ROSA/LSTF Tests and Posttest Analyses by RELAP5 Code for Accident Management Measures during PWR Station Blackout Transient with Loss of Primary Coolant and Gas Inflow

Table 1

Major conditions of LSTF tests.

Item	Condition
	TR-LF-18	TR-LF-17	TR-LF-16
Break size	0.5%	0.2%	0.1%
Break location	Side of cold leg		Top of cold leg
Break valve open		Time zero
High-pressure injection system		Total-failure
Onset of SG secondary-side depressurization by fully opening relief valves in both SGs	10 min after break	20 min after break	Time zero
Onset of AFW injection into secondary-side of both SGs	Concurrent with SG secondary-side depressurization