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  • BSI
    BS EN 61226:2010 Nuclear power plants. Instrumentation and control important to safety. Classification of instrumentation and control functions
    Edition: 2010
    $418.55
    / user per year

Description of BS EN 61226:2010 2010

This International Standard 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. The resulting classification then determines relevant design criteria.

The design criteria are the measures of quality by which the adequacy of each function in relation to its importance to plant safety is ensured. In this standard, the criteria are those of functionality, reliability, performance, environmental durability (including seismic) and quality assurance (QA).

This standard is applicable to all the information and command functions and the instrumentation and control (I&C) systems and equipment that provide those functions. The functions, systems and equipment under consideration provide automated protection, closed or open loop control and information to the operating staff. They keep the NPP conditions inside the safe operating envelope and provide automatic actions, or enable manual actions, that prevent or mitigate accidents, or that prevent or minimize radioactive releases to the site or wider environment. The I&C functions that fulfil these roles safeguard the health and safety of the NPP operators and the public.

This standard follows the general principles given in IAEA safety code NS-R-1 and safety guide NS-G-1.3, and it defines a structured method of applying the guidance contained in those codes and standards to the I&C systems that perform functions important to safety in a NPP. This standard should be read in association with the IAEA guides and IEC 61513 in implementing the requirements of IEC 61508 series.



Standard NumberBS EN 61226:2010
TitleNuclear power plants. Instrumentation and control important to safety. Classification of instrumentation and control functions
StatusWithdrawn
Publication Date2010-06-30
Withdrawn Date2021-07-29
ReplacesBS IEC 61226:2005, BS EN 61340-2-3:2000
Replaced ByBS EN IEC 61226:2021
Identical National Standard OfEN 61226:2010, EN 61340-2-3:2016, IEC 61340-2-3:2016
CorrectsBS IEC 61226:2009
DescriptorsNuclear technology, Nuclear reactors, Measuring instruments, Electric power stations, Nuclear-electric power stations, Instruments, Control systems, Nuclear power, Nuclear safety, Classification systems
ICS17.220.99 Other standards related to electricity and magnetism, 29.020 Electrical engineering in general, 27.120.20 Nuclear power plants. Safety
CommitteeNCE/8
ISBN978 0 580 70133 7
PublisherBSI
Pages38

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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