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CRITICAL CRACK LENGTH [3 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 - external organization data 2007-11-08

English

Subject field(s)
  • Pumps
  • Nuclear Power Stations
  • Compartment - Canadian Nuclear Safety Commission
CONT

To avoid a power pulse, mitigating action should be taken before the leak rate exceeds the capacity of the make-up pumps and voiding starts; this is long before a crack has grown to a critical crack length.

French

Domaine(s)
  • Pompes
  • Centrales nucléaires
  • Tiroir - Commission canadienne de sûreté nucléaire
CONT

Afin d'éviter les pointes de puissance, des mesures d'atténuation devraient être prises avant que le taux de fuite ne dépasse la capacité des pompes d'appoint et que le vidage ne débute; cette situation se produit bien avant que la fissure ait atteint une longueur critique.

Spanish

Save record 1

Record 2 - 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

Save record 2

Record 3 1980-09-01

English

Subject field(s)
  • Long-Distance Pipelines
OBS

Critical through-wall crack size may be defined as the maximum axial length of a sharp crack that the pipe can tolerate at the operating pressure without a propagating fracture starting.

French

Domaine(s)
  • Canalisations à grande distance

Spanish

Save record 3

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