JPH0353560Y2 - - Google Patents
Info
- Publication number
- JPH0353560Y2 JPH0353560Y2 JP5801983U JP5801983U JPH0353560Y2 JP H0353560 Y2 JPH0353560 Y2 JP H0353560Y2 JP 5801983 U JP5801983 U JP 5801983U JP 5801983 U JP5801983 U JP 5801983U JP H0353560 Y2 JPH0353560 Y2 JP H0353560Y2
- Authority
- JP
- Japan
- Prior art keywords
- lid
- trough
- pressure relief
- disaster prevention
- pressure
- 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
- 230000002265 prevention Effects 0.000 claims description 14
- 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
- 239000002990 reinforced plastic Substances 0.000 description 4
- 239000002360 explosive Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
Landscapes
- Laying Of Electric Cables Or Lines Outside (AREA)
Description
【考案の詳細な説明】
本考案は、超高圧ケーブルが収納される防災ト
ラフに関し、特にその放圧手段に関するものであ
る。[Detailed Description of the Invention] The present invention relates to a disaster prevention trough in which ultra-high voltage cables are housed, and in particular to its pressure relief means.
防災トラフは、コンクリート又は難燃性強化プ
ラスチツク製のトラフ本体と難燃性強化プラスチ
ツク製の蓋体とから成り、この蓋体はトラフ本体
に被ぶせられ結束バンドによつてトラフ本体に気
密に固定されている。この防災トラフはその難燃
性と気密性とによつてケーブル地絡時に発生する
ケーブルの火災が拡がるのを防止している。一
方、ケーブルの送電容量の増大によつて地絡時に
爆発性のガスを発生し、トラフを破壊しケーブル
の延焼が拡がるのでこのガスを放圧し放圧後直ち
に密閉する放圧手段を必要とする。従来技術の放
圧手段は、蓋体に間隔をあけて設けられた複数の
放圧弁から成つているが、この放圧弁は10Kg／cm3
以上の高い圧内に耐えることができないので破壊
しケーブルを延焼する欠点があつた。 The disaster prevention trough consists of a trough body made of concrete or flame-retardant reinforced plastic and a lid body made of flame-retardant reinforced plastic, which is placed over the trough body and airtightly fixed to the trough body with a cable tie. has been done. This disaster prevention trough prevents the spread of a cable fire that occurs in the event of a cable ground fault due to its flame retardant properties and airtightness. On the other hand, as the cable's power transmission capacity increases, explosive gas is generated in the event of a ground fault, which destroys the trough and spreads the cable fire. Therefore, a pressure relief means is required to release the pressure of this gas and seal it immediately after the pressure is released. . The pressure relief means of the prior art consists of a plurality of pressure relief valves provided at intervals on the lid, and these pressure relief valves have a pressure of 10Kg/cm 3
Since it cannot withstand such a high internal pressure, it has the disadvantage that it can break and cause fire to spread to the cable.
本考案の目的は、高い内圧を確実に放圧するこ
とができ、放圧後直ちに気密を保つことができる
防災トラフを提供することにある。 An object of the present invention is to provide a disaster prevention trough that can reliably release high internal pressure and maintain airtightness immediately after the pressure is released.
本考案の実施例を図面を参照してのべると、第
１図は本考案に係る防災トラフ１０を示し、この
防災トラフ１０はコンクリート製又は難燃性強化
プラスチツク製のトラフ本体１２と難燃性強化プ
ラスチツク製の蓋体１４とから成り、この蓋体１
４はトラフ本体１２に被ぶせられ長手方向に間隔
をあけて設けられた複数の結束バンド１６によつ
て気密に固定されている。尚、第１図において符
号１８は防災トラフ１０内に収納されたケーブル
である。 An embodiment of the present invention will be described with reference to the drawings. Fig. 1 shows a disaster prevention trough 10 according to the present invention, and the disaster prevention trough 10 has a trough body 12 made of concrete or flame-retardant reinforced plastic and It consists of a lid body 14 made of reinforced plastic, and this lid body 1
4 is airtightly fixed by a plurality of binding bands 16 which are placed over the trough body 12 and provided at intervals in the longitudinal direction. In addition, in FIG. 1, the reference numeral 18 is a cable housed within the disaster prevention trough 10.
放圧手段２０は、蓋体１４に間隔をあけて設け
られた複数の放圧孔２２とこの放圧孔を閉じるよ
うに蓋体の上面に設けられた閉板２４とから成
り、閉板２４はその両端の上面から蓋体１４及び
トラフ本体１２をめぐらせて設けられた複数のゴ
ムバンド２６，２６′によつて蓋体１４に密着さ
せられている。 The pressure relief means 20 consists of a plurality of pressure relief holes 22 provided at intervals in the lid 14 and a closing plate 24 provided on the upper surface of the lid so as to close the pressure relief holes. is tightly attached to the lid 14 by a plurality of rubber bands 26, 26' provided around the lid 14 and the trough body 12 from the upper surfaces of both ends thereof.
従つて、放圧手段２０の閉板２４は、通常では
第１図に示すようにゴムバンド２６，２６′によ
つて閉じられているので防災トラフ１０内は気密
が保たれている。ケーブルに地絡が起つて爆発性
ガスが発生すると、閉板２４は第２図に示すよう
にゴムバンド２６，２６′を伸ばしつつ上昇し放
圧孔２２を通してこのガスを放圧するが、圧力が
下降すると、閉板２４はゴムバンド２６，２６′
によつて直ちに閉じられて気密を保つので外部の
空気が防災トラフ１０内に流入することがなく、
ケーブルの延焼を防止することができる。 Therefore, since the closing plate 24 of the pressure relief means 20 is normally closed by rubber bands 26, 26' as shown in FIG. 1, the inside of the disaster prevention trough 10 is kept airtight. When a ground fault occurs in the cable and explosive gas is generated, the closing plate 24 rises while stretching the rubber bands 26, 26' as shown in FIG. 2, and releases the gas through the pressure release hole 22, but the pressure When lowered, the closing plate 24 is moved by the rubber bands 26, 26'
Since the trough is immediately closed and airtight, outside air does not flow into the disaster prevention trough 10.
It is possible to prevent the spread of fire to the cable.
本考案によれば、上記のように、ケーブルの地
絡時に発生するガスの圧力を有効に放圧し、放圧
後は直ちに気密を保つて空気が流入することがな
いのでケーブルの延焼を有効に防止することがで
きる実益がある。 According to the present invention, as mentioned above, the pressure of gas generated when a cable is grounded is effectively released, and after the pressure is released, it is immediately kept airtight and no air enters, which effectively prevents the spread of fire in the cable. There are practical benefits that can be prevented.
第１図は本考案に係る防災トラフの概略斜視
図、第２図は防災トラフの放圧時の側面図であ
る。
１０……防災トラフ、１２……トラフ本体、１
４……蓋体、１６……結束バンド、２０……放圧
手段、２２……放圧孔、２４……閉板、２６，２
６′……ゴムバンド。
FIG. 1 is a schematic perspective view of a disaster prevention trough according to the present invention, and FIG. 2 is a side view of the disaster prevention trough when pressure is released. 10...Disaster prevention trough, 12...Trough body, 1
4... Lid body, 16... Binding band, 20... Pressure relief means, 22... Pressure relief hole, 24... Closing plate, 26, 2
6'...Rubber band.
Claims (1)
束バンドで気密に固定される蓋体と、前記蓋体に
設けられ内部の圧力を放圧する放圧手段とから成
る防災トラフにおいて、前記放圧手段は前記蓋体
に設けられた放圧孔と前記放圧孔を閉じるように
前記蓋体の上面に設けられた閉板と前記閉板を前
記蓋体に密着するように設けられた複数のゴムバ
ンドとから成つていることを特徴とする防災トラ
フ。 A disaster prevention trough comprising a trough body, a lid covered with the trough body and airtightly fixed with a cable tie, and a pressure relief means provided on the lid to relieve internal pressure, wherein the pressure relief means is A pressure relief hole provided in the lid, a closing plate provided on the top surface of the lid so as to close the pressure relief hole, and a plurality of rubber bands provided to bring the closing plate into close contact with the lid. A disaster prevention trough comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5801983U JPS59164443U (en) | 1983-04-20 | 1983-04-20 | disaster prevention trough |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5801983U JPS59164443U (en) | 1983-04-20 | 1983-04-20 | disaster prevention trough |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59164443U JPS59164443U (en) | 1984-11-05 |
| JPH0353560Y2 true JPH0353560Y2 (en) | 1991-11-22 |
Family
ID=30188307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5801983U Granted JPS59164443U (en) | 1983-04-20 | 1983-04-20 | disaster prevention trough |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59164443U (en) |
-
1983
- 1983-04-20 JP JP5801983U patent/JPS59164443U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59164443U (en) | 1984-11-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ES2403125T3 (en) | Fire-resistant foam, construction elements therefrom, system for sealing an opening in a fireproof manner and procedure for sealing a wall opening in a sealed manner | |
| US4071043A (en) | Apparatus for protecting a water faucet or the like from freezing temperatures | |
| US4744488A (en) | Method and device for manufacturing a foam insulated water heater, and a foam insulated water heater construction | |
| EP0869303A3 (en) | Device for sealing a cable feedthrough | |
| JPH0343813Y2 (en) | ||
| CN112018714A (en) | Cable joint protection box | |
| NZ204059A (en) | Cable connection sheath with slide fastener | |
| US3001248A (en) | Double glazed sash | |
| KR102113976B1 (en) | Secure Air Tent | |
| JPS6033699Y2 (en) | disaster prevention trough | |
| US1337611A (en) | Valve for chambered heat-insulating- walls | |
| DE3425429C2 (en) | ||
| JPS5924613B2 (en) | disaster prevention trough | |
| JPH0226180Y2 (en) | ||
| JPH0213838Y2 (en) | ||
| US5095935A (en) | Patch for ruptured fluid tanks | |
| JPH0416079Y2 (en) | ||
| CN108054703A (en) | A kind of plugging structure for cable hole | |
| JPS6124891B2 (en) | ||
| CA2211214A1 (en) | Molded and encapsulated fire retardant material | |
| JPS6226985Y2 (en) | ||
| JPS6017868Y2 (en) | Oil release device for oil-filled electrical equipment | |
| CN208508487U (en) | Cable Conduit Seals | |
| JPS598034Y2 (en) | Sealing device | |
| JPS6034286Y2 (en) | Chlorate candle gas outlet seal |