RELAP5/MOD3.3 Best Estimate Analyses for Human Reliability Analysis

Table 1

Sequence of main events for LOCA calculations.

	Time (s)
Analyzed cases (break sizes)	1.27 cm	1.91 cm	2.54 cm	5.08 cm	7.62 cm	15.24 cm
Break occurrence	0.0	0.0	0.0	0.0	0.0	0.0
Rx trip signal generation	880.7	274.2	112.5	21.5	3.3	2.6
Turbine trip	880.7	274.2	112.5	21.7	3.3	2.7
SI signal generation	891.4	282.4	122.9	29.9	13.4	6.3
MFW isolation	891.4	282.5	122.9	29.9	13.5	6.3
LPSI 1 and 2 pump running	901.4	292.4	132.9	39.9	23.5	16.3
RCP 1 and 2 trip	1105.0	432.0	260.9	120.4	91.2	68.7
SG PORVs first discharge	1230	538	372	223	232	N.A.
PRZ PORV 2 first discharge	8340	N.A.	N.A.	N.A.	N.A.	N.A.
Accumulator no. 1 injection	N.A.	N.A.	N.A.	1802.2	712.5	188.3
Accumulator no. 2 injection	N.A.	N.A.	N.A.	1802.0	712.5	188.3
Accumulator no. 1 isolation	N.A.	N.A.	N.A.	8612.3	4111.3	634.1
Accumulator no. 2 isolation	N.A.	N.A.	N.A.	8612.3	4111.8	634.0
LPSI 1 and 2 first injection	N.A.	N.A.	N.A.	N.A.	4910	864