The paper will describe the application of linear anodes to protect metallic buried piping in a congestedPetrochemical/In-Plant.A case study will be presented to demonstrate that the use of linear anode which does not automatically mean that protection will be achieved even on well coated close pipes.Protection data will be discussed along with the results of testing carried out to identify shorts to reinforcing and faults to isolating flanges caused during pressure testing.The paper will also cover overall factors that generally influence the design of Cathodic Protection System followed by conclusion and recommendation.Keywords: Linear Anodes Isolation Piping Cathodic Protection System