DS/EN IEC 61226:2021 Nuclear power plants – Instrumentation, control and electrical power systems important to safety – Categorization of functions and classification of systems
2021DS/EN IEC 61226:2021 Nuclear power plants – Instrumentation, control and electrical power systems important to safety – Categorization of functions and classification of systems
2010DS/EN 61226:2010 Nuclear power plants - Instrumentation and control important to safety - Classification of instrumentation and control functions
DS/EN IEC 61226:2021 Nuclear power plants – Instrumentation, control and electrical power systems important to safety – Categorization of functions and classification of systems was changed to DS/EN 61226:2010 Nuclear power plants - Instrumentation and control important to safety - Classification of instrumentation and control functions.