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Requirements for monitoring and display of nuclear power plant safety functions in the event of an accident
This is the fourth edition of CSA N290.6, Requirements for monitoring and display of nuclear power plant safety functions in the event of an accident . It supersedes the previous editions, published in 2016, 2009, and 1982. Major changes to this edition include
The CSA N-Series Standards provide an interlinked set of requirements for the management of nuclear facilities and activities. CSA N286 provides overall direction to management to develop and implement sound management practices and controls, while the other CSA Group nuclear Standards provide technical requirements and guidance that support the management system. This Standard works in harmony with CSA N286 and does not duplicate the requirements of CSA N286; however, it might provide more specific direction for those requirements. This Standard provides requirements and recommendations for the design and qualification of those components specifically involved in the monitoring and display of safety functions for nuclear power plants (NPP) and NPP facility irradiated fuel storage. The monitoring and display of nuclear power plant variables following an accident are important safety functions; appropriate operator actions following such an event rely on the availability of essential information. Users of this Standard are reminded that additional and site-specific requirements might be specified by federal, provincial, or municipal authorities. This Standard should not be considered as a replacement for the requirements contained in the Nuclear Safety and Control Act and its Regulations or in other legislation, standards, or guides. This Standard was prepared by the Subcommittee on Requirements for Monitoring and Display of Nuclear Power Plant Safety Functions in the Event of an Accident, under the jurisdiction of the Technical Committee on Reactor Control Systems, Safety Systems, and Instrumentation for Nuclear Power Plants and the Strategic Steering Committee on Nuclear Standards, and has been formally approved by the Technical Committee
This Standard provides requirements for the design and qualification of components for the monitoring and display of NPPs and NPP facility irradiated fuel storage safety functions in the event of a design basis accident (DBA) or a design extension condition (DEC) during the operational phase of the facility lifecycle.
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This Standard applies to existing NPPs and new NPPs.
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This Standard applies to components and systems that enable NPP staff, in the event of an accident, to
Notes: 1) Emergency management in this context refers to the overall coordinated response to, mitigation of, and recovery from a nuclear emergency. Emergency management is not concerned with the specific actions taken within the NPP to manage the accident (i.e., accident management as described above). Emergency management actions can be the responsibility of the operating organization or other jurisdictions (e.g., operator emergency response organizations, government bodies, emergency workers) Refer to CSA N1600 for guidance on nuclear emergency categorization and notification. 2) If the emergency planning basis, as defined in CSA N1600, does not require off-site emergency management actions, any functions associated with monitoring off-site parameters may be excluded where justified
In this Standard, "shall" is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the Standard; "should" is used to express a recommendation or that which is advised but not required; and "may" is used to express an option or that which is permissible within the limits of the Standard. Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material. Notes to tables and figures are considered part of the table or figure and may be written as requirements. Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.
| SDO | CSA: Canadian Standards Association |
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| Publication Date | Jan. 1, 2025 |
| Language | en - English |
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