Annunciators
Function
Overhead and auxiliary annunciator systems provide alarm indication for plant parameter deviations requiring operator attention.
Exam — 2020 Q66
Annunciator window marking per OP-AA-102-103-1001 (Operator Burdens Program): single strand of red tape diagonally = one or more inputs inoperable (reflash still works). Two pieces of red tape in an "X" = entire window inoperable. Red tape is NOT used to identify maintenance testing in progress.
Connections
- Related systems: RPS/SSPS
- Related procedures: OP-AA-102-103-1001 — Operator Burdens Program
- Related exams: 2020 NRC Written Exam
- 2020 Q66 — OHA window red tape marking conventions