Document: NUREG-0800
Document ID: 8238d583-b5fc-4a78-9cf3-4407f130bbbd
Document Type: srp
Title: SYSTEM QUALITY GROUP CLASSIFICATION
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0631/ML063190003.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.2.2
CFR Part: 
CFR Title: 

Content:
. 13. Boiler and Pressure Vessel Code, "Section III, Nuclear Power Plant Components," and "Section XI, Rules for Inservice Inspection of Nuclear Power Plant Components," American Society of Mechanical Engineers. 3.2.2-14 Revision 2 - March 2007 Table A-1 Added Guidance for Classification and Application of Quality Standards System or Component Quality Group References 1. Combustible Gas Control System B (1) RG 1.7 2. Compressed Air Systems required to perform a safety function C SRP 9.3.1 3. Containment Isolation System: a. Penetrations including associated piping and isolation valves b. Instrument lines penetrating containment c. Isolation barriers comprised of closed systems inside containment d. Isolation barriers comprised of closed systems outside containment e. Closed systems in secondary containment proposed as boundaries to preclude bypass leakage A/B (2) A/B (2) B (3) B (2) B (2) B (4) SRP 6.2.4 RG 1.141 RG 1.11 SRP 6.2.4 SRP 6.2.4 Branch Technical Position 6-3 4. Emergency Diesel Engine: a. Fuel Oil Storage and Transfer System b. Cooling Water System c. Starting System d. Lubrication System e. Combustion Air Intake and Exhaust System C (5) C C C C RG 1.137 5. Equipment and Floor Drainage System C (6) SRP 9.3.3 6. Gas Treatment Systems which are considered as engineered safeguards systems B Table A-1 (continued) System or Component Quality Group References 3.2.2-15 Revision 2 - March 2007 7. BWR Main Steam Isolation Valve Leakage Control System and necessary subsystems B/A (7) RG 1.96 8. Plant Ventilation Systems for areas such as the control room and engineered safety features rooms C 9. PWR Pressurizer PORVs, associated components, and Block Valves (8) Generic Letter 90-06 10. Radioactive Waste Management Systems (9) RG 1.143 11. Safety-Related Instrument Sensing Lines B,C (10) RG 1.151 12. Ultimate Heat Sink and Supporting Systems C (11) SRP 9.2.5, RG 1.72 NOTES: (1) RG 1.7 describes acceptable methods for the control of combustible gas in containment,