Regional Basic Professional Training Course in Korea

Regional Basic Professional Training Course (BPTC) on Nuclear Safety
Testing consists of post maintenance testing, surveillance testing and in‐service inspection
testing. The purpose of the tests is to confirm that the structures, systems and components
(SS&C) continue to meet the design intent.
12.1.1. Surveillance
The operating organization establishes the surveillance programme, which verifies that
the SS&C important to safety are continuously ready to operate and are able to perform
their safety functions as designed. Such a surveillance programme also detects ageing
trends to prevent potential long‐term degradation.
The objectives of the surveillance programme are basically to detect and correct any
anomalous condition before it significantly affects safety. The anomalous conditions
which are of concern to the surveillance programme include not only deficiencies in
SS&C, software performance and errors in human performance, but also trends within the
accepted limits, the analysis of which may indicate that the plant is deviating from the
design intent.
12.1.2. In‐service inspection
During the plant’s service life, the operating organization examines SS&C for possible
deterioration so as to determine whether they are acceptable for continued safe operation
or whether remedial measures are necessary. Emphasis is placed on examination of the
pressure boundaries of the primary and secondary coolant system because of their
importance to safety and the possible severity of the consequences of failure.
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