Document: NUREG-0800
Document ID: 9e3f4564-4ddf-4369-b699-a42709a80b66
Document Type: srp
Title: CONTAINMENT SPRAY AS A FISSION PRODUCT CLEANUP SYSTEM
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0701/ML070190178.pdf
Revision Date: 2023-06
Chapter: 6
Section ID: 6.5.2
CFR Part: 
CFR Title: 

Content:
the as-built piping layout, the testing should be performed at full flow. 3. Technical Specifications. The technical specifications should specify appropriate limiting conditions for operation, tests, and inspections to provide assurance that the system is capable of performing its design function whenever the reactor is critical. These specifications should include: A. The operability requirements for the system, including all active and passive devices, as a limiting condition for operation (with acceptable outage times). The following items should be specifically included: containment spray pumps, additive pumps (if any), additive mixing devices (if any), valves and nozzles, additive quantity and concentration in additive storage tanks, and nitrogen (or other inert gas) pressure in additive storage tanks. B. Requirements for periodic inspection and sampling of the contents of additive storage tanks to confirm that the additive quantity and concentrations are within the limits established by the system design. C. Requirements for periodic testing and exercising of the active components of the system and verification that essential piping and passive devices are free of obstructions. Acceptable methods for computing fission product removal rates by the spray system are given in Subsection III.4.c, “Fission Product Cleanup Models.” Although credit is granted for containment spray removal of fission products in the calculations of accident doses, the acceptance criteria of containment leakage in SRP Section 6.2.1.1.A and the acceptance criteria of the engineered safety feature atmosphere cleanup systems in SRP Section 6.5.1 should still be met. 6.5.2-7 Revision 4 - March 2007 Technical Rationale The technical rationale for application of these acceptance criteria to the areas of review addressed by this SRP section is discussed in the following paragraphs: 1. GDC 41 establishes the design requirements for containment atmosphere cleanup systems which function to