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Method for monitoring efficacy of cathodic corrosion protection of system i.e. pipeline made from steel, involves determining changes of protection current directly or indirectly by measuring changes of pH-values of soil enclosing probe
Method for monitoring efficacy of cathodic corrosion protection of system i.e. pipeline made from steel, involves determining changes of protection current directly or indirectly by measuring changes of pH-values of soil enclosing probe
The method involves using changes of corrosion protection current for judging of sufficient efficacy of cathodic corrosion protection of a pipeline (1) made from metal and laid in soil. The changes of the corrosion protection current are determined directly or indirectly by measuring changes of pH-values of soil enclosing a separate measuring probe i.e. steel probe, where the probe is manufactured from steel and electrically connected with the pipeline. The changes of the pH-values are determined by a pH-value measuring electrode placed in an area of the probe. An independent claim is also included for a device for executing a method for monitoring efficacy of cathodic corrosion protection of a system.
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