Alarm generation

Alarms may be generated either automatically, following detection of an exceptional situation by sensors, or manually, by the operators reporting about a hazard.

Operator generated alarms

Operators occasionally fail in alarm generation, in various situations:

• Inadequate training: for example, when the operators are used to rely on other sources of information (such as hazard indicators).
• Conflicting information: for example, when the information received from other sources is misleading (as was the case of the TMI PORV state indicator)
• Hesitation: for example, when the operators are not sure about the situation, and the are afraid of being accused for creating unnecessary panic (as is often the case with war alarms).

Default alarming

  Whenever possible, by default, the alarms should be generated automatically, by alarm trips.

Related topic

Updated on 14 Mar 2017.