Table 5: Chronology of events during LB LOCA.

Time, secEvent

0.0Double-ended guillotine break
0.0Total loss of electricity
0.0Turbine isolation begins
0.03Scram signal
0.1More then three main coolant pumps dropped out
4.76Pressurizer pressure <10,8 MPa
5.41Start of hydroaccumulator injection to downcomer
5.46Start of hydroaccumulator injection to upper plenum
6.99Pressurizer level <2.76 m
8.22Pressurizer level <2.26 m
16.00Start of high-pressure injection system
32.90Start of low-pressure injection system