Document: NUREG-0800
Document ID: 92ba0daf-489d-4f71-82db-d6d781c71573
Document Type: srp
Title: as an aid for establishing consistency and comprehensiveness in the review of the systems.
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070664.pdf
Revision Date: 2023-06
Chapter: 14
Section ID: 14.3
CFR Part: 
CFR Title: 

Content:
the direct connection of the offsite sources to the Class 1E divisions and to inspect for the independence/separation of the offsite sources. Lightning protection and grounding features are inspected as part of the basic configuration ITAAC. In addition, the design description includes "interface" requirements for the portions of the offsite power outside of the standard design scope; however, no ITAAC are included for the interfaces. The interfaces define the requirements that the offsite portion of the design (that is out-of-scope) must meet to support and not degrade the in-scope design (See also Appendix A to SRP Section 14.3). 2. Containment Electrical Penetrations To ensure the containment electrical penetrations (both those containing Class 1E circuits and those containing Non Class 1E circuits) do not fail due to electrical faults and potentially breach the containment, ITAAC should verify that all electrical containment penetrations are protected against postulated currents greater than their continuous current rating. 3. Combustion Turbine Generator To ensure the availability of the combustion turbine generator (CTG) as an alternate AC source for station blackout events, the ITAAC should verify, through inspection and testing, the CTG's and its auxiliaries inclusion in the design and its independence from other AC sources. In addition, the standard design's PRA should be used for an indication of the importance of the CTG from a risk perspective. 4. Lighting To ensure that portions of the plant lighting remain available during power failures, ITAAC should be developed to verify the continuity of power sources for the lighting systems. DRAFT Rev. 0 - April 1996 14.3.6-6 Electrical Power For Non-Safety Plant Systems To ensure that electrical power is provided to support the non-safety plant systems, Design Descriptions cover portions of the non-Class 1E electrical systems. A basic configuration ITAAC may be utilized to verify the functional arrangement and