Document: NUREG-0800
Document ID: cee15d6b-ff87-4937-bd26-c31e9d4f6afd
Document Type: srp
Title: B-7
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0705/ML070550087.pdf
Revision Date: 2023-06
Chapter: 7
Section ID: 7.1
CFR Part: 
CFR Title: 

Content:
Revision 5 - March 2007 EMI qualification in accordance with the guidance of Regulatory Guide 1.180, Revision 1, "Guidelines for Evaluating Electromagnetic and Radio-Frequency Interference in Safety-Related Instrumentation and Control Systems," is an acceptable means of meeting the qualification requirements for EMI and electrostatic discharge. Lightning protection should be addressed as part of the review of electromagnetic compatibility. Lightning protection features should conform to the guidance of Regulatory Guide 1.204, "Guidelines for Lightning Protection of Nuclear Power Plants." The organizations responsible for the review of equipment qualification to harsh environments and seismic events will perform the evaluation of conformance to the requirements of GDC 2 and 4 and 10 CFR 50.49 to ensure the requirements for equipment qualification to harsh environments and seismic events are met. Guidance for the review of this equipment qualification is given in SRP Sections 3.10 and 3.11. 4.5. Channel Integrity (IEEE Std. 279-1971 Clause 4.5) Information provided in Clauses 3(7) and 3(8) of IEEE Std. 279-1971 is reviewed to confirm that the design includes the qualification of equipment for the conditions identified in the design bases. Failures may not be credited to protect the integrity of other equipment. The review should confirm that tests have been conducted on protection system equipment components and the system racks and panels as a whole to demonstrate the functional performance requirements of the protection system over the range of transient and steady-state conditions of both the energy supply and the environment. Where tests have not been conducted, the applicant should confirm that the protection system components are conservatively designed to operate over the range of service conditions. Auxiliary features necessary to support protection system performance should meet all of the requirements of IEEE Std. 279-1971. Other auxiliary features that are