INES-event
INES 1

A NON USUAL EVENT DUE TO THE LIBERATION OF GASES INSIDE THE PLANT

A non usual event was declared due to the detection of domestic gas odor. The cause of the event was the activation of the relief valve of the stationary tank of gas placed at the roof of the control building. The gas was suctioned by the HVAC system. This event took place during the task to fill the tank.
Availability: Total. Original classifiaction: "0" from Table I, column A3 of the INES users manual. Because explosive levels were not reached, but the classification increases to "1" because if explosive levels were reached negative effects on the safety of the plant would have existed.

Location: LAGUNA VERDE-1
Event date: Thu, 28-05-1992
Nuclear event report
Legenda & explanation