The City Public Service Board of San Antonio, Texas (CPS Energy) is the largest municipally owned gas and electric utility company in the nation. CPS Energy owns a fleet of power generation plants with a combined output of over 4,500 MW. In 2011, CPS initiated an Asset Corrosion-Protection Program for its power generating facilities to proactively protect its assets from coating degradation and premature corrosion.
On July 28, 1986 a tornado struck an area outside of Sioux City, IA, destroying one of the four power generation plants at Port Neal. The tornado registered an F4 on the Fujita scale, indicating that “devastating damage” had taken place on the ground. Although there were no major injuries to the employees at the plant, severe damage took place on the equipment.
Since the inception of the US commercial nuclear power program in the 1950’s, criteria have existed for ensuring the satisfactory performance of reactor containment protective coatings over the life of the plant. These criteria have been modified and updated periodically to reflect improvement of the industry and regulatory experience and knowledge bases. This presentation reviews the development of the current qualification requirements for US commercial nuclear power plant reactor containment coatings.