Abstract
Abstract Pipe type high voltage transmission lines used in the Chicago area were protected with either an asphalt mastic coating or a reinforced coal tar enamel coating. Both are factory applied. Cathodic protection was then applied to these lines to police the pin holes in the coating. Before cathodic protection could be economically applied, it was necessary to insulate the pipes from the station ground busses. It was also necessary to maintain a low resistance path between the pipes and the ground busses for fault current in the event of a service failure. This was accomplished by using oxide film cutout disc in the ground connections. Both magnesium anodes and a rectifier were used to provide cathodic protection. 7.2
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
