JPS6219003B2 - - Google Patents
Info
- Publication number
- JPS6219003B2 JPS6219003B2 JP53022701A JP2270178A JPS6219003B2 JP S6219003 B2 JPS6219003 B2 JP S6219003B2 JP 53022701 A JP53022701 A JP 53022701A JP 2270178 A JP2270178 A JP 2270178A JP S6219003 B2 JPS6219003 B2 JP S6219003B2
- Authority
- JP
- Japan
- Prior art keywords
- protective layer
- cable
- layer
- corrosion
- grounded
- 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
- 239000010410 layer Substances 0.000 claims description 10
- 239000011241 protective layer Substances 0.000 claims description 9
- 230000007797 corrosion Effects 0.000 claims description 5
- 238000005260 corrosion Methods 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims 1
- 230000006378 damage Effects 0.000 description 8
- 208000014674 injury Diseases 0.000 description 7
- 208000027418 Wounds and injury Diseases 0.000 description 4
- 239000004020 conductor Substances 0.000 description 3
- 239000012212 insulator Substances 0.000 description 3
- 230000008733 trauma Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Locating Faults (AREA)
- Insulated Conductors (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Description
【発明の詳細な説明】
本発明はプラスチツク高圧ケーブル線路に係
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to plastic high voltage cable lines.
プラスチツクケーブルの弱点は機械的に弱いこ
とであり、外傷を生じ易い。外傷が生じるとケー
ブル内に水が侵入し、種々の不都合が生じ甚だし
い場合にはケーブルの破損を惹起する。 The weakness of plastic cables is that they are mechanically weak and susceptible to trauma. When trauma occurs, water enters the cable, causing various inconveniences and, in severe cases, causing damage to the cable.
ケーブルが外傷を受け僅かでも水が侵入したな
らば、その時点で外傷の生じたことおよびその位
置を検出し、対策を施すようにすればケーブルの
破損を防止することができ、ケーブルの寿命を延
長することができる。 If a cable is damaged and even a small amount of water enters, by detecting the damage and its location at that point and taking countermeasures, it is possible to prevent damage to the cable and extend the life of the cable. Can be extended.
本発明は上記の事情に基きなされたもので、外
傷の発生およびその位置を外傷発生と同時に知る
ことができるプラスチツク高圧ケーブル線路を提
供する。 The present invention has been made based on the above-mentioned circumstances, and provides a plastic high-voltage cable line that allows the occurrence and location of an injury to be known at the same time as the injury occurs.
以下図面につき本発明の詳細を説明する。本発
明においては、第１図に示すケーブルを使用す
る。すなわち、導体１を包囲してプラスチツク絶
縁体２を設け、絶縁体２外周には図示省略の半導
層が被着され、その外周には銅テープ等を巻回し
て遮蔽層３が設けられている。 The invention will be explained in detail below with reference to the drawings. In the present invention, the cable shown in FIG. 1 is used. That is, a plastic insulator 2 is provided surrounding the conductor 1, a semiconductor layer (not shown) is adhered to the outer periphery of the insulator 2, and a shielding layer 3 is provided around the outer periphery by wrapping a copper tape or the like. There is.
遮蔽層３上には、綿または不織布等から成る絶
縁性でかつ吸湿性のテープを巻回して内部シース
４を施し、この上に例えばステンレステープの如
き耐蝕性金属材料から成るテープを巻回して保護
層５を形成する。 An inner sheath 4 is provided on the shielding layer 3 by winding an insulating and hygroscopic tape made of cotton or non-woven fabric, etc., and a tape made of a corrosion-resistant metal material such as stainless steel tape is wound on top of this. A protective layer 5 is formed.
保護層５上には一般のケーブルにおけると同様
の防蝕シース６を施す。 On the protective layer 5, a corrosion-resistant sheath 6 similar to that in ordinary cables is applied.
第２図は本発明のケーブル線路を示している。
ケーブル７の導体１は終端処理８を施されてお
り、遮蔽層３は両終端において接地されている。 FIG. 2 shows a cable line according to the invention.
The conductor 1 of the cable 7 is subjected to termination treatment 8, and the shielding layer 3 is grounded at both ends.
保護層５には一方の終端において、負極を接地
した直流電源Ｅの正極が接続され、正極と前記一
方の終端との間にはインダクタンス、キヤパシタ
ンスの並列共振回路９が介挿され、並列共振回路
９と直流電源Ｅとの間には電流計１０が設けられ
ている。 One end of the protective layer 5 is connected to the positive electrode of a DC power supply E whose negative electrode is grounded, and a parallel resonant circuit 9 of inductance and capacitance is inserted between the positive electrode and the one end to form a parallel resonant circuit. An ammeter 10 is provided between the DC power supply E and the DC power supply E.
また、並列共振回路と前記終端との間はコンデ
ンサおよびバリスタの並列回路１１によつて接地
されている。 Moreover, the connection between the parallel resonant circuit and the terminal is grounded by a parallel circuit 11 of a capacitor and a varistor.
上記構成の本発明線路においては、ケーブルに
外傷を生じ内部シース４内に水分が侵入すれば、
直流電源Ｅの正極、保護層５、水分、遮蔽層３、
大地の回路を電流が流れる。すなわち、電流計１
０の指示により外傷の発生を知ることができる。
なお、電流計を接点付のものとするか、電流計を
警報接点、すなわち上記の内部シース４にリーク
電流が流れたときにこのリーク電流で作動する警
報発生手段と置換して外傷発生時に警報を発生さ
せるようにもなし得る。 In the line of the present invention having the above structure, if the cable is damaged and moisture enters the inner sheath 4,
Positive electrode of DC power supply E, protective layer 5, moisture, shielding layer 3,
Current flows through the earth circuit. That is, ammeter 1
The occurrence of trauma can be known by the instruction 0.
In addition, the ammeter may be equipped with a contact, or the ammeter may be replaced with an alarm contact, that is, an alarm generating means that is activated by leakage current when it flows through the internal sheath 4, to generate an alarm in the event of an injury. It can also be done to generate
なお、上記実施例において、周知のブリツジ法
を適用すれば、外傷発生位置の標定を行うことが
できる。 In addition, in the above-mentioned embodiment, if the well-known bridge method is applied, it is possible to locate the location where the injury occurs.
また、本発明は上記実施例のみに限定されな
い。例えば、電流の測定を大地と保護層との間で
も行うようにすれば、外傷が防蝕シースのみであ
るか、内部シースにおよんでいるかの判定も可能
である。 Furthermore, the present invention is not limited to the above embodiments. For example, by measuring the current between the ground and the protective layer, it is possible to determine whether the damage is only to the corrosion-resistant sheath or to the internal sheath.
第１図は本発明に使用するケーブルの一例の断
面図、第２図は本発明の一実施例の回路図であ
る。
１……導体、２……絶縁体、３……遮蔽層、４
……内部シース、５……保護層、６……防蝕シー
ス、７……ケーブル、Ｅ……直流電源、Ｇ……大
地。
FIG. 1 is a sectional view of an example of a cable used in the present invention, and FIG. 2 is a circuit diagram of an embodiment of the present invention. 1... Conductor, 2... Insulator, 3... Shielding layer, 4
...Inner sheath, 5...Protective layer, 6...Corrosion-proof sheath, 7...Cable, E...DC power supply, G...Ground.
Claims (1)
巻回層から成る内部シースおよび耐蝕性金属テー
プの巻回層から成る保護層を順次設け保護層外周
に防蝕シースを設けた高圧プラスチツクケーブル
を前記遮蔽層が接地される如くして布設し、前記
保護層に負極を接地した直流電源の正極を、電流
計もしくは前記内部シースを流れる電流で作動す
る警報発生手段を介して接続したことを特徴とす
るプラスチツク高圧ケーブル線路。1. A high-voltage plastic cable with an inner sheath consisting of a wound layer of insulating and hygroscopic tape and a protective layer consisting of a wound layer of corrosion-resistant metal tape are sequentially provided around the outer periphery of the shielding layer, and a corrosion-resistant sheath is provided around the outer periphery of the protective layer. The shielding layer is laid so as to be grounded, and the positive electrode of a DC power source whose negative electrode is grounded is connected to the protective layer via an ammeter or an alarm generating means activated by the current flowing through the inner sheath. plastic high-voltage cable track.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2270178A JPS54114781A (en) | 1978-02-27 | 1978-02-27 | Plastic highhtension cable line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2270178A JPS54114781A (en) | 1978-02-27 | 1978-02-27 | Plastic highhtension cable line |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS54114781A JPS54114781A (en) | 1979-09-07 |
| JPS6219003B2 true JPS6219003B2 (en) | 1987-04-25 |
Family
ID=12090161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2270178A Granted JPS54114781A (en) | 1978-02-27 | 1978-02-27 | Plastic highhtension cable line |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54114781A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0519198U (en) * | 1991-08-23 | 1993-03-09 | 新神戸電機株式会社 | Case frame |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58218709A (en) * | 1982-06-11 | 1983-12-20 | 株式会社フジクラ | Sheath damage detecting power cable |
| JPS60262070A (en) * | 1984-06-11 | 1985-12-25 | Furukawa Electric Co Ltd:The | Monitoring of metal shielding layer for power cable |
| JP5271553B2 (en) * | 2008-01-29 | 2013-08-21 | 矢崎エナジーシステム株式会社 | Inundation detection structure |
-
1978
- 1978-02-27 JP JP2270178A patent/JPS54114781A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0519198U (en) * | 1991-08-23 | 1993-03-09 | 新神戸電機株式会社 | Case frame |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS54114781A (en) | 1979-09-07 |
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