IEC 61226 Ed. 2.0 b:2005, Nuclear power plants - Instrumentation and control systems important to safety - Classification of instrumentation and control functions

Establishes a method of classification of the information and command functions for nuclear power plants, and the I&C systems and equipment that provide those functions, into categories that designate the importance to safety of the function. Follows the general principles given in IAEA in safety codes and safety guides.