Safety Evaluation Of Indian Nuclear Power Plants Post Fukushima Incident
Flood levels and margins for inland sites
Station
Original
designed flood
level
Revised levels taken for
assessment
(in meter)
Emergency power DGs
elevation
(in meter)
Margin
available
(in meter) #
(in meter)
RAPS-1&2
354.20
359.60*
356.6 (Original DGs)
366.6 (Retrofitted DG)
7.00
NAPS-1&2
180.80
187.30
6.50
KAPS-1&2
50.30
51.30
1.00
RAPS-3&4
359.60
384.30
24.70
Design is adequate-
revision not required
RAPS-5&6
359.60
393.30
33.70
KGS-1&2
38.90
41.30
2.40
KGS-3&4
38.90
41.60
2.70
•For RAPS-1&2, Upstream dam break is considered for revision of flood level for
assessment.
# Even though margins are available, Task forces assumed no margin and recommended
various measures. Beyond this margins, core cooling can be maintained through hook up
arrangements as recommended by task forces.View entire presentation