IEC TR 63335:2021
Nuclear power plants - Instrumentation and control systems, control rooms and electrical power systems - Specific features of small modular reactors and needs regarding standards
Available Formats:
- Availability: Immediate Download
- Language: English
- License Type: Single User
- Updates: Not Included
- Availability: Request Quote
- Language: English
- License Type: Enterprise / Multi User
- Updates: Included
About This Item
IEC TR 63335:2021 provides technical guidance on nuclear power plant instrumentation and control systems, control rooms, and electrical power systems, with particular attention to the specific features of small modular reactors and the related need for standards. It is relevant for organizations assessing how established nuclear engineering practices may need to be adapted for smaller reactor designs, especially where control, monitoring, power supply, and operating interfaces must remain robust. For engineering, procurement, and compliance teams, IEC TR 63335:2021 supports structured technical review and documented evaluation.
Overview of IEC TR 63335:2021
IEC TR 63335:2021 is a technical report that helps clarify where small modular reactor characteristics can influence instrumentation and control architecture, control room design, and electrical power system considerations. Its value lies in identifying the standards-related needs that may arise when comparing these plants with more conventional nuclear installations. The document is useful during early technical assessment, design review, and conformity assessment preparation because it helps frame operational consistency, safety expectations, and engineering documentation around the specific conditions of SMR deployment.
Compliance applications of IEC TR 63335:2021
In practice, IEC TR 63335:2021 may support specification development, gap analysis, and procurement review for nuclear plant control systems and associated electrical equipment. It can also inform verification activities for control room functions, system integration, and technical validation of design assumptions in SMR projects. Laboratories, engineering contractors, and plant owners may use it as a compliance reference when aligning internal quality workflows, testing workflows, and regulatory preparation with the distinctive requirements of compact reactor designs and their supporting systems.
Importance of compliance with IEC TR 63335:2021
Using IEC TR 63335:2021 in a technical compliance workflow can help reduce risk by improving consistency in how SMR-related control and power system features are reviewed, documented, and validated. For nuclear projects, that matters because safety, interoperability, and operational reliability depend on clear technical expectations across engineering, testing, and procurement functions. It also supports more credible conformity assessment preparation by giving teams a structured basis for comparing design choices, identifying standards needs, and aligning evidence packages with the plant’s intended operating profile.
- Guidance on instrumentation and control considerations for small modular reactor applications
- Support for control room and electrical power system technical assessment
- Useful reference for standards gap analysis and engineering documentation
- Applicable to verification, validation, and conformity assessment planning
- Publication Date: 2021-04-02
- Standard Status: Original
- Publisher: IEC
- Edition: 1
- This Version: IEC TR 63335:2021 (2021-04-02)
Please request information about the document. Contact Page
Need This Standard?
Request a personalized quote today to receive the latest edition in PDF or other available formats.
Need This Standard?
Request a personalized quote today to receive the latest edition in PDF or other available formats.
Summarize with AI
Get quick summaries using your favorite AI engine.
Online Standart Disclaimer
OnlineStandart.com is an authorized reseller of international standards, operating through partnerships with authorized distributors. We do not own the copyrights or trademarks of the standards we sell, including but not limited to those of API, ASHRAE, BSI, SAE, ASTM, IEEE, IEC, ASME, ISO, and others.
All product names, logos, and brands are the property of their respective owners and are used for identification purposes only; their use does not imply endorsement. OnlineStandart.com is not affiliated with or endorsed by any standards development organization unless explicitly stated. The content of this document is for informational purposes only and is intended to promote our licensed reselling services.
Online Standart does not host, distribute, or link to free, unlicensed, or uncertified copies of copyrighted standards. Every document we deliver is a licensed copy obtained through authorized channels and supplied with full licensing documentation. The “Free PDF Download” option on our product pages refers to this free informational document — never to a free copy of any standard.