If pipelines are running parallel with cables this porblem couldhappen and the following checking shall be done before starting installation works:
•Calculation of the induced voltage on the pipeline for the normal working conditions and earth fault condition.
•Influence due to galvanic coupling between the installations.
•Checking of influence on the pipeline cathodic protection system.,Cathodic protection usually used to reduce the electrolytic actions which may affect the pipeline ,
•Possibility of the accelerated corrosion of the metallic structures of the pipeline .
m.fadel
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