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:
re acceptable to the NRC staff for accomplishing EMI/RFI susceptibility testing for safety-related I&C systems intended for installation in nuclear power plants. Where applicable, these standards also describe conditions under which specific test methods may be omitted. 4.1 EMI/RFI Conducted Susceptibility Testing—Power Leads The MIL-STD-461G test methods that are acceptable to the NRC staff in addressing conducted EMI/RFI susceptibility along power leads are listed in Table 8. The comparable IEC 61000-4 test methods acceptable to the NRC staff to characterize equipment susceptibility to conducted EMI/RFI along power leads are listed in Table 9. These test methods cover susceptibility to conducted interference resulting from noise coupling through the power leads of safety-related I&C systems in nuclear power plants. Guidance on the test methods and operating envelopes follow below. Table 8 MIL-STD-461G Conducted Susceptibility Test Methods—Power Leads Method Description CS101 Conducted susceptibility, low-frequency, 30 Hz to 150 kHz CS114 Conducted susceptibility, high-frequency, 10 kHz to 30 MHz C = conducted and S = susceptibility DG-1333, Page 18 Table 9 IEC 61000-4 Conducted Susceptibility Test Methods—Power Leads Method Description 61000-4-6 Conducted susceptibility, disturbances induced by radio-frequency fields, 150 kHz to 80 MHz 61000-4-13 Conducted susceptibility, low-frequency, 16 Hz to 2.4 kHz 61000-4-16 Conducted susceptibility, low-frequency, 15 Hz to 150 kHz 4.1.1 CS101—Conducted Susceptibility, Low Frequency The CS101 test ensures that equipment and subsystems are not susceptible to EMI/RFI present on power leads in the frequency range 30 Hz to 150 kHz. The test is applicable to ac and dc input power leads, not including grounds and neutrals. If the equipment under test is dc operated, this test is applicable over the frequency range 30 Hz to 150 kHz. If the equipment under test is ac operated, this test is applicable starting from the second