Level 3 PSA - EDF Hinkley Point

HPC-NNBOSL-U0-000-RES-000028 Version 1.0
Level 3 PSA
NOT PROTECTIVELY MARKED
Table 18: Results for Assessment of Societal Risk
Release
Category
Frequency of
Occurrence
[Ref. 11]
Frequency of
Occurrence for Two
Reactors
Probability of
100 deaths on
Occurrence of
Release [Ref.
18]
Annual Site
Frequency of
100 deaths
200 8.71E-10 1.74E-09 0.908 1.58E-09
201 2.90E-10 5.80E-10 0.972 5.64E-10
202 1.29E-12 2.58E-12 0.950 2.45E-12
203 1.61E-12 3.22E-12 1.000 3.22E-12
204 1.05E-09 2.10E-09 0.972 2.04E-09
205 1.19E-09 2.38E-09 1.000 2.38E-09
206 4.44E-09 8.88E-09 0.965 8.57E-09
301 7.53E-12 1.51E-11 0.986 1.48E-11
302 1.08E-11 2.16E-11 0.986 2.13E-11
303 9.69E-09 1.94E-08 0.972 1.88E-08
304 1.00E-08 2.00E-08 0.986 1.97E-08
401 2.02E-11 4.04E-11 0.957 3.87E-11
402 7.92E-12 1.58E-11 0.972 1.54E-11
403 9.35E-10 1.87E-09 0.915 1.71E-09
404 1.05E-09 2.10E-09 0.972 2.04E-09
501 5.50E-13 1.10E-12 0.014 1.54E-14
502 1.45E-10 2.90E-10 0.489 1.42E-10
503 6.45E-10 1.29E-09 0.007 9.03E-12
504 1.30E-07 2.60E-07 0.163 4.24E-08
602 7.90E-10 1.58E-09 0.440 6.95E-10
701 1.02E-08 2.04E-08 0.957 1.95E-08
702 5.14E-09 1.03E-08 1.000 1.03E-08
802 3.84E-09 7.68-09 0.993 7.63E-09
SFP * 2.83E-09 5.66E-09 1.000 5.66E-09
NCD (10%) † 1.57E-09 3.14E-09 0.121 3.80E-10
Total 1.85E-07 3.69E-07 1.44E-07
Only Dose Band 5 releases are included in this table as they are the only events that
caused more than 100 fatalities.
* The value for SFP is calculated as a combination of the Dose Band 5 SFP events detailed in Table 16.
† The numerical value for NCD (10%) is calculated as the combined contribution from the Dose Band 5
LOCA 10% fuel failure and Feed and Bleed 10% fuel failure events detailed in Table 14.
UNCONTROLLED WHEN PRINTED
NOT PROTECTIVELY MARKED
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