Document: NUREG-0800
Document ID: 364356ce-150e-4dcb-865f-720ae91d37a7
Document Type: srp
Title: CONTAINMENT SPRAY AS A FISSION PRODUCT CLEANUP SYSTEM
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070473.pdf
Revision Date: 2023-06
Chapter: 6
Section ID: 6.5.2
CFR Part: 
CFR Title: 

Content:
eferenced SRP sections.11 II. ACCEPTANCE CRITERIA The acceptance criteria for the fission product cleanup function of the containment spray system are based on meeting the relevant requirements of the following regulations: A. General Design Criterion 41 (Ref. 1) as it relates to containment atmosphere cleanup 12 systems being designed to control fission product releases to the reactor containment following postulated accidents. B. General Design Criterion 42 (Ref. 2) as it relates to containment atmosphere cleanup 13 systems being designed to permit appropriate periodic inspections. C. General Design Criterion 43 (Ref. 3) as it relates to containment atmosphere cleanup 14 systems being designed for appropriate periodic functional testing. Specific criteria necessary to meet the relevant requirements of General Design Criteria 41, 42, and 43 include: 1. Design Requirements for Fission Product Removal The containment spray system should be designed in accordance with the requirements of ANSI/ANS 56.5 (Reference 415) , except that requirements for any spray additive or 15 other pH control system in this reference need not be followed. a. System Operation The containment spray system should be designed to be initiated automatically by an appropriate accident signal and to be transferred automatically from the injection mode to the recirculation mode to ensure continuous operation until the design objectives of the system have been achieved. In all cases, the operating period should not be less than two hours. Additives to the spray solution may be initiated manually or automatically, or may be stored in the containment sump to be dissolved during the spray injection period. b. Coverage of Containment Building Volume DRAFT Rev. 3 - April 1996 6.5.2-4 In order to ensure full spray coverage of the containment building volume, the following should be observed: (1) The spray nozzles should be located as high in the containment building as practicable to maximize the spray