What is RCC-E?

ASME Boiler and Pressure Vessel Code, Section III, Division 1, Subsection NE, Class MC Components is a set of rules developed by the American Society of Mechanical Engineers (ASME) for the construction of nuclear power plant components. RCC-E, or "Regles de Conception et de Construction des Materiels Mecaniques des Ilots Nucleaires (Design and Construction Rules for Mechanical Components of PWR Nuclear Islands)" is a French standard, often used as a complement or alternative to ASME, especially in the context of French-designed or influenced nuclear power plants (PWRs). It provides detailed requirements for the design, fabrication, and examination of mechanical components like vessels, pumps, valves, and piping within the nuclear island. It is used to ensure safety and reliability of these components under the specific conditions of a nuclear power plant. It focuses on structural integrity and seismic design considerations.