Document: NUREG-0800
Document ID: 0270f2da-6b35-430d-b965-99a995adea26
Document Type: srp
Title: (Ref. 3).
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052350476.pdf
Revision Date: 2023-06
Chapter: 7
Section ID: 7.1
CFR Part: 
CFR Title: 

Content:
rds as the corresponding equipment in the main control room. Control transfer devices should be located remote from the main control room and their use should initiate an alarm in the control room. An important part of the review is the engineering drawing review atthe OL stage. The drawing review should confirm that the design and layout meet the applicable criteria listed under subsection II. An applicant may choose to take exceptions to some of the guidelines in the branch technical -positions, Shutdown remote from the control room is not an event analyzed in the accident analysis in Chapter 15 of the SAR. Specific scenarios have not been speci- fied upon which the adequacy of shutdown capability remote from the control room is evaluated. However, smoke due to a fire in the control room has long been recognized as the type of event which could force the evacuation of the control room and result in a need to effect safe shutdown remote from the control room. Branch Technical Position CMEB 9.5-1 to SRP Section 9.5.1 establishes the bases for safe shutdown with respect to fire protection. Specifically fire damage.limits as they impact on safe shutdown have been established therein. These limits do not require consideration of an additional random-single failure in the evaluation of the capability to safely shutdown as a consequence to fires. The evaluation of conformance to the BTP is addressed in'SRP Section 9.5.1. Therefore, the application of the single failure criterion to remote shutdown is only applicable for other events which could cause the control room to be uninhabitable. These events would not result in consequential damage or unavailability of systems required for safe shutdown. 7.4-6 Rev. 2 - July 1981 regulatory guides, IEEE standards and propose alternate ways of meeting the General Design Criteria requirements (which are mandatbry). Any exceptions to the criteria are evaluated on an individual case basis; Exceptions are judged on the basis of the