Case study for anode grid systems. used for Cathodic Protection of above ground storage tank bottom plates. Technical solutions for arranging the anode grid on large (90 m diameter) tanks are studied and compared in respect to the CP major objective.
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This paper presents examples of anode array arrangements and corresponding attenuation characteristic calculations to enable optimization of current distribution. It also presents examples of return current imbalances and how they may be corrected.
A 3D computer model estimates CP current distribution in congested areas with coated and uncoated buried pipelines, screwpiles, groundwires and copper groundrods. The model enables design and installation of optimal CP systems for the below grade pipelines.
Laboratory and field experiment results show that the soil resistivity is the main influencing factor of the cathodic protection current distribution of horizontal directional drilling. This article also gives a test method for effectiveness of cathodic protection of HDD.
Information and test methods available to evaluate the effectiveness of cathodic protection (CP) systems used to protect the steel reinforcement of conventionally reinforced atmospherically exposed concrete structures.