CA2058473A1 - Method and apparatus for checking the state of electrical insulation of an electrically conducting work - Google Patents
Method and apparatus for checking the state of electrical insulation of an electrically conducting workInfo
- Publication number
- CA2058473A1 CA2058473A1 CA002058473A CA2058473A CA2058473A1 CA 2058473 A1 CA2058473 A1 CA 2058473A1 CA 002058473 A CA002058473 A CA 002058473A CA 2058473 A CA2058473 A CA 2058473A CA 2058473 A1 CA2058473 A1 CA 2058473A1
- Authority
- CA
- Canada
- Prior art keywords
- current
- work
- intensity
- values
- recorded
- 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.)
- Abandoned
Links
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000010292 electrical insulation Methods 0.000 title claims abstract description 12
- 230000004087 circulation Effects 0.000 claims abstract description 19
- 238000005259 measurement Methods 0.000 claims abstract description 18
- 238000012545 processing Methods 0.000 claims abstract description 14
- 230000008859 change Effects 0.000 claims description 9
- 239000004020 conductor Substances 0.000 claims description 4
- 238000004364 calculation method Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 230000003334 potential effect Effects 0.000 abstract description 2
- 238000004210 cathodic protection Methods 0.000 abstract 1
- 239000002184 metal Substances 0.000 description 9
- 229910052751 metal Inorganic materials 0.000 description 9
- 239000003792 electrolyte Substances 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 230000015654 memory Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 241000252073 Anguilliformes Species 0.000 description 1
- 229910021607 Silver chloride Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 229940075397 calomel Drugs 0.000 description 1
- 238000010349 cathodic reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 1
- 229910000366 copper(II) sulfate Inorganic materials 0.000 description 1
- ZOMNIUBKTOKEHS-UHFFFAOYSA-L dimercury dichloride Chemical compound Cl[Hg][Hg]Cl ZOMNIUBKTOKEHS-UHFFFAOYSA-L 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- HKZLPVFGJNLROG-UHFFFAOYSA-M silver monochloride Chemical compound [Cl-].[Ag+] HKZLPVFGJNLROG-UHFFFAOYSA-M 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
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)
- Biodiversity & Conservation Biology (AREA)
- Ecology (AREA)
- Environmental & Geological Engineering (AREA)
- Environmental Sciences (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (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 (2)
| 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. |
| FR9016343 | 1990-12-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2058473A1 true CA2058473A1 (en) | 1992-06-28 |
Family
ID=9403725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002058473A Abandoned CA2058473A1 (en) | 1990-12-27 | 1991-12-27 | Method and apparatus for checking the state of electrical insulation of an electrically conducting work |
Country Status (7)
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 AT AT91403503T patent/ATE158412T1/de not_active IP Right Cessation
- 1991-12-20 ES ES91403503T patent/ES2106067T3/es not_active Expired - Lifetime
- 1991-12-20 DE DE69127685T patent/DE69127685T2/de not_active Expired - Fee Related
- 1991-12-20 DK DK91403503.5T patent/DK0494012T3/da active
- 1991-12-20 EP EP91403503A patent/EP0494012B1/fr not_active Expired - Lifetime
- 1991-12-27 CA CA002058473A patent/CA2058473A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| DE69127685T2 (de) | 1998-01-15 |
| ATE158412T1 (de) | 1997-10-15 |
| FR2671192B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1993-02-26 |
| DK0494012T3 (da) | 1997-10-13 |
| ES2106067T3 (es) | 1997-11-01 |
| DE69127685D1 (de) | 1997-10-23 |
| EP0494012A1 (fr) | 1992-07-08 |
| EP0494012B1 (fr) | 1997-09-17 |
| FR2671192A1 (fr) | 1992-07-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |