Study on regulatory position commercial grade item dedication for digital electrical appliances in nuclear power plant

As shrinking the overseas nuclear power plant construction market, the number of producers and suppliers has been increased abandoning nuclear quality assurance programs because of decreasing the demand for safety grade items. It is difficult to supply equipment for installation and replacement of safety class electrical equipment of Nuclear Power Plants (NPPs) in Korea. Commercial Grade Items (CGIs) are inevitable to use as a substitute for safety-related equipment parts through Commercial Grade Item Dedication (CGID). In this work, we have performed to analyze regulatory laws, regulation and technical standards for quality assurance of digital CGI, critical characteristics and acceptance methods are necessary to clarify for safety and regulatory quality.