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 (enExample) | 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 (enExample) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2225419A1 (en) | 1995-06-26 | 1997-01-16 | Conenor Oy | An extrusion apparatus and method, a tubular product, and a pipe |
| AU1068297A (en) | 1995-12-12 | 1997-07-03 | Conenor Oy | Method for producing homogeneous material with an extruder, an extruder, and a multilayer plastic pipe |
| JP6126585B2 (ja) * | 2011-04-29 | 2017-05-10 | イートン コーポレーションEaton Corporation | ホース組立体の劣化監視システム |
| 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 | |
| CA2987127C (en) | Pipe assembly | |
| US6867596B1 (en) | Fault detection system | |
| CN202583390U (zh) | 一种查找电缆或管道故障点的装置 | |
| JPH01501419A (ja) | 電気を伝導する中空体の壁厚変化を検出する方法 | |
| WO1993023759A1 (fr) | Procede pour discriminer des objets de discrimination, detecteur prevu a cet effet et circuit d'entree dudit detecteur | |
| JPS6316701B2 (enExample) | ||
| US3066256A (en) | Detector for flaws in buried pipe and the like | |
| US6650125B1 (en) | Leak and pipe detection method and system | |
| CA1305521C (en) | Underground cable testing method | |
| US4982163A (en) | Method and a device for the determination of the condition of the insulation of an object coated with an electric insulation | |
| JP2004198410A (ja) | 塗覆装管の欠陥検査方法及び腐食診断方法 | |
| JPS5832176A (ja) | 導電体被覆断熱管の短絡箇所探知装置 | |
| JP4004300B2 (ja) | 物体探査方法 | |
| JPH06103291B2 (ja) | リモートフィールド渦流法による管体検査装置 | |
| JP3169754B2 (ja) | 被覆鋼管の損傷度監視方法及びその装置 | |
| JPH03239971A (ja) | コロナ放電検出器 | |
| JP2868786B2 (ja) | 屋内配線の事故点探査方法及び装置 | |
| JP2905834B2 (ja) | 地中埋設管の損傷監視方法 | |
| KR200423722Y1 (ko) | 누전 탐지기 | |
| JPH0196583A (ja) | 土中に埋設された配管の位置を探査する方法 | |
| JPH1082865A (ja) | 地中埋設管の位置探査法 | |
| JP3363340B2 (ja) | ケーブル探知装置の静電結合式検出電極およびケーブル探知方法 | |
| JPS60195460A (ja) | 配管の絶縁状況判定装置 | |
| JPH08304321A (ja) | 地中埋設金属導管の塗覆装損傷検知方法 |