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Publication details

Publication CODE Title
IEC 61226:2020 (2020-04) NUCLEAR POWER PLANTS - INSTRUMENTATION, CONTROL AND ELECTRICAL POWER SYSTEMS IMPORTANT TO SAFETY - CATEGORIZATION OF FUNCTIONS AND CLASSIFICATION OF SYSTEMS
 
Price Excl. VAT Total number of pages, tables and drawings
249.00 € 80.
Description
IEC 61226:2020 establishes, for nuclear power plants , a method of assignment of the functions specified for the plant into categories according to their importance to safety. Subsequent classification of the I&C and electrical power systems performing or supporting these functions, based on the assigned category, then determines relevant design criteria.
The design criteria, when applied, ensure the achievement of each function in accordance to its importance to safety. In this document, the criteria are those of functionality, reliability, performance, environmental qualification (e.g. seismic) and quality assurance (QA).
This edition includes the following significant technical changes with respect to the previous edition:
- to align on IAEA requirements, recommendations and terminology, particularly to take into account the replacement of NS-R-1 by SSR 2/1 and publication of SSG 30;
- to extend the scope to electrical power systems;
- to move the detailed requirements applying to functions and I&C systems to a normative annex, which will be removed after updating IEC 61513.
Class  C990  (IEC PUBLICATIONS IEC PUBLICATIONS)
Available files
EN/FR version

Status
Status IEC PUBLICATION
Situation Currently active
Replaces  IEC 61226:2009
Origin
Committee TC 45/SC 45A
REACTOR INSTRUMENTATION
Responsible Ir DELENS Marc
Approval
BEC Approval 2020-04-29
ICS-Code (International Standards Classification) 27.120.20
NBN Status New
IEC publication date 2020-04-29
IEC stability date 2021-12-31
IEC file modification date 2020-04-29
IEC last modification date 2020-04-29