこ
とによつて固定されている。 さらに、コーミング3の端部と同様な断面形状
を持つ環状のコーミング防熱材6が、コーミング
3の端部を覆い、防熱材2に接続するように設け
られる。 このコーミング防熱材6の寸法a,bは任意に
選定できる。第3図の実施例では、寸法bはいず
れも防熱材2の厚さDと等しく、コーミング防熱
材6は電線4にほぼ接するが、隙間があつてもよ
い。また、第3図の実施例では、寸法aは防熱材
2の厚さDと等しいかもしくは厚さDの2分の1
の値のいずれかである。 また、コーミング防熱材6は、電線4の通る穴
を形成するため複数の防熱材ブロツクを組合わせ
て構成してもよく、あるいは防熱材の中央部をく
り抜いて電線4を通る穴を形成するようにしても
よい。 なお、防熱材2の厚さDは、コーミング3の隔
壁1からの突出量lに等しく、50〜150mm程度と
され、コーミング3の厚さLは200〜500mm程度と
される。 また、防熱材2およびコーミング防熱材6は、
ガラス繊維のごとき不燃材で形成することが望ま
しい。 本考案を鋼製甲板および機器下部床の電線貫通
部に適用する場合も同様の構成となるが、それぞ
れのコーミング防熱材6の形状について、次に説
明する。 第5,6図に示すように、鋼製甲板1′の電線
貫通部では、コーミング3の甲板1′からの突出
量1′(10〜50mm)が防熱材2の厚さD′(10〜150
mm)より小さいので、コーミング防熱材6′が、
コーミング3の端部を覆い防熱材2に接続して設
けられるよう断面L字形に形成され、その寸法
a′,b′は防熱材2の厚さD′に等しい。 また、第7図に示すように、機器下部床1″の
電線貫通部では、コーミング3の機器下部床1″
からの突出量l″が防熱材2の厚さD″(10〜150mm)
より大きいので、コーミング防熱材6″が、コー
ミング3の端部および側面を覆い防熱材2に接続
して設けられるような断面L字形に形成される。 その寸法a″は防熱材2の厚さD″もしくは
0.5D″に等しい。また、寸法b″は防熱材2の厚さ
D″に等しい。 一方、機器下部床1″とその上にある図示しな
い機器との間の距離mは、コーミング3の長さ
L″とその突出量l″との差より大きくなるように配
慮され、50〜300mm程度とされる。 なお、コーミング3の長さL′,L″はいずれも
200〜500mm程度である。 コーミング防熱材6,6′,6″の内側には不燃
材を充填して、電線4の外周を覆うようにしても
よい。 本考案の金属製隔壁の電線貫通部防熱構造は上
述のごとく構成されるので、コーミング3に沿う
伝熱がコーミング防熱材6により十分に遮断さ
れ、鋼製隔壁1で仕切られた一方の室で火災が発
生しても、他方の室への延焼を十分に阻止するこ
とができる。 なお、本考案の防熱構造について火災実験を行
なつた結果、第8図に示すように、コーミング3
の温度T3および電線4の温度T4は共に国際規格
に規定する数値を満足する測定値を得た。第8図
中の符号T5は不燃材5の温度を示す。 上記実験の条件等は、次のとおりである。 (i) 試験条件:電線貫通部(SOLAS,A−60級)
の標準火災試験として、海上人命安全条約の第
3規則定義2により行なわれる。 (ii) 炉内温度:標準火災曲線に沿う加熱曲線によ
る。 (iii) コーミング3のサイズ:板厚4.5mmの金属板
で210mm×60mmの方形断面をもつように形成さ
れ、長さは200mmとされた。 (iv) 貫通電線:上記コーミングの内部に、次の7
本の電線が分散配置された。 660V−TPYC−60…1本 660V−TPYC−14…1本 660V−TPYC−8…1本 250V−MPYC−5…1本 660V−TPYC−2…1本 250V−MPYC−12…1本 250V−MPYC−33…1本 (v) 火災発生側は、第3図の防熱材2を装備され
た側であり、温度上昇計測点は、第3図の防熱
材の装備されていない側である。 (vi) 温度計測個所:火災側の反対側において、上
記コーミング3の内部および外側で計測され、
その結果は第8図に示すとおりである。 (vii) 海上人命安全条約による温度上昇値の限度
は、同条約の第3規則定義3,4による。温度
計測は、3個所(T3,T4,T5)で行なわ
れ、
The present invention relates to a heat insulating structure for a wire penetrating portion of a metal bulkhead, and particularly to a heat insulating structure suitable for use in a wire penetrating portion of a steel bulkhead or deck of a ship. In a conventional ship where a wire passes through a steel bulkhead, as shown in FIGS. A metal coaming 3 is fixed by welding. An electric wire 4 passing through the coaming 3
is fixed by a noncombustible material 5 filled inside the coaming 3. Further, FIG. 2 shows a wire penetration portion of a conventional steel deck 1', which is constructed in the same manner as the steel bulkhead 1 shown in FIGS. 1a and 1b, respectively. Note that FIG. 1 b and FIG. 2 b are sectional views taken along line bb in FIG. 1 a and b in FIG.
-b sectional view. By the way, in the conventional electric wire penetration part of the metal partition wall, when a fire occurs in one room, the heat from the fire is conducted to the other room (non-fire side) by the metal coaming 3. Therefore, the temperature rise on the non-fire side is reduced by the international standard SOLAS (International Convention for the
The problem is that it does not meet the regulations of 1974 (Safety of Life at Sea) and does not provide sufficient heat insulation. The present invention attempts to solve these problems by blocking the conduction of heat from a fire to the non-fire side through the metal coaming, so as to obtain sufficient heat insulation effect. The object of the present invention is to provide a heat-insulating structure for an electric wire penetration part of a metal partition wall. Therefore, the heat insulation structure for the electric wire penetration part of the metal partition wall of the present invention includes a heat insulating material stretched over the metal partition wall, a metal coaming provided around the hole of the partition wall,
A coaming heat insulating material is provided, which is provided with a noncombustible material filled inside the coaming so as to fix the electric wires passing through the coaming, and which covers the end of the coaming and connects to the heat insulating material. It is a feature. Hereinafter, a heat insulation structure for a wire penetration part of a metal partition wall as an embodiment of the present invention will be explained with reference to the drawings. FIG. 3 is a sectional view of the main part thereof, and FIG.
A cross-sectional view, Figure 5 is a cross-sectional view of the main part when the heat insulation structure is applied to a steel deck, and Figure 6 is a cross-sectional view of the - of Figure 5.
7 is a cross-sectional view of the main part when the heat-insulating structure is applied to the lower floor of the equipment, and FIG. 8 is a graph of a standard fire test for electric wire penetrations to explain the action of the heat-insulating structure. As shown in FIGS. 3 and 4, a heat insulating material 2 is stretched over a steel partition 1, and a metal coaming 3 is welded to the periphery of a hole in the partition 1 through which an electric wire 4 passes. Then, the electric wire 4 penetrates inside the coaming 3,
The coaming 3 is fixed by filling the inside thereof with a noncombustible material 5. Furthermore, an annular combing heat insulator 6 having a cross-sectional shape similar to the end of the combing 3 is provided to cover the end of the combing 3 and to be connected to the heat insulator 2. The dimensions a and b of this combing heat insulating material 6 can be arbitrarily selected. In the embodiment shown in FIG. 3, the dimension b is equal to the thickness D of the heat insulating material 2, and the combed heat insulating material 6 is almost in contact with the electric wire 4, but there may be a gap. In addition, in the embodiment shown in FIG.
is one of the values of Further, the combing heat insulating material 6 may be constructed by combining a plurality of heat insulating material blocks to form a hole through which the electric wire 4 passes, or may be constructed by hollowing out the center of the heat insulating material to form a hole through which the electric wire 4 passes. You can also do this. The thickness D of the heat insulating material 2 is equal to the protrusion amount l of the combing 3 from the partition wall 1, and is approximately 50 to 150 mm, and the thickness L of the combing 3 is approximately 200 to 500 mm. In addition, the heat insulating material 2 and the combing heat insulating material 6 are
Preferably, it is made of a noncombustible material such as glass fiber. When the present invention is applied to a steel deck and an electric wire penetration part of a lower floor of equipment, a similar structure is obtained, and the shape of each coaming heat insulator 6 will be explained next. As shown in Figures 5 and 6, at the wire penetration part of the steel deck 1', the protrusion amount 1' (10 to 50 mm) of the coaming 3 from the deck 1' is equal to the thickness D' (10 to 50 mm) of the heat insulating material 2. 150
mm), so the combing insulation material 6' is
It is formed in an L-shape in cross section so as to cover the end of the coaming 3 and connect it to the heat insulating material 2.
a' and b' are equal to the thickness D' of the heat insulating material 2. In addition, as shown in FIG. 7, at the wire penetration part of the equipment lower floor 1'', the coaming 3
The amount of protrusion l″ is the thickness D″ of the heat insulating material 2 (10 to 150 mm)
Since the coaming heat insulator 6'' is larger, it is formed with an L-shaped cross section such that it covers the ends and sides of the coaming 3 and is connected to the heat insulator 2. Its dimension a'' is the thickness of the heat insulator 2. D″ or
Equal to 0.5D″. Also, dimension b″ is the thickness of heat shield material 2.
D". On the other hand, the distance m between the equipment lower floor 1" and the equipment (not shown) above it is equal to the length of the coaming 3.
It is designed to be larger than the difference between L'' and its protrusion amount l'', and is approximately 50 to 300 mm. In addition, the lengths L′ and L″ of combing 3 are both
It is about 200-500mm. The inside of the coaming heat insulators 6, 6', 6'' may be filled with a noncombustible material to cover the outer periphery of the electric wire 4. The heat insulating structure for the electric wire penetration part of the metal bulkhead of the present invention is constructed as described above. Therefore, heat transfer along the coaming 3 is sufficiently blocked by the coaming heat insulating material 6, and even if a fire occurs in one of the rooms partitioned by the steel partition wall 1, the spread of the fire to the other room is sufficiently prevented. In addition, as a result of conducting a fire experiment on the heat-insulating structure of the present invention, as shown in Fig. 8, the coaming 3
The temperature T 3 of the electric wire 4 and the temperature T 4 of the electric wire 4 were both measured values that satisfied the values specified in international standards. The symbol T 5 in FIG. 8 indicates the temperature of the noncombustible material 5. The conditions of the above experiment are as follows. (i) Test conditions: Wire penetration (SOLAS, A-60 class)
This standard fire test is carried out in accordance with Regulation 3, Definition 2 of the Convention for the Safety of Life at Sea. (ii) Furnace temperature: Based on a heating curve that follows the standard fire curve. (iii) Size of coaming 3: It was made of a metal plate with a thickness of 4.5 mm and had a rectangular cross section of 210 mm x 60 mm, and the length was 200 mm. (iv) Through-wire: Inside the above coaming, the following 7
The electric wires of the book were distributed. 660V-TPYC-60...1 660V-TPYC-14...1 660V-TPYC-8...1 250V-MPYC-5...1 660V-TPYC-2...1 250V-MPYC-12...1 250V- MPYC-33...1 piece (v) The side where the fire occurred is the side equipped with the heat shield 2 in Figure 3, and the temperature rise measurement point is the side without the heat shield in Figure 3. (vi) Temperature measurement points: On the opposite side to the fire side, temperature measurements are taken inside and outside the coaming 3,
The results are shown in FIG. (vii) The temperature rise limits under the Convention for the Safety of Life at Sea are in accordance with Regulation 3 Definitions 3 and 4 of the Convention. Temperature measurement is performed at three locations (T3, T4, T5),

【表】 となつて、上記条約に基づく試験に合格してい
る。 以上詳述したように、本考案の金属製隔壁の電
線貫通部防熱構造によれば、電線貫通部における
金属製コーミングの端部がコーミング防熱材で覆
われるので、万一火災が発生した場合でもコーミ
ングを介して非火災側に伝導される熱を確実に遮
断することが可能となり、電線貫通部における防
熱機能を十分に確保できる利点がある。
[Table] and has passed the examination based on the above treaty. As described in detail above, according to the heat insulation structure of the electric wire penetration part of the metal partition wall of the present invention, the end of the metal coaming in the electric wire penetration part is covered with the coaming heat insulating material, so even in the event of a fire, It is possible to reliably block the heat conducted to the non-fire side through the coaming, and there is an advantage that the heat insulation function at the wire penetration part can be sufficiently ensured.

【図面の簡単な説明】[Brief explanation of the drawing]

第1,2図は従来の金属製隔壁の電線貫通部を
示すもので、第1図は船舶における鋼製隔壁の電
線貫通部を示し、第1図aはその要部断面図、第
1図bは第1図aのb−b断面図、第2図は
船舶における鋼製甲板の電線貫通部を示し、第2
図aはその要部断面図、第2図bは第2図aの
b−b断面図であり、第3〜8図は本考案の一
実施例としての金属製隔壁の電線貫通部防熱構造
を示すもので、第3図はその要部断面図、第4図
は第3図の−断面図、第5図はその防熱材構
造を鋼製甲板に適用した場合の要部断面図、第6
図は第5図の−断面図、第7図はその防熱構
造を機器下部床に適用した場合の要部断面図、第
8図はその防熱構造の作用を説明するための電線
貫通部標準火災試験のグラフである。 1……鋼製隔壁、1′……鋼製甲板、1″……機
器下部床、2……防熱材、3……金属製コーミン
グ、4……電線、5……不燃材、6,6′,6″…
…コーミング防熱材。
Figures 1 and 2 show the electric wire penetration part of a conventional metal bulkhead, Figure 1 shows the electric wire penetration part of a steel bulkhead in a ship, and Figure 1a is a cross-sectional view of the main part. b is a sectional view taken along line bb in Fig. 1a, and Fig. 2 shows the electrical wire penetration part of the steel deck of a ship.
Figure a is a cross-sectional view of the main part thereof, Figure 2 b is a cross-sectional view taken along line b-b of Figure 2 a, and Figures 3 to 8 are heat-insulating structures for electric wire penetration parts of metal bulkheads as an embodiment of the present invention. Fig. 3 is a cross-sectional view of the main part, Fig. 4 is a cross-sectional view of the main part of Fig. 3, and Fig. 5 is a cross-sectional view of the main part when the heat insulating material structure is applied to a steel deck. 6
The figure is a cross-sectional view of Figure 5, Figure 7 is a cross-sectional view of the main part when the heat insulation structure is applied to the floor below the equipment, and Figure 8 is a standard fire at the wire penetration part to explain the action of the heat insulation structure. This is a graph of the test. 1...Steel bulkhead, 1'...Steel deck, 1''...Equipment lower floor, 2...Heat insulation material, 3...Metal coaming, 4...Electric wire, 5...Noncombustible material, 6,6 ′,6″…
... Combing heat insulation material.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 金属製隔壁に張設された防熱材と、同隔壁の孔
部周縁に設けられた金属製コーミングと、同コー
ミング内を貫通する電線を固定するように同コー
ミングの内側に充填された不燃材とをそなえ、上
記コーミングの端部を覆つて上記防熱材に接続す
るコーミング防熱材が設けられたことを特徴とす
る、金属製隔壁の電線貫通部防熱構造。
A heat insulating material stretched over a metal partition wall, a metal coaming provided around the hole in the partition wall, and a noncombustible material filled inside the coaming to secure the electric wires passing through the coaming. A heat insulating structure for an electric wire penetration part of a metal partition wall, characterized in that a coaming heat insulating material is provided which covers an end of the coaming and connects to the heat insulating material.
JP19964782U 1982-12-24 1982-12-24 Heat-insulating structure for wire penetrations in metal bulkheads Granted JPS5999618U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19964782U JPS5999618U (en) 1982-12-24 1982-12-24 Heat-insulating structure for wire penetrations in metal bulkheads

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19964782U JPS5999618U (en) 1982-12-24 1982-12-24 Heat-insulating structure for wire penetrations in metal bulkheads

Publications (2)

Publication Number Publication Date
JPS5999618U JPS5999618U (en) 1984-07-05
JPH0214245Y2 true JPH0214245Y2 (en) 1990-04-18

Family

ID=30425173

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19964782U Granted JPS5999618U (en) 1982-12-24 1982-12-24 Heat-insulating structure for wire penetrations in metal bulkheads

Country Status (1)

Country Link
JP (1) JPS5999618U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109720513A (en) * 2019-02-21 2019-05-07 中海石油(中国)有限公司 A kind of watertight isolation structure passing through watertight bulkhead for pipeline

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6211136Y2 (en) * 1981-02-19 1987-03-16
JPS5999619U (en) * 1982-12-24 1984-07-05 三菱重工業株式会社 Heat-insulating structure for wire penetrations in metal bulkheads

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109720513A (en) * 2019-02-21 2019-05-07 中海石油(中国)有限公司 A kind of watertight isolation structure passing through watertight bulkhead for pipeline

Also Published As

Publication number Publication date
JPS5999618U (en) 1984-07-05

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