Document: NUREG-0800
Document ID: f03d2c71-27a1-41fd-9362-1e62c6142e13
Document Type: srp
Title: Containment Systems and Severe Accidents (Tier 1)
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070653.pdf
Revision Date: 2023-06
Chapter: 14
Section ID: 14.3.11
CFR Part: 
CFR Title: 

Content:
ssary to support performance of the safety functions of the Class 1E electrical components. The qualification of I&C equipment for "other than harsh" environments should be addressed in the I&C ITAAC. 11. Interface requirements The interface requirements will be identified in the Design Descriptions for out of scope or partially out of scope systems and cross-referenced in a separate section of the certified information. An example for a BWR is the Reactor Service Water System. The methodology for developing ITAAC for the interface requirements will be described in the DCD Tier 2 or certified information. Non-safety systems which cannot impact safety systems do not need Interface Requirements. Specific in-scope design details which preclude a non-safety system from impacting a safety system must be addressed in Tier 1. This is discussed further in Appendix A to this SRP section. 12. Accessibility for ISI Testing and Inspection The accessibility does not have to be addressed in Tier 1, but must be addressed in Tier 2. The NRC does not intend to grant reliefs to the ISI requirements after design certification. 13. Numeric performance values Numeric performance values for SSC should be specified as ITAAC acceptance criteria to demonstrate satisfaction of a Design Commitment (DC). The numeric performance values do not have to be specified as DC and in the DD unless there is a specific reason to include them there. Key numbers and physical parameters used in the Chapter 6, 14.3, and 15 safety analyses and significant parameters of the PRA should be included in the DD. 14.3-43 DRAFT Rev. 0 - April 1996 14. Normally, all design commitments in the DD Tier 1 must be verified by a specific ITAAC, unless there are specific reasons why this is not necessary. A single ITAAC may verify several design commitments. For example, the basic configuration ITAAC verifies the physical arrangement of the system using the design description and figures, in addition to verifications of