Abstract
ITER will be the first large-scale tokamak to be designed as a nuclear facility to provide public protection from external hazards such as earthquakes. The design approach for such events has been developed consistent with ITER's moderate hazards and overall safety approach on a basis of the ITER site assumptions. Seismic design is described including selection of ground motions for design purposes, seismic safety requirements, and the seismic classification scheme. The results of preliminary seismic assessments are summarized including the potential for seismically induced plasma vertical displacement events (VDE). Finally, potential facility modifications available to deal with site-specific external hazards are suggested. At the Detailed Design Report stage of the Engineering Design Activity (EDA), it is concluded that ITER has been designed to deal with the site design assumptions for earthquakes and can be designed to safety cope with a range of site-specific external hazards with modest changes to the facility.
Similar content being viewed by others
REFERENCES
Y. Shimomura et al. (1996). Safety characteristics of ITER. IAEA Plasma Phys., Montreal, October.
International Atomic Energy Agency (1988). Basic Safety Principles for Nuclear Power Plants, Safety Series No. 75-INSAG-3, Vienna.
Earthquake and Associated Topics in Relation to Nuclear Power Plant Siting (1991). IAEA Safety Series No. 50-SG-S1 (Rev. 1).
Seismic Design and Qualification for Nuclear Power Plant Sitting (1992). IAEA Safety Series No. 50-SG-D15.
ITER General Design Requirements (1996).
Revised Livermore Seismic Hazard Estimates for Sixty-Nine Nuclear Power Plants East of the Rocky Mountains (1994). NUREG-1488, USNRC, April.
Technical Basis for the ITER Interim Design Report, Cost Review and Safety Analysis (1996). ITER EDA Documentation Series No. 7, IAEA, Vienna.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Gordon, C.W., Saji, G., Barabaschi, P. et al. The ITER Safety Approach for External Events. Journal of Fusion Energy 16, 19–24 (1997). https://doi.org/10.1023/A:1022552627032
Issue Date:
DOI: https://doi.org/10.1023/A:1022552627032