Document: NUREG-0800
Document ID: 848ab24d-ac9b-4ec5-85ff-099e13b769c3
Document Type: srp
Title: CONTAINMENT SPRAY AS A FISSION PRODUCT CLEANUP SYSTEM
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0601/ML060150001.pdf
Revision Date: 2023-06
Chapter: 6
Section ID: 6.5.2
CFR Part: 
CFR Title: 

Content:
| | A. GDC 41 establishes the design requirements for containment atmosphere cleanup systems | which function to reduce the concentration and quality of fission products released to the | environment following postulated accidents. The radiological consequences of accidents in | Chapter 15 of the SAR depend on the quantity and quality of the fission products released | from containment. The containment spray system may be relied upon to provide an | effective means for removal of iodine and other fission products released to the | containment atmosphere following a design-basis accident. Fission product iodine is | removed and retained by the spray solution and is unavailable for release to the | environment. Compliance with GDC 41 ensures that the containment spray system will | accomplish the fission product removal function assumed in the Chapter 15 radiological | consequence calculations. | | B. GDC 42 establishes the requirements for the inspection of containment atmosphere | cleanup systems. The inspection of important components such as pumps, valves, tanks, | and flow paths ensures the integrity and capability of the system. The containment spray | 6.5.2-7 Rev. 3 - December 2005 system may be credited with providing fission product removal and retention following | design-basis accidents. Proper operation of the containment spray system depends on the | integrity of system pumps, valves, spray nozzles, chemical additive systems, and flow | paths. Periodic inspection ensures that these components are capable of performing their | design function in the event of an accident. | | C. GDC 43 establishes the requirement that the design of the containment atmosphere | cleanup systems allow appropriate periodic functional testing. The capability of the | containment spray system to perform the function of fission product removal depends on | the operability of the pumps, valves, nozzles, chemical additive systems, actuation circuitry, | and power supplies for the