Document: NRC Regulatory Guide
Document ID: b3436475-0452-4460-897e-ef2d0023a709
Document Type: regulatory_guide
Title: Guidelines for Lightning Protection of Nuclear Power Plants (Rev. 1)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML2220/ML22208A232.pdf
Revision Date: 2023-05
Chapter: 
Section ID: RG-1.204
CFR Part: 
CFR Title: 

Content:
for Generating Station Grounding” (Ref. 1); IEEE Std. 666-2007, “IEEE Design Guide for Electrical Power Service Systems for Generating Stations,” (Ref. 2); IEEE Std. 1050-2004, “IEEE Guide for Instrumentation and Control Equipment Grounding in Generating Stations,” (Ref. 3); and IEEE Std. C62.23-2017, “IEEE Application Guide for Surge Protection of Electric Generating Plants,” (Ref. 4) as an acceptable process for demonstrating compliance with the applicable U.S. Nuclear Regulatory Commission (NRC) regulations for adequate lightning protection of safety-related systems, structures, and components (SSCs) in production and utilization facilities. Applicability This RG applies to licensees and applicants subject to Title 10 of the Code of Federal Regulations (10 CFR), Part 50, “Domestic Licensing of Production and Utilization Facilities” (Ref. 7) and 10 CFR Part 52, “Licenses, Certifications, and Approvals for Nuclear Power Plants” (Ref. 8). With respect to 10 CFR Part 50, this RG applies to holders of or an applicant for an operating license. With respect to 10 CFR Part 52, this RG applies to applicants and holders of combined licenses, standard design certifications, standard design approvals, and manufacturing licenses. This RG does not apply to production and utilization facilities that have submitted certifications as required by 10 CFR 50.82(a)(1) and by 52.110(a). Applicable Regulations • 10 CFR Part 50 o 10 CFR 50.49(d) requires an applicant or licensee to prepare a list of electric equipment important to safety as listed in 50.49(b) and to include information for this electric equipment on performance specifications under conditions existing during and following design basis accidents; the voltage, frequency, load, and other electrical characteristics for which these DG-1409, Page 2 performance specifications can be ensured; and the environmental conditions, including temperature, pressure, humidity, radiation, chemicals, and