JPH0590339U - Leak detection cable - Google Patents
Leak detection cableInfo
- Publication number
- JPH0590339U JPH0590339U JP2888992U JP2888992U JPH0590339U JP H0590339 U JPH0590339 U JP H0590339U JP 2888992 U JP2888992 U JP 2888992U JP 2888992 U JP2888992 U JP 2888992U JP H0590339 U JPH0590339 U JP H0590339U
- Authority
- JP
- Japan
- Prior art keywords
- water
- leak detection
- return line
- insulating
- water leakage
- 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.)
- Pending
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- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
(57)【要約】
【目的】本考案は、絶縁抵抗が大きな液体の漏水発生を
確実に検知可能とする漏水検知ケーブルを提供すること
を、その目的とする。
【構成】漏水検知ケーブル１は、長手方向に平行に配さ
れた一対のステンレスなどで構成された導体電極（丸線
導体）２，２に各々絶縁部材の繊維で構成され，導電イ
オン（塩水等）を含侵させた編組１１を被覆してなる検
知線１２，１２を並列に配した漏水検知部６と導体３，
３に絶縁被覆４，４を施したコア線５，５で構成された
戻り線部８を備え、これらの下面に絶縁層９Ａと接着剤
層９Ｂとからなる絶縁性テープ９を接着剤層９Ｂを上に
して配するとともに、漏水検知部６と戻り線部８の上面
に絶縁性で、かつ全面にランダム状に空孔７Ａ，７Ａ
（パンチ加工）を設けた透水性絶縁テープ７を配して、
これら漏水検知部６と戻り線部８とを絶縁性テープ９に
接合し一体化した構成となっている。
(57) [Summary] [Object] An object of the present invention is to provide a water leakage detection cable capable of reliably detecting the water leakage of a liquid having a large insulation resistance. [Structure] The water leakage detection cable 1 is composed of a pair of conductor electrodes (round wire conductors) 2 made of stainless steel or the like arranged in parallel in the longitudinal direction and made of fibers of an insulating member. ) Is impregnated into the braid 11 and the detection lines 12 and 12 formed in parallel are arranged in parallel, and the water leakage detection unit 6 and the conductor 3 are provided.
3 is provided with a return line portion 8 composed of core wires 5 and 5 with insulating coatings 4 and 4, and an insulating tape 9 composed of an insulating layer 9A and an adhesive layer 9B is provided on the lower surface of the return line portion 8 and an adhesive layer 9B. The upper surface of the leak detection unit 6 and the return line unit 8 with insulation, and the holes 7A, 7A are randomly formed on the entire surface.
Arrange the water-permeable insulating tape 7 provided with (punching),
The water leak detection unit 6 and the return line unit 8 are joined to and integrated with the insulating tape 9.
Description
【０００１】[0001]
本考案は、漏水検知ケーブルの改良に関する。 The present invention relates to improvement of a water leak detection cable.
【０００２】[0002]
近年、オフィスオートメーション化が進み、インテリジェントビルが多数建設 されるようになった。そのためビル内に電子計算機や各種の電気設備が設置され るようになり、これら各電気設備を結露やビル内の水漏れによる被害から守るた めに、電気設備の周囲に水検知器を配置して、水漏れによる被害を最小限にする ことが必須要件となっている。 本出願人は、先に漏水検知及び漏水発生位置を特定できる、「漏水検知システ ム」を開発した（特願平１−１４２５５０号）。 この漏水検知システムは、一対の漏水検知線と一対の戻り線とを長手方向に平 行に配置して、一体化した漏水検知ケーブルを使用することにより、実現される ようになっている。 In recent years, office automation has advanced and many intelligent buildings have been constructed. As a result, computers and various electrical equipment will be installed in the building, and in order to protect each of these electrical equipment from damage caused by dew condensation and water leakage in the building, a water detector is placed around the electrical equipment. Therefore, it is an essential requirement to minimize the damage caused by water leakage. The applicant of the present invention has previously developed a "leakage detection system" capable of detecting water leakage and specifying the location of water leakage (Japanese Patent Application No. 1-142550). This water leak detection system is realized by arranging a pair of water leak detection lines and a pair of return lines horizontally in the longitudinal direction and using an integrated water leak detection cable.
【０００３】 図４乃至図６に示す漏水検知ケーブル２０は、長手方向に平行に配された一対 のステンレスなどで構成された導体電極（丸線導体）２，２で構成された漏水検 知部６と前記導体電極２，２と平行に配された導体３，３に絶縁被覆４，４を施 した一対のコア線５，５で構成された戻り線部８とを備え、これらの下面に絶縁 層９Ａと接着剤層９Ｂとからなる絶縁性テープ９を接着剤層９Ｂを上にして配す るとともに、漏水検知部６と戻り線部８の上面に絶縁性で、かつ全面にランダム 状に空孔７Ａ，７Ａ（パンチ加工）を設けた透水性絶縁テープ７を配して、これ ら漏水検知部６と戻り線部８とを絶縁性テープ９に接合し一体化した構成となっ ている。A water leak detection cable 20 shown in FIGS. 4 to 6 is a water leak detection unit composed of a pair of conductor electrodes (circular wire conductors) 2 formed of stainless steel or the like arranged in parallel in the longitudinal direction. 6 and a return line portion 8 composed of a pair of core wires 5 and 5 in which insulating coatings 4 and 4 are applied to the conductors 3 and 3 arranged in parallel with the conductor electrodes 2 and 2, and the lower surfaces of these are provided. An insulating tape 9 composed of an insulating layer 9A and an adhesive layer 9B is arranged with the adhesive layer 9B facing upward, and the upper surfaces of the water leak detection unit 6 and the return line unit 8 are insulative and are randomly formed over the entire surface. A water-permeable insulating tape 7 provided with holes 7A, 7A (punched) is arranged on the insulating tape 9 and the leak detection unit 6 and the return line unit 8 are joined to the insulating tape 9 to be integrated. There is.
【０００４】 前記導体電極２，２，導体３，３は、２８ＡＷＧサイズ（断面積０．０９３ ［mm2 ］，７本／０．１３［mm］単線２ａ，２ａまたは導体３ａ，３ａを、より ピッチ６［mm］以下で撚り合わせた構成となっている。The conductor electrodes 2, 2, 3 and 3 are 28 AWG size (cross-sectional area 0.093 [mm 2 ], 7 / 0.13 [mm] single wires 2 a, 2 a or conductors 3 a, 3 a It has a structure in which the pitch is 6 [mm] or less.
【０００５】 前記絶縁被覆４，４は、耐熱性，可撓性を考慮して耐熱ＰＶＣ，ＥＴＦＥ，Ｆ ＥＰを用いた被覆厚０．１５［mm］となっている。 また、前記透水性絶縁テープ７は、ポリエステルテープ（プラスチックテープ ）で構成されている。 このように構成された漏水検知ケーブル２０は、透水性絶縁テープ７の上面に 一滴の水溶液（水，酸，アルカリ等の水溶液を含む）をたらせば、互いに絶縁状 態にある一対の導体電極２，２間が水溶液を介して短絡されることになり、導体 電極２，２の端末部に設けられた検知器（図示せず）で導体電極２，２間の絶縁 抵抗値の変化を検知することにより、漏水の発生を検知する。The insulating coatings 4 and 4 have a coating thickness of 0.15 [mm] using heat resistant PVC, ETFE, and FEP in consideration of heat resistance and flexibility. The water-permeable insulating tape 7 is composed of polyester tape (plastic tape). The water leak detection cable 20 configured as described above has a pair of conductor electrodes that are in an insulated state when a drop of an aqueous solution (including an aqueous solution of water, acid, alkali, etc.) is placed on the upper surface of the water-permeable insulating tape 7. 2 and 2 will be short-circuited via the aqueous solution, and a detector (not shown) provided at the end of the conductor electrodes 2 and 2 will detect a change in the insulation resistance value between the conductor electrodes 2 and 2. By doing so, the occurrence of water leakage is detected.
【０００６】[0006]
上記従来例による漏水検知ケーブル２０は、漏水が発生した場合に、漏水検知 部６に漏水が浸透して導体電極２，２間の絶縁抵抗値が低下（短絡状態）するこ とにより、漏水発生と判断するとともに、その漏水位置を検知するシステムにな っている。しかしながら、漏水が水道水等のように絶縁抵抗が低い液体の場合は 漏水検知が可能であるが、例えば半導体製造工場内の純水（超純水）を取扱う場 所に配された場合は、純水の絶縁抵抗が大きいため、例え漏水検知部６に純水が 浸透したとしても、実質的に漏水発生を検知できないという不都合があった。 In the water leak detection cable 20 according to the above conventional example, when water leak occurs, the water leaks into the water leak detection unit 6 and the insulation resistance value between the conductor electrodes 2 and 2 decreases (short circuit state), so that water leak occurs. In addition to the above, the system is designed to detect the leak position. However, if the leaked water is a liquid with low insulation resistance such as tap water, it is possible to detect the leaked water. However, for example, if it is placed in a place where pure water (ultra pure water) is handled in a semiconductor manufacturing plant, Since the pure water has a large insulation resistance, even if the pure water permeates the water leak detecting portion 6, the occurrence of the water leak cannot be substantially detected.
【０００７】[0007]
本考案は上記従来例の有する不都合を改善し、絶縁抵抗が大きな液体の漏水発 生を確実に検知可能とする漏水検知ケーブルを提供することを、その目的とする 。 SUMMARY OF THE INVENTION It is an object of the present invention to provide a water leakage detection cable that improves the disadvantages of the above conventional example and can reliably detect the water leakage generation of a liquid having a large insulation resistance.
【０００８】[0008]
そこで本考案では、上下２枚の絶縁テープのうち，少なくとも一方の絶縁テー プを透水性テープとし、これら絶縁テープ間に，導線を透水性の編組で被覆した ２条のケーブルを長手方向に並列に配した漏水検知ケーブルであって、前記透水 性の編組に導電イオンを含浸させるという構成を採用することにより、前記目的 を達成しようとするものである。 Therefore, in the present invention, at least one of the upper and lower insulating tapes is made of a water-permeable tape, and two cables in which conductors are coated with a water-permeable braid are arranged in parallel in the longitudinal direction between these insulating tapes. The water leakage detecting cable arranged in the first embodiment is intended to achieve the above object by adopting a structure in which the water-permeable braid is impregnated with conductive ions.
【０００９】[0009]
以下、本考案に係る一実施例を第１図乃至第３図に基づいて説明する。ここで 、上記従来例と同一の構成部材には同一の付号を付すものとする。 An embodiment according to the present invention will be described below with reference to FIGS. 1 to 3. Here, the same components as those in the above-mentioned conventional example are designated by the same reference numerals.
【００１０】 図１に示す漏水検知ケーブル１は、長手方向に平行に配された一対のステンレ スなどで構成された導体電極（丸線導体）２，２に各々絶縁部材の繊維で構成さ れ，導電イオン（塩水等）を含侵させた編組１１を被覆してなる検知線１２，１ ２を並列に配した漏水検知部６と導体３，３に絶縁被覆４，４を施したコア線５ ，５で構成された戻り線部８を備え、これらの下面に絶縁層９Ａと接着剤層９Ｂ とからなる絶縁性テープ９を接着剤層９Ｂを上にして配するとともに、漏水検知 部６と戻り線部８の上面に絶縁性で、かつ全面にランダム状に空孔７Ａ，７Ａ（ パンチ加工）を設けた透水性絶縁テープ７を配して、これら漏水検知部６と戻り 線部８とを絶縁性テープ９に接合し一体化した構成となっている。The water leak detection cable 1 shown in FIG. 1 is composed of conductor electrodes (circular wire conductors) 2 formed of a pair of stainless steels arranged in parallel with the longitudinal direction and made of fibers of an insulating member. , A leak detection part 6 in which detection wires 12 and 12 covering a braid 11 impregnated with conductive ions (such as salt water) are arranged in parallel, and a core wire in which insulation coatings 4 and 4 are applied to the conductors 3 and 3. 5, a return line portion 8 composed of 5 and 5 is provided, and an insulating tape 9 composed of an insulating layer 9A and an adhesive layer 9B is arranged on the lower surface of the return line portion 8 with the adhesive layer 9B facing upward, and the water leakage detecting portion 6 And a water-permeable insulating tape 7 which is insulative and has holes 7A, 7A (punched) randomly formed on the entire surface of the return line portion 8 and the leak detection portion 6 and the return line portion 8 And the insulating tape 9 are joined and integrated.
【００１１】 前記導体電極２，２，導体３，３は、２８ＡＷＧサイズ（断面積０．０９３ ［mm2 ］，７本／０．１３［mm］単線２ａ，２ａまたは導体３ａ，３ａ，…，３ ａを、よりピッチ６［mm］以下で撚り合わせた構成となっている。The conductor electrodes 2, 2, 3 and 3 are of 28 AWG size (cross-sectional area 0.093 [mm 2 ], 7 / 0.13 [mm] single wires 2 a, 2 a or conductors 3 a, 3 a, ... 3a is twisted with a pitch of 6 mm or less.
【００１２】 前記絶縁被覆４，４は、耐熱性，可撓性を考慮して耐熱ＰＶＣ，ＥＴＦＥ，Ｆ ＥＰを用いた被覆厚０．１５［mm］となっている。 また、前記透水性絶縁テープ７は、ポリエステルテープ（プラスチックテープ ）で構成されている。 このように構成された漏水検知ケーブル１は、透水性絶縁テープ７の上面に一 滴の水溶液，例えば絶縁抵抗の大きな超純水をたらしたとしても、互いに絶縁状 態にある一対の導体電極２，２間が、編組１１に含侵された導電イオンが水溶液 中に混入することによって、電気抵抗が低下し短絡されることになり、導体電極 ２，２の端末部に設けられた検知器（図示せず）で導体電極２，２間の絶縁抵抗 値の変化を検知することにより、漏水の発生を検知するようになっている。The insulating coatings 4 and 4 have a coating thickness of 0.15 [mm] using heat resistant PVC, ETFE, and FEP in consideration of heat resistance and flexibility. The water permeable insulating tape 7 is made of polyester tape (plastic tape). The water leakage detection cable 1 thus configured has a pair of conductor electrodes 2 that are in an insulating state even if a drop of aqueous solution, for example, ultrapure water having a large insulation resistance, is applied to the upper surface of the water-permeable insulating tape 7. , 2 is mixed with the conductive ions impregnated in the braid 11 in the aqueous solution, the electrical resistance is reduced and short-circuited, and the detector (provided at the end of the conductor electrodes 2, 2) ( The occurrence of water leakage is detected by detecting a change in the insulation resistance value between the conductor electrodes 2 and 2 (not shown).
【００１３】 本実施例は、以上のように構成されているので、絶縁抵抗が大きな液状体の漏 水であっても確実に漏水検知判断可能な漏水検知ケーブルを提供できる。Since the present embodiment is configured as described above, it is possible to provide a water leak detection cable capable of reliably making a water leak detection judgment even for water leak of a liquid material having a large insulation resistance.
【００１４】 なお、本実施例では、漏水検知部６，戻り線部８をそれぞれ丸線導体としたが 、これは平角線であってもよく、また、漏水検知部６，戻り線部８の両面に透水 性絶縁テープ７または、同様の機能をもつ不織布等を配する構成としてもよい。 更にまた、戻り線部８は必要に応じて設ければよく、漏水位置検知機能を必要と しない場合には、特に設けなくてもよい。一方、本実施例の場合、裏面も透水性 絶縁テープ７としてもよく、接着剤テープを全面にランダム状に空孔７Ａ，７Ａ （パンチ加工）を構成したものとしてもよい。In this embodiment, the water leak detection unit 6 and the return line unit 8 are round wire conductors, but they may be rectangular wires, and the water leak detection unit 6 and the return line unit 8 may have different shapes. The water-permeable insulating tape 7 or a non-woven fabric having a similar function may be arranged on both sides. Furthermore, the return line portion 8 may be provided if necessary, and may not be provided particularly when the function of detecting the water leakage position is not required. On the other hand, in the case of this embodiment, the back surface may be the water-permeable insulating tape 7, or the adhesive tape may be formed with holes 7A, 7A (punched) in a random pattern over the entire surface.
【００１５】 また、透水性絶縁テープ７空孔７Ａは円形に限らず、矩形状であってもよい。Further, the holes 7A of the water-permeable insulating tape 7 are not limited to a circular shape, but may be a rectangular shape.
【００１６】[0016]
本考案は以上のように構成されているので、絶縁抵抗が大きな液体の漏水発生 を確実に検知可能とする漏水検知ケーブルを提供できる。 Since the present invention is configured as described above, it is possible to provide a water leak detection cable that can reliably detect the occurrence of water leak of a liquid having a large insulation resistance.
【図１】本考案の一実施例に係る漏水検知ケーブルの組
立て工程説明図FIG. 1 is an explanatory view of an assembling process of a water leak detection cable according to an embodiment of the present invention.
【図２】図１に示す漏水検知ケーブルの斜視図FIG. 2 is a perspective view of the water leak detection cable shown in FIG.
【図３】本実施例に係る漏水検知ケーブルの断面構成図FIG. 3 is a cross-sectional configuration diagram of a water leakage detection cable according to this embodiment.
【図４】従来例に係る漏水検知ケーブルの組立て工程説
明図FIG. 4 is an explanatory view of an assembling process of a water leakage detection cable according to a conventional example.
【図５】図４に示す漏水検知ケーブルの斜視図5 is a perspective view of the water leak detection cable shown in FIG.
【図６】従来例に係る漏水検知ケーブルの断面構成図FIG. 6 is a cross-sectional configuration diagram of a water leakage detection cable according to a conventional example.
１……………漏水検知ケーブル ２……………導体電極 ３……………導体 ５……………コア線 ６……………漏水検知部 ７……………透水性絶縁テープ ８……………戻り線部 ９……………絶縁性テープ １１…………編組 １２…………検知線 ７Ａ…………空孔 1 …………… Leakage detection cable 2 ……………… Conductor electrode 3 ……………… Conductor 5 ……………… Core wire 6 …………… Leakage detection part 7 …………… Water-permeable insulation Tape 8 ……………… Return line part 9 ……………… Insulating tape 11 ………… Braid 12 ………… Detection line 7A ………… Hole
Claims (1)
一方の絶縁テープを透水性テープとし、これら絶縁テー
プ間に，導線を透水性の編組で被覆した２条のケーブル
を長手方向に並列に配した漏水検知ケーブルであって、
前記透水性の編組に導電イオンを含浸させたことを特徴
とする漏水検知ケーブル。1. At least one of the upper and lower insulating tapes is a water-permeable tape, and between these insulating tapes, two cables having conductors covered with a water-permeable braid are arranged in parallel in the longitudinal direction. It is a leak detection cable that I arranged,
A water leakage detection cable, wherein the water-permeable braid is impregnated with conductive ions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2888992U JPH0590339U (en) | 1992-04-30 | 1992-04-30 | Leak detection cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2888992U JPH0590339U (en) | 1992-04-30 | 1992-04-30 | Leak detection cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0590339U true JPH0590339U (en) | 1993-12-10 |
Family
ID=12260969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2888992U Pending JPH0590339U (en) | 1992-04-30 | 1992-04-30 | Leak detection cable |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0590339U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007007874A1 (en) * | 2005-07-14 | 2007-01-18 | Uni-Charm Corporation | Moisture sensor |
-
1992
- 1992-04-30 JP JP2888992U patent/JPH0590339U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007007874A1 (en) * | 2005-07-14 | 2007-01-18 | Uni-Charm Corporation | Moisture sensor |
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