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CSA - N290.4-11

Requirements for reactor control systems of nuclear power plants

inactive
Organization: CSA
Publication Date: 1 January 2011
Status: inactive
Page Count: 26
scope:

This Standard specifies provisions for safe and effective control of reactor power. 

This Standard pertains to all components of the system, including mechanical, process, software, electrical, and instrumentation and control design used for the control of the neutron flux and the thermal output of the reactor. 

In this Standard, "control" refers to both manual and automatic action.

In this Standard, "control" refers to reactor power control, not overall unit control. 

This Standard provides provisions for a design that facilitates reactivity management. Note: For the purposes of this Standard, "reactivity management" refers to

(a) the safe, controlled, and conservative performance of plant operation and maintenance activities that affect reactivity;

(b) the active and vigilant monitoring of reactivity changes;

(c) the quick and reliable detection of deviations from expected results; and

(d) limiting rate changes and maximum power changes in response to failures. 

In CSA standards, "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 (nonmandatory) to define their application.

Document History

January 1, 2019
Requirements for reactor control systems of nuclear power plants
This Standard specifies requirements for the reactor control system (RCS) of water-cooled nuclear power plants (NPPs). This Standard pertains to all components of the RCS, including mechanical,...
October 1, 2011
Requirements for reactor control systems of nuclear power plants
This Standard specifies provisions for safe and effective control of reactor power. This Standard pertains to all components of the system, including mechanical, process, software, electrical, and...
N290.4-11
January 1, 2011
Requirements for reactor control systems of nuclear power plants
This Standard specifies provisions for safe and effective control of reactor power.  This Standard pertains to all components of the system, including mechanical, process, software, electrical, and...
January 1, 1982
Requirements for the Reactor Regulating Systems of CANDU Nuclear Power Plants
The Standard is concerned with two aspects of the reactor regulating system. The first relates to reactor safety; the second is concerned with effective control of the reactor. These two aspects are...

References

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