Design requirements
Fire protection for PWR nuclear power plants

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Design requirements


Fire protection for PWR nuclear power plants

Author : Maurice KAERCHER

Publication date: July 10, 2004 | Lire en français

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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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