This case study describes the design and commissioning of an impressed current cathodic protection
system for a 10 inch (254mm) diameter, 170 km long welded steel pipeline with a three-layer coating
system. This paper describes the adventures of cross-cultural technical communications, differences in
equipment specifications and understanding and conducting the survey in the lush green mountains of
Southern China in torrential rains and lighting storms.
Key words: Cathodic Protection, Three Layer Coating System, Potential Attenuation, Remote Ground
bed, GPS Synchronized Interruption, Shielding in Tunnels