DE3002151C2 - - Google Patents

Info

Publication number
DE3002151C2
DE3002151C2 DE19803002151 DE3002151A DE3002151C2 DE 3002151 C2 DE3002151 C2 DE 3002151C2 DE 19803002151 DE19803002151 DE 19803002151 DE 3002151 A DE3002151 A DE 3002151A DE 3002151 C2 DE3002151 C2 DE 3002151C2
Authority
DE
Germany
Prior art keywords
copper
electrode
plastic housing
water
copper sulfate
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
Application number
DE19803002151
Other languages
German (de)
English (en)
Other versions
DE3002151A1 (de
Inventor
Johannes Ing.(Grad.) 430 Essen De Backes
Helmut Lange
Rudi 4300 Essen De Schulz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EOn Ruhrgas AG
Original Assignee
Ruhrgas AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ruhrgas AG filed Critical Ruhrgas AG
Priority to DE19803002151 priority Critical patent/DE3002151A1/de
Publication of DE3002151A1 publication Critical patent/DE3002151A1/de
Application granted granted Critical
Publication of DE3002151C2 publication Critical patent/DE3002151C2/de
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F13/00—Inhibiting corrosion of metals by anodic or cathodic protection
    • C23F13/02—Inhibiting corrosion of metals by anodic or cathodic protection cathodic; Selection of conditions, parameters or procedures for cathodic protection, e.g. of electrical conditions
    • C23F13/04—Controlling or regulating desired parameters
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/10—Measuring sum, difference or ratio
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
    • G01R27/16—Measuring impedance of element or network through which a current is passing from another source, e.g. cable, power line
    • G01R27/18—Measuring resistance to earth, i.e. line to ground

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
DE19803002151 1980-01-22 1980-01-22 Vorrichtung zur messung des schutzpotentials von unter wasser verlegten rohrleitungen Granted DE3002151A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19803002151 DE3002151A1 (de) 1980-01-22 1980-01-22 Vorrichtung zur messung des schutzpotentials von unter wasser verlegten rohrleitungen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19803002151 DE3002151A1 (de) 1980-01-22 1980-01-22 Vorrichtung zur messung des schutzpotentials von unter wasser verlegten rohrleitungen

Publications (2)

Publication Number Publication Date
DE3002151A1 DE3002151A1 (de) 1981-07-23
DE3002151C2 true DE3002151C2 (enrdf_load_stackoverflow) 1987-12-10

Family

ID=6092650

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19803002151 Granted DE3002151A1 (de) 1980-01-22 1980-01-22 Vorrichtung zur messung des schutzpotentials von unter wasser verlegten rohrleitungen

Country Status (1)

Country Link
DE (1) DE3002151A1 (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2149919C1 (ru) * 1997-04-03 2000-05-27 Общество с ограниченной ответственностью "Научно-исследовательский институт природных газов и газовых технологий - ВНИИГАЗ" Устройство для измерения поляризационного потенциала

Also Published As

Publication number Publication date
DE3002151A1 (de) 1981-07-23

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
D2 Grant after examination
8364 No opposition during term of opposition
8320 Willingness to grant licenses declared (paragraph 23)
8339 Ceased/non-payment of the annual fee