Regional Basic Professional Training Course in Korea

Regional Basic Professional Training Course (BPTC) on Nuclear Safety
Testing of the operability and tightness of closure devices that are part of the
boundaries;
Monitoring leak detection systems (process and area radiation instruments,
temperature detectors, acoustic detection equipment, etc.);
Monitoring to assure that transition (e.g. reference nil‐ductility) temperature
considerations are satisfied;�
Monitoring the chemical quality of the primary or secondary reactor coolants as
appropriate;
Monitoring the samples subject to irradiation of reactor pressure vessel
components. Surveillance measures necessary to verify containment integrity
include:
Leak rate tests performed on the containment;
Tests of penetration seals and closure devices such as air locks and valves that are
part of the boundaries to demonstrate their leak tightness and, where appropriate,
their operability;
Structural integrity inspections (e.g. those performed on liner and pre‐stressing
tendons);
Monitoring conditions within the containment such as temperatures, pressures and
atmospheric composition.
The surveillance programme includes periodic tightness checks, pressure and/or leak tests
of all systems, parts of which are outside the containment and which could contain highly
radioactive liquids or gases following an accident. Examples of these systems are:
Residual heat removal systems;
Safety injection systems;
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