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lessons learned from 1999 blayais flood : overview of edf ... - NRC

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Protection <strong>of</strong> French NPPs against external <strong>flood</strong>ing<br />

before Blayais y <strong>flood</strong><br />

(Safety Rule RFS I.2.e – Issued 1984)<br />

Maximum design <strong>flood</strong> level to be assessed considering :<br />

River <strong>flood</strong><br />

Dam rupture<br />

Littoral <strong>flood</strong> (tide + storm surge)<br />

Estuary sites<br />

Protection is ensured by :<br />

Nuclear Island Platform level ≥ maximum design <strong>flood</strong> level<br />

Below the platform: closure <strong>of</strong> all possible pathways to the<br />

rooms containing equipment required for safe shutdown .<br />

<strong>NRC</strong> – Regulatory Information Conference – 11 March 2010 - Page 5

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