Regional Basic Professional Training Course in Korea

Regional Basic Professional Training Course (BPTC) on Nuclear Safety
isolated from the boundary during normal operation by two valves
3) Quality Group C :
(a) cooling water and auxiliary feed water systems designed for (i) emergency core
cooling, (ii) post accident containment heat removal, (iii) post accident
containment atmosphere cleanup, or (iv) residual heat removal from the reactor
and from the spent fuel storage pool (including primary and secondary cooling
systems),
(b) cooling water and seal water systems
(c) systems connected to the reactor coolant pressure boundary and isolated from that
boundary during normal reactor operation by two valves
(d) systems that may contain radioactive material whose offsite doses exceed 0.5 rem
4) Quality Group D : not part of the reactor coolant pressure boundary or included in
Quality Groups B or C, but are part of systems or portions of systems that contain or
may contain radioactive material.
6.3.3. Quality Group Application to Fluid Systems
The following fluid systems important to safety for typical pressurized water reactor
(PWR) plants are examples of those that are reviewed by the staff with regard to quality
group classification. It should be noted that systems whose function is important to safety
in accordance with RG 1.26 and that are used in passive system light water reactor
(LWR) designs or non‐LWR designs may not be identified by these names.
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