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:
ed I&C systems intended for installation in nuclear power plants. These test methods are identified in the guidance below and may be applied in the indicated combinations subject to the clarifications and conditions specified. Acceptable limits are given for each test in the form of identified operating envelopes. MIL-STD-461G contains test methods that can be applied to address EMI/RFI susceptibility for a selection of environments. IEC 61000-4 also specifies test methods that can be applied to characterize equipment susceptibility to conducted and radiated EMI/RFI. The test methods acceptable to the NRC staff with regard to susceptibility testing for safety-related I&C systems in nuclear power plants are presented in Tables 6 and 7. Table 6 lists the EMI/RFI test methods in MIL-STD-461G while Table 7 lists the corresponding test methods in IEC 61000-4 (Refs. 27-36). Regardless of which susceptibility testing program is chosen, either set of test methods should be applied in its entirety, without selective application of individual methods (i.e., no mixing and matching of test methods). These methods cover susceptibility to conducted and radiated interference resulting from exposure to electric and magnetic fields and noise coupling through power and signal leads. Table 6 MIL-STD-461G EMI/RFI Susceptibility Test Methods Method Description CS101 Conducted susceptibility, low frequency, 30 Hz to 150 kHz CS114 Conducted susceptibility, high frequency, 10 kHz to 30 MHz CS115 Conducted susceptibility, bulk cable injection, impulse excitation CS116 Conducted susceptibility, damped sinusoidal transients,10 kHz to 100 MHz RS101 Radiated susceptibility, magnetic field, 30 Hz to 100 kHz RS103 Radiated susceptibility, electric field, 30 MHz to 10 GHz C = conducted, R = radiated, and S = susceptibility DG-1333, Page 17 Table 7 IEC 61000-4 EMI/RFI Susceptibility Test Methods Method Description 61000-4-4 Conducted susceptibility, electrically fast transients/bursts 61000-4-5