Regional Basic Professional Training Course in Korea

❙ 851 ❙
15. Operational Safety
address' system is provided, as this is needed under emergency situations. There are
sufficient alarm indicators, and they are easy to differentiate from announcements that
provide status information. Availability of systems and equipment are clearly displayed to
the operator to indicate isolations, positions of motor and manually operated valves,
protection system trains, electric supply to different systems, etc. Defective systems and
equipment also are clearly indicated and properly labeled.
Plant equipment is easily accessible for field operations and monitoring. All plant areas,
systems and associated components are clearly and properly identified. Particular
attention is paid to identification of unit system valves and electrical supplies to avoid
erroneous operations or work on the wrong equipment. Lighting in the control room is
adequate and instrumentation is unobstructed, clearly readable and understandable to the
operator.
The operators should be knowledgeable of the plant status and limitations. Process
computers are used by the staff to evaluate data for short‐ and long‐term overview of plant
performance. There are plant labeling and housekeeping instructions.
Equipment needed for operational activities is readily available to the staff:
Portable and permanently installed communications equipment is available and
operable at control stations;
Survey instruments is available;
Control panels and frequently used equipment are both physically and
environmentally accessible to the operators.
Facilities assuring habitability of control rooms such as emergency ventilation and
tightness of the control rooms, as well as monitoring of radioactivity, etc., are provided. A