Out an Intensive Measurement

The pipe/soil potential is conventionally measured at a test point with a reference electrode Bn. 

The reference electrode Bj is set up at a distance, a, over the pipeline. The voltage between the two reference electrodes 

The determination of C, only requires the measured value Cg and no cable connection to the pipeline. This technique can be repeated at equal intervals Aa =  

A further possibility of error is the addition of electrode errors. For this reason examination of the value according to Eq. (3-62) at the next measuring point is necessary. 

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