IEEE C37.98-2023
IEEE Standard for Seismic Qualification Testing of Protective Relays and Auxiliaries for Nuclear Facilities
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- Language: English
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About This Item
IEEE C37.98-2023 is the standard for seismic qualification testing of protective relays and auxiliary equipment used in nuclear facilities. It addresses how these devices should be evaluated to help confirm performance during earthquake-related conditions, where reliable operation is critical to plant safety and control. As a nuclear engineering document, IEEE C37.98-2023 supports consistent test planning and qualification decisions for equipment that must remain functional under seismic stress.
About IEEE C37.98-2023
This standard focuses on the seismic qualification of protective relays and auxiliaries, defining a technical basis for demonstrating that the equipment can withstand specified seismic demands. It is relevant to nuclear applications where relay operation may affect protection, monitoring, or control functions. By outlining a structured testing approach, IEEE C37.98-2023 helps align engineering practice, qualification evidence, and compliance expectations for safety-related electrical and control equipment.
Where is IEEE C37.98-2023 used?
IEEE C37.98-2023 is commonly applied in nuclear facility environments where protective relays, relay panels, and associated auxiliary devices need seismic qualification. It may be used during design, procurement, testing, and documentation of equipment intended for plant protection or support functions. The standard is especially relevant when electrical and control components must be shown to remain reliable after earthquake loading, whether in new installations, replacements, or qualification updates for existing systems.
Importance in practice
In practice, this standard helps reduce uncertainty in how seismic testing is performed and interpreted for critical protective equipment. That matters for safety analysis, design control, and procurement because qualified performance can affect plant readiness and regulatory confidence. IEEE C37.98-2023 also supports consistency across test programs, making it easier to compare results, document compliance, and manage risk for relays and auxiliaries that must function dependably in nuclear service.
- Seismic qualification of protective relays
- Auxiliary equipment for nuclear facilities
- Testing and compliance documentation
- Design and procurement support
- Publication Date: 2023
- Standard Status: Active
- Publisher: IEEE
- Subject: Nuclear Engineering; Power, Energy and Industry Applications; Geoscience
- Official IEEE: Doi link
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