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Abstract
This study is specifically concerned with the effect of corrosion on grounding grid and methods to protect the gird and surrounding metallic parts which subjected to current discharge. The thesis introduces two alternatives to protect the grounding grid from corrosion. The first alternative is achieved by compensation of the embedded conductors and the second is the cathodic protection system which uses additional current injection components. Also this thesis introduces technical and commercial evaluation between the two applied alternatives for avoiding corrosion