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3. Design requirements
The design requirements aim to implement, during the construction of the plant, the defense-in-depth approach based on the three lines of defense: prevention, sectorization and control through countermeasures.
Our approach to fire safety is purely deterministic. It is based on the following two assumptions:
the fire can start anywhere – which implies a single outbreak of fire;
the fire may occur regardless of the plant's normal operating status (at power or shutdown), or in a post-accident situation.
The design process consists of two parts:
design requirements ;
the verification process.
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Design requirements
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