Underground pipes’ and pipelines’ material structure,and their load characteristics
are influenced by chemical, electrochemical and electrical effects or any
accumulation of these. These effetcs are generated by the pipes’ construction
material damaged during the deliver and external environmental elements
interaction. The external environmental elements are bound to the ground’s three
phases, solid soil particles, water found in the ground, air int he gaps between the
soil particles. These are the important factors, that we must kept in mind, when we
want to prevent these pipelines from damaging.
My thesis focuses on underground metal pipes behavior,in case of different
electrical impulses. I present the eletrochemical and electrical effects ,including
various stray currents’ destructive skills. The cathodic protecton’s usage and
utility is also shown.
The purpose of this thesis, is to present the stray currents corrosive effect related
to each other. For this purpose we made two measurment layouts during the
semester. The task was to prepare,present and evaluate the results. These
measurment layouts based on practical cases.