Document: NRC Regulatory Guide
Document ID: e16da529-b6b4-4fdf-bc3f-7490180363f3
Document Type: regulatory_guide
Title: Environmental Qualification of Certain Electric Equipment Important to Safety for Nuclear Power Plants (Rev. 2)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML2018/ML20183A423.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-1.89
CFR Part: 
CFR Title: 

Content:
tors” (Ref. 13), provides guidance to licensees of operating power reactors on acceptable applications of alternative source terms (ASTs); the scope, nature, and documentation of associated analyses and evaluations; consideration of impacts on analyzed risk; and content of submittals related to the use of ASTs in radiological consequence analyses at operating power reactors. • RG 1.180, “Guidelines for Evaluating Electromagnetic and Radio Frequency Interference in Safety-Related Instrumentation and Control Systems” (Ref. 14), describes design, installation, and testing practices acceptable to the NRC staff for addressing the effects of EMI/RFI and power surges on safety-related I&C systems in a nuclear power plant environment. Recognizing that this RG and IEC/IEEE 60780-323, Edition 1, 2016-02, provide the fundamental approach for establishing EQ of electrical equipment in general, the following regulatory guidance documents include additional information for qualifying specific equipment or provide an additional level of detail for qualifying equipment: • RG 1.209, “Guidelines for Environmental Qualification of Safety-Related Computer-Based Instrumentation and Control Systems in Nuclear Power Plants,” describes a method that the NRC staff considers acceptable for determining the EQ procedures for safety-related computer-based I&C systems for service within nuclear power plants (Ref. 15). • RG 1.40, “Qualification of Continuous Duty Safety-Related Motors for Nuclear Power Plants,” describes a method that the staff of the NRC considers acceptable to implement regulatory requirements with regard to the design, inspection, and testing of normal atmosphere cleanup systems for controlling releases of airborne radioactive materials to the environment during normal operations, including anticipated operational occurrences (Ref. 16). • RG 1.63, “Electric Penetration Assemblies in Containment Structures for Nuclear Power Plants,” describes a method