Interference Current Mapping (SCM)

Interference Current Mapping (SCM)
Explanation

Interference Current Mapping

SCM 

Through this equipment, it is possible to map the magnitude and direction of the currents that are roaming on the pipelines. With this work, it is ensured that we control induction on such critical points like railway crossings, tramway crossings, foreign pipe intersections etc. 

STATIC INTERFERENCE CURRENT 

Static interfering currents are caused by foreign structures surrounding pipelines exposed to interference. Foreign pipe passages, anode deposits or different foreign structures cause this. Corrosion occurs at the place where the current flows into the soil through the pipe and in cases where this is not found and the solution is not applied, it can be observed that the cathodic protection system works badly as well as the cost loss.

The priorities to be examined against corrosion in such areas are where does the current flow from, where is it moving, and what is the current density?

In a pipeline where pipe-soil voltage measurements are routinely made, operators sometimes detect interference long before their outflow. A pipeline, without an additional source of current, has a high voltage value indicates to the maximum point of stray current. A low voltage is an indication of the stray current discharge point. However, voltage measurement typically benefits only if the pipeline is regularly checked and a chart for comparison is generated. The pipe-soil evaluations can be completed with current measurement that can be done within the SCM.

DYNAMIC ENTERFERENCE CURRENT

Dynamic interference current is created by electric transport systems (such as railways, trams and mines) and can travel for kilometers on well-insulated, interconnected pipelines. If it is not eliminated, stray interfering currents cause serious damage to metallic structures and pipelines.

Corrosion occurs at the place where the current flows into the soil through the pipe. In cases where this is not found and the solution is not applied, it can be observed that the cathodic protection system works badly as well as the cost loss.

The priorities to be examined against corrosion in such areas are where does the current flow from, where is it moving, and what is the current density?

In a pipeline where pipe-soil voltage measurements are routinely made, operators sometimes detect interference long before their outflow. A pipeline, without an additional source of current, has a high voltage value indicates to the maximum point of stray current. A low voltage is an indication of the stray current discharge point. However, voltage measurement typically benefits only if the pipeline is regularly checked and a chart for comparison is generated. The pipe-soil evaluations can be completed with current measurement that can be done within the SCM.

Preliminary Discovery Form
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Catalog
Enterferans Akım Haritacısı (SCM).pdf
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