Document: NUREG-0800
Document ID: 16922d4c-3f36-4add-8a31-0ec35a44f030
Document Type: srp
Title: REACTOR COOLANT SYSTEM HIGH POINT VENTS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0707/ML070770005.pdf
Revision Date: 2023-06
Chapter: 5
Section ID: 5.4.12
CFR Part: 
CFR Title: 

Content:
ts safety functions and that the integrity of the RCPB is maintained. 5. GDC 14 requires that all RCPB components be designed and constructed such that there is an extremely low probability that these components will fail and cause a primary leak or LOCA. The RCS vent system is an integral part of the RCPB which is designed to establish a controlled leakage path to vent gases from the RCS. Appropriate design and construction standards will ensure that in its static condition the RCS vent system will not leak, and in its dynamic condition will operate only when called on to do so. Following GDC 14 will ensure that the integrity of the RCPB is preserved and that adequate core cooling is maintained. 6. GDC 17 requires that onsite and offsite electric power systems be provided for all safety-related structures, systems, and components. The electric power systems must have adequate independence, redundancy, and testability and provide sufficient capacity and capability to assure that fuel and RCPB design limits are not exceeded and 5.4.12-7 Revision 1 - March 2007 that core cooling and containment integrity are maintained. The RCS vents require electric power to function properly. Meeting the requirements of GDC 17 will ensure that power is maintained to the vent system during accidents. This will enable the vent system to fulfill its safety function of venting gases from the RCS, thereby ensuring that adequate core cooling is established and maintained. 7. GDC 19 requires that the plant design incorporate a control room from which emergency actions can be taken to maintain the plant in a safe condition under accident conditions. The reactor coolant vents are remotely operable from the control room such that the vent system can properly fulfill its safety function of venting primary system gases during an accident. Compliance with GDC 19 will provide assurance that control room operability is preserved such that the RCS vents can be operated during an accident, thereby