Publication of the two courses Lec. Dr. Qais Matti Elias and Assist. Lec. Walid Hameed Habib from the Department of Electrical Engineering at the University of Technology jointly discussed the design and evaluation of the performance of a cathodic protection system for the conveyor tube for cooling water of Al Quds Power Plant in Diyala Magazine. The results of the measurements after the actual implementation of the efficiency of the cathodic protection system to keep the pipe voltage negative within the standards of the global standard for metal Steel iron made of pipe.