Regional Basic Professional Training Course in Korea

6. Safety Classification Of Structures, Systems and Components
(1) of the Regulations on Technical Standards for Nuclear Reactor Facilities, etc. is
hereby notified publicly as follows:
Article 1 (Purpose) The purpose of this notice is to prescribe the safety classification for
the structures, systems and components important to safety and the applicable codes and
standards in accordance with Article 12 (1) of the Regulations on Technical Standards for
Nuclear Reactor Facilities, etc.
Article 2 (Scope of Application) This notice shall be applied to the structures, systems
and components important to safety in the pressurized water reactor. Provided, that
CSA/CAN3‐N285.0 and CSA/CAN3‐N285.1 are applied to those in the pressurized
heavy water reactor.
Article 3 (Definitions) Definitions of the terms used in this notice shall be as follows:
1. The term "safety class" means classified safety of structures, systems, or
components of nuclear reactor facilities based on their nuclear safety function. It is
classified as Safety Class 1 (SC‐1), 2 (SC‐2) or 3 (SC‐3);
2. The term "non‐nuclear safety (NNS)" means classified safety of structures, systems,
or components of nuclear reactor facilities that are not in Safety Class 1, 2 or 3;
3. The term "facility" means structures, systems, or components which have one or
more functions;
4. The term "safety function" means any function that is necessary to ensure: (a) the
integrity of the reactor coolant pressure boundary, (b) the capability to shut down
the reactor and maintain it in a safe shutdown condition, or (c) the capability to
prevent or mitigate the consequences of plant conditions that could result in
potential off‐site exposures defined in the "Technical Standards for the Locations,
Structures and Installations of Nuclear Reactor Facilities";
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