Document: NRC Regulatory Guide
Document ID: 82021804-a487-471b-a76c-095315525b53
Document Type: regulatory_guide
Title: Guidelines for Evaluating Electromagnetic and Radio-Frequency Interference in Safety-Related Instrumentation and Control Systems (Rev. 2)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML1628/ML16281A531.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-1.180
CFR Part: 
CFR Title: 

Content:
ls) where experience and confirmatory research warrants. Conditions under which specific test criteria may be omitted are also offered based on technical considerations. The updated standards that are endorsed in this RG include: • MIL-STD-461G, “Requirements for the Control of Electromagnetic Interference Characteristics of Subsystems and Equipment,” (Ref. 12), • Parts of the commercial International Electrotechnical Commission (IEC) 61000 series on EMC: o IEC 61000-3, “Electromagnetic Compatibility (EMC) - Part 3: Limits” (Ref. 13), o IEC 61000-4, “Electromagnetic Compatibility (EMC) - Part 4: Testing and Measurement Techniques” (Ref. 14) and o IEC 61000-6, Electromagnetic Compatibility (EMC) - Part 6: Generic Standards” (Ref. 15). • Institute of Electrical and Electronics Engineers (IEEE) standards: o IEEE Standard (Std.) 1050-2004, “IEEE Guide for Instrumentation and Control Equipment Grounding in Generating Stations” (Ref. 16); o IEEE Std. C62.41.1-2002, “IEEE Guide on the Surge Environment in Low-Voltage (1000 V and Less) AC Power Circuits” (Ref. 17); o IEEE Std. C62.41.2-2002, “IEEE Recommended Practice on Characterization of Surges in Low-Voltage (1000 V or Less) AC Power Circuits” (Ref. 18); and o IEEE Std. C62.45-2002, “IEEE Recommended Practice on Surge Testing for Equipment Connected to Low-Voltage (1000 V or Less) AC Power Circuits.” (Ref. 19). The rationale for the selection of the methods and practices endorsed in this RG is that they provide a well-established, systematic approach for ensuring EMC and mitigating the effects of EMI/RFI, power surge, and electrostatic discharge on I&C equipment within their operational environment. The technical basis for selecting these particular methods and practices can be found in: • NUREG/CR-5941, “Technical Basis for Evaluating Electromagnetic and Radio- Frequency Interference in Safety-Related I&C Systems.” • NUREG/CR-6431, “Recommended Electromagnetic Operating