JPS61221511A - Detection for oil leak section of of-cable - Google Patents
Detection for oil leak section of of-cableInfo
- Publication number
- JPS61221511A JPS61221511A JP60060204A JP6020485A JPS61221511A JP S61221511 A JPS61221511 A JP S61221511A JP 60060204 A JP60060204 A JP 60060204A JP 6020485 A JP6020485 A JP 6020485A JP S61221511 A JPS61221511 A JP S61221511A
- Authority
- JP
- Japan
- Prior art keywords
- oil
- cable
- oil leak
- leak section
- junction box
- 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.)
- Granted
Links
- 238000001514 detection method Methods 0.000 title description 3
- 238000000034 method Methods 0.000 claims description 9
- 239000012530 fluid Substances 0.000 description 7
- 239000000700 radioactive tracer Substances 0.000 description 4
- 239000002828 fuel tank Substances 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 238000009933 burial Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
Landscapes
- Gas Or Oil Filled Cable Accessories (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
（発明の技術分野）
本発明は、複数条のＯＦケーブルを中間接続箱を介挿し
て直列に連結してなるケーブル線路を複数並列に設は友
場合のＯＦケーブルの油漏れ区間の検出方法に関する。Detailed Description of the Invention (Technical Field of the Invention) The present invention relates to an OF cable in which a plurality of cable lines, each of which is formed by connecting a plurality of OF cables in series with an intermediate junction box, are installed in parallel. This invention relates to a method for detecting an oil leak area.
（発明の技術的背景とその問題点）
布設さｆＬ２ＯＦケーブルの漏油区間を検出する方法と
しては種々の方法が提案されて込る。例えば！＃会昭４
９−３９９４７号公報に示されるように、ＯＦケーブル
内にトレーサー用流体を送入し、所定時間経過後、ＯＦ
ケーブル内の流体を採取し、この採取流体中のトレーサ
ー用流体の濃度を測定しこの濃度を゛送入し危トレーサ
ー用流体の濃度又は隣接するＯＦケーブル内から採取し
定流体中のトレーサー用流体のａ度とを比較することに
より、その濃度分布に基いて油漏れ区間を検出する方法
がある。しかしこのような検出方法は現場適用が困難で
あり、漏油区間の調査を適格に行い得ないことが多い。(Technical Background of the Invention and Problems Therewith) Various methods have been proposed for detecting oil leakage sections of installed fL2OF cables. for example! #kaisho4
As shown in Japanese Patent No. 9-39947, a tracer fluid is introduced into the OF cable, and after a predetermined period of time, the OF
Sample the fluid in the cable, measure the concentration of the tracer fluid in this sampled fluid, and inject this concentration to determine the concentration of the hazardous tracer fluid or the tracer fluid in the constant fluid sampled from the adjacent OF cable. There is a method of detecting an oil leak area based on the concentration distribution by comparing the a degrees of However, such detection methods are difficult to apply in the field, and it is often impossible to properly investigate oil leak areas.
し次がって、目視点検の可能な部分以外で油漏れが発生
し几場合は、実際にはマンホール内等の外部に漏油の症
状が現れるまで待つとか、ケーブル埋設ルートを部分的
に掘削する等の比較的原始的な調査が行われている。特
に漏油量が微少な場合には調査が困雅で６９、長期間を
要している。Next, if oil leaks occur in areas other than those that can be visually inspected, it may be necessary to wait until oil leak symptoms appear outside, such as in a manhole, or to partially excavate the cable burial route. Relatively primitive research is being conducted. In particular, when the amount of oil leaked is small, investigation is difficult69 and takes a long time.
（発明の目的）
本発明は、上記の事情に着目してなされｔもので、簡単
な操作で油漏れ区間の検出を行いうるＯＦケーブルの油
漏れ区間の検出方法を提供するものであるみ
（発明の概１
即ち、本発明の方法は、複数条のＯＦケーブルを中間接
続箱を介挿して直列に連結してなるケーブル線路を複数
並列に設は友場合において事故ケーブル線路と任意の健
全ケーブル線路との各一端にそれぞれ給油槽を接続する
と共に各他端を給油管を介して連結し、任意の中間接続
箱の油通路を閉じた状態で前記両ケーブル線路の各給油
槽内の油面又は油圧を対比し、油通路を閉じる中間接続
箱を逐次変えて前記対比を繰返し行うことにより油漏れ
区間を検出するものであって、ｔｌｒ九な測定装置等を
用いることなく油漏れ区間を簡単に検出することができ
る。(Objective of the Invention) The present invention has been made in view of the above-mentioned circumstances, and it is an object of the present invention to provide a method for detecting an oil leakage section of an OF cable, which can detect an oil leakage section with a simple operation. Summary of the Invention 1 That is, the method of the present invention is capable of connecting a faulty cable line and any healthy cable in a case where a plurality of cable lines each consisting of a plurality of OF cables connected in series with an intermediate junction box are installed in parallel. A fuel tank is connected to each end of the cable line, and each other end is connected via a fuel pipe, and with the oil passage of any intermediate junction box closed, the oil level in each fuel tank of both cable lines is adjusted. Alternatively, the oil leakage area is detected by comparing the oil pressure and repeating the comparison by sequentially changing the intermediate connection box that closes the oil passage, and it is possible to easily detect the oil leakage area without using a tlr measuring device etc. can be detected.
（発明の実捲倒） 以下、本発明を図に基いて説明する。(Revealing the fruits of invention) Hereinafter, the present invention will be explained based on the drawings.
図において、１０．２０は同一布設ルートに並列に設け
られた２つのケーブル線路であり、複数条のＯＦケーブ
ル１１．２１をそれぞれ中間接続箱１２．２２を介挿し
て直列に連結してなるものである。In the figure, 10.20 is two cable lines installed in parallel on the same installation route, each consisting of a plurality of OF cables 11.21 connected in series by interposing an intermediate junction box 12.22. It is.
各ケーブル線路１０．２０の各一端に給油槽１３．２３
が接続されている。Oil tank 13.23 at each end of each cable line 10.20
is connected.
このようなケーブル線路の一万１０に漏油事故（漏油点
を符号１４で示す。）が発生した場合、この事故ケーブ
ル線路１Ｇと健全ケーブル線路１１、との各他端を給油
管１５を介して連結する。つまり両ケーブル線路１０．
２０に両端から油圧を加え友状態とする。そして事故ケ
ーブル線路１１の任意の中間接続箱１２の仮泊上装置等
を操作し、油通路を閉じる。この状態で両ケーブル線路
の各給油槽１３・ ２３内の油面又に油圧を対比するよ
うにする。この対比によって漏油側の給油槽１３０油面
等が低下するから、油通路を閉じる位置を逐次変えて前
記対比を繰返し行うことにより油漏れ区間を検出する。If an oil leakage accident (the oil leakage point is indicated by reference numeral 14) occurs on such a cable line 10,10, the oil supply pipe 15 is connected to the other end of the accidental cable line 1G and the healthy cable line 11. Connect via. In other words, both cable lines 10.
Apply hydraulic pressure to 20 from both ends to bring it into a friendly state. Then, the temporary anchoring device or the like of any intermediate junction box 12 of the accident cable line 11 is operated to close the oil passage. In this state, the oil levels or oil pressures in the oil tanks 13 and 23 of both cable lines are compared. As a result of this comparison, the oil level in the oil supply tank 130 on the oil leak side is lowered, so by sequentially changing the position at which the oil passage is closed and repeating the comparison, the oil leak section is detected.
事故ケーブル線路と健全ケーブル線路の各給油槽が同一
レベルに設置されていれば、操作する仮泊上装置の両側
の油圧がバランスしているから仮油止装置の油止機構が
不完全な場合であっても油流抵抗が通常より増加するこ
とで、前記検出ができる。また各ケーブル線路の給油端
がバルブパネルにより連結することが簡単にできれば、
仮泊上装置の操作だけで、線路の停止も特に必要とせず
即ち＝−を線状態で油ｉれ区間の検出が可能である。If the oil tanks for the accident cable line and the sound cable line are installed at the same level, the oil pressure on both sides of the temporary berthing device to be operated will be balanced, so even if the oil stop mechanism of the temporary berthing device is incomplete, Even if there is, the above detection can be made because the oil flow resistance increases more than usual. Also, if the oil supply ends of each cable line could be easily connected by a valve panel,
It is possible to detect an oil-filled section by simply operating the temporary anchorage device and without the need to stop the track, that is, in the =- line condition.
ま友ケーブル線路内の油圧を利用することから、漏油量
が微少な場合でも漏油区間の検出を行いうる。Since the hydraulic pressure inside the Mayu cable track is used, it is possible to detect oil leakage sections even if the amount of oil leakage is minute.
（発明の効果）
以上、本発明の方法によれば、事故ケーブル線路と健全
ケーブル線路とを連結し、これらの線路にそれぞれ接続
された給油槽内の油面又は油圧を対比するだけであるか
ら、新たな測定装置を用いることなく簡単な操作で油漏
れ区間の検出を行うことができる。また微少の漏油事故
の場合でも短時間で検出できる。(Effects of the Invention) As described above, according to the method of the present invention, it is only necessary to connect the damaged cable line and the healthy cable line and compare the oil level or oil pressure in the oil tank connected to each of these lines. , the oil leak area can be detected with simple operations without using a new measuring device. Additionally, even small oil leaks can be detected in a short time.
図は本発明のＯＦケーブルの油漏れ区間の検出方法の一
実施例を示す概略説明図である。The figure is a schematic explanatory diagram showing an embodiment of the method for detecting an oil leak section of an OF cable according to the present invention.
Claims (1)
に連結してなるケーブル線路を複数並列に設けた場合に
おいて事故ケーブル線路と任意の健全ケーブル線路との
各一端にそれぞれ給油槽を接続すると共に、各他端を給
油管を介して連結し、任意の中間接続箱の油通路を閉じ
た状態で前記両ケーブル線路の各給油槽内の油面又は油
圧を対比し、油通路を閉じる中間接続箱を逐次変えて前
記対比を繰返し行うことにより油漏れ区間を検出するこ
とを特徴とするＯＦケーブルの油漏れ区間の検出方法。 ２、前記中間接続箱は仮油止機構を有するものである特
許請求の範囲属１項記載のＯＦケーブルの油漏れ区間の
検出方法。[Scope of Claims] 1. In the case where a plurality of cable lines each consisting of a plurality of OF cables connected in series with an intermediate junction box are provided in parallel, one end of each of the faulty cable line and any healthy cable line. Connect the oil tank to each of the cable lines, and connect the other ends of each via the oil pipe, and compare the oil level or oil pressure in each oil tank of both cable lines with the oil passage of any intermediate junction box closed. A method for detecting an oil leak section of an OF cable, characterized in that the oil leak section is detected by sequentially changing the intermediate connection box that closes the oil passage and repeating the comparison. 2. The method for detecting an oil leak section of an OF cable according to claim 1, wherein the intermediate junction box has a temporary oil stop mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6020485A JPH0612925B2 (en) | 1985-03-25 | 1985-03-25 | Method of detecting oil leak section of OF cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6020485A JPH0612925B2 (en) | 1985-03-25 | 1985-03-25 | Method of detecting oil leak section of OF cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61221511A true JPS61221511A (en) | 1986-10-01 |
| JPH0612925B2 JPH0612925B2 (en) | 1994-02-16 |
Family
ID=13135383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6020485A Expired - Lifetime JPH0612925B2 (en) | 1985-03-25 | 1985-03-25 | Method of detecting oil leak section of OF cable |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0612925B2 (en) |
-
1985
- 1985-03-25 JP JP6020485A patent/JPH0612925B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0612925B2 (en) | 1994-02-16 |
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