DE69127685D1 - Verfahren und Vorrichtung für die Überprüfung des elektrischen Isolierungszustands einer elektrisch leitenden Konstruktion - Google Patents
Verfahren und Vorrichtung für die Überprüfung des elektrischen Isolierungszustands einer elektrisch leitenden KonstruktionInfo
- Publication number
- DE69127685D1 DE69127685D1 DE69127685T DE69127685T DE69127685D1 DE 69127685 D1 DE69127685 D1 DE 69127685D1 DE 69127685 T DE69127685 T DE 69127685T DE 69127685 T DE69127685 T DE 69127685T DE 69127685 D1 DE69127685 D1 DE 69127685D1
- Authority
- DE
- Germany
- Prior art keywords
- current
- checking
- construction
- electrically conductive
- electrical insulation
- 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 - Fee Related
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
- G01N17/02—Electrochemical measuring systems for weathering, corrosion or corrosion-protection measurement
Landscapes
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Ecology (AREA)
- Biochemistry (AREA)
- Environmental Sciences (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Biodiversity & Conservation Biology (AREA)
- Immunology (AREA)
- General Physics & Mathematics (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Measurement Of Resistance Or Impedance (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
- Gas-Insulated Switchgears (AREA)
- Prevention Of Electric Corrosion (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9016343A FR2671192A1 (fr) | 1990-12-27 | 1990-12-27 | Procede et appareil pour la verification de l'etat d'isolement electrique d'un ouvrage electriquement conducteur. |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69127685D1 true DE69127685D1 (de) | 1997-10-23 |
DE69127685T2 DE69127685T2 (de) | 1998-01-15 |
Family
ID=9403725
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69127685T Expired - Fee Related DE69127685T2 (de) | 1990-12-27 | 1991-12-20 | Verfahren und Vorrichtung für die Überprüfung des elektrischen Isolierungszustands einer elektrisch leitenden Konstruktion |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0494012B1 (de) |
AT (1) | ATE158412T1 (de) |
CA (1) | CA2058473A1 (de) |
DE (1) | DE69127685T2 (de) |
DK (1) | DK0494012T3 (de) |
ES (1) | ES2106067T3 (de) |
FR (1) | FR2671192A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2703458B1 (fr) * | 1993-03-31 | 1995-05-24 | Gaz De France | Procédé et dispositif de mesure du potentiel électrochimique réel d'un élément de construction dans un électrolyte tel une conduite enfouie dans le sol, protégée cathodiquement contre la corrosion. |
JP3058844B2 (ja) * | 1997-06-03 | 2000-07-04 | 東京瓦斯株式会社 | 鋼製プローブを用いたカソード防食状況の判定方法及びその装置 |
DE19755417C2 (de) * | 1997-12-12 | 1999-11-04 | Fraunhofer Ges Forschung | Auswerteschaltung zur Ermittlung komplexer Impedanzen, Vorrichtung zur Messung komplexer Impedanzen und Verwendung der Vorrichtung |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4099117A (en) * | 1976-04-26 | 1978-07-04 | Dick Gaut | Method and apparatus for measuring the quality of insulation on a buried pipeline and the quantity of metal oxide present at breaks in the insulation |
US4511844A (en) * | 1982-12-10 | 1985-04-16 | Panhandle Eastern Pipe Line Company | E-Log I field computer |
US4721957A (en) * | 1984-06-06 | 1988-01-26 | Trw Inc. | Ground shift compensated parameter measurement system |
US4755267A (en) * | 1986-06-03 | 1988-07-05 | Pennwalt Corporation | Methods and apparatus for protecting metal structures |
US4823072A (en) * | 1986-09-04 | 1989-04-18 | Walcott Kenneth J | Measurement of the polarized potential of buried pipeline having impressed current cathodic protection |
IT215064Z2 (it) * | 1988-10-14 | 1990-07-30 | Il Gas S P A Soc It | Apparecchiatura per il controllo dell isolamento e o la protezione catodica di tubazioni metalliche interrate |
IT1230366B (it) * | 1989-08-01 | 1991-10-18 | Eniricerche Spa | Procedimento per il controllo in continuo dell'integrita' del rivestimento protettivo di strutture metalliche interrate e dispositivi per la sua realizzazione. |
-
1990
- 1990-12-27 FR FR9016343A patent/FR2671192A1/fr active Granted
-
1991
- 1991-12-20 DE DE69127685T patent/DE69127685T2/de not_active Expired - Fee Related
- 1991-12-20 ES ES91403503T patent/ES2106067T3/es not_active Expired - Lifetime
- 1991-12-20 EP EP91403503A patent/EP0494012B1/de not_active Expired - Lifetime
- 1991-12-20 DK DK91403503.5T patent/DK0494012T3/da active
- 1991-12-20 AT AT91403503T patent/ATE158412T1/de not_active IP Right Cessation
- 1991-12-27 CA CA002058473A patent/CA2058473A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
FR2671192A1 (fr) | 1992-07-03 |
EP0494012A1 (de) | 1992-07-08 |
ATE158412T1 (de) | 1997-10-15 |
DK0494012T3 (da) | 1997-10-13 |
EP0494012B1 (de) | 1997-09-17 |
ES2106067T3 (es) | 1997-11-01 |
FR2671192B1 (de) | 1993-02-26 |
DE69127685T2 (de) | 1998-01-15 |
CA2058473A1 (en) | 1992-06-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |