Is the operator timely informed about deviations when performing the shut down function?
In order to be able to intervene, operators must be able to detect any failures in shutdown actions. A separate deviation list could be presented to the operator. Check: process control system, process shutdown system, emergency shutdown system, fire and gas detection and depressurizing system.
Comments/Recommendations
NUREG0700, point 1.1-22, 23 p. 13, point 5.3-1, p. 306.FA § 32.
DC: Not applicable to the DC