04.02.2013 Views

Regional Basic Professional Training Course in Korea

Regional Basic Professional Training Course in Korea

Regional Basic Professional Training Course in Korea

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

<strong>Regional</strong> <strong>Basic</strong> <strong>Professional</strong> <strong>Tra<strong>in</strong><strong>in</strong>g</strong> <strong>Course</strong> (BPTC) on Nuclear Safety<br />

performed <strong>in</strong> the presence of the expert on the basis of a test program certified by the<br />

tester <strong>in</strong> advance.<br />

The <strong>in</strong>tervals and the extent of these surveillance programs are laid down between the<br />

operator and the expert, and <strong>in</strong> accordance with the recommendations of the<br />

manufacturer, and are primarily based on the standpo<strong>in</strong>t that the <strong>in</strong>terval must be chosen<br />

so the reliability considerations of the system and plant as a whole are not adversely<br />

affected. In a similar way, the time available for each activity on a certa<strong>in</strong> component or<br />

system is once aga<strong>in</strong> the product of availability considerations together with fulfillment<br />

of safety criteria for the nuclear power plant <strong>in</strong> the case of an <strong>in</strong>cident and its capability of<br />

cop<strong>in</strong>g with this <strong>in</strong>cident. In general, the experience and the guidel<strong>in</strong>es from conventional<br />

rules and regulations have a significant <strong>in</strong>fluence on these two parameters.<br />

The surveillance programs are performed as approved by regulatory body and the<br />

surveillance results are reviewed as required by regulatory body, too. The programs are<br />

made upon the requirement described <strong>in</strong> plant technical specification and f<strong>in</strong>al safety<br />

analysis report for the given plant. Any changes from the orig<strong>in</strong>al programme are<br />

subjected to the approval of regulatory body.<br />

12.4.2. Monitor<strong>in</strong>g<br />

Monitor<strong>in</strong>g systems can be divided <strong>in</strong>to two categories. There are permanently <strong>in</strong>stalled<br />

monitors and mobile monitors. Mobile monitors are usually used <strong>in</strong> radiation safety.<br />

Examples are survey meters, dose rate monitor<strong>in</strong>g, contam<strong>in</strong>ation monitors or laboratory<br />

<strong>in</strong>struments. The permanently <strong>in</strong>stalled monitors are, <strong>in</strong> case of radiation safety, such as<br />

permanent dose rate <strong>in</strong>stallations, measurement of exhaust air activity for noble gasses,<br />

aerosols and iod<strong>in</strong>e, or measurement of activity <strong>in</strong> the secondary cool<strong>in</strong>g circuit. All those<br />

❙ 780 ❙

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!