SEVERE ACCIDENT STRATEGIES, REVIEW AND VALIDATION OF GUIDELINES AT CANADIAN NPPS


11th International Conference on CANDU® Maintenance and Nuclear Components - 2017 Oct. 01-04

Presented at:
11th International Conference on CANDU® Maintenance and Nuclear Components
2017 Oct. 01-04
Location:
Toronto, ON Canada
Session Title:
Post-Fukushima Strategies 1

Authors:
N. Mesmous (CNSC)
  

Abstract

Further enhancements to the existing severe accident management (SAM) program in CANDU nuclear power plants (NPP) is an important activity in response to lessons learned from the Fukushima Daiichi nuclear event. In addition, verification and validation of the severe accident management guidance (SAMG) is crucial to assess its successful implementation and effectiveness in SAM.
In this view, Canadian Nuclear Safety Commission (CNSC) approach to assure SAM effectiveness includes: • Implementation of REGDOC-2.3.2 “Accidents Management” requirements for SAM, • compliance verification of actions related to SAM, • evaluation of site-specific SAMG implementation and • verification that lessons learned are incorporated into the programs.
In this presentation, CNSC regulatory oversight related to SAMG verification and validation will be discussed. This approach is seen as providing valuable evaluation and feedback to operating CANDU NPP utilities to improve and support decision making for increasing confidence in SAM effectiveness.
Keywords: Accident Management, SAM Evaluation, SAMG, SAMG Verification and Validation


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