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CRITICAL OCCURRENCE [1 record]

Record 1 - external organization data 1994-12-12

English

Subject field(s)
  • Nuclear Fission Reactors
  • Compartment - Canadian Nuclear Safety Commission
CONT

Massive failure of all pressure vessels shall be analyzed unless it can be demonstrated that such a failure is of an acceptably low expected frequency of occurrence. If this is to be achieved, the following shall be taken as minimum requirements :... a critical crack length such that a detectable leak will occur at normal operating pressure well in advance of the critical crack length being reached.

French

Domaine(s)
  • Réacteurs nucléaires de fission
  • Tiroir - Commission canadienne de sûreté nucléaire
CONT

Il faut faire une analyse d'une défaillance majeure de tous les appareils sous pression à moins qu'on puisse démontrer que la fréquence prévue d'une telle défaillance soit assez faible pour être acceptable. Pour qu'une telle démonstration soit valable, les exigences minimales suivantes doivent être satisfaites : [...] il est défini une longueur de fissure critique telle que sous la pression normale d'exploitation la fuite soit détectable bien avant que la fissure atteigne une telle longueur.

Spanish

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