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EPRI TR 102323 4

Electromagnetic Interference Testing of Power Plant Equipment EPRI TR 102323 Revision 4

The EPRI TR 102323 testing standard is an essential technical resource designed to address Electromagnetic Compatibility (EMC) within nuclear power plants, focusing on the complexities introduced by electromagnetic interference (EMI) in both digital and analog instrumentation and control (I&C) systems.

The advent of digital technologies in nuclear environments underscores the need for precise EMI testing protocols. EPRI TR 102323 provides these protocols, offering engineers a methodological framework to assess and mitigate EMI risks. This ensures the continuous, safe operation of critical nuclear power plant components.

More specifically, this page pertains to Revision 4 of the EPRI TR 102323 – 2013 document. The EPRI 102323 revision 4 standard continues to enhance guidelines on electromagnetic compatibility (EMC) testing in nuclear power plants from the previous Revision 3 and sets the stage for further refinements in Revision 5.

For a deeper understanding of the evolution of these testing standards and the specific differences between the revisions, detailed information is available at the provided links:

Summary of EPRI TR 102323 Nuclear Power Plant Testing Revision 4

By carrying out detailed EMI tests as prescribed within EPRI (Electric Power Research Institute) TR 102323, power plants can actively identify and manage electromagnetic interference that could otherwise interrupt operations or cause expensive downtime.

The EMI/RFI emission data reported in the TR 102323 testing standard were collected from several nuclear plants, using procedures based off the military standards 461 (MIL-STDs). These military standards are developed by the U.S. Department of Defense for measuring emissions from equipment and emission sources.

This approach helps in navigating the complexities of EMC in a regulated environment, ensuring that all equipment, whether old or new, meets the robust EMC standards required for nuclear power plant operations.

For new or untested equipment, engagement with vendors to discuss specific EMC testing requirements is critical. This includes considerations for commercial-grade equipment and internal module and component-level replacements, ensuring that all components meet strict EMC standards to prevent failures and extend equipment lifespan.

Evaluation of Early Nuclear Power Plant Equipment Data

The EPRI TR 102323 document evaluates and analyzes early emissions data, the methods for collecting emissions data, and the considerations for testing procedures in nuclear power plants, respectively.

Overall, these sections emphasize a methodical and data-driven approach to understanding and managing electromagnetic interference in nuclear power plants. They highlight the necessity of local data collection, the relevance of standardized procedures, and the importance of aligning EMC testing procedures with actual operational conditions to ensure both safety and reliability.

Here’s a detailed summary of these sections:

Low-Frequency Conducted Emissions

This section presents a comparison of generic plant emissions data with specific emissions from plants like Palo Verde and Peach Bottom. It elaborates on the methodologies for measuring low-frequency conducted emissions across different nuclear plants.

High-Frequency Conducted Emissions

This section continues from the previous, focusing on high-frequency conducted emissions. It explains the data collection process and discusses the test results that guide regulatory standards and limits for these emissions.

Radiated Magnetic Field Emissions

Radiated magnetic field emissions discuss the specifics of radiated magnetic field emissions, detailing the procedures for measuring these emissions and their impact on plant safety and regulatory compliance.

Radiated Electric Field Emissions above 1 GHz

This section is centered on the radiated electric field emissions at frequencies above 1 GHz, exploring how these emissions are measured and the significance of their control in maintaining plant safety.

Conducted Transient Emissions

Focuses on the importance of managing conducted transient emissions, detailing the methods used for measuring these emissions and their relevance in the context of overall plant electromagnetic compatibility.

Nuclear Equipment Susceptibility and Emissions Testing Procedures


  • Low-Frequency Conducted Susceptibility: This section discusses the susceptibility of equipment to low-frequency conducted disturbances, detailing the standards and expected levels of tolerance.
  • High-Frequency Conducted Susceptibility: Focuses on the susceptibility of systems to high-frequency conducted emissions, specifying the relevant IEC standards for testing.
  • Low-Frequency Radiated Magnetic Field Susceptibility: Outlines the susceptibility of equipment to low-frequency radiated magnetic fields, with specifications on testing methods and expected compliance.
  • High-Frequency Radiated Electric Field Susceptibility: Discusses the need for equipment to withstand high-frequency radiated electric fields, including the standards applicable for testing. 
  • Surge and Electrically-Fast Transient/Burst Susceptibility: These sections provide details on susceptibility to surge and fast transient events, highlighting the critical standards and testing procedures to ensure equipment resilience.
  • Electrostatic Discharge Susceptibility: Covers the susceptibility of plant equipment to electrostatic discharges, with emphasis on the testing standards and protective measures.


  • Low-Frequency Conducted Emissions: This section addresses the limits and testing requirements for low-frequency conducted emissions from plant equipment, including compliance standards.
  • High-Frequency Conducted Emissions: Details the guidelines for controlling high-frequency conducted emissions, which are critical for maintaining the electromagnetic compatibility (EMC) of the plant environment.
  • Low-Frequency Radiated Magnetic Field Emissions: Specifies the requirements and testing procedures for low-frequency radiated magnetic emissions from equipment, ensuring they do not exceed acceptable levels.
  • High-Frequency Radiated Electric Field Emissions: Outlines the standards for high-frequency radiated electric field emissions, emphasizing the importance of adhering to specified limits to prevent interference with sensitive equipment.

Expert Nuclear Power Plant EMI Testing Laboratory

Keystone Compliance can accommodate fixed, mobile, and portable devices of all sizes. Our team strives to give our customers more time and energy on product development instead of testing. Keystone has a full lab of test equipment which permits us to provide short lead times on scheduling. 

If you are ready to start your EPRI TR 102323 and MIL-STD testing, please request a quote. Have a question about EPRI Nuclear Power Plant EMI Testing? Contact us or call (724) 657-9940 and we will determine the best course of action.

Common Nuclear Power Plant EMI Testing Standards

Department of Defense Interface Standard MIL-STD-461E

Described as “Requirements for the Control of Electromagnetic Interference Characteristics of Subsystems and Equipment”.

IEC Standard European Norm (EN) 61000


IEEE Standards

  • IEEE C62.41: Surge and Electrically-Fast Transient tests.

CISPR Standards

American National Standard Institute (ANSI) Standards

  • ANSI 63.4
  • ANSI 63.12