JPS6316701B2 - - Google Patents
Info
- Publication number
- JPS6316701B2 JPS6316701B2 JP12650581A JP12650581A JPS6316701B2 JP S6316701 B2 JPS6316701 B2 JP S6316701B2 JP 12650581 A JP12650581 A JP 12650581A JP 12650581 A JP12650581 A JP 12650581A JP S6316701 B2 JPS6316701 B2 JP S6316701B2
- Authority
- JP
- Japan
- Prior art keywords
- conductor
- tube
- insulated
- short
- pipe
- 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
- 239000000463 material Substances 0.000 claims description 36
- 230000005684 electric field Effects 0.000 claims description 30
- 230000006698 induction Effects 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 20
- 239000004020 conductor Substances 0.000 claims description 18
- 230000000737 periodic effect Effects 0.000 claims description 6
- 239000011810 insulating material Substances 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 15
- 238000009413 insulation Methods 0.000 description 8
- 238000001514 detection method Methods 0.000 description 6
- 230000010355 oscillation Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12650581A JPS5827040A (ja) | 1981-08-11 | 1981-08-11 | 導電体被覆断熱管の短絡箇所探知方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12650581A JPS5827040A (ja) | 1981-08-11 | 1981-08-11 | 導電体被覆断熱管の短絡箇所探知方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5827040A JPS5827040A (ja) | 1983-02-17 |
| JPS6316701B2 true JPS6316701B2 (ref) | 1988-04-11 |
Family
ID=14936863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12650581A Granted JPS5827040A (ja) | 1981-08-11 | 1981-08-11 | 導電体被覆断熱管の短絡箇所探知方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5827040A (ref) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0879131B1 (en) | 1995-06-26 | 2001-03-14 | Nextrom Holding S.A. | An extrusion apparatus and method, a tubular product, and a pipe |
| DE69629491T2 (de) | 1995-12-12 | 2004-06-17 | Uponor Innovation Ab | Verfahren zum herstellen von homogenen materialien mit einem extruder, und extruder |
| WO2012149161A1 (en) * | 2011-04-29 | 2012-11-01 | Eaton Corporation | Degradation monitoring system for hose assembly |
| JP6492150B1 (ja) * | 2017-11-02 | 2019-03-27 | 株式会社川本製作所 | 増圧給水装置及び漏水検知器 |
-
1981
- 1981-08-11 JP JP12650581A patent/JPS5827040A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5827040A (ja) | 1983-02-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6531880B1 (en) | Non-invasive cable tester | |
| US20190368967A1 (en) | Pipe assembly | |
| CN108037181A (zh) | 一种高压电缆铅封涡流探伤装置及方法 | |
| US6867596B1 (en) | Fault detection system | |
| CN202583390U (zh) | 一种查找电缆或管道故障点的装置 | |
| WO1993023759A1 (fr) | Procede pour discriminer des objets de discrimination, detecteur prevu a cet effet et circuit d'entree dudit detecteur | |
| JPH01501419A (ja) | 電気を伝導する中空体の壁厚変化を検出する方法 | |
| JPS6316701B2 (ref) | ||
| US6650125B1 (en) | Leak and pipe detection method and system | |
| CA1305521C (en) | Underground cable testing method | |
| JPS5832176A (ja) | 導電体被覆断熱管の短絡箇所探知装置 | |
| WO1988001748A1 (en) | Method and device for determination of the condition of the insulation of an object made of an electrically conducting material, coated with an electrical insulation and positioned in an electrically conducting medium | |
| JPH06103291B2 (ja) | リモートフィールド渦流法による管体検査装置 | |
| US7808226B1 (en) | Line tracing method and apparatus utilizing non-linear junction detecting locator probe | |
| JP4004300B2 (ja) | 物体探査方法 | |
| CN203249986U (zh) | 一种高精度低噪音电线电缆断线定位仪 | |
| JPH03239971A (ja) | コロナ放電検出器 | |
| JPH09133504A (ja) | 配管の腐食検出方法 | |
| JP3169754B2 (ja) | 被覆鋼管の損傷度監視方法及びその装置 | |
| JP3097896B2 (ja) | 配線の電流ルート探索方法 | |
| JP2868786B2 (ja) | 屋内配線の事故点探査方法及び装置 | |
| RU2856836C1 (ru) | Теплоакустический кабелеискатель | |
| JP2905834B2 (ja) | 地中埋設管の損傷監視方法 | |
| KR200423722Y1 (ko) | 누전 탐지기 | |
| JPH1082865A (ja) | 地中埋設管の位置探査法 |