IEEE PC37.105/D10
Unapproved IEEE Draft Standard Qualifying Class 1E Protective Relays and Auxiliaries for Nuclear Power Generating Stations (Revision of IEEE C37.105-1987)
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Language: English
License Type: Single User
Updates: Not Included
About This Item
IEEE PC37.105/D10 is an unapproved IEEE draft standard for qualifying Class 1E protective relays and auxiliaries used in nuclear power generating stations. It focuses on the technical requirements needed to evaluate these devices for safety-related service, helping ensure they perform as intended in demanding power-system applications. As a draft revision of IEEE C37.105-1987, it is relevant to engineers and procurement teams working with protection equipment where reliability, consistency, and qualification are critical.
Overview of IEEE PC37.105/D10
This draft specification addresses the qualification of protective relays and auxiliary devices assigned to Class 1E service in nuclear power environments. In practice, that means it is concerned with equipment used in protection and control schemes that support safe electrical operation under abnormal conditions. IEEE PC37.105/D10 is relevant to the design, testing, and acceptance of relay-based hardware, especially where performance expectations must be documented and aligned with nuclear plant requirements.
Typical use cases
IEEE PC37.105/D10 is typically used when specifying, reviewing, or qualifying protection relays, trip units, and related auxiliary components for nuclear generating station applications. It may guide engineering teams responsible for safety-related electrical systems, control panels, and power-system protection schemes. The document is also useful during vendor evaluation, design verification, and procurement of equipment intended to meet Class 1E expectations in power, energy, and industry applications.
Why it matters
For safety-related electrical equipment, qualification is not just a formality; it helps reduce uncertainty about how devices will perform over time and under required operating conditions. IEEE PC37.105/D10 supports more consistent design control, testing, and acceptance of protective relays and auxiliaries used in nuclear facilities. That consistency can improve compliance efforts, simplify specification writing, and lower the risk of mismatched equipment in critical protection systems. IEEE PC37.105/D10 therefore has practical value for both technical review and procurement decisions.
- Class 1E protective relays
- Auxiliary devices for nuclear stations
- Qualification and acceptance criteria
- Protection and control applications
- Revision context: IEEE C37.105-1987
- Publication Date: 2004
- Standard Status: Inactive
- Publisher: IEEE
- Subject: Power, Energy and Industry Applications
- Official IEEE: Doi link
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