A loss of pressure in the primary circuit on the aft reactor.

Loss of pressure on the primary circuit on the aft reactor.

Read it again. "ln case of sudden drop in the pressure of the primary circuit

Solid-state pressure switches contain one or more strain gauge pressure sensors, a transmitter, and one or more switches. In addition to actuating the pressure switch circuit, they can provide a proportional analog or digital output.

- "In case of sudden drop... in the pressure of the primary circuit... measures must be taken to reduce precipitation heat release."