Din avgränsning ger 740 träffar.
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2008:50 Study on Developments in Accident Investigation Methods: A Survey of the “State-of-the-Art”
The objective of this project was to survey the main accident investigation methods that have been developed since the early or mid-1990s. The motivation was the increasing frequency of accidents that defy explanations in simple terms, for instance cause-effect chains or “human error”. Whereas the complexity of socio-technical systems is steadily growing across all industrial domains,...
Innehållstyp: Publikationer -
2009:13 2008 års bedömning av strålsäkerheten vid de svenska kärnkraftsanläggningarna
Strålsäkerhetsmyndigheten har genom tillsyn säkerställt ett brett underlag för denna samlade strålsäkerhetsvärderingen. Den samlade bedömningen är att strålsäkerhetsläget, dvs. kärnsäkerheten, det fysiska skyddet inkl. kärnämneskontroll och strålskyddet, vid de svenska kärnkraftverken upprätthålls...
Innehållstyp: Publikationer -
2009:07 Dependency Analysis Guidance Nordic/German Working Group on Common Cause Failure analysis
Phase 2...
Innehållstyp: Publikationer -
2009:05 Survey on requirements for independent reviews and inspections of electrical and I&C equipment
This survey is a first step to support the work to develop the Swedish regulations in the area of independent review and inspection in the process supporting implementation of electrical equipment in nuclear power plants. The report consists of a summary of different regulations in the area and also an analysis of the differences between the electrical and mechanical field especially in the...
Innehållstyp: Publikationer -
2008:29e Safety and Radiation Protection at Swedish Nuclear Power Plants 2007
The safety level of the plants is maintained at an acceptable level. SKI has in its regulatory supervision not found any known deficiencies in the barriers which could result in release of radioactive substances in excess of the permitted levels. SKI considers that improvements have been implemented during the year in the management, control and following up of safety work at the plants. In...
Innehållstyp: Publikationer -
2010:02 Metodutveckling för integrerad validering
Denna rapport har skrivits på uppdrag av Strålsäkerhetsmyndigheten (SSM). Syftet var att stödja Strålsäkerhetsmyndigheten avseende metodutveckling inom Human Factors området rörande integrerad validering vid kontrollrum. Referensram för arbetet har varit befintliga rekommendationer och anvisningar från kärnkraftsområdet, erfarenheter...
Innehållstyp: Publikationer -
2009:15 Improvement and Validation of Weld Residual Stress Modelling Procedure
Weld residual stresses have a large influence on the behavior of cracks growing under normal operation loads and on the leakage-flow from a through-wall crack. Accurate prediction of these events is important in order to arrive at proper conclusions when assessing detected flaws, for inspection planning and for assessment of leak-before-break margins. Therefore, it is very important to have...
Innehållstyp: Publikationer -
2010:16 Guidance to Risk-Informed Evaluation of Technical Specifications using PSA
No guidance documents for risk-informed analysis and assessment of changes in Limiting Conditions for Operation (LCO:s) in TS (Technical Specifications) have been available in the Nordic countries. In the U.S. several guidance documents, primarily developed by the owners groups for PWRs and BWRs, exist. Guidance for analysis of TS changes in this report generally follows the U.S. Regulatory...
Innehållstyp: Publikationer -
2010:42 Using the EPRI Risk-Informed ISI Methodology on Piping Systems in Forsmark 3
In the SSM regulation SSMFS 2008:13, it is stated that the selection of locations for inspection of mechanical components shall be based upon the risk for core damage or the risk of release of radioactive substances. Both qualitative and quantitative measures of the relative risk are allowed to be used. So far only the PWRs in Sweden are using a quantitative procedure to evaluate the risk...
Innehållstyp: Publikationer -
2009:26 Tillämpning av stabil spricktillväxt vid brottmekanisk bedömning av defekter i sega material
Vid brottmekaniska analyser studeras i huvudsak haverimekanismerna sprött brott och plastisk kollaps samt kombinationen av dessa. Den styrande mekanismen bestäms av komponentens materialegenskaper, styrande belastning och defektens geometri. Proceduren enligt SKI-rapport 99:49 är idag en av de mest använda metoderna vid brottmekaniska analyser. Proceduren som baseras på...
Innehållstyp: Publikationer